Data Quality Report for Order ID: 187392
User ID: singhd1    Date completed: 2017-08-22
All DQRs
DQR ID Subject Affected Data Streams Data Quality Metric
D161202.2 NSA/ECOR/E10 - Sensible and Latent Heat Fluxes Incorrect nsa30ecorE10.b1 Incorrect
D170623.1 NSA/ECOR/E10 - Missing Data nsa30ecorE10.b1 Missing
D040217.2 SGP/CO2FLX/C1 - Reprocessing User Notes sgp30co2flx60mC1.b1 Note
D130411.1 NSA/ECOR/E10 - CO2 and H2O Fluxes Missing nsa30ecorE10.b1 Incorrect
D160718.2 NSA/ECOR/TSI/C1/E10 - Data Missing nsa30ecorE10.b1 Missing
D150717.2 NSA/ECOR/E10 - Some Measurements Incorrect During Servicing nsa30ecorE10.b1 Incorrect
D150105.1 MAO/ECOR/M1 - All Data Missing mao30ecorM1.b1 Missing
D140625.1 MAO/ECOR/M1 - Fluxes and wind measurements incorrect. mao30ecorM1.b1 Incorrect
D150512.1 MAO/ECOR/M1 - Latent Heat Flux and Water Vapor Density Incorrect mao30ecorM1.b1 Incorrect
D140825.3 MAO/ECOR/M1 - Latent Heat Flux and CO2 Flux Incorrect mao30ecorM1.b1 Incorrect
D131005.2 NSA/ECOR/E10 - Missing pressure and temperature data nsa30ecorE10.b1 Missing
D150212.2 NSA/ECOR/E10 - Data Missing nsa30ecorE10.b1 Missing
D170120.11 SGP/CO2FLX/C1 - Winter storm caused power outage sgpco2flx4mC1.b1 Missing
D150218.1 NSA/ECOR/E10 - All Data Missing nsa30ecorE10.b1 Missing
D150331.4 NSA/ECOR/E10 - Pressure and Temperature Measurements Missing nsa30ecorE10.b1 Missing
D070803.2 SGP/CO2FLX/C1 - Disturbance around site sgp30co2flx60mC1.b1 Incorrect
D140206.1 NSA/ECOR/E10 - Missing data nsa30ecorE10.b1 Missing
D170310.16 SGP/Central Facility - Power Outage sgpirt25m20sC1.a0 Note
D081202.1 SGP/CO2FLX/C1 - Reprocessed: Recalibration sgp30co2flx4mC1.b1 Note
D140529.2 MAO/ECOR/M1 - Wind Direction Too Low by About 10 Degrees. mao30ecorM1.b1 Incorrect
D150402.3 MAO/ECOR/M1 - Missing Data mao30ecorM1.b1 Missing
D060107.1 SGP/CO2FLX/C1 - Reprocess: calibration error sgp30co2flx4mC1.b1 Suspect
D140529.1 MAO/ECOR/M1 - CO2/H2O Means, CO2 flux, and Latent Heat Flux Incorrect mao30ecorM1.b1 Incorrect
D140905.1 MAO/ECOR/M1 - Data Missing mao30ecorM1.b1 Missing
D130110.2 NSA/ECOR/E10 - Missing data nsa30ecorE10.b1 Missing
D161017.4 NSA/ECOR/E10 - Sonic Temperature Fluctuations nsa30ecorE10.b1 Suspect
D071011.2 SGP/CO2FLX/C1 - Reprocessing Notice (RID 432) sgp30co2flx4mC1.b1 Note
D041026.1 SGP/CO2FLX/C1 - Reprocess: Units sgp30co2flx60mC1.b1 Note
D130411.2 NSA/ECOR/E10 - H2O fluxes missing nsa30ecorE10.b1 Incorrect
D170220.3 SGP/CO2FLX/C1 - Incorrect raw file header sgp30co2flx25mC1.a1 Missing
 
DQR ID: D161202.2    (Back to Top)
Start Date Start Time End Date End Time Data Quality Metric
2016-10-28 00:00:00 2016-10-29 23:30:00 Incorrect
Subject: NSA/ECOR/E10 - Sensible and Latent Heat Fluxes Incorrect
Affected Datastreams: nsa30ecorE10.b1
Description Sensible and latent heat fluxes were incorrect when the CO2/H2O analyzer and sonic anemometer were covered by frost, ice, or snow.
Measurements
  • cvar_rot_wq (Rotated covariance wq)
  • var_v (Variance of variable mean_v)
  • var_q (variance of q)
  • var_c (variance of c)
  • ustar (Friction velocity)
  • cvar_rot_uw (Rotated covariance uw)
  • cvar_tc (Covariance tc)
  • cvar_qc (Covariance qc)
  • fc (CO2 flux)
  • var_t (Variance of variable mean_t)
  • mean_rot_u (Rotated mean u)
  • cvar_rot_ut (Rotated covariance ut)
  • mean_t (Mean t temperature (sonic anemometer))
  • mean_q (mean H2O density)
  • mean_rot_w (Rotated mean w)
  • cvar_tq (Covariance tq)
  • wind_spd (Vector averaged wind speed)
  • cvar_vw (Covariance vw)
  • cvar_uv (Covariance uv)
  • var_t (variance of t)
  • lv_e (Latent heat flux)
  • var_w (Variance of variable mean_w)
  • mean_rot_u (mean horizontal wind speed)
  • cvar_wt (Covariance wt)
  • h (corrected sensible heat flux)
  • mean_q (Mean water vapor density)
  • cvar_vq (Covariance vq)
  • cvar_uq (Covariance uq)
  • mean_t (mean sonic temperature (t), i.e. virtual temperature)
  • cvar_rot_vq (Rotated covariance vq)
  • mean_w (Mean w (vertical) wind component)
  • cvar_uc (Covariance uc)
  • var_rot_v (Rotated variance v)
  • mr (Mixing ratio)
  • cvar_vt (Covariance vt)
  • cvar_wc (Covariance wc)
  • h (Sensible heat flux)
  • var_u (Variance of variable mean_u)
  • mean_rot_v (Rotated mean v)
  • mean_u (Mean u wind component)
  • cvar_vc (Covariance vc)
  • ustar (friction velocity)
  • cvar_rot_uc (Rotated covariance uc)
  • std_wind_dir (Standard deviation of wind direction)
  • cvar_rot_wt (Rotated covariance wt)
  • cvar_rot_uv (Rotated covariance uv)
  • wind_dir (Vector averaged wind direction)
  • mean_v (Mean v wind component)
  • mean_c (mean CO2 density)
  • cvar_rot_vc (Rotated covariance vc)
  • var_q (Variance of variable mean_q)
  • var_rot_w (Rotated variance w)
  • mean_c (Mean CO2 density)
  • cvar_rot_vw (Rotated covariance vw)
  • real_mr (Status of source for mixing ratio)
  • cvar_ut (Covariance ut)
  • cvar_uw (Covariance uw)
  • var_c (Variance of variable mean_c)
  • var_rot_v (variance of v)
  • cvar_wq (Covariance wq)
  • cvar_rot_wc (Rotated covariance wc)
  • var_rot_w (variance of w)
  • cvar_rot_uq (Rotated covariance uq)
  • var_rot_u (Rotated variance u)
  • cvar_rot_vt (Rotated covariance vt)
  • var_rot_u (variance of u)
 
DQR ID: D170623.1    (Back to Top)
Start Date Start Time End Date End Time Data Quality Metric
2017-06-20 19:00:00 2017-06-22 13:59:00 Missing
Subject: NSA/ECOR/E10 - Missing Data
Affected Datastreams: nsa30ecorE10.b1
Description Data missing for this period.
Measurements
  • mean_spk_w (Mean value of "spike" w samples)
  • qc_time (Quality check results on field: Time offset from midnight)
  • n_spk_q (Number of q samples removed due to spikes)
  • n_good_c (Number of valid c samples)
  • qc_n_good_w (Quality check results on field: Number of valid w samples)
  • var_v (Variance of variable mean_v)
  • mean_spk_u (Mean value of "spike" u samples)
  • mean_spk_t (Mean value of "spike" t samples)
  • cvar_tc (Covariance tc)
  • var_t (Variance of variable mean_t)
  • qc_wind_spd (Quality check results on field: Vector averaged wind speed)
  • qc_wind_dir (Quality check results on field: Vector averaged wind direction)
  • qc_mr (Quality check results on field: Mixing ratio)
  • mean_q (mean H2O density)
  • qc_lv (Quality check results on field: Latent heat of vaporization)
  • cvar_tq (Covariance tq)
  • temp_irga (Average temperature (IGRA internal sensor))
  • qc_mean_w (Quality check results on field: Mean w (vertical) wind component)
  • var_t (variance of t)
  • mean_rot_u (mean horizontal wind speed)
  • n_bad_q (Number of bad or out of range q samples)
  • cvar_uc (Covariance uc)
  • var_rot_v (Rotated variance v)
  • qc_var_q (Quality check results on field: Variance of variable mean_q)
  • lon (East longitude)
  • wind_dir (Vector averaged wind direction)
  • var_q (Variance of variable mean_q)
  • kurt_c (Kurtosis of variable mean_c)
  • qc_lv_e (Quality check results on field: Latent heat flux)
  • real_mr (Status of source for mixing ratio)
  • cvar_rot_vw (Rotated covariance vw)
  • mean_c (Mean CO2 density)
  • var_c (Variance of variable mean_c)
  • qc_h (Quality check results on field: Sensible heat flux)
  • cvar_wq (Covariance wq)
  • cvar_rot_wc (Rotated covariance wc)
  • phi (Rotation to v wind component = zero)
  • skew_u (Skewness of variable mean_u)
  • qc_n_good_c (Quality check results on field: Number of valid c samples)
  • cvar_rot_wq (Rotated covariance wq)
  • qc_var_u (Quality check results on field: Variance of variable mean_u)
  • qc_var_t (Quality check results on field: Variance of variable mean_t)
  • skew_t (Skewness of variable mean_t)
  • base_time (Base time in Epoch)
  • qc_var_c (Quality check results on field: Variance of variable mean_c)
  • var_q (variance of q)
  • cp (Specific heat of moist air)
  • n_bad_t (Number of bad or out of range t samples)
  • n_bad_v (Number of bad or out of range v samples)
  • n_bad_c (Number of bad or out of range c samples)
  • std_elev (Standard deviation of wind elevation angle)
  • mean_spk_q (Mean value of "spike" q samples)
  • n_spk_c (Number of c samples removed due to spikes)
  • cvar_qc (Covariance qc)
  • fc (CO2 flux)
  • kurt_w (Kurtosis of variable mean_w)
  • cvar_uv (Covariance uv)
  • n_bad_w (Number of bad or out of range w samples)
  • cvar_rot_vq (Rotated covariance vq)
  • kurt_q (Kurtosis of variable mean_q)
  • lv (Latent heat of vaporization)
  • cvar_rot_wt (Rotated covariance wt)
  • qc_var_w (Quality check results on field: Variance of variable mean_w)
  • alt (Altitude above mean sea level)
  • rho (Moist air density)
  • var_rot_w (Rotated variance w)
  • qc_fc (Quality check results on field: CO2 flux)
  • mean_spk_v (Mean value of "spike" v samples)
  • n_good_v (Number of valid v samples)
  • qc_mean_u (Quality check results on field: Mean u wind component)
  • qc_elev (Quality check results on field: Vertical (elevation) wind angle)
  • mean_spk_c (Mean value of "spike" c samples)
  • var_rot_v (variance of v)
  • var_rot_w (variance of w)
  • cvar_rot_uq (Rotated covariance uq)
  • n_bad_irga (Number of samples with "IRGA hardware problem" flag)
  • atm_pres (Average atmospheric pressure (IGRA internal sensor))
  • cvar_rot_vt (Rotated covariance vt)
  • var_rot_u (variance of u)
  • qc_var_v (Quality check results on field: Variance of variable mean_v)
  • real_lv (Status of source for latent heat of vaporization)
  • real_cp (Status of source for specific heat of moist air)
  • real_rho (Status of source for moist air density)
  • time_offset (Time offset from base_time)
  • ustar (Friction velocity)
  • kurt_u (Kurtosis of variable mean_u)
  • cvar_rot_ut (Rotated covariance ut)
  • lv_e (Latent heat flux)
  • qc_mean_v (Quality check results on field: Mean v wind component)
  • var_w (Variance of variable mean_w)
  • qc_rho (Quality check results on field: Moist air density)
  • cvar_wt (Covariance wt)
  • h (corrected sensible heat flux)
  • cvar_uq (Covariance uq)
  • mean_t (mean sonic temperature (t), i.e. virtual temperature)
  • mr (Mixing ratio)
  • mean_w (Mean w (vertical) wind component)
  • cvar_vt (Covariance vt)
  • cvar_wc (Covariance wc)
  • phi (rotation to zero v)
  • cvar_rot_uc (Rotated covariance uc)
  • std_wind_dir (Standard deviation of wind direction)
  • time (Time offset from midnight)
  • cvar_rot_uv (Rotated covariance uv)
  • n_spk_v (Number of v samples removed due to spikes)
  • mean_c (mean CO2 density)
  • mean_v (Mean v wind component)
  • cvar_uw (Covariance uw)
  • skew_v (Skewness of variable mean_v)
  • n_good_t (Number of valid t samples)
  • qc_std_wind_dir (Quality check results on field: Standard deviation of wind direction)
  • n_spk_t (Number of t samples removed due to spikes)
  • n_spk_u (Number of u samples removed due to spikes)
  • skew_w (Skewness of variable mean_w)
  • n_good_u (Number of valid u samples)
  • qc_n_good_v (Quality check results on field: Number of valid v samples)
  • elev (Vertical (elevation) wind angle)
  • lat (North latitude)
  • qc_n_good_t (Quality check results on field: Number of valid t samples)
  • var_c (variance of c)
  • qc_k (Quality check results on field: Momentum flux (dynamic))
  • cvar_rot_uw (Rotated covariance uw)
  • mean_rot_u (Rotated mean u)
  • qc_ustar (Quality check results on field: Friction velocity)
  • n_bad_sonic (Number of samples with bad sonic status flag)
  • mean_t (Mean t temperature (sonic anemometer))
  • mean_rot_w (Rotated mean w)
  • wind_spd (Vector averaged wind speed)
  • cvar_vw (Covariance vw)
  • qc_atm_pres (Quality check results on field: Average atmospheric pressure (IGRA internal sensor))
  • qc_std_elev (Quality check results on field: Standard deviation of wind elevation angle)
  • qc_n_good_q (Quality check results on field: Number of valid q samples)
  • cvar_vq (Covariance vq)
  • n_spk_w (Number of w samples removed due to spikes)
  • qc_mean_q (Quality check results on field: Mean water vapor density)
  • qc_mean_t (Quality check results on field: Mean t temperature (sonic anemometer))
  • mean_q (Mean water vapor density)
  • n_bad_irga_light (Number of samples with IRGA optical path blocked flag)
  • h (Sensible heat flux)
  • var_u (Variance of variable mean_u)
  • n_bad_u (Number of bad or out of range u samples)
  • mean_rot_v (Rotated mean v)
  • ustar (friction velocity)
  • cvar_vc (Covariance vc)
  • qc_temp_irga (Quality check results on field: Average temperature (IGRA internal sensor))
  • k (Momentum flux (dynamic))
  • skew_c (Skewness of variable mean_c)
  • qc_mean_c (Quality check results on field: Mean CO2 density)
  • mean_u (Mean u wind component)
  • cvar_rot_vc (Rotated covariance vc)
  • skew_q (Skewness of variable mean_q)
  • qc_cp (Quality check results on field: Specific heat of moist air)
  • n_good_w (Number of valid w samples)
  • qc_n_good_u (Quality check results on field: Number of valid u samples)
  • mean_cooler (Average voltage of IRGA cooler)
  • cvar_ut (Covariance ut)
  • var_rot_u (Rotated variance u)
  • kurt_t (Kurtosis of variable mean_t)
  • n_good_q (Number of valid q samples)
  • kurt_v (Kurtosis of variable mean_v)
 
