SGP/SIRS/E13 - Missing data due to Ice storm and clock problems

Data are missing due to power failures caused by an ice storm
and resulting system/instrument clock problems.

• Downwelling Longwave Hemispheric Irradiance, Shaded Pyrgeometer, Maxima(down_long_hemisp_shaded_max)
• Downwelling Shortwave Hemispheric Irradiance, Ventilated Pyrgeometer, Maxima(down_short_hemisp_max)
• Upwelling Longwave Hemispheric Net Infrared(up_long_netir)
• Instantaneous Downwelling Pyrgeometer Case Thermistor Temperature, Shaded
  Pyrgeometer(inst_down_long_shaded_case_temp)
• Downwelling Longwave Hemispheric Net Infrared(down_long_netir)
• Upwelling (10 meter) Longwave Hemispheric Irradiance, Ventilated Pyrgeometer(up_long_hemisp)
• Instantaneous Upwelling Pyrgeometer Dome Thermistor Temperature, Pyrgeometer(inst_up_long_dome_temp)
• Upwelling (10 meter) Shortwave Hemispheric Irradiance, Ventilated Pyranometer(up_short_hemisp)
• Downwelling Longwave Hemispheric Irradiance, Shaded Pyrgeometer, Minima(down_long_hemisp_shaded_min)
• Downwelling Shortwave Diffuse Hemispheric Irradiance, Ventilated Pyranometer(down_short_diffuse_hemisp)
• Battery voltage(vBatt)
• Time offset from base_time(base_time)
• Time offset of tweaks from base_time(time_offset)
• Downwelling Shortwave Hemispheric Irradiance, Ventilated Pyrgeometer, Minima(down_short_hemisp_min)
• Upwelling (10 meter) Longwave Hemispheric Irradiance, Ventilated Pyrgeometer,
  Maxima(up_long_hemisp_max)
• Downwelling Shortwave Hemispheric Irradiance, Ventilated Pyrgeometer(down_short_hemisp)
• Instantaneous Upwelling Pyrgeometer Case Thermistor Temperature, Pyrgeometer(inst_up_long_case_temp)
• altitude above sea levelaltunits(alt)
• east longitude for all the input platforms.(lon)
• Upwelling (10 meter) Shortwave Hemispheric Irradiance, Ventilated Pyranometer,
  Standard Deviation(up_short_hemisp_std)
• Downwelling Shortwave Diffuse Hemispheric Irradiance, Ventilated Pyranometer,
  Standard Deviation(down_short_diffuse_hemisp_std)
• Shortwave Direct Normal Irradiance, Pyrheliometer, Maxima(short_direct_normal_max)
• Downwelling Shortwave Diffuse Hemispheric Irradiance, Ventilated Pyranometer,
  Minima(down_short_diffuse_hemisp_min)
• Downwelling Shortwave Hemispheric Irradiance, Ventilated Pyrgeometer, Standard
  Deviation(down_short_hemisp_std)
• Upwelling (10 meter) Longwave Hemispheric Irradiance, Ventilated Pyrgeometer,
  Minima(up_long_hemisp_min)
• Shortwave Direct Normal Irradiance, Pyrheliometer, Standard Deviation(short_direct_normal_std)
• north latitude for all the input platforms.(lat)
• Downwelling Longwave Hemispheric Irradiance, Shaded Pyrgeometer, Standard
  Deviation(down_long_hemisp_shaded_std)
• Upwelling (10 meter) Shortwave Hemispheric Irradiance, Ventilated Pyranometer,
  Minima(up_short_hemisp_min)
• Downwelling Shortwave Diffuse Hemispheric Irradiance, Ventilated Pyranometer,
  Maxima(down_short_diffuse_hemisp_max)
• Downwelling Longwave Hemispheric Irradiance, Shaded Pyrgeometer(down_long_hemisp_shaded)
• Upwelling (10 meter) Longwave Hemispheric Irradiance, Ventilated Pyrgeometer,
  Standard Deviation(up_long_hemisp_std)
• Upwelling (10 meter) Shortwave Hemispheric Irradiance, Ventilated Pyranometer,
  Maxima(up_short_hemisp_max)
• Shortwave Direct Normal Irradiance, Pyrheliometer, Minima(short_direct_normal_min)
• Shortwave Direct Normal Irradiance, Pyrheliometer(short_direct_normal)
• Instantaneous Downwelling Pyrgeometer Dome Thermistor Temperature, Shaded
  Pyrgeometer(inst_down_long_shaded_dome_temp)

• Downwelling Longwave Hemispheric Irradiance, Shaded Pyrgeometer, Maxima(down_long_hemisp_shaded_max)
• Downwelling Longwave Hemispheric Irradiance, Shaded Pyrgeometer, Standard
  Deviation(down_long_hemisp_shaded_std)
• Shortwave Direct Normal Irradiance, Pyrheliometer, Minima(short_direct_normal_min)
• Downwelling Shortwave Diffuse Hemispheric Irradiance, Ventilated Pyranometer,
  Standard Deviation(down_short_diffuse_hemisp_std)
• Downwelling Shortwave Hemispheric Irradiance, Ventilated Pyrgeometer, Minima(down_short_hemisp_min)
• altitude above sea levelaltunits(alt)
• Downwelling Shortwave Hemispheric Irradiance, Ventilated Pyrgeometer, Standard
  Deviation(down_short_hemisp_std)
• Upwelling (10 meter) Longwave Hemispheric Irradiance, Ventilated Pyrgeometer,
  Minima(up_long_hemisp_min)
• east longitude for all the input platforms.(lon)
• Upwelling (10 meter) Shortwave Hemispheric Irradiance, Ventilated Pyranometer(up_short_hemisp)
• Shortwave Direct Normal Irradiance, Pyrheliometer, Standard Deviation(short_direct_normal_std)
• Downwelling Shortwave Diffuse Hemispheric Irradiance, Ventilated Pyranometer(down_short_diffuse_hemisp)
• Upwelling (10 meter) Longwave Hemispheric Irradiance, Ventilated Pyrgeometer(up_long_hemisp)
• Downwelling Shortwave Diffuse Hemispheric Irradiance, Ventilated Pyranometer,
  Minima(down_short_diffuse_hemisp_min)
• Shortwave Direct Normal Irradiance, Pyrheliometer, Maxima(short_direct_normal_max)
• Time offset from base_time(base_time)
• Battery voltage(vBatt)
• Downwelling Longwave Hemispheric Irradiance, Shaded Pyrgeometer(down_long_hemisp_shaded)
• Downwelling Shortwave Hemispheric Irradiance, Ventilated Pyrgeometer(down_short_hemisp)
• Time offset of tweaks from base_time(time_offset)
• Upwelling (10 meter) Shortwave Hemispheric Irradiance, Ventilated Pyranometer,
  Standard Deviation(up_short_hemisp_std)
• Downwelling Shortwave Hemispheric Irradiance, Ventilated Pyrgeometer, Maxima(down_short_hemisp_max)
• Upwelling (10 meter) Longwave Hemispheric Irradiance, Ventilated Pyrgeometer,
  Standard Deviation(up_long_hemisp_std)
• Upwelling (10 meter) Longwave Hemispheric Irradiance, Ventilated Pyrgeometer,
  Maxima(up_long_hemisp_max)
• Upwelling (10 meter) Shortwave Hemispheric Irradiance, Ventilated Pyranometer,
  Minima(up_short_hemisp_min)
• Downwelling Shortwave Diffuse Hemispheric Irradiance, Ventilated Pyranometer,
  Maxima(down_short_diffuse_hemisp_max)
• north latitude for all the input platforms.(lat)
• Upwelling (10 meter) Shortwave Hemispheric Irradiance, Ventilated Pyranometer,
  Maxima(up_short_hemisp_max)
• Downwelling Longwave Hemispheric Irradiance, Shaded Pyrgeometer, Minima(down_long_hemisp_shaded_min)
• Shortwave Direct Normal Irradiance, Pyrheliometer(short_direct_normal)

