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)
• condensation pressure(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)
• Water vapor density (q)(mean_q)
• variance of 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 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/EBBR/E13 - Automatic Exchange Mechanism Failure

The AEM was stuck in the home_15 position or reported near zero
home signals during much of the indicated period.

The Bowen ratio and latent and sensible heat fluxes were incorrect 
when the AEM was not operating properly; the periods of incorrect
data can be determined from the home signal values.

On 7/14/04 the AEM was replaced.

• Left air temperature(tair_l)
• Right air temperature(tair_r)

• Temperature of bottom humidity sensor chamber(thum_bot)
• top vapor pressure(vp_top)
• top air temperature(tair_top)
• Temperature of the top humidity chamber(thum_top)
• bottom vapor pressure(vp_bot)
• Bottom humidity(hum_bot)
• Top humidity(hum_top)
• bottom air temperature(tair_bot)

• Bottom humidity(hum_bot)
• ratio of sensible/latent heat fluxes (Bowen ratio)(bowen)
• bottom vapor pressure(vp_bot)
• Temperature of bottom humidity sensor chamber(thum_bot)
• Temperature of the top humidity chamber(thum_top)
• latent heat flux(e)
• h(h)
• bottom air temperature(tair_bot)
• top air temperature(tair_top)
• Top humidity(hum_top)
• top vapor pressure(vp_top)

SGP/ECOR/E1 - Missing data

Data are missing and unrecoverable.

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

SGP/ECOR/E24 - Reprocess: Sonic analog input failure

All the data based on H2O and CO2 "analog signals" (latent heat flux, CO2 flux, etc.) are 
incorrect for the period of 10:00 June 4, 2004 to 17:30 Sept. 16, 2004 due to to failure 
in sonic anemometer analog input circuitry.  Correct water vapor density and CO2 
concentration data are stored in IRGA (infrared gas analyzer) raw data files (sgpecorE24.00 
datastream); that data may be used to re-calculate fluxes.

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

SGP/EBBR/E13 - Net Radiation Incorrect, Fluxes Incorrect

Rain entered the net radiometer through a crack in the upper dome and
settled in the bottom dome.  This caused too large net radiation measurements
during the following daylight hours, until the domes were replaced and dried out the same 
day.

• Net radiation(mv_q)

• net radiation(q)

• net radiation(q)
• latent heat flux(e)
• h(h)

SGP/EBBR/E13 - AEM Failure, Fluxes Incorrect

The AEM failed.  Sensible and latent heat fluxes were incorrect, as well as gradient 
measurements.

• Left air temperature(tair_l)
• Right air temperature(tair_r)

• Temperature of bottom humidity sensor chamber(thum_bot)
• top vapor pressure(vp_top)
• top air temperature(tair_top)
• Temperature of the top humidity chamber(thum_top)
• bottom vapor pressure(vp_bot)
• Bottom humidity(hum_bot)
• Top humidity(hum_top)
• bottom air temperature(tair_bot)

• Bottom humidity(hum_bot)
• ratio of sensible/latent heat fluxes (Bowen ratio)(bowen)
• bottom vapor pressure(vp_bot)
• Temperature of bottom humidity sensor chamber(thum_bot)
• Temperature of the top humidity chamber(thum_top)
• latent heat flux(e)
• h(h)
• bottom air temperature(tair_bot)
• top air temperature(tair_top)
• Top humidity(hum_top)
• top vapor pressure(vp_top)

SGP/ECOR/E24 - Missing data

Data are missing and unrecoverable.

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

SGP/ECOR/E1 - System time drift

Network Time Protocol (NTP) client was not working at the ECOR computer
resulting in an ECOR system time drift of about 6s per hour. Time 
adjustment by +15 minutes occurred at 17:35:25, Oct. 25, 2004.

• Raw data stream - documentation not supported(raw)

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

SGP/ECOR/E16 - Failed IRGA

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 to 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)
• condensation pressure(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)
• Water vapor density (q)(mean_q)
• variance of 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 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)

SGP/EBBR/E13 - 6 Month Checks

Many measurements were incorrect while the AEM was positioned with both aspirators at the 
same height for comparison checks.