DQR ID: D040217.2    (Back to Top)
Start Date Start Time End Date End Time Data Quality Metric
2002-12-18 00:00:00 2004-02-17 00:00:00 Note
Subject: SGP/CO2FLX/C1 - Reprocessing User Notes
Affected Datastreams: sgp30co2flx60mC1.b1
Description Format Changes: To comply with archive standards, the name of the unlimited dimention variable in the cdf level b1 files was changed from 'record' to 'time'. This does not affect data quality.
Measurements
  • base_time (Base time in Epoch)
  • var_q (variance of q)
  • time_offset (Time offset from base_time)
  • doy (fractional day of the year)
  • var_c (variance of c)
  • ustar (Friction velocity)
  • mean_rot_u (Rotated mean u)
  • var_t (Variance of variable mean_t)
  • mean_t (Mean t temperature (sonic anemometer))
  • mean_p (mean IRGA pressure)
  • mean_q (mean H2O density)
  • le (WPL corrected latent heat flux)
  • var_t (variance of t)
  • mean_rot_u (mean horizontal wind speed)
  • wdir (horizontal wind direction)
  • h (corrected sensible heat flux)
  • mean_q (Mean water vapor density)
  • fc_wpl_h (additive WPL H correction to c flux)
  • yyyydddhhmmss (start of integration interval)
  • mean_t (mean sonic temperature (t), i.e. virtual temperature)
  • var_rot_v (Rotated variance v)
  • h (Sensible heat flux)
  • zm (height of instument from tower base)
  • phi (rotation to zero v)
  • fc_corr (WPL corrected CO2 flux)
  • ustar (friction velocity)
  • site_latitude (latitude of instument location)
  • site_elevation (height of tower base from sea level)
  • fc_wpl_le (additive WPL LE correction to c flux)
  • mean_c (mean CO2 density)
  • theta (rotation to zero w)
  • site_longitude (longitude of instument location)
  • var_q (Variance of variable mean_q)
  • var_rot_w (Rotated variance w)
  • mean_c (Mean CO2 density)
  • var_c (Variance of variable mean_c)
  • var_rot_v (variance of v)
  • phi (Rotation to v wind component = zero)
  • Lmoni (Monin-Obukhov length scale)
  • var_rot_w (variance of w)
  • var_rot_u (Rotated variance u)
  • var_rot_u (variance of u)
 
DQR ID: D130411.1    (Back to Top)
Start Date Start Time End Date End Time Data Quality Metric
2013-01-03 16:30:00 2013-04-09 19:35:00 Incorrect
Subject: NSA/ECOR/E10 - CO2 and H2O Fluxes Missing
Affected Datastreams: nsa30ecorE10.b1
Description The CO2/H2O sensor head cable was disconnected when the ECOR tripod failure occurred on 12/22/2012. The problem was rectified by plugging in the cable and cleaning the LI-7500 sensor head windows.
Measurements
  • n_spk_q (Number of q samples removed due to spikes)
  • cvar_rot_wq (Rotated covariance wq)
  • n_good_c (Number of valid c samples)
  • var_q (variance of q)
  • mean_spk_q (Mean value of "spike" q samples)
  • n_bad_c (Number of bad or out of range c samples)
  • var_c (variance of c)
  • n_spk_c (Number of c samples removed due to spikes)
  • cvar_tc (Covariance tc)
  • cvar_qc (Covariance qc)
  • fc (CO2 flux)
  • mean_q (mean H2O density)
  • cvar_tq (Covariance tq)
  • lv_e (Latent heat flux)
  • n_bad_q (Number of bad or out of range q samples)
  • cvar_vq (Covariance vq)
  • mean_q (Mean water vapor density)
  • cvar_uq (Covariance uq)
  • cvar_uc (Covariance uc)
  • cvar_rot_vq (Rotated covariance vq)
  • cvar_wc (Covariance wc)
  • kurt_q (Kurtosis of variable mean_q)
  • cvar_vc (Covariance vc)
  • skew_c (Skewness of variable mean_c)
  • cvar_rot_uc (Rotated covariance uc)
  • mean_c (mean CO2 density)
  • cvar_rot_vc (Rotated covariance vc)
  • kurt_c (Kurtosis of variable mean_c)
  • var_q (Variance of variable mean_q)
  • skew_q (Skewness of variable mean_q)
  • mean_c (Mean CO2 density)
  • var_c (Variance of variable mean_c)
  • cvar_wq (Covariance wq)
  • cvar_rot_wc (Rotated covariance wc)
  • mean_spk_c (Mean value of "spike" c samples)
  • cvar_rot_uq (Rotated covariance uq)
  • n_good_q (Number of valid q samples)
 
DQR ID: D160718.2    (Back to Top)
Start Date Start Time End Date End Time Data Quality Metric
2016-07-12 15:10:30 2016-07-15 00:00:00 Missing
Subject: NSA/ECOR/TSI/C1/E10 - Data Missing
Affected Datastreams: nsa30ecorE10.b1
Description Site data systems were being upgraded during this time.
Measurements
  • mean_spk_w (Mean value of "spike" w samples)
  • qc_time (Quality check results on field: Time offset from midnight)
  • n_spk_q (Number of q samples removed due to spikes)
  • n_good_c (Number of valid c samples)
  • qc_n_good_w (Quality check results on field: Number of valid w samples)
  • var_v (Variance of variable mean_v)
  • mean_spk_u (Mean value of "spike" u samples)
  • mean_spk_t (Mean value of "spike" t samples)
  • cvar_tc (Covariance tc)
  • var_t (Variance of variable mean_t)
  • qc_wind_spd (Quality check results on field: Vector averaged wind speed)
  • qc_lv (Quality check results on field: Latent heat of vaporization)
  • qc_wind_dir (Quality check results on field: Vector averaged wind direction)
  • mean_q (mean H2O density)
  • qc_mr (Quality check results on field: Mixing ratio)
  • cvar_tq (Covariance tq)
  • qc_mean_w (Quality check results on field: Mean w (vertical) wind component)
  • temp_irga (Average temperature (IGRA internal sensor))
  • var_t (variance of t)
  • mean_rot_u (mean horizontal wind speed)
  • n_bad_q (Number of bad or out of range q samples)
  • cvar_uc (Covariance uc)
  • var_rot_v (Rotated variance v)
  • qc_var_q (Quality check results on field: Variance of variable mean_q)
  • lon (East longitude)
  • wind_dir (Vector averaged wind direction)
  • kurt_c (Kurtosis of variable mean_c)
  • var_q (Variance of variable mean_q)
  • qc_lv_e (Quality check results on field: Latent heat flux)
  • real_mr (Status of source for mixing ratio)
  • mean_c (Mean CO2 density)
  • cvar_rot_vw (Rotated covariance vw)
  • var_c (Variance of variable mean_c)
  • qc_h (Quality check results on field: Sensible heat flux)
  • cvar_wq (Covariance wq)
  • cvar_rot_wc (Rotated covariance wc)
  • phi (Rotation to v wind component = zero)
  • skew_u (Skewness of variable mean_u)
  • qc_n_good_c (Quality check results on field: Number of valid c samples)
  • cvar_rot_wq (Rotated covariance wq)
  • qc_var_u (Quality check results on field: Variance of variable mean_u)
  • base_time (Base time in Epoch)
  • qc_var_t (Quality check results on field: Variance of variable mean_t)
  • skew_t (Skewness of variable mean_t)
  • cp (Specific heat of moist air)
  • var_q (variance of q)
  • qc_var_c (Quality check results on field: Variance of variable mean_c)
  • mean_spk_q (Mean value of "spike" q samples)
  • n_bad_v (Number of bad or out of range v samples)
  • std_elev (Standard deviation of wind elevation angle)
  • n_bad_c (Number of bad or out of range c samples)
  • n_bad_t (Number of bad or out of range t samples)
  • n_spk_c (Number of c samples removed due to spikes)
  • cvar_qc (Covariance qc)
  • fc (CO2 flux)
  • kurt_w (Kurtosis of variable mean_w)
  • cvar_uv (Covariance uv)
  • n_bad_w (Number of bad or out of range w samples)
  • cvar_rot_vq (Rotated covariance vq)
  • kurt_q (Kurtosis of variable mean_q)
  • lv (Latent heat of vaporization)
  • cvar_rot_wt (Rotated covariance wt)
  • qc_var_w (Quality check results on field: Variance of variable mean_w)
  • alt (Altitude above mean sea level)
  • rho (Moist air density)
  • var_rot_w (Rotated variance w)
  • qc_fc (Quality check results on field: CO2 flux)
  • mean_spk_v (Mean value of "spike" v samples)
  • n_good_v (Number of valid v samples)
  • qc_mean_u (Quality check results on field: Mean u wind component)
  • mean_spk_c (Mean value of "spike" c samples)
  • qc_elev (Quality check results on field: Vertical (elevation) wind angle)
  • var_rot_w (variance of w)
  • var_rot_v (variance of v)
  • n_bad_irga (Number of samples with "IRGA hardware problem" flag)
  • cvar_rot_vt (Rotated covariance vt)
  • atm_pres (Average atmospheric pressure (IGRA internal sensor))
  • cvar_rot_uq (Rotated covariance uq)
  • var_rot_u (variance of u)
  • qc_var_v (Quality check results on field: Variance of variable mean_v)
  • real_lv (Status of source for latent heat of vaporization)
  • real_cp (Status of source for specific heat of moist air)
  • real_rho (Status of source for moist air density)
  • time_offset (Time offset from base_time)
  • ustar (Friction velocity)
  • kurt_u (Kurtosis of variable mean_u)
  • cvar_rot_ut (Rotated covariance ut)
  • lv_e (Latent heat flux)
  • var_w (Variance of variable mean_w)
  • qc_mean_v (Quality check results on field: Mean v wind component)
  • cvar_wt (Covariance wt)
  • h (corrected sensible heat flux)
  • qc_rho (Quality check results on field: Moist air density)
  • mean_t (mean sonic temperature (t), i.e. virtual temperature)
  • cvar_uq (Covariance uq)
  • mean_w (Mean w (vertical) wind component)
  • mr (Mixing ratio)
  • cvar_vt (Covariance vt)
  • cvar_wc (Covariance wc)
  • phi (rotation to zero v)
  • cvar_rot_uc (Rotated covariance uc)
  • std_wind_dir (Standard deviation of wind direction)
  • time (Time offset from midnight)
  • cvar_rot_uv (Rotated covariance uv)
  • n_spk_v (Number of v samples removed due to spikes)
  • mean_v (Mean v wind component)
  • mean_c (mean CO2 density)
  • cvar_uw (Covariance uw)
  • skew_v (Skewness of variable mean_v)
  • n_good_t (Number of valid t samples)
  • qc_std_wind_dir (Quality check results on field: Standard deviation of wind direction)
  • n_spk_t (Number of t samples removed due to spikes)
  • n_spk_u (Number of u samples removed due to spikes)
  • skew_w (Skewness of variable mean_w)
  • n_good_u (Number of valid u samples)
  • qc_n_good_v (Quality check results on field: Number of valid v samples)
  • elev (Vertical (elevation) wind angle)
  • qc_n_good_t (Quality check results on field: Number of valid t samples)
  • lat (North latitude)
  • var_c (variance of c)
  • qc_k (Quality check results on field: Momentum flux (dynamic))
  • cvar_rot_uw (Rotated covariance uw)
  • mean_rot_u (Rotated mean u)
  • qc_ustar (Quality check results on field: Friction velocity)
  • n_bad_sonic (Number of samples with bad sonic status flag)
  • mean_t (Mean t temperature (sonic anemometer))
  • mean_rot_w (Rotated mean w)
  • wind_spd (Vector averaged wind speed)
  • cvar_vw (Covariance vw)
  • qc_atm_pres (Quality check results on field: Average atmospheric pressure (IGRA internal sensor))
  • qc_std_elev (Quality check results on field: Standard deviation of wind elevation angle)
  • qc_n_good_q (Quality check results on field: Number of valid q samples)
  • mean_q (Mean water vapor density)
  • qc_mean_t (Quality check results on field: Mean t temperature (sonic anemometer))
  • n_spk_w (Number of w samples removed due to spikes)
  • cvar_vq (Covariance vq)
  • qc_mean_q (Quality check results on field: Mean water vapor density)
  • n_bad_irga_light (Number of samples with IRGA optical path blocked flag)
  • h (Sensible heat flux)
  • var_u (Variance of variable mean_u)
  • n_bad_u (Number of bad or out of range u samples)
  • mean_rot_v (Rotated mean v)
  • qc_mean_c (Quality check results on field: Mean CO2 density)
  • cvar_vc (Covariance vc)
  • skew_c (Skewness of variable mean_c)
  • qc_temp_irga (Quality check results on field: Average temperature (IGRA internal sensor))
  • k (Momentum flux (dynamic))
  • mean_u (Mean u wind component)
  • ustar (friction velocity)
  • cvar_rot_vc (Rotated covariance vc)
  • qc_cp (Quality check results on field: Specific heat of moist air)
  • skew_q (Skewness of variable mean_q)
  • n_good_w (Number of valid w samples)
  • qc_n_good_u (Quality check results on field: Number of valid u samples)
  • mean_cooler (Average voltage of IRGA cooler)
  • cvar_ut (Covariance ut)
  • var_rot_u (Rotated variance u)
  • kurt_t (Kurtosis of variable mean_t)
  • n_good_q (Number of valid q samples)
  • kurt_v (Kurtosis of variable mean_v)
 