• Upwelling (10 meter) Shortwave Hemispheric Irradiance, Ventilated Pyranometer,
  Maxima(up_short_hemisp_max)
• Upwelling Longwave Hemispheric Net Infrared(up_long_netir)
• Shortwave Direct Normal Irradiance, Pyrheliometer(short_direct_normal)
• Upwelling (10 meter) Shortwave Hemispheric Irradiance, Ventilated Pyranometer,
  Standard Deviation(up_short_hemisp_std)
• Shortwave Direct Normal Irradiance, Pyrheliometer, Maxima(short_direct_normal_max)
• Downwelling Shortwave Diffuse Hemispheric Irradiance, Ventilated Pyranometer,
  Maxima(down_short_diffuse_hemisp_max)
• Instantaneous Upwelling Pyrgeometer Case Thermistor Temperature, Pyrgeometer(inst_up_long_case_temp)
• Downwelling Shortwave Hemispheric Irradiance, Ventilated Pyrgeometer, Minima(down_short_hemisp_min)
• Time offset from base_time(base_time)
• Downwelling Longwave Hemispheric Irradiance, Shaded Pyrgeometer, Minima(down_long_hemisp_shaded_min)
• Downwelling Shortwave Hemispheric Irradiance, Ventilated Pyrgeometer(down_short_hemisp)
• Upwelling (10 meter) Longwave Hemispheric Irradiance, Ventilated Pyrgeometer,
  Maxima(up_long_hemisp_max)
• Instantaneous Downwelling Pyrgeometer Dome Thermistor Temperature, Shaded
  Pyrgeometer(inst_down_long_shaded_dome_temp)
• Battery voltage(vBatt)
• Downwelling Shortwave Diffuse Hemispheric Irradiance, Ventilated Pyranometer(down_short_diffuse_hemisp)
• altitude above sea levelaltunits(alt)
• Upwelling (10 meter) Shortwave Hemispheric Irradiance, Ventilated Pyranometer(up_short_hemisp)
• Upwelling (10 meter) Longwave Hemispheric Irradiance, Ventilated Pyrgeometer,
  Minima(up_long_hemisp_min)
• Upwelling (10 meter) Longwave Hemispheric Irradiance, Ventilated Pyrgeometer(up_long_hemisp)
• Downwelling Shortwave Diffuse Hemispheric Irradiance, Ventilated Pyranometer,
  Standard Deviation(down_short_diffuse_hemisp_std)
• Upwelling (10 meter) Shortwave Hemispheric Irradiance, Ventilated Pyranometer,
  Minima(up_short_hemisp_min)
• Downwelling Longwave Hemispheric Irradiance, Shaded Pyrgeometer, Maxima(down_long_hemisp_shaded_max)
• Upwelling (10 meter) Longwave Hemispheric Irradiance, Ventilated Pyrgeometer,
  Standard Deviation(up_long_hemisp_std)
• Downwelling Longwave Hemispheric Net Infrared(down_long_netir)
• Instantaneous Upwelling Pyrgeometer Dome Thermistor Temperature, Pyrgeometer(inst_up_long_dome_temp)
• Downwelling Shortwave Hemispheric Irradiance, Ventilated Pyrgeometer, Maxima(down_short_hemisp_max)
• Instantaneous Downwelling Pyrgeometer Case Thermistor Temperature, Shaded
  Pyrgeometer(inst_down_long_shaded_case_temp)
• Time offset of tweaks from base_time(time_offset)
• Downwelling Longwave Hemispheric Irradiance, Shaded Pyrgeometer, Standard
  Deviation(down_long_hemisp_shaded_std)
• Downwelling Shortwave Hemispheric Irradiance, Ventilated Pyrgeometer, Standard
  Deviation(down_short_hemisp_std)
• east longitude for all the input platforms.(lon)
• north latitude for all the input platforms.(lat)
• Shortwave Direct Normal Irradiance, Pyrheliometer, Minima(short_direct_normal_min)
• Downwelling Shortwave Diffuse Hemispheric Irradiance, Ventilated Pyranometer,
  Minima(down_short_diffuse_hemisp_min)
• Downwelling Longwave Hemispheric Irradiance, Shaded Pyrgeometer(down_long_hemisp_shaded)
• Shortwave Direct Normal Irradiance, Pyrheliometer, Standard Deviation(short_direct_normal_std)

• Instantaneous Uncorrected Downwelling Shortwave Diffuse, Shaded Pyranometer
  Thermopile Voltage(inst_diffuse)
• Instantaneous Downwelling Pyrgeometer Thermopile Voltage, Shaded Pyrgeometer(inst_down_long_hemisp_shaded_tp)
• east longitude for all the input platforms.(lon)
• Instantaneous Downwelling Pyrgeometer Case Thermistor Resistance, Shaded
  Pyrgeometer(inst_down_long_shaded_case_resist)
• Instantaneous Downwelling Pyrgeometer Dome Thermistor Resistance, Shaded
  Pyrgeometer(inst_down_long_shaded_dome_resist)
• Instantaneous Upwelling Shortwave Irradiance, Inverted Pyranometer Thermopile
  Voltage(inst_up_short_hemisp)
• Instantaneous Upwelling Pyrgeometer Case Thermistor Resistance, Pyrgeometer(inst_up_long_case_resist)
• Time offset of tweaks from base_time(time_offset)
• Instantaneous Downwelling Hemispheric Shortwave, Unshaded Pyranometer Thermopile
  Voltage(inst_global)
• Time offset from base_time(base_time)
• Instantaneous Direct Normal Shortwave Irradiance, Pyrheliometer Thermopile
  Voltage(inst_direct_normal)
• Instantaneous Upwelling Pyrgeometer Dome Thermistor Resistance, Pyrgeometer(inst_up_long_dome_resist)
• altitude above sea levelaltunits(alt)
• north latitude for all the input platforms.(lat)
• Instantaneous Upwelling Pyrgeometer Thermopile Voltage, Pyrgeometer(inst_up_long_hemisp_tp)

• altitude above sea levelaltunits(alt)
• Measured Downwelling Diffuse Shortwave Irradiance (dif)(difswfluxdn_measured)
• Beginning Time of File (LST)(base_time_LST)
• Clear-sky Fit Estimated Downwelling Diffuse Field Shortwave Irradiance (cdif)(difswfluxdn_clearskyfit)
• Time offset of tweaks from base_time(time_offset)
• east longitude for all the input platforms.(lon)
• Clear-sky Fit Estimated Downwelling Global Shortwave Irradiance (cgsw)(gswfluxdn_clearskyfit)
• Number of 1-minute Clear-sky Detections in the 15-minute Interval (Nclr)(nsamples_clearsky_detection)
• Average over the interval of the standard deviation of difratiodn_measured
  computed using a 3-5 sample window centered at each 1-min sample(difratiodn_measured_stdev)
• Clear-sky Fit Estimated Downwelling Summed Shortwave Irradiance
  (dirfluxdn_clearskyfit+diffluxdn_clearskyfit) (cssw)(sswfluxdn_clearskyfit)
• Ratio of Clear-sky Fit Estimated Downwelling Diffuse Shortwave Irradiance to
  Clear-sky Fit Estimated Downwelling Global Shortwave Irradiance (cdifr)(difratiodn_clearskyfit)
• Measured Downwelling Summed Shortwave Irradiance
  (dirfluxdn_measured+diffluxdn_measured) (ssw)(sswfluxdn_measured)
• Difference: gswfluxdn_measured - gswfluxdn_clearskyfit (gswfcg)(gswfluxdn_cloudeffect)
• Ratio of Measured Downwelling Diffuse Shortwave Irradiance to Measured
  Downwelling Global Shortwave Irradiance (difr)(difratiodn_measured)
• Clear-sky Fit Estimated Surface Albedo from Shortwave Irradiance Measurements
  (calb)(albedosw_clearskyfit)
• Estimated Average Fractional Sky Cover over the Hemispheric Dome (cf)(cloudfraction)
• Time offset from base_time(base_time)
• Clear-sky Fit Estimated Downwelling Global UVB Irradiance (cguvb)(guvbdn_clearskyfit)
• Number of 1-minute Clear-sky Fit Downwelling Global Shortwave Irradiance
  Estimates in the 15-minute Interval (Ncsw)(nsamples_gswfluxdn_clearskyfit)
• Difference: sswfluxdn_measured - sswfluxdn_clearskyfit (sswfcg)(sswfluxdn_cloudeffect)
• Measured Downwelling Global Shortwave Irradiance (gsw)(gswfluxdn_measured)
• Arithmetic Average Distance from the Earth to the Sun (au)(sun_earth_distance)
• Clear-sky Fit Estimated Downwelling Direct Shortwave Irradiance (cdir)(dirfluxdn_clearskyfit)
• Measured Downwelling Direct Shortwave Irradiance (dir)(dirfluxdn_measured)
• Difference: difswfluxdn_measured - difswfluxdn_clearskyfit (diffcg)(difswfluxdn_cloudeffect)
• Arithmetic Average Cosine of the Solar Zenith Angle Z (CosZ)(solar_cos_z)
• north latitude for all the input platforms.(lat)
• Measured Downwelling Global UVB Irradiance (guvb)(guvbdn_measured)
• Number of 1-minute Measured Downwelling Summed Shortwave Irradiances in the
  15-minute Interval (Nssw)(nsamples_sswfluxdn_measured)
• Time Offset from base_time_LST(time_offset_LST)
• Number of 1-minute Cloud Fraction Estimates in the 15-minute Interval (Ncf)(nsamples_cloudfraction)
• Ratio of Measured minus Clear-sky Fit Estimated Downwelling Diffuse Shortwave
  Irradiance to Clear-sky Fit Estimated Downwelling Global Shortwave Irradiance
  (di(difcloudeffect_normalized)
• Measured Surface Albedo from Shortwave Irradiance Measurements (alb)(albedosw_measured)
• Site Identification(site)