• Temperature of left humidity sensor chamber(rr_thum_l)
• Left air temperature(tair_l)
• Temperature of right humidity sensor chamber(rr_thum_r)
• Right air temperature(tair_r)
• Left relative humidity(mv_hum_l)
• Right relative humidity(mv_hum_r)

• top air temperature(tair_top)
• Temperature of the top humidity chamber(thum_top)
• Bottom humidity(hum_bot)
• bottom vapor pressure(vp_bot)
• Temperature of bottom humidity sensor chamber(thum_bot)
• top vapor pressure(vp_top)
• Top humidity(hum_top)
• bottom air temperature(tair_bot)

• Bottom humidity(hum_bot)
• ratio of sensible/latent heat fluxes (Bowen ratio)(bowen)
• Temperature of bottom humidity sensor chamber(thum_bot)
• h(h)
• Top humidity(hum_top)
• top air temperature(tair_top)
• top vapor pressure(vp_top)
• bottom vapor pressure(vp_bot)
• Temperature of the top humidity chamber(thum_top)
• latent heat flux(e)
• bottom air temperature(tair_bot)

SGP/ECOR/E16 - Missing data

Data are missing and unrecoverable.

• Dummy altitude for Zeb(alt)
• number of samples with \IRGA hardware problem\ flag(n_bad_irga)
• lat(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)
• h(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)
• Vertical wind velocity (w)(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 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)
• 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)
• Water vapor density (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)
• variance of v(var_rot_v)
• vector averaged wind direction(wind_dir)
• variance of 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 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)
• variance of 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)
• variance of 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)
• condensation pressure(cp)
• time(time)
• skewness of variable u(skew_u)
• covariance uq(cvar_uq)
• rotated covariance uv(cvar_rot_uv)
• lon(lon)
• latent heat of vaporization(lv)
• Virtual temperature (T)(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/EBBR/E13  - Wind Speed Frozen Stopped By Ice Storm

An ice storm froze the wind speed sensor to a stopped condition.

The wind speed and residual wind speed measurements are incorrect.

This sensor failure does not affect the sensible and latent heat fluxes.

• scalar wind speed(wind_s)

• vector wind speed(res_ws)
• scalar wind speed(wind_s)

• scalar wind speed(wind_s)
• vector wind speed(res_ws)

SGP/EBBR/E13  - Wind Direction Frozen Stopped By Ice Storm

The wind direction sensor was frozen stopped by ice from a storm.  
The wind direction, sigma_wd, and residual wind speed measurements 
are incorrect.

• Wind direction (relative to true north)(mv_wind_d)

• vector wind speed(res_ws)
• wind direction (relative to true north)(wind_d)
• standard deviation of wind direction (sigma theta)(sigma_wd)

• standard deviation of wind direction (sigma theta)(sigma_wd)
• wind direction (relative to true north)(wind_d)
• vector wind speed(res_ws)