DQR ID: D150717.2    (Back to Top)
Start Date Start Time End Date End Time Data Quality Metric
2015-07-15 16:30:00 2015-07-15 18:30:00 Incorrect
Subject: NSA/ECOR/E10 - Some Measurements Incorrect During Servicing
Affected Datastreams: nsa30ecorE10.b1
Description Some measurements were incorrect during servicing of the system.
Measurements
  • cvar_rot_wq (Rotated covariance wq)
  • var_v (Variance of variable mean_v)
  • elev (Vertical (elevation) wind angle)
  • var_q (variance of q)
  • var_c (variance of c)
  • ustar (Friction velocity)
  • cvar_rot_uw (Rotated covariance uw)
  • cvar_tc (Covariance tc)
  • cvar_qc (Covariance qc)
  • fc (CO2 flux)
  • var_t (Variance of variable mean_t)
  • mean_rot_u (Rotated mean u)
  • cvar_rot_ut (Rotated covariance ut)
  • mean_rot_w (Rotated mean w)
  • cvar_tq (Covariance tq)
  • wind_spd (Vector averaged wind speed)
  • cvar_uv (Covariance uv)
  • cvar_vw (Covariance vw)
  • var_t (variance of t)
  • lv_e (Latent heat flux)
  • var_w (Variance of variable mean_w)
  • mean_rot_u (mean horizontal wind speed)
  • cvar_wt (Covariance wt)
  • h (corrected sensible heat flux)
  • cvar_vq (Covariance vq)
  • cvar_uq (Covariance uq)
  • mean_w (Mean w (vertical) wind component)
  • cvar_uc (Covariance uc)
  • cvar_rot_vq (Rotated covariance vq)
  • var_rot_v (Rotated variance v)
  • cvar_vt (Covariance vt)
  • cvar_wc (Covariance wc)
  • h (Sensible heat flux)
  • var_u (Variance of variable mean_u)
  • mean_rot_v (Rotated mean v)
  • mean_u (Mean u wind component)
  • cvar_vc (Covariance vc)
  • ustar (friction velocity)
  • cvar_rot_uc (Rotated covariance uc)
  • std_wind_dir (Standard deviation of wind direction)
  • cvar_rot_wt (Rotated covariance wt)
  • cvar_rot_uv (Rotated covariance uv)
  • wind_dir (Vector averaged wind direction)
  • mean_v (Mean v wind component)
  • cvar_rot_vc (Rotated covariance vc)
  • var_q (Variance of variable mean_q)
  • var_rot_w (Rotated variance w)
  • cvar_rot_vw (Rotated covariance vw)
  • cvar_ut (Covariance ut)
  • cvar_uw (Covariance uw)
  • var_c (Variance of variable mean_c)
  • var_rot_v (variance of v)
  • cvar_wq (Covariance wq)
  • cvar_rot_wc (Rotated covariance wc)
  • var_rot_w (variance of w)
  • cvar_rot_uq (Rotated covariance uq)
  • var_rot_u (Rotated variance u)
  • cvar_rot_vt (Rotated covariance vt)
  • var_rot_u (variance of u)
 
DQR ID: D150105.1    (Back to Top)
Start Date Start Time End Date End Time Data Quality Metric
2014-12-22 13:00:00 2014-12-24 14:00:00 Missing
Subject: MAO/ECOR/M1 - All Data Missing
Affected Datastreams: mao30ecorM1.b1
Description All data missing because of a broken sonic breakout box wire lead.
Measurements
  • mean_spk_w (Mean value of "spike" w samples)
  • n_spk_q (Number of q samples removed due to spikes)
  • n_good_c (Number of valid c samples)
  • var_v (Variance of variable mean_v)
  • mean_spk_u (Mean value of "spike" u samples)
  • mean_spk_t (Mean value of "spike" t samples)
  • cvar_tc (Covariance tc)
  • var_t (Variance of variable mean_t)
  • mean_q (mean H2O density)
  • cvar_tq (Covariance tq)
  • temp_irga (Average temperature (IGRA internal sensor))
  • var_t (variance of t)
  • mean_rot_u (mean horizontal wind speed)
  • n_bad_q (Number of bad or out of range q samples)
  • cvar_uc (Covariance uc)
  • var_rot_v (Rotated variance v)
  • lon (East longitude)
  • wind_dir (Vector averaged wind direction)
  • var_q (Variance of variable mean_q)
  • kurt_c (Kurtosis of variable mean_c)
  • real_mr (Status of source for mixing ratio)
  • mean_c (Mean CO2 density)
  • cvar_rot_vw (Rotated covariance vw)
  • var_c (Variance of variable mean_c)
  • cvar_wq (Covariance wq)
  • cvar_rot_wc (Rotated covariance wc)
  • phi (Rotation to v wind component = zero)
  • skew_u (Skewness of variable mean_u)
  • cvar_rot_wq (Rotated covariance wq)
  • base_time (Base time in Epoch)
  • skew_t (Skewness of variable mean_t)
  • cp (Specific heat of moist air)
  • var_q (variance of q)
  • mean_spk_q (Mean value of "spike" q samples)
  • n_bad_c (Number of bad or out of range c samples)
  • std_elev (Standard deviation of wind elevation angle)
  • n_bad_t (Number of bad or out of range t samples)
  • n_bad_v (Number of bad or out of range v samples)
  • n_spk_c (Number of c samples removed due to spikes)
  • cvar_qc (Covariance qc)
  • fc (CO2 flux)
  • kurt_w (Kurtosis of variable mean_w)
  • cvar_uv (Covariance uv)
  • n_bad_w (Number of bad or out of range w samples)
  • cvar_rot_vq (Rotated covariance vq)
  • kurt_q (Kurtosis of variable mean_q)
  • lv (Latent heat of vaporization)
  • cvar_rot_wt (Rotated covariance wt)
  • alt (Altitude above mean sea level)
  • rho (Moist air density)
  • var_rot_w (Rotated variance w)
  • mean_spk_v (Mean value of "spike" v samples)
  • n_good_v (Number of valid v samples)
  • mean_spk_c (Mean value of "spike" c samples)
  • var_rot_w (variance of w)
  • n_bad_irga (Number of samples with "IRGA hardware problem" flag)
  • var_rot_v (variance of v)
  • cvar_rot_vt (Rotated covariance vt)
  • cvar_rot_uq (Rotated covariance uq)
  • atm_pres (Average atmospheric pressure (IGRA internal sensor))
  • var_rot_u (variance of u)
  • real_lv (Status of source for latent heat of vaporization)
  • real_cp (Status of source for specific heat of moist air)
  • real_rho (Status of source for moist air density)
  • time_offset (Time offset from base_time)
  • ustar (Friction velocity)
  • kurt_u (Kurtosis of variable mean_u)
  • cvar_rot_ut (Rotated covariance ut)
  • lv_e (Latent heat flux)
  • var_w (Variance of variable mean_w)
  • cvar_wt (Covariance wt)
  • h (corrected sensible heat flux)
  • cvar_uq (Covariance uq)
  • mean_t (mean sonic temperature (t), i.e. virtual temperature)
  • mr (Mixing ratio)
  • mean_w (Mean w (vertical) wind component)
  • cvar_vt (Covariance vt)
  • cvar_wc (Covariance wc)
  • phi (rotation to zero v)
  • cvar_rot_uc (Rotated covariance uc)
  • std_wind_dir (Standard deviation of wind direction)
  • time (Time offset from midnight)
  • cvar_rot_uv (Rotated covariance uv)
  • n_spk_v (Number of v samples removed due to spikes)
  • mean_v (Mean v wind component)
  • mean_c (mean CO2 density)
  • cvar_uw (Covariance uw)
  • skew_v (Skewness of variable mean_v)
  • n_good_t (Number of valid t samples)
  • n_spk_t (Number of t samples removed due to spikes)
  • skew_w (Skewness of variable mean_w)
  • n_spk_u (Number of u samples removed due to spikes)
  • n_good_u (Number of valid u samples)
  • elev (Vertical (elevation) wind angle)
  • lat (North latitude)
  • var_c (variance of c)
  • cvar_rot_uw (Rotated covariance uw)
  • mean_rot_u (Rotated mean u)
  • mean_t (Mean t temperature (sonic anemometer))
  • mean_rot_w (Rotated mean w)
  • wind_spd (Vector averaged wind speed)
  • cvar_vw (Covariance vw)
  • cvar_vq (Covariance vq)
  • mean_q (Mean water vapor density)
  • n_spk_w (Number of w samples removed due to spikes)
  • n_bad_irga_light (Number of samples with IRGA optical path blocked flag)
  • h (Sensible heat flux)
  • n_bad_u (Number of bad or out of range u samples)
  • var_u (Variance of variable mean_u)
  • mean_rot_v (Rotated mean v)
  • mean_u (Mean u wind component)
  • cvar_vc (Covariance vc)
  • ustar (friction velocity)
  • k (Momentum flux (dynamic))
  • skew_c (Skewness of variable mean_c)
  • cvar_rot_vc (Rotated covariance vc)
  • skew_q (Skewness of variable mean_q)
  • n_good_w (Number of valid w samples)
  • mean_cooler (Average voltage of IRGA cooler)
  • cvar_ut (Covariance ut)
  • var_rot_u (Rotated variance u)
  • kurt_t (Kurtosis of variable mean_t)
  • n_good_q (Number of valid q samples)
  • kurt_v (Kurtosis of variable mean_v)
 
DQR ID: D140625.1    (Back to Top)
Start Date Start Time End Date End Time Data Quality Metric
2014-06-21 01:30:00 2014-06-21 14:00:00 Incorrect
Subject: MAO/ECOR/M1 - Fluxes and wind measurements incorrect.
Affected Datastreams: mao30ecorM1.b1
Description The measurements were incorrect because the ECOR tripod was tipped over.
Measurements
  • cvar_rot_wq (Rotated covariance wq)
  • var_v (Variance of variable mean_v)
  • std_elev (Standard deviation of wind elevation angle)
  • cvar_rot_uw (Rotated covariance uw)
  • fc (CO2 flux)
  • mean_rot_u (Rotated mean u)
  • cvar_rot_ut (Rotated covariance ut)
  • mean_rot_w (Rotated mean w)
  • cvar_uv (Covariance uv)
  • cvar_vw (Covariance vw)
  • wind_spd (Vector averaged wind speed)
  • lv_e (Latent heat flux)
  • var_w (Variance of variable mean_w)
  • mean_rot_u (mean horizontal wind speed)
  • cvar_wt (Covariance wt)
  • h (corrected sensible heat flux)
  • cvar_vq (Covariance vq)
  • cvar_uq (Covariance uq)
  • cvar_rot_vq (Rotated covariance vq)
  • mean_w (Mean w (vertical) wind component)
  • var_rot_v (Rotated variance v)
  • cvar_uc (Covariance uc)
  • cvar_vt (Covariance vt)
  • cvar_wc (Covariance wc)
  • h (Sensible heat flux)
  • var_u (Variance of variable mean_u)
  • mean_rot_v (Rotated mean v)
  • mean_u (Mean u wind component)
  • cvar_vc (Covariance vc)
  • cvar_rot_uc (Rotated covariance uc)
  • std_wind_dir (Standard deviation of wind direction)
  • cvar_rot_wt (Rotated covariance wt)
  • cvar_rot_uv (Rotated covariance uv)
  • wind_dir (Vector averaged wind direction)
  • mean_v (Mean v wind component)
  • var_rot_w (variance of w)
  • cvar_rot_vc (Rotated covariance vc)
  • var_rot_w (Rotated variance w)
  • cvar_rot_vw (Rotated covariance vw)
  • cvar_ut (Covariance ut)
  • cvar_uw (Covariance uw)
  • cvar_wq (Covariance wq)
  • cvar_rot_wc (Rotated covariance wc)
  • var_rot_v (variance of v)
  • cvar_rot_uq (Rotated covariance uq)
  • var_rot_u (Rotated variance u)
  • cvar_rot_vt (Rotated covariance vt)
  • var_rot_u (variance of u)
 
DQR ID: D150512.1    (Back to Top)
Start Date Start Time End Date End Time Data Quality Metric
2015-04-05 19:00:00 2015-05-11 16:30:00 Incorrect
Subject: MAO/ECOR/M1 - Latent Heat Flux and Water Vapor Density Incorrect
Affected Datastreams: mao30ecorM1.b1
Description Latent heat flux was incorrect because the water vapor density was not being correctly measured.
Measurements
  • var_q (Variance of variable mean_q)
  • cvar_rot_wq (Rotated covariance wq)
  • mean_q (mean H2O density)
  • cvar_tq (Covariance tq)
  • var_q (variance of q)
  • lv_e (Latent heat flux)
  • cvar_wq (Covariance wq)
  • cvar_vq (Covariance vq)
  • mean_q (Mean water vapor density)
  • cvar_rot_uq (Rotated covariance uq)
  • cvar_uq (Covariance uq)
  • cvar_rot_vq (Rotated covariance vq)
  • cvar_qc (Covariance qc)
 
DQR ID: D140825.3    (Back to Top)
Start Date Start Time End Date End Time Data Quality Metric
2014-06-21 01:30:00 2014-08-24 15:00:00 Incorrect
Subject: MAO/ECOR/M1 - Latent Heat Flux and CO2 Flux Incorrect
Affected Datastreams: mao30ecorM1.b1
Description The analog outputs of the H2O/CO2 analyzer were not working; therefore latent heat flux and CO2 flux were incorrect during the specified period.
Measurements
  • cvar_rot_vc (Rotated covariance vc)
  • cvar_rot_vq (Rotated covariance vq)
  • cvar_wc (Covariance wc)
  • cvar_rot_wq (Rotated covariance wq)
  • var_q (Variance of variable mean_q)
  • cvar_qc (Covariance qc)
  • cvar_tq (Covariance tq)
  • var_q (variance of q)
  • cvar_vc (Covariance vc)
  • var_c (Variance of variable mean_c)
  • cvar_wq (Covariance wq)
  • lv_e (Latent heat flux)
  • cvar_rot_uc (Rotated covariance uc)
  • cvar_rot_wc (Rotated covariance wc)
  • var_c (variance of c)
  • cvar_vq (Covariance vq)
  • cvar_rot_uq (Rotated covariance uq)
  • cvar_uq (Covariance uq)
  • cvar_uc (Covariance uc)
  • cvar_tc (Covariance tc)
  • fc (CO2 flux)
 
DQR ID: D131005.2    (Back to Top)
Start Date Start Time End Date End Time Data Quality Metric
2013-09-26 01:00:00 2013-10-01 19:30:00 Missing
Subject: NSA/ECOR/E10 - Missing pressure and temperature data
Affected Datastreams: nsa30ecorE10.b1
Description IRGA temperature and pressure were missing during this period. Power cycling the IRGA solved this problem.
Measurements
  • temp_irga (Average temperature (IGRA internal sensor))
  • atm_pres (Average atmospheric pressure (IGRA internal sensor))
 