• Measured Downwelling Diffuse Shortwave Irradiance (dif)(difswfluxdn_measured)
• Clear-sky Fit Coefficient b to Summed Shortwave Irradiance (CSWb)(coef_clearsky_ssw_b)
• Difference: gswfluxdn_measured - gswfluxdn_clearskyfit (gswfcg)(gswfluxdn_cloudeffect)
• altitude above sea levelaltunits(alt)
• Clear-sky Fit Coefficient a to Summed Shortwave Irradiance (CSWa)(coef_clearsky_ssw_a)
• Site Identification(site)
• Beginning Time of File (LST)(base_time_LST)
• Arithmetic Average Cosine of the Solar Zenith Angle Z (CosZ)(solar_cos_z)
• Date (YYMMDD LST) for which the Coefficients are Applicable(coef_date)
• Clear-sky Fit Coefficient a to Global UVB Irradiance (UVBa)(coef_clearsky_guvb_a)
• Difference: sswfluxdn_measured - sswfluxdn_clearskyfit (sswfcg)(sswfluxdn_cloudeffect)
• Clear-sky Fit Coefficient b to Global UVB Irradiance (UVBb)(coef_clearsky_guvb_b)
• Difference: difswfluxdn_measured - difswfluxdn_clearskyfit (diffcg)(difswfluxdn_cloudeffect)
• Measured Downwelling Global Shortwave Irradiance (gsw)(gswfluxdn_measured)
• Measured Surface Albedo from Shortwave Irradiance Measurements (alb)(albedosw_measured)
• Clear-sky Fit Estimated Surface Albedo from Shortwave Irradiance Measurements
  (calb)(albedosw_clearskyfit)
• north latitude for all the input platforms.(lat)
• Clear-sky Detection Flag (clrf)(flag_clearsky_detection)
• Arithmetic Average Distance from the Earth to the Sun (au)(sun_earth_distance)
• Clear-sky Fit Coefficient b to Global minus Summed Shortwave Irradiance
  Difference (SCORb)(coef_clearsky_dsw_b)
• Clear-sky Fit Coefficient a to Global minus Summed Shortwave Irradiance
  Difference (SCORa)(coef_clearsky_dsw_a)
• Time Offset from base_time_LST(time_offset_LST)
• Time offset from base_time(base_time)
• Measured Downwelling Summed Shortwave Irradiance
  (dirfluxdn_measured+diffluxdn_measured) (ssw)(sswfluxdn_measured)
• Clear-sky Fit Coefficient b to Albedo (Albb)(coef_clearsky_albedo_b)
• east longitude for all the input platforms.(lon)
• Measured Downwelling Global UVB Irradiance (guvb)(guvbdn_measured)
• Measured Downwelling Direct Shortwave Irradiance (dir)(dirfluxdn_measured)
• Clear-sky Fit Coefficient b to Diffuse Irradiance to Total Irradiance Ratio
  (DFRb)(coef_clearsky_difratio_b)
• Clear-sky Fit Coefficient a to Albedo (Alba)(coef_clearsky_albedo_a)
• Clear-sky Fit Coefficient a to Diffuse Irradiance to Total Irradiance Ratio
  (DFRa)(coef_clearsky_difratio_a)
• Clear-sky Fit Coefficient b to Global Shortwave Irradiance (CSWb)(coef_clearsky_gsw_b)
• Clear-sky Offset Coefficient c for Global minus Summed Shortwave Irradiance
  Difference (SCORc)(coef_clearsky_dsw_c)
• Ratio of Clear-sky Fit Estimated Downwelling Diffuse Shortwave Irradiance to
  Clear-sky Fit Estimated Downwelling Global Shortwave Irradiance (cdifr)(difratiodn_clearskyfit)
• Ratio of Measured Downwelling Diffuse Shortwave Irradiance to Measured
  Downwelling Global Shortwave Irradiance (difr)(difratiodn_measured)
• Clear-sky Fit Estimated Downwelling Direct Shortwave Irradiance (cdir)(dirfluxdn_clearskyfit)
• Clear-sky Fit Estimated Downwelling Global Shortwave Irradiance (cgsw)(gswfluxdn_clearskyfit)
• Clear-sky Fit Estimated Downwelling Diffuse Field Shortwave Irradiance (cdif)(difswfluxdn_clearskyfit)
• Daily Averaged Distance from the Earth to the Sun (auavg)(sun_earth_distance_dailyaverage)
• Clear-sky Fit Estimated Downwelling Summed Shortwave Irradiance
  (dirfluxdn_clearskyfit+diffluxdn_clearskyfit) (cssw)(sswfluxdn_clearskyfit)
• Time offset of tweaks from base_time(time_offset)
• Clear-sky Fit Coefficient a to Global Shortwave Irradiance (CSWa)(coef_clearsky_gsw_a)
• Clear-sky Fit Estimated Downwelling Global UVB Irradiance (cguvb)(guvbdn_clearskyfit)

• Raw data stream - documentation not supported(Raw data stream - documentation not supported)

SGP/SIRS/E16 - Tracker Misaligned

Direct Normal Shortwave (NIP) values may be reduced by tracker
misalignment (tracker clock slow by 2 minutes 10 sec on 2/18/04).

Downwelling Diffuse (DD) values may be increased by the tracker
misalignment.

Error amounts can not be accurately quantified.

• Downwelling Shortwave Diffuse Hemispheric Irradiance, Ventilated Pyranometer(down_short_diffuse_hemisp)
• Shortwave Direct Normal Irradiance, Pyrheliometer(short_direct_normal)
• Shortwave Direct Normal Irradiance, Pyrheliometer, Standard Deviation(short_direct_normal_std)
• Downwelling Shortwave Diffuse Hemispheric Irradiance, Ventilated Pyranometer,
  Maxima(down_short_diffuse_hemisp_max)
• Shortwave Direct Normal Irradiance, Pyrheliometer, Maxima(short_direct_normal_max)
• Shortwave Direct Normal Irradiance, Pyrheliometer, Minima(short_direct_normal_min)
• Downwelling Shortwave Diffuse Hemispheric Irradiance, Ventilated Pyranometer,
  Minima(down_short_diffuse_hemisp_min)
• Downwelling Shortwave Diffuse Hemispheric Irradiance, Ventilated Pyranometer,
  Standard Deviation(down_short_diffuse_hemisp_std)

• Instantaneous Uncorrected Downwelling Shortwave Diffuse, Shaded Pyranometer
  Thermopile Voltage(inst_diffuse)
• Instantaneous Direct Normal Shortwave Irradiance, Pyrheliometer Thermopile
  Voltage(inst_direct_normal)

SGP/SIRS/E16 - PSP Dome Contamination

Downwelling Shortwave (DS) values near 22:00 GMT during clear skys are
lower than expected due to contamination of pyranometer dome.  A dime-sized
spot of dirt was found on the southwest portion of the pyranometer dome. 
DS values for cloudy conditions during this period are also suspect, but
the amount of irradiance reduction are not significant.

• Downwelling Shortwave Hemispheric Irradiance, Ventilated Pyrgeometer, Minima(down_short_hemisp_min)
• Downwelling Shortwave Hemispheric Irradiance, Ventilated Pyrgeometer(down_short_hemisp)
• Downwelling Shortwave Hemispheric Irradiance, Ventilated Pyrgeometer, Maxima(down_short_hemisp_max)
• Downwelling Shortwave Hemispheric Irradiance, Ventilated Pyrgeometer, Standard
  Deviation(down_short_hemisp_std)

• Instantaneous Downwelling Hemispheric Shortwave, Unshaded Pyranometer Thermopile
  Voltage(inst_global)

SGP/ECOR/E16 - Data suspect due to inability to run QC

Some QC checks were unsuccessful due to a communication failure that resulted in 
contaminated QC field data.

All the data that are based on water vapor density and CO2 concentration are "suspect" 
because many of the standard QC checks were not employed.

• number of samples with \IRGA hardware problem\ flag(n_bad_irga)
• latent heat flux(lv_e)
• covariance of qc(cvar_qc)
• kurtosis of variable c(kurt_c)
• rotated covariance uq(cvar_rot_uq)
• rotated covariance vc(cvar_rot_vc)
• mixing ratio(mr)
• number of valid c samples(n_good_c)
• 0=real or 1=dummy value of lv(real_lv)
• specific heat of moist air(cp)
• covariance wq(cvar_wq)
• 0=real or 1=dummy value of rho(real_rho)
• skewness of variable c(skew_c)
• mean value of out of range values and spikes of c -9999 if no spikes(mean_spk_c)
• covariance uq(cvar_uq)
• mean value of out of range values and spikes of q -9999 if no spikes(mean_spk_q)
• number of q samples removed due to spikes(n_spk_q)
• mean co2 concentration (c)(mean_c)
• rotated covariance uc(cvar_rot_uc)
• mean water vapor concentration (q)(mean_q)
• variance of variable q(var_q)
• latent heat of vaporization(lv)
• number of bad or out of range q samples(n_bad_q)
• 0=real or 1=dummy value of mr(real_mr)
• covariance vq(cvar_vq)
• Retrieved water vapor density profile(rho)
• rotated covariance wc(cvar_rot_wc)
• covariance wc(cvar_wc)
• 0=real or 1=dummy value of cp(real_cp)
• average voltage of IRGA cooler(mean_cooler)
• skewness of variable q(skew_q)
• covariance of tq(cvar_tq)
• covariance uc(cvar_uc)
• number of samples with IRGA optical path blocked flag(n_bad_irga_light)
• variance of variable c(var_c)
• rotated covariance wq(cvar_rot_wq)
• average atmospheric pressure (IGRA internal sensor)(atm_pres)
• covariance vc(cvar_vc)
• rotated covariance vq(cvar_rot_vq)
• average temperature (IGRA internal sensor)(temp_irga)
• number of valid q samples(n_good_q)
• number of c samples removed due to spikes(n_spk_c)
• kurtosis of variable q(kurt_q)
• CO2 flux(fc)
• covariance of tc(cvar_tc)
• number of bad or out of range c samples(n_bad_c)

• Raw data stream - documentation not supported(Raw data stream - documentation not supported)

SGP/SIRS/C1/E13 - Incorrect calibration coefficients

After the DIR changeout on 8/27, the DLH measurements at the central facility vary 
significantly between pyrgeometers by as much as 65 Wm^(-2).  It was discovered that the two 
downwelling pyrgeometers destined for C1 and E13 may have been swapped during installation.  
The instrument mentor is unsure of applied calibration coefficients during this DQR's 
time period.  Backing out new downwelling longwave irradiances would be difficult in this 
case. Fortunately, the problem period is less than a fortnight.