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)
• condensation pressure(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)
• Water vapor density (q)(mean_q)
• variance of 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 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/ECOR/E24  - 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
24      2004    03      19      00      00
24      2004    03      20      00      00
24      2004    03      21      00      00
24      2004    03      23      00      00
24      2004    03      24      00      00
24      2004    03      25      00      00
24      2004    03      26      00      00
24      2004    03      27      00      00
24      2004    03      28      00      00
24      2004    03      29      00      00
24      2004    03      31      00      00
24      2004    04      01      00      00
24      2004    04      02      00      00
24      2004    04      03      00      00
24      2004    04      16      00      00
24      2004    04      17      00      00
24      2004    04      18      00      00
24      2004    04      22      00      00
24      2004    04      23      00      00
24      2004    04      30      00      00
24      2004    05      30      00      00
24      2004    05      31      00      00
24      2004    06      01      00      00
24      2004    06      02      00      00
24      2004    06      03      00      00
24      2004    06      05      00      00
24      2004    06      06      00      00
24      2004    06      07      00      00
24      2004    06      08      00      00
24      2004    06      12      00      00
24      2004    06      13      00      00
24      2004    06      14      00      00
24      2004    06      17      00      00
24      2004    06      18      00      00
24      2004    06      19      00      00
24      2004    06      20      00      00
24      2004    06      22      00      00
24      2004    06      23      00      00
24      2004    06      24      00      00
24      2004    06      25      00      00
24      2004    06      26      00      00
24      2004    06      27      00      00
24      2004    06      28      00      00
24      2004    06      29      00      00
24      2004    06      30      00      00
24      2004    07      01      00      00
24      2004    07      02      00      00
24      2004    07      05      00      00
24      2004    07      06      00      00
24      2004    07      07      00      00
24      2004    07      11      00      00
24      2004    07      12      00      00
24      2004    07      13      00      00
24      2004    07      14      00      00
24      2004    07      16      00      00
24      2004    07      17      00      00
24      2004    07      18      00      00
24      2004    07      19      00      00
24      2004    07      20      00      00
24      2004    07      21      00      00
24      2004    07      22      00      00
24      2004    07      25      00      00
24      2004    07      26      00      00
24      2004    07      27      00      00
24      2004    07      28      00      00
24      2004    07      29      00      00
24      2004    08      01      00      00
24      2004    08      02      00      00
24      2004    08      03      00      00
24      2004    08      05      00      00
24      2004    08      06      00      00
24      2004    08      07      00      00
24      2004    08      08      00      00
24      2004    08      09      00      00
24      2004    08      20      00      00
24      2004    08      21      00      00
24      2004    08      22      00      00
24      2004    08      25      00      00
24      2004    08      26      00      00
24      2004    08      27      00      00
24      2004    08      28      00      00
24      2004    08      29      00      00
24      2004    08      30      00      00
24      2004    08      31      00      00
24      2004    09      01      00      00
24      2004    09      04      00      00
24      2004    09      05      00      00
24      2004    09      06      00      00
24      2004    09      07      00      00
24      2004    09      08      00      00
24      2004    09      09      00      00
24      2004    09      10      00      00
24      2004    09      11      00      00
24      2004    09      13      00      00
24      2004    09      14      00      00
24      2004    09      17      00      00
24      2004    09      18      00      00
24      2004    09      19      00      00
24      2004    09      22      00      00
24      2004    09      23      00      00
24      2004    09      24      00      00
24      2004    09      25      00      00
24      2004    09      26      00      00
24      2004    09      27      00      00
24      2004    09      29      00      00
24      2004    09      30      00      00
24      2004    10      01      00      00
24      2004    10      02      00      00
24      2004    10      05      00      00
24      2004    10      06      00      00
24      2004    10      07      00      00
24      2004    12      11      00      00
24      2004    12      12      00      00
24      2004    12      13      00      00
24      2004    12      14      00      00
24      2004    12      15      00      00
24      2004    12      16      00      00
24      2004    12      17      00      00
24      2004    12      18      00      00
24      2004    12      19      00      00
24      2004    12      20      00      00
24      2004    12      21      00      00
24      2004    12      24      00      00
24      2004    12      26      00      00
24      2004    12      27      00      00
24      2004    12      28      00      00
24      2004    12      29      00      00
24      2004    12      31      00      00
24      2005    01      01      00      00
24      2005    01      02      00      00
24      2005    01      04      00      00
24      2005    01      07      00      00
24      2005    01      09      00      00
24      2005    01      10      00      00
24      2005    01      11      00      00
24      2005    01      15      00      00
24      2005    01      17      00      00
24      2005    01      18      00      00
24      2005    01      20      00      00
24      2005    01      22      00      00
24      2005    01      25      00      00
24      2005    01      27      00      00
24      2005    01      30      00      00
24      2005    02      03      00      00
24      2005    02      05      00      00
24      2005    02      06      00      00
24      2005    02      07      00      00
24      2005    02      10      00      00
24      2005    02      11      00      00
24      2005    02      12      00      00
24      2005    02      14      00      00
24      2005    02      17      00      00
24      2005    02      18      00      00
24      2005    02      19      00      00
24      2005    02      20      00      00
24      2005    02      21      00      00
24      2005    02      22      00      00
24      2005    02      23      00      00
24      2005    02      24      00      00
24      2005    02      25      00      00
24      2005    02      26      00      00
24      2005    02      28      00      00
24      2005    03      04      00      00
24      2005    03      05      00      00
24      2005    03      06      00      00
24      2005    03      07      00      00
24      2005    03      09      00      00
24      2005    03      11      00      00
24      2005    03      12      00      00
24      2005    03      13      00      00
24      2005    03      14      00      00
24      2005    03      15      00      00
24      2005    03      20      00      00
24      2005    03      21      00      00
24      2005    03      23      00      00
24      2005    03      24      00      00

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

SGP/EBBR/E13 - Net Radiometer Tilted Half Degree West

The net radiation daily peak on sunny days occured 1/2 hour after the net radiation peak 
at E2, E9, and the SIRS because the sensor was tipped to the west about 1/2 degree.