DQR ID: D150212.2    (Back to Top)
Start Date Start Time End Date End Time Data Quality Metric
2015-01-28 20:30:00 2015-01-30 10:00:00 Missing
Subject: NSA/ECOR/E10 - Data Missing
Affected Datastreams: nsa30ecorE10.b1
Description All or most of the data was missing during this period.
Measurements
  • mean_spk_w (Mean value of "spike" w samples)
  • n_spk_q (Number of q samples removed due to spikes)
  • n_good_c (Number of valid c samples)
  • var_v (Variance of variable mean_v)
  • mean_spk_u (Mean value of "spike" u samples)
  • mean_spk_t (Mean value of "spike" t samples)
  • cvar_tc (Covariance tc)
  • var_t (Variance of variable mean_t)
  • mean_q (mean H2O density)
  • cvar_tq (Covariance tq)
  • temp_irga (Average temperature (IGRA internal sensor))
  • var_t (variance of t)
  • mean_rot_u (mean horizontal wind speed)
  • n_bad_q (Number of bad or out of range q samples)
  • cvar_uc (Covariance uc)
  • var_rot_v (Rotated variance v)
  • lon (East longitude)
  • wind_dir (Vector averaged wind direction)
  • var_q (Variance of variable mean_q)
  • kurt_c (Kurtosis of variable mean_c)
  • mean_c (Mean CO2 density)
  • cvar_rot_vw (Rotated covariance vw)
  • real_mr (Status of source for mixing ratio)
  • var_c (Variance of variable mean_c)
  • cvar_wq (Covariance wq)
  • cvar_rot_wc (Rotated covariance wc)
  • phi (Rotation to v wind component = zero)
  • skew_u (Skewness of variable mean_u)
  • cvar_rot_wq (Rotated covariance wq)
  • base_time (Base time in Epoch)
  • skew_t (Skewness of variable mean_t)
  • cp (Specific heat of moist air)
  • var_q (variance of q)
  • mean_spk_q (Mean value of "spike" q samples)
  • n_bad_c (Number of bad or out of range c samples)
  • std_elev (Standard deviation of wind elevation angle)
  • n_bad_v (Number of bad or out of range v samples)
  • n_bad_t (Number of bad or out of range t samples)
  • n_spk_c (Number of c samples removed due to spikes)
  • cvar_qc (Covariance qc)
  • fc (CO2 flux)
  • kurt_w (Kurtosis of variable mean_w)
  • cvar_uv (Covariance uv)
  • n_bad_w (Number of bad or out of range w samples)
  • cvar_rot_vq (Rotated covariance vq)
  • kurt_q (Kurtosis of variable mean_q)
  • lv (Latent heat of vaporization)
  • cvar_rot_wt (Rotated covariance wt)
  • alt (Altitude above mean sea level)
  • rho (Moist air density)
  • var_rot_w (Rotated variance w)
  • mean_spk_v (Mean value of "spike" v samples)
  • n_good_v (Number of valid v samples)
  • mean_spk_c (Mean value of "spike" c samples)
  • var_rot_v (variance of v)
  • var_rot_w (variance of w)
  • cvar_rot_uq (Rotated covariance uq)
  • cvar_rot_vt (Rotated covariance vt)
  • atm_pres (Average atmospheric pressure (IGRA internal sensor))
  • n_bad_irga (Number of samples with "IRGA hardware problem" flag)
  • var_rot_u (variance of u)
  • real_lv (Status of source for latent heat of vaporization)
  • real_cp (Status of source for specific heat of moist air)
  • real_rho (Status of source for moist air density)
  • time_offset (Time offset from base_time)
  • ustar (Friction velocity)
  • kurt_u (Kurtosis of variable mean_u)
  • cvar_rot_ut (Rotated covariance ut)
  • lv_e (Latent heat flux)
  • var_w (Variance of variable mean_w)
  • cvar_wt (Covariance wt)
  • h (corrected sensible heat flux)
  • cvar_uq (Covariance uq)
  • mean_t (mean sonic temperature (t), i.e. virtual temperature)
  • mr (Mixing ratio)
  • mean_w (Mean w (vertical) wind component)
  • cvar_vt (Covariance vt)
  • cvar_wc (Covariance wc)
  • phi (rotation to zero v)
  • cvar_rot_uc (Rotated covariance uc)
  • std_wind_dir (Standard deviation of wind direction)
  • time (Time offset from midnight)
  • cvar_rot_uv (Rotated covariance uv)
  • n_spk_v (Number of v samples removed due to spikes)
  • mean_v (Mean v wind component)
  • mean_c (mean CO2 density)
  • cvar_uw (Covariance uw)
  • skew_v (Skewness of variable mean_v)
  • n_good_t (Number of valid t samples)
  • n_spk_t (Number of t samples removed due to spikes)
  • skew_w (Skewness of variable mean_w)
  • n_spk_u (Number of u samples removed due to spikes)
  • n_good_u (Number of valid u samples)
  • elev (Vertical (elevation) wind angle)
  • lat (North latitude)
  • var_c (variance of c)
  • cvar_rot_uw (Rotated covariance uw)
  • mean_rot_u (Rotated mean u)
  • mean_t (Mean t temperature (sonic anemometer))
  • mean_rot_w (Rotated mean w)
  • wind_spd (Vector averaged wind speed)
  • cvar_vw (Covariance vw)
  • cvar_vq (Covariance vq)
  • n_spk_w (Number of w samples removed due to spikes)
  • mean_q (Mean water vapor density)
  • n_bad_irga_light (Number of samples with IRGA optical path blocked flag)
  • h (Sensible heat flux)
  • n_bad_u (Number of bad or out of range u samples)
  • var_u (Variance of variable mean_u)
  • mean_rot_v (Rotated mean v)
  • mean_u (Mean u wind component)
  • cvar_vc (Covariance vc)
  • skew_c (Skewness of variable mean_c)
  • k (Momentum flux (dynamic))
  • ustar (friction velocity)
  • cvar_rot_vc (Rotated covariance vc)
  • skew_q (Skewness of variable mean_q)
  • n_good_w (Number of valid w samples)
  • mean_cooler (Average voltage of IRGA cooler)
  • cvar_ut (Covariance ut)
  • var_rot_u (Rotated variance u)
  • kurt_t (Kurtosis of variable mean_t)
  • n_good_q (Number of valid q samples)
  • kurt_v (Kurtosis of variable mean_v)
 
DQR ID: D170120.11    (Back to Top)
Start Date Start Time End Date End Time Data Quality Metric
2015-12-27 08:45:00 2015-12-31 16:15:00 Missing
Subject: SGP/CO2FLX/C1 - Winter storm caused power outage
Affected Datastreams: sgpco2flx4mC1.b1
Description Site power outage at SGP over the time period due to a winter storm.
Measurements
  • specific_humidity (Ambient specific humidity on a mass basis)
  • mean_spk_t (Mean value of "spike" t samples)
  • relative_humidity (Ambient relative humidity)
  • co2_molar_density (Measured or estimated molar density of co2)
  • bowen_ratio (Sensible heat flux to latent heat flux ratio)
  • qc_latent_heat_flux (Quality check results on field: Corrected latent heat flux)
  • water_vapor_partial_pressure (Ambient water vapor partial pressure)
  • sync_flag (Number of flagged records for sync)
  • northward_wind_unrotated (Wind component along the v anemometer axis)
  • cvar_tc (Covariance tc)
  • var_t (Variance of variable mean_t)
  • h2o_flux (Corrected h2o flux)
  • mean_q (mean H2O density)
  • sensible_heat_flux_uncorrected (Uncorrected sensible heat flux)
  • northward_wind (Rotated v wind component)
  • le (WPL corrected latent heat flux)
  • cvar_tq (Covariance tq)
  • var_t (variance of t)
  • mean_rot_u (mean horizontal wind speed)
  • water_vapor_partial_pressure_saturation (Ambient water vapor partial pressure at saturation)
  • var_rot_v (Rotated variance v)
  • h2o_mole_fraction (Measured or estimated mole fraction of h2o)
  • random_error_latent_heat_flux (Random error for latent heat flux)
  • latent_heat_flux_uncorrected (Uncorrected latent heat flux)
  • co2_mole_fraction (Measured or estimated mole fraction of co2)
  • zm (height of instument from tower base)
  • scaling_temperature_variance (Variance of scaling temperature)
  • co2_flux_spectral_correction_factor (Spectral correction factor for co2 flux)
  • latent_heat_flux (Corrected latent heat flux)
  • site_elevation (height of tower base from sea level)
  • lon (East longitude)
  • sensible_heat_flux (Corrected sensible heat flux)
  • sonic_temperature_spikes (Number of spikes detected and eliminated for variable sonic temperature)
  • monin_obukov_length (Monin-Obukov length)
  • var_q (Variance of variable mean_q)
  • kurt_c (Kurtosis of variable mean_c)
  • mean_c (Mean CO2 density)
  • cvar_rot_vw (Rotated covariance vw)
  • friction_velocity (Friction velocity)
  • var_c (Variance of variable mean_c)
  • cvar_rot_wc (Rotated covariance wc)
  • phi (Rotation to v wind component = zero)
  • Lmoni (Monin-Obukhov length scale)
  • co2_flux_variance (Variance of co2)
  • northward_wind_variance (Variance of northward wind)
  • pll_flag (Number of flagged records for pll)
  • cvar_rot_wq (Rotated covariance wq)
  • base_time (Base time in Epoch)
  • skew_t (Skewness of variable mean_t)
  • var_q (variance of q)
  • mean_spk_q (Mean value of "spike" q samples)
  • co2_time_lag (Time lag used to synchronize co2 time series)
  • cvar_qc (Covariance qc)
  • air_density (Density of ambient air)
  • air_heat_capacity (Specific head at constant pressure of ambient air)
  • wdir (horizontal wind direction)
  • scaling_temperature (Scaling temperature)
  • cvar_rot_vq (Rotated covariance vq)
  • kurt_q (Kurtosis of variable mean_q)
  • wind_direction (Direction from which the wind blows, with respect to Geographic or Magnetic north)
  • fc_corr (WPL corrected CO2 flux)
  • site_latitude (latitude of instument location)
  • fc_wpl_le (additive WPL LE correction to c flux)
  • cvar_rot_wt (Rotated covariance wt)
  • sensible_heat_flux_spectral_correction_factor (Spectral correction factor for sensible heat flux)
  • alt (Altitude above mean sea level)
  • h2o_flux_spectral_correction_factor (Spectral correction factor for h2o flux)
  • theta (rotation to zero w)
  • qc_co2_flux (Quality check results on field: Corrected co2 flux)
  • eastward_wind_unrotated (Wind component along the u anemometer axis)
  • var_rot_w (Rotated variance w)
  • momentum_flux_uncorrected (Uncorrected momentum flux)
  • random_error_sensible_heat_flux (Random error for sensible heat flux)
  • qc_sensible_heat_flux (Quality check results on field: Corrected sensible heat flux)
  • northward_wind_spikes (Number of spikes detected and eliminated for northward wind)
  • detector_flag (Number of flagged records for detector)
  • turbulent_kinetic_energy (Turbulent kinetic energy)
  • mean_spk_c (Mean value of "spike" c samples)
  • vertical_wind_unrotated (Wind component along the w anemometer axis)
  • var_rot_v (variance of v)
  • cvar_rot_uq (Rotated covariance uq)
  • var_rot_w (variance of w)
  • cvar_rot_vt (Rotated covariance vt)
  • var_rot_u (variance of u)
  • h2o_flux_variance (Variance of h2o)
  • h2o_time_lag_state (Flag to specify whether reported h2o time lag is default or calculated)
  • time_offset (Time offset from base_time)
  • evapotranspiration_rate (Evapotranspiration rate)
  • ustar (Friction velocity)
  • co2_flux_uncorrected (Uncorrected co2 flux)
  • h2o_flux_covariance (Covariance between vertical wind and variable h2o flux)
  • chopper_flag (Number of flagged records for chopper)
  • latent_heat_flux_spectral_correction_factor (Spectral correction for latent heat flux)
  • cvar_rot_ut (Rotated covariance ut)
  • water_vapor_pressure_deficit (Ambient water vapor pressure deficit)
  • vertical_wind (Rotated w wind component)
  • mean_value_RSSI (Mean value of RSSI)
  • h (corrected sensible heat flux)
  • yyyydddhhmmss (start of integration interval)
  • mean_t (mean sonic temperature (t), i.e. virtual temperature)
  • h2o_time_lag (Time lag used to synchronize h2o time series)
  • phi (rotation to zero v)
  • time_bounds (Time cell bounds)
  • air_molar_volume (Molar volume of ambient air)
  • cvar_rot_uc (Rotated covariance uc)
  • h2o_mixing_ratio (Measured or estimated mixing ratio of h2o)
  • yaw (First rotation angle)
  • time (Time offset from midnight)
  • momentum_flux (Corrected momentum flux)
  • cvar_rot_uv (Rotated covariance uv)
  • eastward_wind_variance (Variance of eastward wind)
  • mean_c (mean CO2 density)
  • random_error_co2_flux (Random error for co2 flux)
  • site_longitude (longitude of instument location)
  • scaling_temperature_covariance (Covariance between vertical_wind and variable scaling_temperature)
  • co2_flux_covariance (Covariance between vertical wind and variable co2 flux)
  • qc_h2o_flux (Quality check results on field: Corrected h2o flux)
  • h2o_flux_spikes (Number of spikes detected and eliminated for variable h2o flux)
  • eastward_wind (Rotated u wind component (mean wind speed))
  • co2_time_lag_state (Flag to specify whether reported co2 time lag is default or calculated)
  • monin_obukov_stability_parameter (Monin-Obukov stability parameter)
  • wind_speed (Mean wind speed)
  • max_wind_speed (Maximum instantaneous wind speed)
  • lat (North latitude)
  • doy (fractional day of the year)
  • var_c (variance of c)
  • qc_momentum_flux (Quality check results on field: Corrected momentum flux)
  • cvar_rot_uw (Rotated covariance uw)
  • mean_rot_u (Rotated mean u)
  • mean_t (Mean t temperature (sonic anemometer))
  • mean_p (mean IRGA pressure)
  • mean_rot_w (Rotated mean w)
  • co2_mixing_ratio (Measured or estimated mixing ratio of co2)
  • random_error_momentum_flux (Random error for momentum flux)
  • dew_point_temperature (Ambient dew point temperature)
  • water_vapor_density (Ambient mass density of water vapor)
  • mean_q (Mean water vapor density)
  • fc_wpl_h (additive WPL H correction to c flux)
  • h2o_molar_density (Measured or estimated molar density of h2o)
  • momentum_flux_spectral_correction_factor (Spectral correction factor for momentum flux)
  • air_temperature (Mean temperature of ambient air, either calculated from high frequency air temperature readings, or estimated from sonic temperature)
  • h (Sensible heat flux)
  • co2_flux (Corrected co2 flux)
  • mean_rot_v (Rotated mean v)
  • ustar (friction velocity)
  • vertical_wind_spikes (Number of spikes detected and eliminated for upward wind)
  • skew_c (Skewness of variable mean_c)
  • co2_flux_spikes (Number of spikes detected and eliminated for variable co2 flux)
  • cvar_rot_vc (Rotated covariance vc)
  • skew_q (Skewness of variable mean_q)
  • sonic_temperature (Mean temperature of ambient air as measured by the anemometer)
  • vertical_wind_variance (Variance of vertical wind)
  • h2o_flux_uncorrected (Uncorrected h2o flux)
  • air_pressure (Mean pressure of ambient air, either calculated from high frequency air pressure readings or estimated from on site altitude (barometric pressure))
  • eastward_wind_spikes (Number of spikes detected and eliminated for eastward wind)
  • random_error_h2o_flux (Random error for h2o flux)
  • var_rot_u (Rotated variance u)
  • kurt_t (Kurtosis of variable mean_t)
  • pitch (Second rotation angle)
 