• Downwelling Longwave Hemispheric Irradiance, Shaded Pyrgeometer, Standard
  Deviation(down_long_hemisp_shaded_std)
• Downwelling Longwave Hemispheric Irradiance, Shaded Pyrgeometer, Maxima(down_long_hemisp_shaded_max)
• Instantaneous Downwelling Pyrgeometer Case Thermistor Temperature, Shaded
  Pyrgeometer(inst_down_long_shaded_case_temp)
• Downwelling Longwave Hemispheric Net Infrared(down_long_netir)
• Instantaneous Downwelling Pyrgeometer Dome Thermistor Temperature, Shaded
  Pyrgeometer(inst_down_long_shaded_dome_temp)
• Downwelling Longwave Hemispheric Irradiance, Shaded Pyrgeometer(down_long_hemisp_shaded)
• Downwelling Longwave Hemispheric Irradiance, Shaded Pyrgeometer, Minima(down_long_hemisp_shaded_min)

• Downwelling Longwave Hemispheric Irradiance, Shaded Pyrgeometer, Standard
  Deviation(down_long_hemisp_shaded_std)
• Downwelling Longwave Hemispheric Net Infrared(down_long_netir)
• Instantaneous Downwelling Pyrgeometer Dome Thermistor Temperature, Shaded
  Pyrgeometer(inst_down_long_shaded_dome_temp)
• Downwelling Longwave Hemispheric Irradiance, Shaded Pyrgeometer, Maxima(down_long_hemisp_shaded_max)
• Downwelling Longwave Hemispheric Irradiance, Shaded Pyrgeometer(down_long_hemisp_shaded)
• Instantaneous Downwelling Pyrgeometer Case Thermistor Temperature, Shaded
  Pyrgeometer(inst_down_long_shaded_case_temp)
• Downwelling Longwave Hemispheric Irradiance, Shaded Pyrgeometer, Minima(down_long_hemisp_shaded_min)

• Raw data stream - documentation not supported(Raw data stream - documentation not supported)

• Instantaneous Downwelling Pyrgeometer Thermopile Voltage, Shaded Pyrgeometer(inst_down_long_hemisp_shaded_tp)
• Instantaneous Downwelling Pyrgeometer Case Thermistor Resistance, Shaded
  Pyrgeometer(inst_down_long_shaded_case_resist)
• Instantaneous Downwelling Pyrgeometer Dome Thermistor Resistance, Shaded
  Pyrgeometer(inst_down_long_shaded_dome_resist)

• Instantaneous Downwelling Pyrgeometer Case Thermistor Resistance, Shaded
  Pyrgeometer(inst_down_long_shaded_case_resist)
• Instantaneous Downwelling Pyrgeometer Dome Thermistor Resistance, Shaded
  Pyrgeometer(inst_down_long_shaded_dome_resist)
• Instantaneous Downwelling Pyrgeometer Thermopile Voltage, Shaded Pyrgeometer(inst_down_long_hemisp_shaded_tp)

• Raw data stream - documentation not supported(Raw data stream - documentation not supported)

SGP/ECOR/E16 - No water vapor density and CO2 concentration data due to sensor failure.

The infrared gas analyzer (IRGA) failed on Nov. 2, 2004, 02:00; the system continued to 
operate without H2O and CO2 data until Nov. 9, 2004, 15:30; then it stopped due to another 
hardware failure. The system was returned in service on Nov. 12, 2004, 18:00.

The latent heat flux and CO2 flux data are irrevocably lost for the period from Nov. 2, 
2004, 02:00 to Nov. 12, 2004, 18:00.

• number of samples with \IRGA hardware problem\ flag(n_bad_irga)
• latent heat flux(lv_e)
• covariance of qc(cvar_qc)
• kurtosis of variable c(kurt_c)
• rotated covariance uq(cvar_rot_uq)
• rotated covariance vc(cvar_rot_vc)
• mixing ratio(mr)
• number of valid c samples(n_good_c)
• 0=real or 1=dummy value of lv(real_lv)
• specific heat of moist air(cp)
• covariance wq(cvar_wq)
• 0=real or 1=dummy value of rho(real_rho)
• skewness of variable c(skew_c)
• mean value of out of range values and spikes of c -9999 if no spikes(mean_spk_c)
• covariance uq(cvar_uq)
• mean value of out of range values and spikes of q -9999 if no spikes(mean_spk_q)
• number of q samples removed due to spikes(n_spk_q)
• mean co2 concentration (c)(mean_c)
• rotated covariance uc(cvar_rot_uc)
• mean water vapor concentration (q)(mean_q)
• variance of variable q(var_q)
• latent heat of vaporization(lv)
• number of bad or out of range q samples(n_bad_q)
• 0=real or 1=dummy value of mr(real_mr)
• covariance vq(cvar_vq)
• Retrieved water vapor density profile(rho)
• rotated covariance wc(cvar_rot_wc)
• covariance wc(cvar_wc)
• 0=real or 1=dummy value of cp(real_cp)
• average voltage of IRGA cooler(mean_cooler)
• skewness of variable q(skew_q)
• covariance of tq(cvar_tq)
• covariance uc(cvar_uc)
• number of samples with IRGA optical path blocked flag(n_bad_irga_light)
• variance of variable c(var_c)
• rotated covariance wq(cvar_rot_wq)
• average atmospheric pressure (IGRA internal sensor)(atm_pres)
• covariance vc(cvar_vc)
• rotated covariance vq(cvar_rot_vq)
• average temperature (IGRA internal sensor)(temp_irga)
• number of valid q samples(n_good_q)
• number of c samples removed due to spikes(n_spk_c)
• kurtosis of variable q(kurt_q)
• CO2 flux(fc)
• covariance of tc(cvar_tc)
• number of bad or out of range c samples(n_bad_c)

• Raw data stream - documentation not supported(Raw data stream - documentation not supported)

SGP/ECOR/E16 - No data due to hardware problem

The system did not work due to hardware problems from Nov. 9, 2004, 15:30 to 
Nov. 12, 2004, 18:00; all the data is  irrevocably lost.

• altitude above sea levelaltunits(alt)
• number of samples with \IRGA hardware problem\ flag(n_bad_irga)
• north latitude for all the input platforms.(lat)
• rotated covariance ut(cvar_rot_ut)
• latent heat flux(lv_e)
• number of valid u samples(n_good_u)
• number of samples with bad sonic status flag(n_bad_son_ic)
• 0=real or 1=dummy value of lv(real_lv)
• variance of variable u(var_u)
• covariance wq(cvar_wq)
• 0=real or 1=dummy value of rho(real_rho)
• vw covariance(cvar_vw)
• corrected sensible heat flux(h)
• standard deviation of wind elevation angle(std_elev)
• variance of variable w(var_w)
• wT covariance(cvar_wt)
• Time offset of tweaks from base_time(time_offset)
• mean w (vertical) wind component(mean_w)
• number of valid t samples(n_good_t)
• covariance vq(cvar_vq)
• Retrieved water vapor density profile(rho)
• rotated covariance wt(cvar_rot_wt)
• variance of variable c(var_c)
• vector averaged wind speed(wind_spd)
• covariance vc(cvar_vc)
• momentum flux (dynamic)(k)
• skewness of variable t(skew_t)
• standard deviation of wind direction(std_wind_dir)
• covariance of tc(cvar_tc)
• number of valid q samples(n_good_q)
• number of v samples removed due to spikes(n_spk_v)
• vertical (elevation) wind angle(elev)
• kurtosis of variable u(kurt_u)
• kurtosis of variable c(kurt_c)
• Time offset from base_time(base_time)
• rotated covariance uq(cvar_rot_uq)
• mixing ratio(mr)
• rotated mean v(mean_rot_v)
• number of valid c samples(n_good_c)
• covariance vt(cvar_vt)
• number of bad or out of range v samples(n_bad_v)
• number of bad or out of range u samples(n_bad_u)
• mean value of out of range values and spikes of t -9999 if no spikes(mean_spk_t)
• variance of variable v(var_v)
• mean co2 concentration (c)(mean_c)
• mean water vapor concentration (q)(mean_q)
• rotated mean w(mean_rot_w)
• rotated covariance vt(cvar_rot_vt)
• covariance wc(cvar_wc)
• number of w samples removed due to spikes(n_spk_w)
• skewness of variable q(skew_q)
• covariance of tq(cvar_tq)
• mean horizontal wind speed(mean_rot_u)
• mean value of \spike\ u samples(mean_spk_u)
• number of valid w samples(n_good_w)
• number of t samples removed due to spikes(n_spk_t)
• average atmospheric pressure (IGRA internal sensor)(atm_pres)
• rotated covariance vq(cvar_rot_vq)
• average temperature (IGRA internal sensor)(temp_irga)
• number of c samples removed due to spikes(n_spk_c)
• number of u samples removed due to spikes(n_spk_u)
• covariance ut(cvar_ut)
• friction velocity(ustar)
• covariance of qc(cvar_qc)
• rotated variance v(var_rot_v)
• vector averaged wind direction(wind_dir)
• variance of variable t(var_t)
• mean value of \spike\ v samples(mean_spk_v)
• kurtosis of variable w(kurt_w)
• skewness of variable c(skew_c)
• mean value of out of range values and spikes of c -9999 if no spikes(mean_spk_c)
• number of bad or out of range w samples(n_bad_w)
• mean value of out of range values and spikes of q -9999 if no spikes(mean_spk_q)
• number of q samples removed due to spikes(n_spk_q)
• Vertical angle of wind(phi)
• variance of variable q(var_q)
• rotated covariance uc(cvar_rot_uc)
• skewness of variable w(skew_w)
• number of bad or out of range q samples(n_bad_q)
• kurtosis of variable v(kurt_v)
• rotated variance u(var_rot_u)
• number of bad or out of range t samples(n_bad_t)
• 0=real or 1=dummy value of cp(real_cp)
• average voltage of IRGA cooler(mean_cooler)
• Down-boom wind velocity (u)(mean_u)
• rotated covariance uw(cvar_rot_uw)
• Cross-boom wind velocity (v)(mean_v)
• kurtosis of variable q(kurt_q)
• number of bad or out of range c samples(n_bad_c)
• rotated variance w(var_rot_w)
• mean value of \spike\ w samples(mean_spk_w)
• kurtosis of variable t(kurt_t)
• rotated covariance vc(cvar_rot_vc)
• uw covariance(cvar_uw)
• specific heat of moist air(cp)
• Time offset from midnight of date of file. For CO data, this is identical to
  time_offset and is included for compatibility.(time)
• skewness of variable u(skew_u)
• covariance uq(cvar_uq)
• rotated covariance uv(cvar_rot_uv)
• east longitude for all the input platforms.(lon)
• latent heat of vaporization(lv)
• mean sonic temperature (t), i.e. virtual temperature(mean_t)
• 0=real or 1=dummy value of mr(real_mr)
• skewness of variable v(skew_v)
• rotated covariance wc(cvar_rot_wc)
• covariance uv(cvar_uv)
• covariance uc(cvar_uc)
• number of samples with IRGA optical path blocked flag(n_bad_irga_light)
• rotated covariance wq(cvar_rot_wq)
• rotated covariance vw(cvar_rot_vw)
• number of valid v samples(n_good_v)
• CO2 flux(fc)

• Raw data stream - documentation not supported(Raw data stream - documentation not supported)

SGP/SIRS/E16 - Ice storm

Data missing due to ice storm.