• Net radiation(mv_q)

• net radiation(q)

• net radiation(q)
• latent heat flux(e)
• h(h)

SGP/EBBR/E13 - Sensible and Latent Heat Fluxes Incorrect (AEM failure)

The AEM was stuck in the home 30 position most of this period.

Therefore, the sensible and latent heat fluxes are incorrect during most of this period.

• Left air temperature(tair_l)
• Right air temperature(tair_r)

• Temperature of bottom humidity sensor chamber(thum_bot)
• top vapor pressure(vp_top)
• top air temperature(tair_top)
• Temperature of the top humidity chamber(thum_top)
• bottom vapor pressure(vp_bot)
• bottom air temperature(tair_bot)

• Bottom humidity(hum_bot)
• ratio of sensible/latent heat fluxes (Bowen ratio)(bowen)
• bottom vapor pressure(vp_bot)
• Temperature of bottom humidity sensor chamber(thum_bot)
• Temperature of the top humidity chamber(thum_top)
• latent heat flux(e)
• h(h)
• bottom air temperature(tair_bot)
• top air temperature(tair_top)
• Top humidity(hum_top)
• top vapor pressure(vp_top)

SGP/EBBR/E13 - Improved EBBR CR10 Program

Effective 20050331.2100, the EBBR.E13 CR10 program was revised to improve the quality of 
the primary measurements as follows:

1) An RMS procedure is used to determine max and min limits of acceptable soil heat flow.  
This is applied to the individual soil sets.  Measurements outside the limits are 
rejected and the measurements within the limits are used to calculate the average soil heat flow.

2) Max and min limits are used to determine incorrect values of net radiation, sensible 
heat flux (h), latent heat flux (e), and automatic exchange mechanism (AEM) signal.  If AEM 
signal is outside the limits, h and e are set to 999s.  If net radiation is outside the 
limits, h and e are set to 999s. If h or e are outside the limits, h and e are set to 999s.

Virtually no incorrect soil measurement will affect the primary measurements of h and e.

By setting h and e to 999s, it can be easily seen that the primary variables are 
incorrect; no other interpretation is possible.

Prior to 20050331, the improved CR10 program was NOT in effect.  DQRs have been submitted 
for known instances of incorrect soil measurements which affected the quality of the 
primary measurements of h and e.

Note: the DQR begin date is the begin date of the sgp30ebbrE13.b1 data stream.  The 
earlier version of the CR10 program was also used on previous EBBR datastream names (e.g. 
sgp30ebbrE13.a1).

• average surface soil heat flow(ave_shf)
• latent heat flux(e)
• h(h)

SGP/ECOR/E24 - Reprocess: Time Was 7 Hours Behind

When the site computer was changed on 9/16 the time was set 7 hours behind the actual 
time.

This problem may be fixed during future reprocessing of the data.

• time(time)

SGP/ECOR/E14 - CO2/H2O Incorrect

The LI-7500 CO2/H2O sensor stopped working after a rainstorm.  CO2 and H2O data are 
incorrect during the stated period.

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

SGP/ECOR/E24 - CO2/H2O Incorrect

The CO2/H2O sensor was not working during this period.  All CO2 and H2O means and fluxes 
are incorrect and  LI-7500 pressure and temperature are also incorrect.