DQR ID: D150218.1    (Back to Top)
Start Date Start Time End Date End Time Data Quality Metric
2015-02-09 11:30:00 2015-02-16 07:00:00 Missing
Subject: NSA/ECOR/E10 - All Data Missing
Affected Datastreams: nsa30ecorE10.b1
Description The data is missing for this period, except for a few hours on 2/10.
Measurements
  • mean_spk_w (Mean value of "spike" w samples)
  • n_spk_q (Number of q samples removed due to spikes)
  • n_good_c (Number of valid c samples)
  • var_v (Variance of variable mean_v)
  • mean_spk_t (Mean value of "spike" t samples)
  • mean_spk_u (Mean value of "spike" u samples)
  • cvar_tc (Covariance tc)
  • var_t (Variance of variable mean_t)
  • mean_q (mean H2O density)
  • cvar_tq (Covariance tq)
  • temp_irga (Average temperature (IGRA internal sensor))
  • var_t (variance of t)
  • mean_rot_u (mean horizontal wind speed)
  • n_bad_q (Number of bad or out of range q samples)
  • cvar_uc (Covariance uc)
  • var_rot_v (Rotated variance v)
  • lon (East longitude)
  • wind_dir (Vector averaged wind direction)
  • kurt_c (Kurtosis of variable mean_c)
  • var_q (Variance of variable mean_q)
  • real_mr (Status of source for mixing ratio)
  • mean_c (Mean CO2 density)
  • cvar_rot_vw (Rotated covariance vw)
  • var_c (Variance of variable mean_c)
  • cvar_wq (Covariance wq)
  • cvar_rot_wc (Rotated covariance wc)
  • phi (Rotation to v wind component = zero)
  • skew_u (Skewness of variable mean_u)
  • cvar_rot_wq (Rotated covariance wq)
  • base_time (Base time in Epoch)
  • skew_t (Skewness of variable mean_t)
  • cp (Specific heat of moist air)
  • var_q (variance of q)
  • n_bad_t (Number of bad or out of range t samples)
  • n_bad_v (Number of bad or out of range v samples)
  • std_elev (Standard deviation of wind elevation angle)
  • mean_spk_q (Mean value of "spike" q samples)
  • n_bad_c (Number of bad or out of range c samples)
  • n_spk_c (Number of c samples removed due to spikes)
  • cvar_qc (Covariance qc)
  • fc (CO2 flux)
  • kurt_w (Kurtosis of variable mean_w)
  • cvar_uv (Covariance uv)
  • n_bad_w (Number of bad or out of range w samples)
  • cvar_rot_vq (Rotated covariance vq)
  • kurt_q (Kurtosis of variable mean_q)
  • lv (Latent heat of vaporization)
  • cvar_rot_wt (Rotated covariance wt)
  • alt (Altitude above mean sea level)
  • rho (Moist air density)
  • var_rot_w (Rotated variance w)
  • mean_spk_v (Mean value of "spike" v samples)
  • n_good_v (Number of valid v samples)
  • mean_spk_c (Mean value of "spike" c samples)
  • var_rot_w (variance of w)
  • n_bad_irga (Number of samples with "IRGA hardware problem" flag)
  • cvar_rot_uq (Rotated covariance uq)
  • cvar_rot_vt (Rotated covariance vt)
  • atm_pres (Average atmospheric pressure (IGRA internal sensor))
  • var_rot_v (variance of v)
  • var_rot_u (variance of u)
  • real_lv (Status of source for latent heat of vaporization)
  • real_cp (Status of source for specific heat of moist air)
  • real_rho (Status of source for moist air density)
  • time_offset (Time offset from base_time)
  • ustar (Friction velocity)
  • kurt_u (Kurtosis of variable mean_u)
  • cvar_rot_ut (Rotated covariance ut)
  • lv_e (Latent heat flux)
  • var_w (Variance of variable mean_w)
  • cvar_wt (Covariance wt)
  • h (corrected sensible heat flux)
  • cvar_uq (Covariance uq)
  • mean_t (mean sonic temperature (t), i.e. virtual temperature)
  • mean_w (Mean w (vertical) wind component)
  • mr (Mixing ratio)
  • cvar_vt (Covariance vt)
  • cvar_wc (Covariance wc)
  • phi (rotation to zero v)
  • cvar_rot_uc (Rotated covariance uc)
  • std_wind_dir (Standard deviation of wind direction)
  • time (Time offset from midnight)
  • cvar_rot_uv (Rotated covariance uv)
  • n_spk_v (Number of v samples removed due to spikes)
  • mean_v (Mean v wind component)
  • mean_c (mean CO2 density)
  • cvar_uw (Covariance uw)
  • skew_v (Skewness of variable mean_v)
  • n_good_t (Number of valid t samples)
  • n_spk_t (Number of t samples removed due to spikes)
  • skew_w (Skewness of variable mean_w)
  • n_spk_u (Number of u samples removed due to spikes)
  • n_good_u (Number of valid u samples)
  • elev (Vertical (elevation) wind angle)
  • lat (North latitude)
  • var_c (variance of c)
  • cvar_rot_uw (Rotated covariance uw)
  • mean_rot_u (Rotated mean u)
  • mean_t (Mean t temperature (sonic anemometer))
  • mean_rot_w (Rotated mean w)
  • wind_spd (Vector averaged wind speed)
  • cvar_vw (Covariance vw)
  • mean_q (Mean water vapor density)
  • n_spk_w (Number of w samples removed due to spikes)
  • cvar_vq (Covariance vq)
  • n_bad_irga_light (Number of samples with IRGA optical path blocked flag)
  • h (Sensible heat flux)
  • n_bad_u (Number of bad or out of range u samples)
  • var_u (Variance of variable mean_u)
  • mean_rot_v (Rotated mean v)
  • ustar (friction velocity)
  • cvar_vc (Covariance vc)
  • skew_c (Skewness of variable mean_c)
  • k (Momentum flux (dynamic))
  • mean_u (Mean u wind component)
  • cvar_rot_vc (Rotated covariance vc)
  • skew_q (Skewness of variable mean_q)
  • n_good_w (Number of valid w samples)
  • mean_cooler (Average voltage of IRGA cooler)
  • cvar_ut (Covariance ut)
  • var_rot_u (Rotated variance u)
  • kurt_t (Kurtosis of variable mean_t)
  • n_good_q (Number of valid q samples)
  • kurt_v (Kurtosis of variable mean_v)
 
DQR ID: D150331.4    (Back to Top)
Start Date Start Time End Date End Time Data Quality Metric
2015-01-27 17:30:00 2015-03-12 20:00:00 Missing
Subject: NSA/ECOR/E10 - Pressure and Temperature Measurements Missing
Affected Datastreams: nsa30ecorE10.b1
Description Pressure and temperature measurements returned after moving the IRGA serial connector to a different port of the Rocketport serial hub.
Measurements
  • temp_irga (Average temperature (IGRA internal sensor))
  • atm_pres (Average atmospheric pressure (IGRA internal sensor))
 
DQR ID: D070803.2    (Back to Top)
Start Date Start Time End Date End Time Data Quality Metric
2007-07-24 13:00:00 2007-07-26 23:59:00 Incorrect
Subject: SGP/CO2FLX/C1 - Disturbance around site
Affected Datastreams: sgp30co2flx60mC1.b1
Description A bulldozer used to excavate the SGP Tower anchors was right around (within 10 feet) our systems.
Measurements
  • mean_c (Mean CO2 density)
  • fc_corr (WPL corrected CO2 flux)
  • mean_c (mean CO2 density)
 
DQR ID: D140206.1    (Back to Top)
Start Date Start Time End Date End Time Data Quality Metric
2013-12-10 23:00:00 2014-02-05 23:30:00 Missing
Subject: NSA/ECOR/E10 - Missing data
Affected Datastreams: nsa30ecorE10.b1
Description All data except for temperature and pressure were missing because a sonic head transducer was broken/missing.
Measurements
  • mean_spk_w (Mean value of "spike" w samples)
  • n_spk_q (Number of q samples removed due to spikes)
  • n_good_c (Number of valid c samples)
  • var_v (Variance of variable mean_v)
  • mean_spk_u (Mean value of "spike" u samples)
  • mean_spk_t (Mean value of "spike" t samples)
  • cvar_tc (Covariance tc)
  • var_t (Variance of variable mean_t)
  • mean_q (mean H2O density)
  • cvar_tq (Covariance tq)
  • var_t (variance of t)
  • mean_rot_u (mean horizontal wind speed)
  • n_bad_q (Number of bad or out of range q samples)
  • cvar_uc (Covariance uc)
  • var_rot_v (Rotated variance v)
  • wind_dir (Vector averaged wind direction)
  • var_q (Variance of variable mean_q)
  • kurt_c (Kurtosis of variable mean_c)
  • cvar_rot_vw (Rotated covariance vw)
  • mean_c (Mean CO2 density)
  • real_mr (Status of source for mixing ratio)
  • var_c (Variance of variable mean_c)
  • cvar_wq (Covariance wq)
  • cvar_rot_wc (Rotated covariance wc)
  • phi (Rotation to v wind component = zero)
  • skew_u (Skewness of variable mean_u)
  • cvar_rot_wq (Rotated covariance wq)
  • skew_t (Skewness of variable mean_t)
  • cp (Specific heat of moist air)
  • var_q (variance of q)
  • mean_spk_q (Mean value of "spike" q samples)
  • std_elev (Standard deviation of wind elevation angle)
  • n_bad_c (Number of bad or out of range c samples)
  • n_bad_v (Number of bad or out of range v samples)
  • n_bad_t (Number of bad or out of range t samples)
  • n_spk_c (Number of c samples removed due to spikes)
  • cvar_qc (Covariance qc)
  • fc (CO2 flux)
  • kurt_w (Kurtosis of variable mean_w)
  • cvar_uv (Covariance uv)
  • n_bad_w (Number of bad or out of range w samples)
  • cvar_rot_vq (Rotated covariance vq)
  • kurt_q (Kurtosis of variable mean_q)
  • lv (Latent heat of vaporization)
  • cvar_rot_wt (Rotated covariance wt)
  • rho (Moist air density)
  • var_rot_w (Rotated variance w)
  • mean_spk_v (Mean value of "spike" v samples)
  • n_good_v (Number of valid v samples)
  • mean_spk_c (Mean value of "spike" c samples)
  • var_rot_w (variance of w)
  • cvar_rot_uq (Rotated covariance uq)
  • var_rot_v (variance of v)
  • n_bad_irga (Number of samples with "IRGA hardware problem" flag)
  • cvar_rot_vt (Rotated covariance vt)
  • var_rot_u (variance of u)
  • real_lv (Status of source for latent heat of vaporization)
  • real_cp (Status of source for specific heat of moist air)
  • real_rho (Status of source for moist air density)
  • ustar (Friction velocity)
  • kurt_u (Kurtosis of variable mean_u)
  • cvar_rot_ut (Rotated covariance ut)
  • lv_e (Latent heat flux)
  • var_w (Variance of variable mean_w)
  • cvar_wt (Covariance wt)
  • h (corrected sensible heat flux)
  • cvar_uq (Covariance uq)
  • mean_t (mean sonic temperature (t), i.e. virtual temperature)
  • mr (Mixing ratio)
  • mean_w (Mean w (vertical) wind component)
  • cvar_vt (Covariance vt)
  • cvar_wc (Covariance wc)
  • phi (rotation to zero v)
  • cvar_rot_uc (Rotated covariance uc)
  • std_wind_dir (Standard deviation of wind direction)
  • time (Time offset from midnight)
  • cvar_rot_uv (Rotated covariance uv)
  • n_spk_v (Number of v samples removed due to spikes)
  • mean_c (mean CO2 density)
  • mean_v (Mean v wind component)
  • cvar_uw (Covariance uw)
  • skew_v (Skewness of variable mean_v)
  • n_good_t (Number of valid t samples)
  • n_spk_t (Number of t samples removed due to spikes)
  • skew_w (Skewness of variable mean_w)
  • n_spk_u (Number of u samples removed due to spikes)
  • n_good_u (Number of valid u samples)
  • elev (Vertical (elevation) wind angle)
  • var_c (variance of c)
  • cvar_rot_uw (Rotated covariance uw)
  • mean_rot_u (Rotated mean u)
  • mean_t (Mean t temperature (sonic anemometer))
  • mean_rot_w (Rotated mean w)
  • wind_spd (Vector averaged wind speed)
  • cvar_vw (Covariance vw)
  • cvar_vq (Covariance vq)
  • n_spk_w (Number of w samples removed due to spikes)
  • mean_q (Mean water vapor density)
  • n_bad_irga_light (Number of samples with IRGA optical path blocked flag)
  • h (Sensible heat flux)
  • var_u (Variance of variable mean_u)
  • n_bad_u (Number of bad or out of range u samples)
  • mean_rot_v (Rotated mean v)
  • mean_u (Mean u wind component)
  • cvar_vc (Covariance vc)
  • ustar (friction velocity)
  • k (Momentum flux (dynamic))
  • skew_c (Skewness of variable mean_c)
  • cvar_rot_vc (Rotated covariance vc)
  • skew_q (Skewness of variable mean_q)
  • n_good_w (Number of valid w samples)
  • mean_cooler (Average voltage of IRGA cooler)
  • cvar_ut (Covariance ut)
  • var_rot_u (Rotated variance u)
  • kurt_t (Kurtosis of variable mean_t)
  • n_good_q (Number of valid q samples)
  • kurt_v (Kurtosis of variable mean_v)
 