• Shortwave Direct Normal Irradiance, Pyrheliometer(short_direct_normal)
• Downwelling Shortwave Hemispheric Irradiance, Ventilated Pyrgeometer(down_short_hemisp)
• Downwelling Shortwave Hemispheric Irradiance, Ventilated Pyrgeometer, Maxima(down_short_hemisp_max)
• Battery voltage(vBatt)
• Downwelling Shortwave Hemispheric Irradiance, Ventilated Pyrgeometer, Standard
  Deviation(down_short_hemisp_std)
• Upwelling (10 meter) Longwave Hemispheric Irradiance, Ventilated Pyrgeometer,
  Maxima(up_long_hemisp_max)
• Upwelling (10 meter) Longwave Hemispheric Irradiance, Ventilated Pyrgeometer,
  Minima(up_long_hemisp_min)
• Instantaneous Upwelling Pyrgeometer Dome Thermistor Temperature, Pyrgeometer(inst_up_long_dome_temp)
• Downwelling Shortwave Hemispheric Irradiance, Ventilated Pyrgeometer, Minima(down_short_hemisp_min)
• Upwelling (10 meter) Longwave Hemispheric Irradiance, Ventilated Pyrgeometer(up_long_hemisp)
• Upwelling (10 meter) Shortwave Hemispheric Irradiance, Ventilated Pyranometer,
  Standard Deviation(up_short_hemisp_std)
• Upwelling (10 meter) Shortwave Hemispheric Irradiance, Ventilated Pyranometer(up_short_hemisp)
• Shortwave Direct Normal Irradiance, Pyrheliometer, Minima(short_direct_normal_min)
• Upwelling (10 meter) Shortwave Hemispheric Irradiance, Ventilated Pyranometer,
  Minima(up_short_hemisp_min)
• Downwelling Shortwave Diffuse Hemispheric Irradiance, Ventilated Pyranometer,
  Standard Deviation(down_short_diffuse_hemisp_std)
• east longitude for all the input platforms.(lon)
• Downwelling Shortwave Diffuse Hemispheric Irradiance, Ventilated Pyranometer(down_short_diffuse_hemisp)
• Downwelling Longwave Hemispheric Irradiance, Shaded Pyrgeometer, Minima(down_long_hemisp_shaded_min)
• Shortwave Direct Normal Irradiance, Pyrheliometer, Standard Deviation(short_direct_normal_std)
• Downwelling Shortwave Diffuse Hemispheric Irradiance, Ventilated Pyranometer,
  Minima(down_short_diffuse_hemisp_min)
• Upwelling (10 meter) Shortwave Hemispheric Irradiance, Ventilated Pyranometer,
  Maxima(up_short_hemisp_max)
• Upwelling Longwave Hemispheric Net Infrared(up_long_netir)
• Downwelling Longwave Hemispheric Net Infrared(down_long_netir)
• Instantaneous Downwelling Pyrgeometer Case Thermistor Temperature, Shaded
  Pyrgeometer(inst_down_long_shaded_case_temp)
• Time offset from base_time(base_time)
• Instantaneous Upwelling Pyrgeometer Case Thermistor Temperature, Pyrgeometer(inst_up_long_case_temp)
• north latitude for all the input platforms.(lat)
• Downwelling Longwave Hemispheric Irradiance, Shaded Pyrgeometer, Maxima(down_long_hemisp_shaded_max)
• Downwelling Shortwave Diffuse Hemispheric Irradiance, Ventilated Pyranometer,
  Maxima(down_short_diffuse_hemisp_max)
• Downwelling Longwave Hemispheric Irradiance, Shaded Pyrgeometer, Standard
  Deviation(down_long_hemisp_shaded_std)
• altitude above sea levelaltunits(alt)
• Upwelling (10 meter) Longwave Hemispheric Irradiance, Ventilated Pyrgeometer,
  Standard Deviation(up_long_hemisp_std)
• Time offset of tweaks from base_time(time_offset)
• Shortwave Direct Normal Irradiance, Pyrheliometer, Maxima(short_direct_normal_max)
• Instantaneous Downwelling Pyrgeometer Dome Thermistor Temperature, Shaded
  Pyrgeometer(inst_down_long_shaded_dome_temp)
• Downwelling Longwave Hemispheric Irradiance, Shaded Pyrgeometer(down_long_hemisp_shaded)

• Instantaneous Upwelling Shortwave Irradiance, Inverted Pyranometer Thermopile
  Voltage(inst_up_short_hemisp)
• Instantaneous Uncorrected Downwelling Shortwave Diffuse, Shaded Pyranometer
  Thermopile Voltage(inst_diffuse)
• Instantaneous Downwelling Hemispheric Shortwave, Unshaded Pyranometer Thermopile
  Voltage(inst_global)
• Instantaneous Downwelling Pyrgeometer Thermopile Voltage, Shaded Pyrgeometer(inst_down_long_hemisp_shaded_tp)
• east longitude for all the input platforms.(lon)
• Instantaneous Upwelling Pyrgeometer Thermopile Voltage, Pyrgeometer(inst_up_long_hemisp_tp)
• Instantaneous Downwelling Pyrgeometer Dome Thermistor Resistance, Shaded
  Pyrgeometer(inst_down_long_shaded_dome_resist)
• north latitude for all the input platforms.(lat)
• Instantaneous Direct Normal Shortwave Irradiance, Pyrheliometer Thermopile
  Voltage(inst_direct_normal)
• Instantaneous Upwelling Pyrgeometer Dome Thermistor Resistance, Pyrgeometer(inst_up_long_dome_resist)
• Time offset of tweaks from base_time(time_offset)
• Instantaneous Upwelling Pyrgeometer Case Thermistor Resistance, Pyrgeometer(inst_up_long_case_resist)
• altitude above sea levelaltunits(alt)
• Instantaneous Downwelling Pyrgeometer Case Thermistor Resistance, Shaded
  Pyrgeometer(inst_down_long_shaded_case_resist)
• Time offset from base_time(base_time)

SGP/SIRS/E13 - Monthly Report

:Data quality this site-month is good. The offset for the Global PSP is about -7 W/m^2.
The dominant problem here is the daytime 3 component problem. Direct and Diffuse are
always too high and Global is too low. The problem occurs around the time that the
testing regime switches from twilight to daytime testing regimes or from daytime to
twilight. The flags occur in significant numbers on the 1st - 5th, 7th - 20th, 24th - 
28th,
30th, and 31st. The failures vary in magnitude and duration. The worst flags for a 
particular

respect to this problem. Global goes below daytime empirical limits on both the 5th and
6th for substantial periods of time. Diffuse
also goes below daytime empirical limits on the 6th in the afternoon. Upwelling Longwave
is
below empirical limits on the 24th. This may not be a problem, as many sites exhibited
the same problem on the same night. Exceptionally cold temperatures may be the cause.

• Downwelling Longwave Hemispheric Irradiance, Shaded Pyrgeometer(down_long_hemisp_shaded)
• Upwelling (10 meter) Longwave Hemispheric Irradiance, Ventilated Pyrgeometer(up_long_hemisp)
• Downwelling Shortwave Hemispheric Irradiance, Ventilated Pyrgeometer(down_short_hemisp)
• Shortwave Direct Normal Irradiance, Pyrheliometer(short_direct_normal)
• Upwelling (10 meter) Shortwave Hemispheric Irradiance, Ventilated Pyranometer(up_short_hemisp)
• Downwelling Shortwave Diffuse Hemispheric Irradiance, Ventilated Pyranometer(down_short_diffuse_hemisp)

SGP/ECOR/E16  - Reprocess: Incorrectly flagged (marked as "bad") H2O/CO2 data

Due to system clock instability on ECOR computers their system time is adjusted 
approximately once per hour; sometimes this adjustment leads to backward time jumps over midnight, 
into the previous day. In this case all the data based on CO2/H2O measurements might be 
erroneously marked as bad. Below is a list of times when that might have happen. 