• covariance uq(cvar_uq)
• covariance vc(cvar_vc)
• covariance of qc(cvar_qc)
• variance of c(var_c)
• rotated covariance wq(cvar_rot_wq)
• CO2 flux(fc)
• covariance wc(cvar_wc)
• covariance wq(cvar_wq)
• variance of q(var_q)
• latent heat flux(lv_e)
• mean value of out of range values and spikes of c -9999 if no spikes(mean_spk_c)
• kurtosis of variable c(kurt_c)
• covariance uc(cvar_uc)
• covariance of tc(cvar_tc)
• rotated covariance vc(cvar_rot_vc)
• rotated covariance uq(cvar_rot_uq)
• number of valid c samples(n_good_c)
• rotated covariance wc(cvar_rot_wc)
• skewness of variable q(skew_q)
• mean co2 concentration (c)(mean_c)
• Water vapor density (q)(mean_q)
• number of c samples removed due to spikes(n_spk_c)
• number of bad or out of range c samples(n_bad_c)
• covariance vq(cvar_vq)
• rotated covariance vq(cvar_rot_vq)
• number of samples with IRGA optical path blocked flag(n_bad_irga_light)
• rotated covariance uc(cvar_rot_uc)
• number of bad or out of range q samples(n_bad_q)
• number of q samples removed due to spikes(n_spk_q)
• number of valid q samples(n_good_q)
• kurtosis of variable q(kurt_q)
• covariance of tq(cvar_tq)
• average atmospheric pressure (IGRA internal sensor)(atm_pres)
• mean value of out of range values and spikes of q -9999 if no spikes(mean_spk_q)
• average temperature (IGRA internal sensor)(temp_irga)
• number of samples with \IRGA hardware problem\ flag(n_bad_irga)
• skewness of variable c(skew_c)

SGP/ECOR/E24 - CO2 and H2O Fluxes and Means Incorrect

The CO2 and H2O (lv_e) fluxes adn means were incorrect while the LI-7500 sensor was not 
working.

• covariance uq(cvar_uq)
• covariance vc(cvar_vc)
• variance of c(var_c)
• covariance of qc(cvar_qc)
• covariance vq(cvar_vq)
• rotated covariance wq(cvar_rot_wq)
• covariance wq(cvar_wq)
• covariance wc(cvar_wc)
• CO2 flux(fc)
• rotated covariance vq(cvar_rot_vq)
• latent heat flux(lv_e)
• variance of q(var_q)
• rotated covariance uc(cvar_rot_uc)
• covariance uc(cvar_uc)
• covariance of tc(cvar_tc)
• rotated covariance vc(cvar_rot_vc)
• rotated covariance uq(cvar_rot_uq)
• rotated covariance wc(cvar_rot_wc)
• mean co2 concentration (c)(mean_c)
• Water vapor density (q)(mean_q)
• average atmospheric pressure (IGRA internal sensor)(atm_pres)
• covariance of tq(cvar_tq)

SGP/ECOR/E1 - ECOR Pressure and Temperature Missing

The pressure and temperature from the CO2/H2O sensor is missing due to a failure of some 
kind.

• average temperature (IGRA internal sensor)(temp_irga)
• average atmospheric pressure (IGRA internal sensor)(atm_pres)

SGP/ECOR/E1 - CO2 and H2O Fluxes Incorrect

The CO2 and H2O fluxes (lv_e) were incorrect because of a LI-7500 failure.

• variance of c(var_c)
• rotated covariance uc(cvar_rot_uc)
• mean co2 concentration (c)(mean_c)
• latent heat flux(lv_e)
• covariance uq(cvar_uq)
• rotated covariance vq(cvar_rot_vq)
• covariance of tc(cvar_tc)
• CO2 flux(fc)
• covariance wc(cvar_wc)
• variance of q(var_q)
• rotated covariance vc(cvar_rot_vc)
• covariance vq(cvar_vq)
• Water vapor density (q)(mean_q)
• covariance of tq(cvar_tq)
• covariance uc(cvar_uc)
• covariance wq(cvar_wq)
• rotated covariance wc(cvar_rot_wc)
• rotated covariance wq(cvar_rot_wq)
• rotated covariance uq(cvar_rot_uq)
• covariance vc(cvar_vc)

SGP/EBBR/E13 - Fluxes Incorrect

The AEM has not been reaching the home_30 position fully a few times a day on most days, 
resulting in zero home_30 measurements.

The sensible and latent heat fluxes are incorrect when the home_30 measurement is near 
zero.