DQR ID: D170310.16    (Back to Top)
Start Date Start Time End Date End Time Data Quality Metric
2017-03-05 00:23:01 2017-03-09 14:30:21 Note
Subject: SGP/Central Facility - Power Outage
Affected Datastreams: sgpirt25m20sC1.a0
Description Automated scripts show that these instruments were affected by a power outage at the central facility resulting in missing data. Most of the instruments came back online on March 6th but some took longer.
Measurements
  • qc_time (Quality check results on field: Time offset from midnight)
  • specific_humidity (Ambient specific humidity on a mass basis)
  • mean_spk_t (Mean value of "spike" t samples)
  • relative_humidity (Ambient relative humidity)
  • co2_molar_density (Measured or estimated molar density of co2)
  • water_vapor_partial_pressure (Ambient water vapor partial pressure)
  • qc_latent_heat_flux (Quality check results on field: Corrected latent heat flux)
  • bowen_ratio (Sensible heat flux to latent heat flux ratio)
  • sync_flag (Number of flagged records for sync)
  • northward_wind_unrotated (Wind component along the v anemometer axis)
  • cvar_tc (Covariance tc)
  • var_t (Variance of variable mean_t)
  • h2o_flux (Corrected h2o flux)
  • mean_q (mean H2O density)
  • sensible_heat_flux_uncorrected (Uncorrected sensible heat flux)
  • northward_wind (Rotated v wind component)
  • le (WPL corrected latent heat flux)
  • cvar_tq (Covariance tq)
  • var_t (variance of t)
  • mean_rot_u (mean horizontal wind speed)
  • water_vapor_partial_pressure_saturation (Ambient water vapor partial pressure at saturation)
  • var_rot_v (Rotated variance v)
  • random_error_latent_heat_flux (Random error for latent heat flux)
  • h2o_mole_fraction (Measured or estimated mole fraction of h2o)
  • co2_mole_fraction (Measured or estimated mole fraction of co2)
  • latent_heat_flux_uncorrected (Uncorrected latent heat flux)
  • zm (height of instument from tower base)
  • scaling_temperature_variance (Variance of scaling temperature)
  • co2_flux_spectral_correction_factor (Spectral correction factor for co2 flux)
  • latent_heat_flux (Corrected latent heat flux)
  • site_elevation (height of tower base from sea level)
  • lon (East longitude)
  • sensible_heat_flux (Corrected sensible heat flux)
  • sonic_temperature_spikes (Number of spikes detected and eliminated for variable sonic temperature)
  • monin_obukov_length (Monin-Obukov length)
  • var_q (Variance of variable mean_q)
  • kurt_c (Kurtosis of variable mean_c)
  • mean_c (Mean CO2 density)
  • cvar_rot_vw (Rotated covariance vw)
  • friction_velocity (Friction velocity)
  • var_c (Variance of variable mean_c)
  • cvar_rot_wc (Rotated covariance wc)
  • phi (Rotation to v wind component = zero)
  • Lmoni (Monin-Obukhov length scale)
  • co2_flux_variance (Variance of co2)
  • northward_wind_variance (Variance of northward wind)
  • pll_flag (Number of flagged records for pll)
  • cvar_rot_wq (Rotated covariance wq)
  • base_time (Base time in Epoch)
  • skew_t (Skewness of variable mean_t)
  • var_q (variance of q)
  • mean_spk_q (Mean value of "spike" q samples)
  • co2_time_lag (Time lag used to synchronize co2 time series)
  • cvar_qc (Covariance qc)
  • air_density (Density of ambient air)
  • air_heat_capacity (Specific head at constant pressure of ambient air)
  • wdir (horizontal wind direction)
  • scaling_temperature (Scaling temperature)
  • cvar_rot_vq (Rotated covariance vq)
  • kurt_q (Kurtosis of variable mean_q)
  • wind_direction (Direction from which the wind blows, with respect to Geographic or Magnetic north)
  • fc_corr (WPL corrected CO2 flux)
  • site_latitude (latitude of instument location)
  • fc_wpl_le (additive WPL LE correction to c flux)
  • cvar_rot_wt (Rotated covariance wt)
  • sensible_heat_flux_spectral_correction_factor (Spectral correction factor for sensible heat flux)
  • alt (Altitude above mean sea level)
  • h2o_flux_spectral_correction_factor (Spectral correction factor for h2o flux)
  • theta (rotation to zero w)
  • qc_co2_flux (Quality check results on field: Corrected co2 flux)
  • rho (Moist air density)
  • var_rot_w (Rotated variance w)
  • eastward_wind_unrotated (Wind component along the u anemometer axis)
  • momentum_flux_uncorrected (Uncorrected momentum flux)
  • qc_sensible_heat_flux (Quality check results on field: Corrected sensible heat flux)
  • random_error_sensible_heat_flux (Random error for sensible heat flux)
  • northward_wind_spikes (Number of spikes detected and eliminated for northward wind)
  • detector_flag (Number of flagged records for detector)
  • turbulent_kinetic_energy (Turbulent kinetic energy)
  • mean_spk_c (Mean value of "spike" c samples)
  • vertical_wind_unrotated (Wind component along the w anemometer axis)
  • var_rot_w (variance of w)
  • var_rot_v (variance of v)
  • cvar_rot_uq (Rotated covariance uq)
  • cvar_rot_vt (Rotated covariance vt)
  • var_rot_u (variance of u)
  • h2o_flux_variance (Variance of h2o)
  • h2o_time_lag_state (Flag to specify whether reported h2o time lag is default or calculated)
  • time_offset (Time offset from base_time)
  • evapotranspiration_rate (Evapotranspiration rate)
  • ustar (Friction velocity)
  • co2_flux_uncorrected (Uncorrected co2 flux)
  • h2o_flux_covariance (Covariance between vertical wind and variable h2o flux)
  • chopper_flag (Number of flagged records for chopper)
  • cvar_rot_ut (Rotated covariance ut)
  • latent_heat_flux_spectral_correction_factor (Spectral correction for latent heat flux)
  • water_vapor_pressure_deficit (Ambient water vapor pressure deficit)
  • vertical_wind (Rotated w wind component)
  • mean_value_RSSI (Mean value of RSSI)
  • h (corrected sensible heat flux)
  • yyyydddhhmmss (start of integration interval)
  • mean_t (mean sonic temperature (t), i.e. virtual temperature)
  • h2o_time_lag (Time lag used to synchronize h2o time series)
  • phi (rotation to zero v)
  • time_bounds (Time cell bounds)
  • air_molar_volume (Molar volume of ambient air)
  • cvar_rot_uc (Rotated covariance uc)
  • h2o_mixing_ratio (Measured or estimated mixing ratio of h2o)
  • yaw (First rotation angle)
  • time (Time offset from midnight)
  • momentum_flux (Corrected momentum flux)
  • cvar_rot_uv (Rotated covariance uv)
  • eastward_wind_variance (Variance of eastward wind)
  • random_error_co2_flux (Random error for co2 flux)
  • mean_c (mean CO2 density)
  • site_longitude (longitude of instument location)
  • co2_flux_covariance (Covariance between vertical wind and variable co2 flux)
  • scaling_temperature_covariance (Covariance between vertical_wind and variable scaling_temperature)
  • qc_h2o_flux (Quality check results on field: Corrected h2o flux)
  • h2o_flux_spikes (Number of spikes detected and eliminated for variable h2o flux)
  • eastward_wind (Rotated u wind component (mean wind speed))
  • co2_time_lag_state (Flag to specify whether reported co2 time lag is default or calculated)
  • monin_obukov_stability_parameter (Monin-Obukov stability parameter)
  • wind_speed (Mean wind speed)
  • max_wind_speed (Maximum instantaneous wind speed)
  • lat (North latitude)
  • doy (fractional day of the year)
  • var_c (variance of c)
  • qc_momentum_flux (Quality check results on field: Corrected momentum flux)
  • cvar_rot_uw (Rotated covariance uw)
  • mean_rot_u (Rotated mean u)
  • mean_t (Mean t temperature (sonic anemometer))
  • mean_p (mean IRGA pressure)
  • mean_rot_w (Rotated mean w)
  • water_vapor_density (Ambient mass density of water vapor)
  • random_error_momentum_flux (Random error for momentum flux)
  • dew_point_temperature (Ambient dew point temperature)
  • co2_mixing_ratio (Measured or estimated mixing ratio of co2)
  • mean_q (Mean water vapor density)
  • fc_wpl_h (additive WPL H correction to c flux)
  • h2o_molar_density (Measured or estimated molar density of h2o)
  • momentum_flux_spectral_correction_factor (Spectral correction factor for momentum flux)
  • air_temperature (Mean temperature of ambient air, either calculated from high frequency air temperature readings, or estimated from sonic temperature)
  • h (Sensible heat flux)
  • co2_flux (Corrected co2 flux)
  • mean_rot_v (Rotated mean v)
  • vertical_wind_spikes (Number of spikes detected and eliminated for upward wind)
  • ustar (friction velocity)
  • skew_c (Skewness of variable mean_c)
  • co2_flux_spikes (Number of spikes detected and eliminated for variable co2 flux)
  • cvar_rot_vc (Rotated covariance vc)
  • skew_q (Skewness of variable mean_q)
  • sonic_temperature (Mean temperature of ambient air as measured by the anemometer)
  • vertical_wind_variance (Variance of vertical wind)
  • h2o_flux_uncorrected (Uncorrected h2o flux)
  • air_pressure (Mean pressure of ambient air, either calculated from high frequency air pressure readings or estimated from on site altitude (barometric pressure))
  • eastward_wind_spikes (Number of spikes detected and eliminated for eastward wind)
  • random_error_h2o_flux (Random error for h2o flux)
  • var_rot_u (Rotated variance u)
  • kurt_t (Kurtosis of variable mean_t)
  • pitch (Second rotation angle)
 
DQR ID: D081202.1    (Back to Top)
Start Date Start Time End Date End Time Data Quality Metric
2005-05-26 00:00:00 2006-01-11 23:59:00 Note
Subject: SGP/CO2FLX/C1 - Reprocessed: Recalibration
Affected Datastreams: sgp30co2flx4mC1.b1
Description The 4m CO2 flux system was calibrated on May 25, 2005. After the calibration was performed, calibration coefficients used to measure CO2 density were not updated. This added an OFFSET to the CO2 density measurements. The data have been reprocessed to address the offset. The reprocessed data were archived in December 2008. Please retrieve the updated files for use in your analysis.
Measurements
  • mean_c (Mean CO2 density)
  • mean_c (mean CO2 density)
 
DQR ID: D140529.2    (Back to Top)
Start Date Start Time End Date End Time Data Quality Metric
2014-04-03 18:00:00 2014-05-22 15:30:00 Incorrect
Subject: MAO/ECOR/M1 - Wind Direction Too Low by About 10 Degrees.
Affected Datastreams: mao30ecorM1.b1
Description ECOR wind direction was about 10 degrees low during this period.
Measurements
  • wind_dir (Vector averaged wind direction)
 
DQR ID: D150402.3    (Back to Top)
Start Date Start Time End Date End Time Data Quality Metric
2015-01-20 08:00:00 2015-03-27 22:00:00 Missing
Subject: MAO/ECOR/M1 - Missing Data
Affected Datastreams: mao30ecorM1.b1
Description All data missing for the stated period.
Measurements
  • mean_spk_w (Mean value of "spike" w samples)
  • n_spk_q (Number of q samples removed due to spikes)
  • n_good_c (Number of valid c samples)
  • var_v (Variance of variable mean_v)
  • mean_spk_t (Mean value of "spike" t samples)
  • mean_spk_u (Mean value of "spike" u samples)
  • cvar_tc (Covariance tc)
  • var_t (Variance of variable mean_t)
  • mean_q (mean H2O density)
  • cvar_tq (Covariance tq)
  • temp_irga (Average temperature (IGRA internal sensor))
  • var_t (variance of t)
  • mean_rot_u (mean horizontal wind speed)
  • n_bad_q (Number of bad or out of range q samples)
  • cvar_uc (Covariance uc)
  • var_rot_v (Rotated variance v)
  • lon (East longitude)
  • wind_dir (Vector averaged wind direction)
  • kurt_c (Kurtosis of variable mean_c)
  • var_q (Variance of variable mean_q)
  • mean_c (Mean CO2 density)
  • cvar_rot_vw (Rotated covariance vw)
  • real_mr (Status of source for mixing ratio)
  • var_c (Variance of variable mean_c)
  • cvar_wq (Covariance wq)
  • cvar_rot_wc (Rotated covariance wc)
  • phi (Rotation to v wind component = zero)
  • skew_u (Skewness of variable mean_u)
  • cvar_rot_wq (Rotated covariance wq)
  • base_time (Base time in Epoch)
  • skew_t (Skewness of variable mean_t)
  • cp (Specific heat of moist air)
  • var_q (variance of q)
  • n_bad_t (Number of bad or out of range t samples)
  • n_bad_v (Number of bad or out of range v samples)
  • mean_spk_q (Mean value of "spike" q samples)
  • std_elev (Standard deviation of wind elevation angle)
  • n_bad_c (Number of bad or out of range c samples)
  • n_spk_c (Number of c samples removed due to spikes)
  • cvar_qc (Covariance qc)
  • fc (CO2 flux)
  • kurt_w (Kurtosis of variable mean_w)
  • cvar_uv (Covariance uv)
  • n_bad_w (Number of bad or out of range w samples)
  • cvar_rot_vq (Rotated covariance vq)
  • kurt_q (Kurtosis of variable mean_q)
  • lv (Latent heat of vaporization)
  • cvar_rot_wt (Rotated covariance wt)
  • alt (Altitude above mean sea level)
  • rho (Moist air density)
  • var_rot_w (Rotated variance w)
  • mean_spk_v (Mean value of "spike" v samples)
  • n_good_v (Number of valid v samples)
  • mean_spk_c (Mean value of "spike" c samples)
  • var_rot_w (variance of w)
  • cvar_rot_uq (Rotated covariance uq)
  • var_rot_v (variance of v)
  • n_bad_irga (Number of samples with "IRGA hardware problem" flag)
  • cvar_rot_vt (Rotated covariance vt)
  • atm_pres (Average atmospheric pressure (IGRA internal sensor))
  • var_rot_u (variance of u)
  • real_lv (Status of source for latent heat of vaporization)
  • real_cp (Status of source for specific heat of moist air)
  • real_rho (Status of source for moist air density)
  • time_offset (Time offset from base_time)
  • ustar (Friction velocity)
  • kurt_u (Kurtosis of variable mean_u)
  • cvar_rot_ut (Rotated covariance ut)
  • lv_e (Latent heat flux)
  • var_w (Variance of variable mean_w)
  • cvar_wt (Covariance wt)
  • h (corrected sensible heat flux)
  • cvar_uq (Covariance uq)
  • mean_t (mean sonic temperature (t), i.e. virtual temperature)
  • mean_w (Mean w (vertical) wind component)
  • mr (Mixing ratio)
  • cvar_vt (Covariance vt)
  • cvar_wc (Covariance wc)
  • phi (rotation to zero v)
  • cvar_rot_uc (Rotated covariance uc)
  • std_wind_dir (Standard deviation of wind direction)
  • time (Time offset from midnight)
  • cvar_rot_uv (Rotated covariance uv)
  • n_spk_v (Number of v samples removed due to spikes)
  • mean_v (Mean v wind component)
  • mean_c (mean CO2 density)
  • cvar_uw (Covariance uw)
  • skew_v (Skewness of variable mean_v)
  • n_good_t (Number of valid t samples)
  • n_spk_t (Number of t samples removed due to spikes)
  • n_spk_u (Number of u samples removed due to spikes)
  • skew_w (Skewness of variable mean_w)
  • n_good_u (Number of valid u samples)
  • elev (Vertical (elevation) wind angle)
  • lat (North latitude)
  • var_c (variance of c)
  • cvar_rot_uw (Rotated covariance uw)
  • mean_rot_u (Rotated mean u)
  • mean_t (Mean t temperature (sonic anemometer))
  • mean_rot_w (Rotated mean w)
  • wind_spd (Vector averaged wind speed)
  • cvar_vw (Covariance vw)
  • mean_q (Mean water vapor density)
  • n_spk_w (Number of w samples removed due to spikes)
  • cvar_vq (Covariance vq)
  • n_bad_irga_light (Number of samples with IRGA optical path blocked flag)
  • h (Sensible heat flux)
  • n_bad_u (Number of bad or out of range u samples)
  • var_u (Variance of variable mean_u)
  • mean_rot_v (Rotated mean v)
  • ustar (friction velocity)
  • cvar_vc (Covariance vc)
  • skew_c (Skewness of variable mean_c)
  • mean_u (Mean u wind component)
  • k (Momentum flux (dynamic))
  • cvar_rot_vc (Rotated covariance vc)
  • skew_q (Skewness of variable mean_q)
  • n_good_w (Number of valid w samples)
  • mean_cooler (Average voltage of IRGA cooler)
  • cvar_ut (Covariance ut)
  • var_rot_u (Rotated variance u)
  • kurt_t (Kurtosis of variable mean_t)
  • n_good_q (Number of valid q samples)
  • kurt_v (Kurtosis of variable mean_v)
 