SITE    YEAR    MONTH   DAY     HOUR    MINUTE
16      2004    02      23      00      00
16      2004    02      28      00      00
16      2004    03      01      00      00
16      2004    03      09      00      00
16      2004    03      15      00      00
16      2004    03      17      00      00
16      2004    03      22      00      00
16      2004    03      30      00      00
16      2004    04      02      00      00
16      2004    07      22      00      00
16      2004    08      06      00      00
16      2004    09      05      00      00
16      2004    09      20      00      00
16      2005    03      13      00      00

• latent heat flux(lv_e)
• covariance of qc(cvar_qc)
• rotated covariance vc(cvar_rot_vc)
• mixing ratio(mr)
• number of valid c samples(n_good_c)
• 0=real or 1=dummy value of lv(real_lv)
• specific heat of moist air(cp)
• covariance wq(cvar_wq)
• 0=real or 1=dummy value of rho(real_rho)
• skewness of variable c(skew_c)
• mean value of out of range values and spikes of c -9999 if no spikes(mean_spk_c)
• covariance uq(cvar_uq)
• mean value of out of range values and spikes of q -9999 if no spikes(mean_spk_q)
• number of q samples removed due to spikes(n_spk_q)
• mean co2 concentration (c)(mean_c)
• rotated covariance uc(cvar_rot_uc)
• mean water vapor concentration (q)(mean_q)
• variance of variable q(var_q)
• latent heat of vaporization(lv)
• number of bad or out of range q samples(n_bad_q)
• 0=real or 1=dummy value of mr(real_mr)
• covariance vq(cvar_vq)
• Retrieved water vapor density profile(rho)
• rotated covariance wc(cvar_rot_wc)
• covariance wc(cvar_wc)
• 0=real or 1=dummy value of cp(real_cp)
• skewness of variable q(skew_q)
• covariance of tq(cvar_tq)
• covariance uc(cvar_uc)
• variance of variable c(var_c)
• rotated covariance wq(cvar_rot_wq)
• covariance vc(cvar_vc)
• rotated covariance vq(cvar_rot_vq)
• number of valid q samples(n_good_q)
• CO2 flux(fc)
• covariance of tc(cvar_tc)
• number of bad or out of range c samples(n_bad_c)
• number of c samples removed due to spikes(n_spk_c)

SGP/SIRS/E13 - Reprocess: incorrect calibrations

After a long data gap on 5/25/2005, presumably a power outage, the following datastreams 
were showing incorrect values as well as incorrect calibration coefficients in the 
datalogger program:
down_long_hemisp_shaded (downwelling PIR instrument)
up_long_hemisp (upwelling PIR instrument)
short_direct_normal (NIP instrument)

The SIRS.E13 datalogger was power cycled (6/2/2005 2200GMT) and the correct program loaded 
into the SIRS datalogger and storage module.

The data during this time range can be recalibrated as follows:
First divide value by incorrectly applied cal coeff (first number) then multiply by 
correct cal coeff (second number)
  short_direct_normal           120.28	124.58
  up_long_netir                 0.2386	0.2595
  down_long_netir               0.3052	0.2304

Reapply cal coeffs below using up_long_netIR(uV), inst_up_long_dome_temp(K),   
inst_up_long_dome_temp(K) using procedure described in SIRS instrument manual.
  up_long_hemisp
	k0	-18.3400 W/m^2\n,
	k1	0.2595 W/(m^2*uV)\n,
	k2	1.0380 unitless\n,
	k3	-2.7420 unitless\n,
	kr	0.0007044 K/uV\n,

Reapply cal coeffs below using down_long_netIR(uV),inst_down_long_dome_temp 
(K),inst_down_long_dome_temp(K).
  down_long_hemisp_shaded	
        k0	-11.6300 W/m^2\n,
	k1	0.2304 W/(m^2*uV)\n,
	k2	1.0190 unitless\n,
	k3	-2.4230 unitless\n,
	kr	0.0007044 K/uV\n,

• Downwelling Longwave Hemispheric Irradiance, Shaded Pyrgeometer, Standard
  Deviation(down_long_hemisp_shaded_std)
• Shortwave Direct Normal Irradiance, Pyrheliometer, Maxima(short_direct_normal_max)
• Instantaneous Upwelling Pyrgeometer Case Thermistor Temperature, Pyrgeometer(inst_up_long_case_temp)
• Shortwave Direct Normal Irradiance, Pyrheliometer, Minima(short_direct_normal_min)
• Downwelling Longwave Hemispheric Irradiance, Shaded Pyrgeometer, Maxima(down_long_hemisp_shaded_max)
• Upwelling Longwave Hemispheric Net Infrared(up_long_netir)
• Instantaneous Downwelling Pyrgeometer Case Thermistor Temperature, Shaded
  Pyrgeometer(inst_down_long_shaded_case_temp)
• Shortwave Direct Normal Irradiance, Pyrheliometer(short_direct_normal)
• Downwelling Longwave Hemispheric Net Infrared(down_long_netir)
• Instantaneous Downwelling Pyrgeometer Dome Thermistor Temperature, Shaded
  Pyrgeometer(inst_down_long_shaded_dome_temp)
• Downwelling Longwave Hemispheric Irradiance, Shaded Pyrgeometer(down_long_hemisp_shaded)
• Upwelling (10 meter) Longwave Hemispheric Irradiance, Ventilated Pyrgeometer(up_long_hemisp)
• Upwelling (10 meter) Longwave Hemispheric Irradiance, Ventilated Pyrgeometer,
  Maxima(up_long_hemisp_max)
• Upwelling (10 meter) Longwave Hemispheric Irradiance, Ventilated Pyrgeometer,
  Standard Deviation(up_long_hemisp_std)
• Instantaneous Upwelling Pyrgeometer Dome Thermistor Temperature, Pyrgeometer(inst_up_long_dome_temp)
• Upwelling (10 meter) Longwave Hemispheric Irradiance, Ventilated Pyrgeometer,
  Minima(up_long_hemisp_min)
• Shortwave Direct Normal Irradiance, Pyrheliometer, Standard Deviation(short_direct_normal_std)
• Downwelling Longwave Hemispheric Irradiance, Shaded Pyrgeometer, Minima(down_long_hemisp_shaded_min)

• Instantaneous Downwelling Pyrgeometer Thermopile Voltage, Shaded Pyrgeometer(inst_down_long_hemisp_shaded_tp)
• Instantaneous Upwelling Pyrgeometer Thermopile Voltage, Pyrgeometer(inst_up_long_hemisp_tp)
• Instantaneous Direct Normal Shortwave Irradiance, Pyrheliometer Thermopile
  Voltage(inst_direct_normal)
• Instantaneous Upwelling Pyrgeometer Dome Thermistor Resistance, Pyrgeometer(inst_up_long_dome_resist)
• Instantaneous Upwelling Pyrgeometer Case Thermistor Resistance, Pyrgeometer(inst_up_long_case_resist)
• Instantaneous Downwelling Pyrgeometer Case Thermistor Resistance, Shaded
  Pyrgeometer(inst_down_long_shaded_case_resist)
• Instantaneous Downwelling Pyrgeometer Dome Thermistor Resistance, Shaded
  Pyrgeometer(inst_down_long_shaded_dome_resist)

• Raw data stream - documentation not supported(Raw data stream - documentation not supported)

SGP/ECOR/E16 - Data Missing

The data was missing during the stated period.

• altitude above sea levelaltunits(alt)
• number of samples with \IRGA hardware problem\ flag(n_bad_irga)
• north latitude for all the input platforms.(lat)
• rotated covariance ut(cvar_rot_ut)
• latent heat flux(lv_e)
• number of valid u samples(n_good_u)
• number of samples with bad sonic status flag(n_bad_son_ic)
• 0=real or 1=dummy value of lv(real_lv)
• variance of variable u(var_u)
• covariance wq(cvar_wq)
• 0=real or 1=dummy value of rho(real_rho)
• vw covariance(cvar_vw)
• corrected sensible heat flux(h)
• standard deviation of wind elevation angle(std_elev)
• variance of variable w(var_w)
• wT covariance(cvar_wt)
• Time offset of tweaks from base_time(time_offset)
• mean w (vertical) wind component(mean_w)
• number of valid t samples(n_good_t)
• covariance vq(cvar_vq)
• Retrieved water vapor density profile(rho)
• rotated covariance wt(cvar_rot_wt)
• variance of variable c(var_c)
• vector averaged wind speed(wind_spd)
• covariance vc(cvar_vc)
• momentum flux (dynamic)(k)
• skewness of variable t(skew_t)
• standard deviation of wind direction(std_wind_dir)
• covariance of tc(cvar_tc)
• number of valid q samples(n_good_q)
• number of v samples removed due to spikes(n_spk_v)
• vertical (elevation) wind angle(elev)
• kurtosis of variable u(kurt_u)
• kurtosis of variable c(kurt_c)
• Time offset from base_time(base_time)
• rotated covariance uq(cvar_rot_uq)
• mixing ratio(mr)
• rotated mean v(mean_rot_v)
• number of valid c samples(n_good_c)
• covariance vt(cvar_vt)
• number of bad or out of range v samples(n_bad_v)
• number of bad or out of range u samples(n_bad_u)
• mean value of out of range values and spikes of t -9999 if no spikes(mean_spk_t)
• variance of variable v(var_v)
• mean co2 concentration (c)(mean_c)
• mean water vapor concentration (q)(mean_q)
• rotated mean w(mean_rot_w)
• rotated covariance vt(cvar_rot_vt)
• covariance wc(cvar_wc)
• number of w samples removed due to spikes(n_spk_w)
• skewness of variable q(skew_q)
• covariance of tq(cvar_tq)
• mean horizontal wind speed(mean_rot_u)
• mean value of \spike\ u samples(mean_spk_u)
• number of valid w samples(n_good_w)
• number of t samples removed due to spikes(n_spk_t)
• average atmospheric pressure (IGRA internal sensor)(atm_pres)
• rotated covariance vq(cvar_rot_vq)
• average temperature (IGRA internal sensor)(temp_irga)
• number of c samples removed due to spikes(n_spk_c)
• number of u samples removed due to spikes(n_spk_u)
• covariance ut(cvar_ut)
• friction velocity(ustar)
• covariance of qc(cvar_qc)
• rotated variance v(var_rot_v)
• vector averaged wind direction(wind_dir)
• variance of variable t(var_t)
• mean value of \spike\ v samples(mean_spk_v)
• kurtosis of variable w(kurt_w)
• skewness of variable c(skew_c)
• mean value of out of range values and spikes of c -9999 if no spikes(mean_spk_c)
• number of bad or out of range w samples(n_bad_w)
• mean value of out of range values and spikes of q -9999 if no spikes(mean_spk_q)
• number of q samples removed due to spikes(n_spk_q)
• Vertical angle of wind(phi)
• variance of variable q(var_q)
• rotated covariance uc(cvar_rot_uc)
• skewness of variable w(skew_w)
• number of bad or out of range q samples(n_bad_q)
• kurtosis of variable v(kurt_v)
• rotated variance u(var_rot_u)
• number of bad or out of range t samples(n_bad_t)
• 0=real or 1=dummy value of cp(real_cp)
• average voltage of IRGA cooler(mean_cooler)
• Down-boom wind velocity (u)(mean_u)
• rotated covariance uw(cvar_rot_uw)
• Cross-boom wind velocity (v)(mean_v)
• kurtosis of variable q(kurt_q)
• number of bad or out of range c samples(n_bad_c)
• rotated variance w(var_rot_w)
• mean value of \spike\ w samples(mean_spk_w)
• kurtosis of variable t(kurt_t)
• rotated covariance vc(cvar_rot_vc)
• uw covariance(cvar_uw)
• specific heat of moist air(cp)
• Time offset from midnight of date of file. For CO data, this is identical to
  time_offset and is included for compatibility.(time)
• skewness of variable u(skew_u)
• covariance uq(cvar_uq)
• rotated covariance uv(cvar_rot_uv)
• east longitude for all the input platforms.(lon)
• latent heat of vaporization(lv)
• mean sonic temperature (t), i.e. virtual temperature(mean_t)
• 0=real or 1=dummy value of mr(real_mr)
• skewness of variable v(skew_v)
• rotated covariance wc(cvar_rot_wc)
• covariance uv(cvar_uv)
• covariance uc(cvar_uc)
• number of samples with IRGA optical path blocked flag(n_bad_irga_light)
• rotated covariance wq(cvar_rot_wq)
• rotated covariance vw(cvar_rot_vw)
• number of valid v samples(n_good_v)
• CO2 flux(fc)