• Temperature of left humidity sensor chamber(rr_thum_l)
• Temperature of right humidity sensor chamber(rr_thum_r)
• Left air temperature(tair_l)
• Right air temperature(tair_r)

• Temperature of bottom humidity sensor chamber(thum_bot)
• top vapor pressure(vp_top)
• top air temperature(tair_top)
• Temperature of the top humidity chamber(thum_top)
• bottom vapor pressure(vp_bot)
• Bottom humidity(hum_bot)
• Top humidity(hum_top)
• bottom air temperature(tair_bot)

• Bottom humidity(hum_bot)
• ratio of sensible/latent heat fluxes (Bowen ratio)(bowen)
• bottom vapor pressure(vp_bot)
• Temperature of bottom humidity sensor chamber(thum_bot)
• Temperature of the top humidity chamber(thum_top)
• latent heat flux(e)
• h(h)
• bottom air temperature(tair_bot)
• top air temperature(tair_top)
• Top humidity(hum_top)
• top vapor pressure(vp_top)

SGP/EBBR/E13 - Loose connections

The tair_bot spiked around midday, as if it is temperature related, and may have indicated 
a loose connection.

The sensible and latyent heat fluxes and Bowen ratio were incorrect when this condition 
occurred.

• Left air temperature(tair_l)
• Right air temperature(tair_r)

• bottom air temperature(tair_bot)

• bottom air temperature(tair_bot)
• ratio of sensible/latent heat fluxes (Bowen ratio)(bowen)
• latent heat flux(e)
• h(h)

SGP/EBBR/E13 - Average Soil Heat Flux Incorrect

A typo in the version 9 EBBR program caused average soil heat flow to be zero, resulting 
in both sensible and latent heat fluxes being approximately 20 watts per meter squared too 
large during the middle of the day.

• average surface soil heat flow(ave_shf)
• latent heat flux(e)
• h(h)

SGP/EBBR/E13 - All EBBR Data Missing

All E13 EBBR data was missing during these three periods.

• Soil moisture 2(r_sm2)
• lon(lon)
• base time(base_time)
• Soil heat flow 2(mv_hft2)
• Soil moisture 3(r_sm3)
• Soil heat flow 3(mv_hft3)
• Soil moisture 4(r_sm4)
• Wind direction (relative to true north)(mv_wind_d)
• Soil moisture 1(r_sm1)
• Home signal(mv_home)
• Temperature of right humidity sensor chamber(rr_thum_r)
• lat(lat)
• Left relative humidity(mv_hum_l)
• Time offset of tweaks from base_time(time_offset)
• Soil moisture 5(r_sm5)
• Reference temperature(rr_tref)
• Net radiation(mv_q)
• Signature(signature)
• Temperature of left humidity sensor chamber(rr_thum_l)
• scalar wind speed(wind_s)
• Soil heat flow 1(mv_hft1)
• Soil heat flow 4(mv_hft4)
• Soil temperature 3(rr_ts3)
• Soil temperature 4(rr_ts4)
• Soil temperature 5(rr_ts5)
• Right relative humidity(mv_hum_r)
• Soil heat flow 5(mv_hft5)
• Soil temperature 2(rr_ts2)
• Left air temperature(tair_l)
• Atmospheric pressure(mv_pres)
• Dummy altitude for Zeb(alt)
• Soil temperature 1(rr_ts1)
• Right air temperature(tair_r)
• Battery(bat)

• base time(base_time)
• Home signal(home)
• top air temperature(tair_top)
• Reference Thermistor Temperature(tref)
• Dummy altitude for Zeb(alt)
• lon(lon)
• bottom vapor pressure(vp_bot)
• Bottom humidity(hum_bot)
• time(time)
• Temperature of bottom humidity sensor chamber(thum_bot)
• lat(lat)
• net radiation(q)
• Temperature of the top humidity chamber(thum_top)
• vector wind speed(res_ws)
• Time offset of tweaks from base_time(time_offset)
• top vapor pressure(vp_top)
• standard deviation of wind direction (sigma theta)(sigma_wd)
• wind direction (relative to true north)(wind_d)
• Retrieved pressure profile(pres)
• scalar wind speed(wind_s)
• Top humidity(hum_top)
• bottom air temperature(tair_bot)