DQR ID: D060107.1    (Back to Top)
Start Date Start Time End Date End Time Data Quality Metric
2005-05-27 00:00:00 2006-01-06 23:59:00 Suspect
Subject: SGP/CO2FLX/C1 - Reprocess: calibration error
Affected Datastreams: sgp30co2flx4mC1.b1
Description A problem was identified with the calibration of the instrument performed on May 27, 2005. A study to correct this bad calibration is underway.
Measurements
  • le (WPL corrected latent heat flux)
  • fc_corr (WPL corrected CO2 flux)
  • mean_q (mean H2O density)
  • mean_q (Mean water vapor density)
 
DQR ID: D140529.1    (Back to Top)
Start Date Start Time End Date End Time Data Quality Metric
2014-04-03 18:00:00 2014-05-21 14:00:00 Incorrect
Subject: MAO/ECOR/M1 - CO2/H2O Means, CO2 flux, and Latent Heat Flux Incorrect
Affected Datastreams: mao30ecorM1.b1
Description All CO2 and water vapor means, CO2 flux, and latent heat flux are incorrect for the period.
Measurements
  • n_spk_q (Number of q samples removed due to spikes)
  • n_good_c (Number of valid c samples)
  • cvar_rot_wq (Rotated covariance wq)
  • real_lv (Status of source for latent heat of vaporization)
  • real_cp (Status of source for specific heat of moist air)
  • cp (Specific heat of moist air)
  • var_q (variance of q)
  • mean_spk_q (Mean value of "spike" q samples)
  • n_bad_c (Number of bad or out of range c samples)
  • var_c (variance of c)
  • n_spk_c (Number of c samples removed due to spikes)
  • cvar_tc (Covariance tc)
  • cvar_qc (Covariance qc)
  • fc (CO2 flux)
  • mean_q (mean H2O density)
  • cvar_tq (Covariance tq)
  • temp_irga (Average temperature (IGRA internal sensor))
  • lv_e (Latent heat flux)
  • n_bad_q (Number of bad or out of range q samples)
  • cvar_vq (Covariance vq)
  • mean_q (Mean water vapor density)
  • cvar_uq (Covariance uq)
  • cvar_uc (Covariance uc)
  • cvar_rot_vq (Rotated covariance vq)
  • cvar_wc (Covariance wc)
  • kurt_q (Kurtosis of variable mean_q)
  • lv (Latent heat of vaporization)
  • cvar_vc (Covariance vc)
  • skew_c (Skewness of variable mean_c)
  • cvar_rot_uc (Rotated covariance uc)
  • mean_c (mean CO2 density)
  • cvar_rot_vc (Rotated covariance vc)
  • skew_q (Skewness of variable mean_q)
  • var_q (Variance of variable mean_q)
  • kurt_c (Kurtosis of variable mean_c)
  • mean_c (Mean CO2 density)
  • var_c (Variance of variable mean_c)
  • cvar_wq (Covariance wq)
  • cvar_rot_wc (Rotated covariance wc)
  • mean_spk_c (Mean value of "spike" c samples)
  • cvar_rot_uq (Rotated covariance uq)
  • atm_pres (Average atmospheric pressure (IGRA internal sensor))
  • n_good_q (Number of valid q samples)
 
DQR ID: D140905.1    (Back to Top)
Start Date Start Time End Date End Time Data Quality Metric
2014-08-27 12:00:00 2014-08-28 20:30:00 Missing
Subject: MAO/ECOR/M1 - Data Missing
Affected Datastreams: mao30ecorM1.b1
Description All data was missing during then stated period.
Measurements
  • mean_spk_w (Mean value of "spike" w samples)
  • n_spk_q (Number of q samples removed due to spikes)
  • n_good_c (Number of valid c samples)
  • var_v (Variance of variable mean_v)
  • mean_spk_t (Mean value of "spike" t samples)
  • mean_spk_u (Mean value of "spike" u samples)
  • cvar_tc (Covariance tc)
  • var_t (Variance of variable mean_t)
  • mean_q (mean H2O density)
  • cvar_tq (Covariance tq)
  • temp_irga (Average temperature (IGRA internal sensor))
  • var_t (variance of t)
  • mean_rot_u (mean horizontal wind speed)
  • n_bad_q (Number of bad or out of range q samples)
  • cvar_uc (Covariance uc)
  • var_rot_v (Rotated variance v)
  • lon (East longitude)
  • wind_dir (Vector averaged wind direction)
  • kurt_c (Kurtosis of variable mean_c)
  • var_q (Variance of variable mean_q)
  • real_mr (Status of source for mixing ratio)
  • cvar_rot_vw (Rotated covariance vw)
  • mean_c (Mean CO2 density)
  • var_c (Variance of variable mean_c)
  • cvar_wq (Covariance wq)
  • cvar_rot_wc (Rotated covariance wc)
  • phi (Rotation to v wind component = zero)
  • skew_u (Skewness of variable mean_u)
  • cvar_rot_wq (Rotated covariance wq)
  • base_time (Base time in Epoch)
  • skew_t (Skewness of variable mean_t)
  • cp (Specific heat of moist air)
  • var_q (variance of q)
  • n_bad_t (Number of bad or out of range t samples)
  • n_bad_v (Number of bad or out of range v samples)
  • n_bad_c (Number of bad or out of range c samples)
  • std_elev (Standard deviation of wind elevation angle)
  • mean_spk_q (Mean value of "spike" q samples)
  • n_spk_c (Number of c samples removed due to spikes)
  • cvar_qc (Covariance qc)
  • fc (CO2 flux)
  • kurt_w (Kurtosis of variable mean_w)
  • cvar_uv (Covariance uv)
  • n_bad_w (Number of bad or out of range w samples)
  • cvar_rot_vq (Rotated covariance vq)
  • kurt_q (Kurtosis of variable mean_q)
  • lv (Latent heat of vaporization)
  • cvar_rot_wt (Rotated covariance wt)
  • alt (Altitude above mean sea level)
  • rho (Moist air density)
  • var_rot_w (Rotated variance w)
  • mean_spk_v (Mean value of "spike" v samples)
  • n_good_v (Number of valid v samples)
  • mean_spk_c (Mean value of "spike" c samples)
  • var_rot_v (variance of v)
  • n_bad_irga (Number of samples with "IRGA hardware problem" flag)
  • var_rot_w (variance of w)
  • cvar_rot_uq (Rotated covariance uq)
  • cvar_rot_vt (Rotated covariance vt)
  • atm_pres (Average atmospheric pressure (IGRA internal sensor))
  • var_rot_u (variance of u)
  • real_lv (Status of source for latent heat of vaporization)
  • real_cp (Status of source for specific heat of moist air)
  • real_rho (Status of source for moist air density)
  • time_offset (Time offset from base_time)
  • ustar (Friction velocity)
  • kurt_u (Kurtosis of variable mean_u)
  • cvar_rot_ut (Rotated covariance ut)
  • lv_e (Latent heat flux)
  • var_w (Variance of variable mean_w)
  • cvar_wt (Covariance wt)
  • h (corrected sensible heat flux)
  • mean_t (mean sonic temperature (t), i.e. virtual temperature)
  • cvar_uq (Covariance uq)
  • mean_w (Mean w (vertical) wind component)
  • mr (Mixing ratio)
  • cvar_vt (Covariance vt)
  • cvar_wc (Covariance wc)
  • phi (rotation to zero v)
  • cvar_rot_uc (Rotated covariance uc)
  • std_wind_dir (Standard deviation of wind direction)
  • time (Time offset from midnight)
  • cvar_rot_uv (Rotated covariance uv)
  • n_spk_v (Number of v samples removed due to spikes)
  • mean_c (mean CO2 density)
  • mean_v (Mean v wind component)
  • cvar_uw (Covariance uw)
  • skew_v (Skewness of variable mean_v)
  • n_good_t (Number of valid t samples)
  • n_spk_t (Number of t samples removed due to spikes)
  • skew_w (Skewness of variable mean_w)
  • n_spk_u (Number of u samples removed due to spikes)
  • n_good_u (Number of valid u samples)
  • elev (Vertical (elevation) wind angle)
  • lat (North latitude)
  • var_c (variance of c)
  • cvar_rot_uw (Rotated covariance uw)
  • mean_rot_u (Rotated mean u)
  • mean_t (Mean t temperature (sonic anemometer))
  • mean_rot_w (Rotated mean w)
  • wind_spd (Vector averaged wind speed)
  • cvar_vw (Covariance vw)
  • mean_q (Mean water vapor density)
  • n_spk_w (Number of w samples removed due to spikes)
  • cvar_vq (Covariance vq)
  • n_bad_irga_light (Number of samples with IRGA optical path blocked flag)
  • h (Sensible heat flux)
  • var_u (Variance of variable mean_u)
  • n_bad_u (Number of bad or out of range u samples)
  • mean_rot_v (Rotated mean v)
  • ustar (friction velocity)
  • cvar_vc (Covariance vc)
  • skew_c (Skewness of variable mean_c)
  • k (Momentum flux (dynamic))
  • mean_u (Mean u wind component)
  • cvar_rot_vc (Rotated covariance vc)
  • skew_q (Skewness of variable mean_q)
  • n_good_w (Number of valid w samples)
  • mean_cooler (Average voltage of IRGA cooler)
  • cvar_ut (Covariance ut)
  • var_rot_u (Rotated variance u)
  • kurt_t (Kurtosis of variable mean_t)
  • n_good_q (Number of valid q samples)
  • kurt_v (Kurtosis of variable mean_v)
 
DQR ID: D130110.2    (Back to Top)
Start Date Start Time End Date End Time Data Quality Metric
2012-12-22 22:00:00 2013-01-03 16:00:00 Missing
Subject: NSA/ECOR/E10 - Missing data
Affected Datastreams: nsa30ecorE10.b1
Description Data are missing and unrecoverable.
Measurements
  • mean_spk_w (Mean value of "spike" w samples)
  • n_spk_q (Number of q samples removed due to spikes)
  • n_good_c (Number of valid c samples)
  • var_v (Variance of variable mean_v)
  • mean_spk_u (Mean value of "spike" u samples)
  • mean_spk_t (Mean value of "spike" t samples)
  • cvar_tc (Covariance tc)
  • var_t (Variance of variable mean_t)
  • mean_q (mean H2O density)
  • cvar_tq (Covariance tq)
  • temp_irga (Average temperature (IGRA internal sensor))
  • var_t (variance of t)
  • mean_rot_u (mean horizontal wind speed)
  • n_bad_q (Number of bad or out of range q samples)
  • cvar_uc (Covariance uc)
  • var_rot_v (Rotated variance v)
  • lon (East longitude)
  • wind_dir (Vector averaged wind direction)
  • var_q (Variance of variable mean_q)
  • kurt_c (Kurtosis of variable mean_c)
  • mean_c (Mean CO2 density)
  • cvar_rot_vw (Rotated covariance vw)
  • real_mr (Status of source for mixing ratio)
  • var_c (Variance of variable mean_c)
  • cvar_wq (Covariance wq)
  • cvar_rot_wc (Rotated covariance wc)
  • phi (Rotation to v wind component = zero)
  • skew_u (Skewness of variable mean_u)
  • cvar_rot_wq (Rotated covariance wq)
  • base_time (Base time in Epoch)
  • skew_t (Skewness of variable mean_t)
  • cp (Specific heat of moist air)
  • var_q (variance of q)
  • mean_spk_q (Mean value of "spike" q samples)
  • n_bad_c (Number of bad or out of range c samples)
  • std_elev (Standard deviation of wind elevation angle)
  • n_bad_v (Number of bad or out of range v samples)
  • n_bad_t (Number of bad or out of range t samples)
  • n_spk_c (Number of c samples removed due to spikes)
  • cvar_qc (Covariance qc)
  • fc (CO2 flux)
  • kurt_w (Kurtosis of variable mean_w)
  • cvar_uv (Covariance uv)
  • n_bad_w (Number of bad or out of range w samples)
  • cvar_rot_vq (Rotated covariance vq)
  • kurt_q (Kurtosis of variable mean_q)
  • lv (Latent heat of vaporization)
  • cvar_rot_wt (Rotated covariance wt)
  • alt (Altitude above mean sea level)
  • rho (Moist air density)
  • var_rot_w (Rotated variance w)
  • mean_spk_v (Mean value of "spike" v samples)
  • n_good_v (Number of valid v samples)
  • mean_spk_c (Mean value of "spike" c samples)
  • var_rot_v (variance of v)
  • var_rot_w (variance of w)
  • cvar_rot_uq (Rotated covariance uq)
  • n_bad_irga (Number of samples with "IRGA hardware problem" flag)
  • cvar_rot_vt (Rotated covariance vt)
  • atm_pres (Average atmospheric pressure (IGRA internal sensor))
  • var_rot_u (variance of u)
  • real_lv (Status of source for latent heat of vaporization)
  • real_cp (Status of source for specific heat of moist air)
  • real_rho (Status of source for moist air density)
  • time_offset (Time offset from base_time)
  • ustar (Friction velocity)
  • kurt_u (Kurtosis of variable mean_u)
  • cvar_rot_ut (Rotated covariance ut)
  • lv_e (Latent heat flux)
  • var_w (Variance of variable mean_w)
  • cvar_wt (Covariance wt)
  • h (corrected sensible heat flux)
  • cvar_uq (Covariance uq)
  • mean_t (mean sonic temperature (t), i.e. virtual temperature)
  • mr (Mixing ratio)
  • mean_w (Mean w (vertical) wind component)
  • cvar_vt (Covariance vt)
  • cvar_wc (Covariance wc)
  • phi (rotation to zero v)
  • cvar_rot_uc (Rotated covariance uc)
  • std_wind_dir (Standard deviation of wind direction)
  • time (Time offset from midnight)
  • cvar_rot_uv (Rotated covariance uv)
  • n_spk_v (Number of v samples removed due to spikes)
  • mean_v (Mean v wind component)
  • mean_c (mean CO2 density)
  • cvar_uw (Covariance uw)
  • skew_v (Skewness of variable mean_v)
  • n_good_t (Number of valid t samples)
  • n_spk_t (Number of t samples removed due to spikes)
  • skew_w (Skewness of variable mean_w)
  • n_spk_u (Number of u samples removed due to spikes)
  • n_good_u (Number of valid u samples)
  • elev (Vertical (elevation) wind angle)
  • lat (North latitude)
  • var_c (variance of c)
  • cvar_rot_uw (Rotated covariance uw)
  • mean_rot_u (Rotated mean u)
  • mean_t (Mean t temperature (sonic anemometer))
  • mean_rot_w (Rotated mean w)
  • wind_spd (Vector averaged wind speed)
  • cvar_vw (Covariance vw)
  • cvar_vq (Covariance vq)
  • n_spk_w (Number of w samples removed due to spikes)
  • mean_q (Mean water vapor density)
  • n_bad_irga_light (Number of samples with IRGA optical path blocked flag)
  • h (Sensible heat flux)
  • n_bad_u (Number of bad or out of range u samples)
  • var_u (Variance of variable mean_u)
  • mean_rot_v (Rotated mean v)
  • mean_u (Mean u wind component)
  • cvar_vc (Covariance vc)
  • skew_c (Skewness of variable mean_c)
  • k (Momentum flux (dynamic))
  • ustar (friction velocity)
  • cvar_rot_vc (Rotated covariance vc)
  • skew_q (Skewness of variable mean_q)
  • n_good_w (Number of valid w samples)
  • mean_cooler (Average voltage of IRGA cooler)
  • cvar_ut (Covariance ut)
  • var_rot_u (Rotated variance u)
  • kurt_t (Kurtosis of variable mean_t)
  • n_good_q (Number of valid q samples)
  • kurt_v (Kurtosis of variable mean_v)
 