SGP/ECOR/E16 - Sonic serial communication errors caused incorrect fluxes

Communication problem on the serial connection to the SONIC 
              caused data dropouts and subsequent data corruption.  In entering 
              the ECOR Linux box through the sonic serial port, the serial port 
              or the Linux driver handling it (likely the latter) sometimes 
              drops entire fields (one or more) within a line of raw sonic 
              data.  When that happens, the ECOR programming can not properly 
              parse the data (if it's not there to parse) and so the flux and 
              mean measurements come out as garbage in the 30 minute ECOR data 
              that is collected for ingest.

• latent heat flux(lv_e)
• corrected sensible heat flux(h)
• average atmospheric pressure (IGRA internal sensor)(atm_pres)
• mean co2 concentration (c)(mean_c)
• average temperature (IGRA internal sensor)(temp_irga)
• mean water vapor concentration (q)(mean_q)
• CO2 flux(fc)

SGP/ECOR/E16  - Data Missing

Data is missing because of the failure of the LINUX box data acquisition system.

• altitude above sea levelaltunits(alt)
• number of samples with \IRGA hardware problem\ flag(n_bad_irga)
• north latitude for all the input platforms.(lat)
• rotated covariance ut(cvar_rot_ut)
• latent heat flux(lv_e)
• number of valid u samples(n_good_u)
• number of samples with bad sonic status flag(n_bad_son_ic)
• 0=real or 1=dummy value of lv(real_lv)
• variance of variable u(var_u)
• covariance wq(cvar_wq)
• 0=real or 1=dummy value of rho(real_rho)
• vw covariance(cvar_vw)
• corrected sensible heat flux(h)
• standard deviation of wind elevation angle(std_elev)
• variance of variable w(var_w)
• wT covariance(cvar_wt)
• Time offset of tweaks from base_time(time_offset)
• mean w (vertical) wind component(mean_w)
• number of valid t samples(n_good_t)
• covariance vq(cvar_vq)
• Retrieved water vapor density profile(rho)
• rotated covariance wt(cvar_rot_wt)
• variance of variable c(var_c)
• vector averaged wind speed(wind_spd)
• covariance vc(cvar_vc)
• momentum flux (dynamic)(k)
• skewness of variable t(skew_t)
• standard deviation of wind direction(std_wind_dir)
• covariance of tc(cvar_tc)
• number of valid q samples(n_good_q)
• number of v samples removed due to spikes(n_spk_v)
• vertical (elevation) wind angle(elev)
• kurtosis of variable u(kurt_u)
• kurtosis of variable c(kurt_c)
• Time offset from base_time(base_time)
• rotated covariance uq(cvar_rot_uq)
• mixing ratio(mr)
• rotated mean v(mean_rot_v)
• number of valid c samples(n_good_c)
• covariance vt(cvar_vt)
• number of bad or out of range v samples(n_bad_v)
• number of bad or out of range u samples(n_bad_u)
• mean value of out of range values and spikes of t -9999 if no spikes(mean_spk_t)
• variance of variable v(var_v)
• mean co2 concentration (c)(mean_c)
• mean water vapor concentration (q)(mean_q)
• rotated mean w(mean_rot_w)
• rotated covariance vt(cvar_rot_vt)
• covariance wc(cvar_wc)
• number of w samples removed due to spikes(n_spk_w)
• skewness of variable q(skew_q)
• covariance of tq(cvar_tq)
• mean horizontal wind speed(mean_rot_u)
• mean value of \spike\ u samples(mean_spk_u)
• number of valid w samples(n_good_w)
• number of t samples removed due to spikes(n_spk_t)
• average atmospheric pressure (IGRA internal sensor)(atm_pres)
• rotated covariance vq(cvar_rot_vq)
• average temperature (IGRA internal sensor)(temp_irga)
• number of c samples removed due to spikes(n_spk_c)
• number of u samples removed due to spikes(n_spk_u)
• covariance ut(cvar_ut)
• friction velocity(ustar)
• covariance of qc(cvar_qc)
• rotated variance v(var_rot_v)
• vector averaged wind direction(wind_dir)
• variance of variable t(var_t)
• mean value of \spike\ v samples(mean_spk_v)
• kurtosis of variable w(kurt_w)
• skewness of variable c(skew_c)
• mean value of out of range values and spikes of c -9999 if no spikes(mean_spk_c)
• number of bad or out of range w samples(n_bad_w)
• mean value of out of range values and spikes of q -9999 if no spikes(mean_spk_q)
• number of q samples removed due to spikes(n_spk_q)
• Vertical angle of wind(phi)
• variance of variable q(var_q)
• rotated covariance uc(cvar_rot_uc)
• skewness of variable w(skew_w)
• number of bad or out of range q samples(n_bad_q)
• kurtosis of variable v(kurt_v)
• rotated variance u(var_rot_u)
• number of bad or out of range t samples(n_bad_t)
• 0=real or 1=dummy value of cp(real_cp)
• average voltage of IRGA cooler(mean_cooler)
• Down-boom wind velocity (u)(mean_u)
• rotated covariance uw(cvar_rot_uw)
• Cross-boom wind velocity (v)(mean_v)
• kurtosis of variable q(kurt_q)
• number of bad or out of range c samples(n_bad_c)
• rotated variance w(var_rot_w)
• mean value of \spike\ w samples(mean_spk_w)
• kurtosis of variable t(kurt_t)
• rotated covariance vc(cvar_rot_vc)
• uw covariance(cvar_uw)
• specific heat of moist air(cp)
• Time offset from midnight of date of file. For CO data, this is identical to
  time_offset and is included for compatibility.(time)
• skewness of variable u(skew_u)
• covariance uq(cvar_uq)
• rotated covariance uv(cvar_rot_uv)
• east longitude for all the input platforms.(lon)
• latent heat of vaporization(lv)
• mean sonic temperature (t), i.e. virtual temperature(mean_t)
• 0=real or 1=dummy value of mr(real_mr)
• skewness of variable v(skew_v)
• rotated covariance wc(cvar_rot_wc)
• covariance uv(cvar_uv)
• covariance uc(cvar_uc)
• number of samples with IRGA optical path blocked flag(n_bad_irga_light)
• rotated covariance wq(cvar_rot_wq)
• rotated covariance vw(cvar_rot_vw)
• number of valid v samples(n_good_v)
• CO2 flux(fc)

SGP/SIRS/E16 - NIP Instrument Failure

The short_direct_normal dropped below MIN value on 4/28/06 resulting in failure of the 
up_long_hemisp started 3-component test.  No data are available from 20060428.1900 through 
20060503.21:39.  When the data returned, the short_direct normal fluctuated wildly 
throughout the day, and down_long_hemisp & up_long_hemisp failed the 3-component test.  
Technicians determined the NIP had failed and replaced it 5/12.

Use component method ((global - diffuse)/cos(ZA)) to calculate direct normal. For more 
information on this summation method please see section 7.2 (Theory of Operation) of the 
SIRS Handbook:
http://www.arm.gov/publications/tech_reports/handbooks/sirs_handbook.pdf

• Shortwave Direct Normal Irradiance, Pyrheliometer(short_direct_normal)
• Shortwave Direct Normal Irradiance, Pyrheliometer, Standard Deviation(short_direct_normal_std)
• Shortwave Direct Normal Irradiance, Pyrheliometer, Maxima(short_direct_normal_max)
• Shortwave Direct Normal Irradiance, Pyrheliometer, Minima(short_direct_normal_min)

• Instantaneous Direct Normal Shortwave Irradiance, Pyrheliometer Thermopile
  Voltage(inst_direct_normal)

SGP/ECOR/E16 - LI-7500 Pressure and Temperature missing

The pressure and temperature measurements were not recorded; the LI-7500 serial datastream 
was not being captured by the ECOR system because of a serial port failure.