• 0-5 cm change in soil heat storage with time, site 2(ces2)
• 5 cm soil heat flow corrected for soil moisture content, site 1(c_shf1)
• ratio of sensible/latent heat fluxes (Bowen ratio)(bowen)
• 0-5 cm change in soil heat storage with time, site 3(ces3)
• Soil heat capacity 4(cs4)
• average surface soil heat flow(ave_shf)
• 5 cm soil heat flow, site 4(shf4)
• top vapor pressure(vp_top)
• volumetric soil moisture, site 4(sm4)
• 0-5 cm change in soil heat storage with time, site 2(ces1)
• volumetric soil moisture, site 5(sm5)
• Exchange mechanism position indicator (0 to 15 min)(home_15)
• soil heat flow, site 3(g3)
• Reference Thermistor Temperature(tref)
• bottom air temperature(tair_bot)
• base time(base_time)
• 0-5 cm integrated soil temperature, site 2(ts1)
• soil heat flow, site 2(g2)
• 5 cm soil heat flow corrected for soil moisture content, site 4(c_shf4)
• h(h)
• standard deviation of wind direction (sigma theta)(sigma_wd)
• volumetric soil moisture, site 2(sm2)
• 5 cm soil heat flow, site 1(shf1)
• scalar wind speed(wind_s)
• top air temperature(tair_top)
• Top humidity(hum_top)
• Exchange mechanism position indicator (15 to 30 min)(home_30)
• 5 cm soil heat flow corrected for soil moisture content, site 5(c_shf5)
• Soil heat capacity 3(cs3)
• 5 cm soil heat flow, site 2(shf2)
• Time offset of tweaks from base_time(time_offset)
• 5 cm soil heat flow corrected for soil moisture content, site 3(c_shf3)
• wind direction (relative to true north)(wind_d)
• 5 cm soil heat flow corrected for soil moisture content, site 2(c_shf2)
• vector wind speed(res_ws)
• Bottom humidity(hum_bot)
• Retrieved pressure profile(pres)
• soil heat flow, site 1(g1)
• soil heat flow, site 4(g4)
• 0-5 cm integrated soil temperature, site 5(ts5)
• Soil heat capacity 2(cs2)
• bottom vapor pressure(vp_bot)
• Temperature of the top humidity chamber(thum_top)
• latent heat flux(e)
• Soil heat capacity 1(cs1)
• lat(lat)
• net radiation(q)
• volumetric soil moisture, site 3(sm3)
• 5 cm soil heat flow, site 3(shf3)
• volumetric soil moisture, site 1(sm1)
• Temperature of bottom humidity sensor chamber(thum_bot)
• 5 cm soil heat flow, site 5(shf5)
• lon(lon)
• 0-5 cm change in soil heat storage with time, site 4(ces4)
• 0-5 cm integrated soil temperature, site 2(ts2)
• 0-5 cm integrated soil temperature, site 3(ts3)
• soil heat flow, site 5(g5)
• 0-5 cm integrated soil temperature, site 4(ts4)
• Soil heat capacity 5(cs5)
• 0-5 cm change in soil heat storage with time, site 5(ces5)
• Dummy altitude for Zeb(alt)

SGP/EBBR/E13 - metadata corrections

On 20050723, a series of metadata corrections and additions were completed.  These 
metadata changes apply to all EBBR.E13 data collected by ARM back to the installation of the 
instrument in September 1992.  Please see the current metadata for correct information.  
These changes do not affect data values or quality.

The changes are summarized below:
1) Update of "sensor location" information
2) Addition of installation dates for systems
3) Correction of soil type
4) Correction of soil moisture units (from "by volume" to "gravimetric")

• base time(base_time)

• base time(base_time)

• base time(base_time)

SGP/ECOR/E14 - Flux Measurements Incorrect

The ECOR datastream was corrupted; this happens when the ECOR program produces a 
datastream of the wrong length (i.e., leaves one or more measurements out).

Fluxes and some other measurements are incorrect.

Reprocessing will not correct this problem; the raw data are corrupted.

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

SGP/ECOR/E16 - Flux Measurements Incorrect

The ECOR datastream was corrupted; this happens when the ECOR program produces a 
datastream of the wrong length (i.e., leaves one or more measurements out).

Fluxes and some other measurements are incorrect.