DQR ID: D161017.4    (Back to Top)
Start Date Start Time End Date End Time Data Quality Metric
2016-08-27 00:00:00 2016-10-12 07:00:00 Suspect
Subject: NSA/ECOR/E10 - Sonic Temperature Fluctuations
Affected Datastreams: nsa30ecorE10.b1
Description Sonic temperature fluctuated at times. The fluctuations occurred slowly, so as to not affect the calculation of sensible heat flux.
Measurements
  • mean_t (mean sonic temperature (t), i.e. virtual temperature)
  • mean_t (Mean t temperature (sonic anemometer))
 
DQR ID: D071011.2    (Back to Top)
Start Date Start Time End Date End Time Data Quality Metric
2003-12-17 00:00:00 2007-10-11 00:00:00 Note
Subject: SGP/CO2FLX/C1 - Reprocessing Notice (RID 432)
Affected Datastreams: sgp30co2flx4mC1.b1
Description See below for details of reprocessing that was completed on 20141217. Original DQR category: 5 (Transparent - Does not affect quality). ----------------------------------------------------------- The height of the 4m instruments is 4.8 m and not 4.65 m as shown in b1 datastream
Measurements
  • zm (height of instument from tower base)
 
DQR ID: D041026.1    (Back to Top)
Start Date Start Time End Date End Time Data Quality Metric
2002-12-18 00:00:00 2004-10-12 23:59:00 Note
Subject: SGP/CO2FLX/C1 - Reprocess: Units
Affected Datastreams: sgp30co2flx60mC1.b1
Description Mean CO2 density units are incorrectly labeled as umol m-3. Units should be labeled as mmol m-3.
Measurements
  • mean_c (Mean CO2 density)
  • mean_c (mean CO2 density)
 
DQR ID: D130411.2    (Back to Top)
Start Date Start Time End Date End Time Data Quality Metric
2012-11-20 01:00:00 2012-12-22 21:30:00 Incorrect
Subject: NSA/ECOR/E10 - H2O fluxes missing
Affected Datastreams: nsa30ecorE10.b1
Description H2O fluxes were missing because of sea salt and frost on the sensor head windows.
Measurements
  • var_q (Variance of variable mean_q)
  • kurt_q (Kurtosis of variable mean_q)
  • mean_q (mean H2O density)
  • cvar_rot_wq (Rotated covariance wq)
  • cvar_tq (Covariance tq)
  • lv_e (Latent heat flux)
  • var_q (variance of q)
  • cvar_wq (Covariance wq)
  • cvar_vq (Covariance vq)
  • mean_q (Mean water vapor density)
  • cvar_rot_uq (Rotated covariance uq)
  • cvar_uq (Covariance uq)
  • cvar_rot_vq (Rotated covariance vq)
  • cvar_qc (Covariance qc)
 
DQR ID: D170220.3    (Back to Top)
Start Date Start Time End Date End Time Data Quality Metric
2017-01-14 00:00:00 2017-01-14 23:59:00 Missing
Subject: SGP/CO2FLX/C1 - Incorrect raw file header
Affected Datastreams: sgp30co2flx25mC1.a1
Description An ingest failure caused by a change in the header of the instrument output file generated by EddyPro resulted in missing data. This is a result of a bug in the EddyPro software. This only occurs when the all sensor (e.g., gas analyzer) data is screened/flagged for the first averaging period of the processing run. This should be a rare occurrence.
Measurements
  • specific_humidity (Ambient specific humidity on a mass basis)
  • mean_spk_t (Mean value of "spike" t samples)
  • relative_humidity (Ambient relative humidity)
  • co2_molar_density (Measured or estimated molar density of co2)
  • bowen_ratio (Sensible heat flux to latent heat flux ratio)
  • qc_latent_heat_flux (Quality check results on field: Corrected latent heat flux)
  • water_vapor_partial_pressure (Ambient water vapor partial pressure)
  • sync_flag (Number of flagged records for sync)
  • northward_wind_unrotated (Wind component along the v anemometer axis)
  • cvar_tc (Covariance tc)
  • var_t (Variance of variable mean_t)
  • h2o_flux (Corrected h2o flux)
  • sensible_heat_flux_uncorrected (Uncorrected sensible heat flux)
  • mean_q (mean H2O density)
  • northward_wind (Rotated v wind component)
  • cvar_tq (Covariance tq)
  • le (WPL corrected latent heat flux)
  • var_t (variance of t)
  • mean_rot_u (mean horizontal wind speed)
  • water_vapor_partial_pressure_saturation (Ambient water vapor partial pressure at saturation)
  • var_rot_v (Rotated variance v)
  • h2o_mole_fraction (Measured or estimated mole fraction of h2o)
  • random_error_latent_heat_flux (Random error for latent heat flux)
  • co2_mole_fraction (Measured or estimated mole fraction of co2)
  • latent_heat_flux_uncorrected (Uncorrected latent heat flux)
  • zm (height of instument from tower base)
  • scaling_temperature_variance (Variance of scaling temperature)
  • co2_flux_spectral_correction_factor (Spectral correction factor for co2 flux)
  • latent_heat_flux (Corrected latent heat flux)
  • site_elevation (height of tower base from sea level)
  • lon (East longitude)
  • sensible_heat_flux (Corrected sensible heat flux)
  • sonic_temperature_spikes (Number of spikes detected and eliminated for variable sonic temperature)
  • monin_obukov_length (Monin-Obukov length)
  • var_q (Variance of variable mean_q)
  • kurt_c (Kurtosis of variable mean_c)
  • mean_c (Mean CO2 density)
  • cvar_rot_vw (Rotated covariance vw)
  • var_c (Variance of variable mean_c)
  • friction_velocity (Friction velocity)
  • cvar_rot_wc (Rotated covariance wc)
  • Lmoni (Monin-Obukhov length scale)
  • phi (Rotation to v wind component = zero)
  • co2_flux_variance (Variance of co2)
  • northward_wind_variance (Variance of northward wind)
  • pll_flag (Number of flagged records for pll)
  • cvar_rot_wq (Rotated covariance wq)
  • base_time (Base time in Epoch)
  • skew_t (Skewness of variable mean_t)
  • var_q (variance of q)
  • mean_spk_q (Mean value of "spike" q samples)
  • co2_time_lag (Time lag used to synchronize co2 time series)
  • cvar_qc (Covariance qc)
  • air_density (Density of ambient air)
  • air_heat_capacity (Specific head at constant pressure of ambient air)
  • wdir (horizontal wind direction)
  • scaling_temperature (Scaling temperature)
  • cvar_rot_vq (Rotated covariance vq)
  • kurt_q (Kurtosis of variable mean_q)
  • wind_direction (Direction from which the wind blows, with respect to Geographic or Magnetic north)
  • fc_corr (WPL corrected CO2 flux)
  • site_latitude (latitude of instument location)
  • fc_wpl_le (additive WPL LE correction to c flux)
  • cvar_rot_wt (Rotated covariance wt)
  • sensible_heat_flux_spectral_correction_factor (Spectral correction factor for sensible heat flux)
  • alt (Altitude above mean sea level)
  • h2o_flux_spectral_correction_factor (Spectral correction factor for h2o flux)
  • theta (rotation to zero w)
  • qc_co2_flux (Quality check results on field: Corrected co2 flux)
  • eastward_wind_unrotated (Wind component along the u anemometer axis)
  • var_rot_w (Rotated variance w)
  • momentum_flux_uncorrected (Uncorrected momentum flux)
  • random_error_sensible_heat_flux (Random error for sensible heat flux)
  • qc_sensible_heat_flux (Quality check results on field: Corrected sensible heat flux)
  • northward_wind_spikes (Number of spikes detected and eliminated for northward wind)
  • detector_flag (Number of flagged records for detector)
  • turbulent_kinetic_energy (Turbulent kinetic energy)
  • mean_spk_c (Mean value of "spike" c samples)
  • vertical_wind_unrotated (Wind component along the w anemometer axis)
  • var_rot_v (variance of v)
  • var_rot_w (variance of w)
  • cvar_rot_uq (Rotated covariance uq)
  • cvar_rot_vt (Rotated covariance vt)
  • var_rot_u (variance of u)
  • h2o_flux_variance (Variance of h2o)
  • h2o_time_lag_state (Flag to specify whether reported h2o time lag is default or calculated)
  • time_offset (Time offset from base_time)
  • evapotranspiration_rate (Evapotranspiration rate)
  • ustar (Friction velocity)
  • co2_flux_uncorrected (Uncorrected co2 flux)
  • h2o_flux_covariance (Covariance between vertical wind and variable h2o flux)
  • chopper_flag (Number of flagged records for chopper)
  • cvar_rot_ut (Rotated covariance ut)
  • latent_heat_flux_spectral_correction_factor (Spectral correction for latent heat flux)
  • water_vapor_pressure_deficit (Ambient water vapor pressure deficit)
  • vertical_wind (Rotated w wind component)
  • mean_value_RSSI (Mean value of RSSI)
  • h (corrected sensible heat flux)
  • mean_t (mean sonic temperature (t), i.e. virtual temperature)
  • yyyydddhhmmss (start of integration interval)
  • h2o_time_lag (Time lag used to synchronize h2o time series)
  • phi (rotation to zero v)
  • time_bounds (Time cell bounds)
  • air_molar_volume (Molar volume of ambient air)
  • cvar_rot_uc (Rotated covariance uc)
  • h2o_mixing_ratio (Measured or estimated mixing ratio of h2o)
  • yaw (First rotation angle)
  • time (Time offset from midnight)
  • momentum_flux (Corrected momentum flux)
  • cvar_rot_uv (Rotated covariance uv)
  • eastward_wind_variance (Variance of eastward wind)
  • random_error_co2_flux (Random error for co2 flux)
  • mean_c (mean CO2 density)
  • site_longitude (longitude of instument location)
  • co2_flux_covariance (Covariance between vertical wind and variable co2 flux)
  • scaling_temperature_covariance (Covariance between vertical_wind and variable scaling_temperature)
  • qc_h2o_flux (Quality check results on field: Corrected h2o flux)
  • h2o_flux_spikes (Number of spikes detected and eliminated for variable h2o flux)
  • eastward_wind (Rotated u wind component (mean wind speed))
  • co2_time_lag_state (Flag to specify whether reported co2 time lag is default or calculated)
  • monin_obukov_stability_parameter (Monin-Obukov stability parameter)
  • wind_speed (Mean wind speed)
  • doy (fractional day of the year)
  • lat (North latitude)
  • max_wind_speed (Maximum instantaneous wind speed)
  • var_c (variance of c)
  • qc_momentum_flux (Quality check results on field: Corrected momentum flux)
  • cvar_rot_uw (Rotated covariance uw)
  • mean_rot_u (Rotated mean u)
  • mean_t (Mean t temperature (sonic anemometer))
  • mean_rot_w (Rotated mean w)
  • mean_p (mean IRGA pressure)
  • co2_mixing_ratio (Measured or estimated mixing ratio of co2)
  • random_error_momentum_flux (Random error for momentum flux)
  • dew_point_temperature (Ambient dew point temperature)
  • water_vapor_density (Ambient mass density of water vapor)
  • mean_q (Mean water vapor density)
  • fc_wpl_h (additive WPL H correction to c flux)
  • h2o_molar_density (Measured or estimated molar density of h2o)
  • momentum_flux_spectral_correction_factor (Spectral correction factor for momentum flux)
  • air_temperature (Mean temperature of ambient air, either calculated from high frequency air temperature readings, or estimated from sonic temperature)
  • h (Sensible heat flux)
  • co2_flux (Corrected co2 flux)
  • mean_rot_v (Rotated mean v)
  • ustar (friction velocity)
  • vertical_wind_spikes (Number of spikes detected and eliminated for upward wind)
  • skew_c (Skewness of variable mean_c)
  • co2_flux_spikes (Number of spikes detected and eliminated for variable co2 flux)
  • cvar_rot_vc (Rotated covariance vc)
  • skew_q (Skewness of variable mean_q)
  • sonic_temperature (Mean temperature of ambient air as measured by the anemometer)
  • vertical_wind_variance (Variance of vertical wind)
  • h2o_flux_uncorrected (Uncorrected h2o flux)
  • air_pressure (Mean pressure of ambient air, either calculated from high frequency air pressure readings or estimated from on site altitude (barometric pressure))
  • eastward_wind_spikes (Number of spikes detected and eliminated for eastward wind)
  • random_error_h2o_flux (Random error for h2o flux)
  • var_rot_u (Rotated variance u)
  • kurt_t (Kurtosis of variable mean_t)
  • pitch (Second rotation angle)