Some degradation of the latent and sensible heat fluxes may have occurred during high 
summer temperatures.  The error in the fluxes would be no more than 5 to 10% of the 
measurement, still well within the measurement error of the system.

• latent heat of vaporization(lv)
• latent heat flux(lv_e)
• corrected sensible heat flux(h)
• average atmospheric pressure (IGRA internal sensor)(atm_pres)
• Retrieved water vapor density profile(rho)
• average temperature (IGRA internal sensor)(temp_irga)
• specific heat of moist air(cp)

SGP/SIRS/E13 - Reprocessed: Longwave Calibration error

Modified pyrgeometer calibration procedures were implemented beginning in December 2003. 
These modified procedures introduced a calibration bias in the longwave data. The previous 
procedures were re-implemented at all sites between December 2005 and February 2006 to 
restore proper calibrations. 

The data collected while the incorrect procedures were in place have been reprocessed to 
remove the calibration bias.  The reprocessed 60 second averaged data are based on 3 
instantaneous 20 second data records rather than on 60 1 second instantaneous data records. 
Still, these data are considered far superior to the originally processed data. The 
reprocessed data were archived in October 2006.

• Upwelling Longwave Hemispheric Net Infrared(up_long_netir)
• Downwelling Longwave Hemispheric Irradiance, Shaded Pyrgeometer(down_long_hemisp_shaded)
• Upwelling (10 meter) Longwave Hemispheric Irradiance, Ventilated Pyrgeometer(up_long_hemisp)
• Downwelling Longwave Hemispheric Net Infrared(down_long_netir)

SGP/SIRS/E16 - Reprocessed: Longwave Calibration error

Modified pyrgeometer calibration procedures were implemented beginning in July 2003. These 
modified procedures introduced a calibration bias in the longwave data. The previous 
procedures were re-implemented at all sites between December 2005 and February 2006 to 
restore proper calibrations. 

The data collected while the incorrect procedures were in place have been reprocessed to 
remove the calibration bias.  The reprocessed 60 second averaged data are based on 3 
instantaneous 20 second data records rather than on 60 1 second instantaneous data records. 
Still, these data are considered far superior to the originally processed data. The 
reprocessed data were archived in October 2006.

• Upwelling Longwave Hemispheric Net Infrared(up_long_netir)
• Downwelling Longwave Hemispheric Net Infrared(down_long_netir)
• Upwelling (10 meter) Longwave Hemispheric Irradiance, Ventilated Pyrgeometer(up_long_hemisp)
• Downwelling Longwave Hemispheric Irradiance, Shaded Pyrgeometer(down_long_hemisp_shaded)

SGP/ECOR/E16 - Latent Heat and CO2 Fluxes Incorrect

The LI-7500 CO2/H2O water vapor sensor was removed during this period.

• latent heat flux(lv_e)
• covariance of qc(cvar_qc)
• kurtosis of variable c(kurt_c)
• rotated covariance uq(cvar_rot_uq)
• rotated covariance vc(cvar_rot_vc)
• number of valid c samples(n_good_c)
• specific heat of moist air(cp)
• covariance wq(cvar_wq)
• 0=real or 1=dummy value of rho(real_rho)
• skewness of variable c(skew_c)
• mean value of out of range values and spikes of c -9999 if no spikes(mean_spk_c)
• covariance uq(cvar_uq)
• mean value of out of range values and spikes of q -9999 if no spikes(mean_spk_q)
• number of q samples removed due to spikes(n_spk_q)
• mean co2 concentration (c)(mean_c)
• rotated covariance uc(cvar_rot_uc)
• mean water vapor concentration (q)(mean_q)
• variance of variable q(var_q)
• number of bad or out of range q samples(n_bad_q)
• covariance vq(cvar_vq)
• Retrieved water vapor density profile(rho)
• rotated covariance wc(cvar_rot_wc)
• covariance wc(cvar_wc)
• 0=real or 1=dummy value of cp(real_cp)
• skewness of variable q(skew_q)
• covariance of tq(cvar_tq)
• covariance uc(cvar_uc)
• variance of variable c(var_c)
• rotated covariance wq(cvar_rot_wq)
• covariance vc(cvar_vc)
• rotated covariance vq(cvar_rot_vq)
• number of valid q samples(n_good_q)
• kurtosis of variable q(kurt_q)
• CO2 flux(fc)
• covariance of tc(cvar_tc)
• number of bad or out of range c samples(n_bad_c)
• number of c samples removed due to spikes(n_spk_c)

SGP/ECOR/E16 - Missing Data

The ECOR data was missing during the stated period.

• altitude above sea levelaltunits(alt)
• number of samples with \IRGA hardware problem\ flag(n_bad_irga)
• north latitude for all the input platforms.(lat)
• rotated covariance ut(cvar_rot_ut)
• latent heat flux(lv_e)
• number of valid u samples(n_good_u)
• number of samples with bad sonic status flag(n_bad_son_ic)
• 0=real or 1=dummy value of lv(real_lv)
• variance of variable u(var_u)
• covariance wq(cvar_wq)
• 0=real or 1=dummy value of rho(real_rho)
• vw covariance(cvar_vw)
• corrected sensible heat flux(h)
• standard deviation of wind elevation angle(std_elev)
• variance of variable w(var_w)
• wT covariance(cvar_wt)
• Time offset of tweaks from base_time(time_offset)
• mean w (vertical) wind component(mean_w)
• number of valid t samples(n_good_t)
• covariance vq(cvar_vq)
• Retrieved water vapor density profile(rho)
• rotated covariance wt(cvar_rot_wt)
• variance of variable c(var_c)
• vector averaged wind speed(wind_spd)
• covariance vc(cvar_vc)
• momentum flux (dynamic)(k)
• skewness of variable t(skew_t)
• standard deviation of wind direction(std_wind_dir)
• covariance of tc(cvar_tc)
• number of valid q samples(n_good_q)
• number of v samples removed due to spikes(n_spk_v)
• vertical (elevation) wind angle(elev)
• kurtosis of variable u(kurt_u)
• kurtosis of variable c(kurt_c)
• Time offset from base_time(base_time)
• rotated covariance uq(cvar_rot_uq)
• mixing ratio(mr)
• rotated mean v(mean_rot_v)
• number of valid c samples(n_good_c)
• covariance vt(cvar_vt)
• number of bad or out of range v samples(n_bad_v)
• number of bad or out of range u samples(n_bad_u)
• mean value of out of range values and spikes of t -9999 if no spikes(mean_spk_t)
• variance of variable v(var_v)
• mean co2 concentration (c)(mean_c)
• mean water vapor concentration (q)(mean_q)
• rotated mean w(mean_rot_w)
• rotated covariance vt(cvar_rot_vt)
• covariance wc(cvar_wc)
• number of w samples removed due to spikes(n_spk_w)
• skewness of variable q(skew_q)
• covariance of tq(cvar_tq)
• mean horizontal wind speed(mean_rot_u)
• mean value of \spike\ u samples(mean_spk_u)
• number of valid w samples(n_good_w)
• number of t samples removed due to spikes(n_spk_t)
• average atmospheric pressure (IGRA internal sensor)(atm_pres)
• rotated covariance vq(cvar_rot_vq)
• average temperature (IGRA internal sensor)(temp_irga)
• number of c samples removed due to spikes(n_spk_c)
• number of u samples removed due to spikes(n_spk_u)
• covariance ut(cvar_ut)
• friction velocity(ustar)
• covariance of qc(cvar_qc)
• rotated variance v(var_rot_v)
• vector averaged wind direction(wind_dir)
• variance of variable t(var_t)
• mean value of \spike\ v samples(mean_spk_v)
• kurtosis of variable w(kurt_w)
• skewness of variable c(skew_c)
• mean value of out of range values and spikes of c -9999 if no spikes(mean_spk_c)
• number of bad or out of range w samples(n_bad_w)
• mean value of out of range values and spikes of q -9999 if no spikes(mean_spk_q)
• number of q samples removed due to spikes(n_spk_q)
• Vertical angle of wind(phi)
• variance of variable q(var_q)
• rotated covariance uc(cvar_rot_uc)
• skewness of variable w(skew_w)
• number of bad or out of range q samples(n_bad_q)
• kurtosis of variable v(kurt_v)
• rotated variance u(var_rot_u)
• number of bad or out of range t samples(n_bad_t)
• 0=real or 1=dummy value of cp(real_cp)
• average voltage of IRGA cooler(mean_cooler)
• Down-boom wind velocity (u)(mean_u)
• rotated covariance uw(cvar_rot_uw)
• Cross-boom wind velocity (v)(mean_v)
• kurtosis of variable q(kurt_q)
• number of bad or out of range c samples(n_bad_c)
• rotated variance w(var_rot_w)
• mean value of \spike\ w samples(mean_spk_w)
• kurtosis of variable t(kurt_t)
• rotated covariance vc(cvar_rot_vc)
• uw covariance(cvar_uw)
• specific heat of moist air(cp)
• Time offset from midnight of date of file. For CO data, this is identical to
  time_offset and is included for compatibility.(time)
• skewness of variable u(skew_u)
• covariance uq(cvar_uq)
• rotated covariance uv(cvar_rot_uv)
• east longitude for all the input platforms.(lon)
• latent heat of vaporization(lv)
• mean sonic temperature (t), i.e. virtual temperature(mean_t)
• 0=real or 1=dummy value of mr(real_mr)
• skewness of variable v(skew_v)
• rotated covariance wc(cvar_rot_wc)
• covariance uv(cvar_uv)
• covariance uc(cvar_uc)
• number of samples with IRGA optical path blocked flag(n_bad_irga_light)
• rotated covariance wq(cvar_rot_wq)
• rotated covariance vw(cvar_rot_vw)
• number of valid v samples(n_good_v)
• CO2 flux(fc)