Reprocessing will not correct this problem; the raw data are corrupted.

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

SGP/EBBR/E13 - Wind Speed Sensor Frozen

The wind speed sensor was frozen to a stopped posiiton; wind speed data is incorrect.

• scalar wind speed(wind_s)

• vector wind speed(res_ws)
• scalar wind speed(wind_s)

• scalar wind speed(wind_s)
• vector wind speed(res_ws)

SGP/EBBR/E13 - Missing Data

The Data was missing during these three periods for various reasons.

• Soil moisture 2(r_sm2)
• lon(lon)
• base time(base_time)
• Soil heat flow 2(mv_hft2)
• Soil moisture 3(r_sm3)
• Soil heat flow 3(mv_hft3)
• Soil moisture 4(r_sm4)
• Wind direction (relative to true north)(mv_wind_d)
• Soil moisture 1(r_sm1)
• Home signal(mv_home)
• Temperature of right humidity sensor chamber(rr_thum_r)
• lat(lat)
• Left relative humidity(mv_hum_l)
• Time offset of tweaks from base_time(time_offset)
• Soil moisture 5(r_sm5)
• Reference temperature(rr_tref)
• Net radiation(mv_q)
• Signature(signature)
• Temperature of left humidity sensor chamber(rr_thum_l)
• scalar wind speed(wind_s)
• Soil heat flow 1(mv_hft1)
• Soil heat flow 4(mv_hft4)
• Soil temperature 3(rr_ts3)
• Soil temperature 4(rr_ts4)
• Soil temperature 5(rr_ts5)
• Right relative humidity(mv_hum_r)
• Soil heat flow 5(mv_hft5)
• Soil temperature 2(rr_ts2)
• Left air temperature(tair_l)
• Atmospheric pressure(mv_pres)
• Dummy altitude for Zeb(alt)
• Soil temperature 1(rr_ts1)
• Right air temperature(tair_r)
• Battery(bat)

• base time(base_time)
• Home signal(home)
• top air temperature(tair_top)
• Reference Thermistor Temperature(tref)
• Dummy altitude for Zeb(alt)
• lon(lon)
• bottom vapor pressure(vp_bot)
• Bottom humidity(hum_bot)
• time(time)
• Temperature of bottom humidity sensor chamber(thum_bot)
• lat(lat)
• net radiation(q)
• Temperature of the top humidity chamber(thum_top)
• vector wind speed(res_ws)
• Time offset of tweaks from base_time(time_offset)
• top vapor pressure(vp_top)
• standard deviation of wind direction (sigma theta)(sigma_wd)
• wind direction (relative to true north)(wind_d)
• Retrieved pressure profile(pres)
• scalar wind speed(wind_s)
• Top humidity(hum_top)
• bottom air temperature(tair_bot)

• 0-5 cm change in soil heat storage with time, site 2(ces2)
• 5 cm soil heat flow corrected for soil moisture content, site 1(c_shf1)
• ratio of sensible/latent heat fluxes (Bowen ratio)(bowen)
• 0-5 cm change in soil heat storage with time, site 3(ces3)
• Soil heat capacity 4(cs4)
• average surface soil heat flow(ave_shf)
• 5 cm soil heat flow, site 4(shf4)
• top vapor pressure(vp_top)
• volumetric soil moisture, site 4(sm4)
• 0-5 cm change in soil heat storage with time, site 2(ces1)
• volumetric soil moisture, site 5(sm5)
• Exchange mechanism position indicator (0 to 15 min)(home_15)
• soil heat flow, site 3(g3)
• Reference Thermistor Temperature(tref)
• bottom air temperature(tair_bot)
• base time(base_time)
• 0-5 cm integrated soil temperature, site 2(ts1)
• soil heat flow, site 2(g2)
• 5 cm soil heat flow corrected for soil moisture content, site 4(c_shf4)
• h(h)
• standard deviation of wind direction (sigma theta)(sigma_wd)
• volumetric soil moisture, site 2(sm2)
• 5 cm soil heat flow, site 1(shf1)
• scalar wind speed(wind_s)
• top air temperature(tair_top)
• Top humidity(hum_top)
• Exchange mechanism position indicator (15 to 30 min)(home_30)
• 5 cm soil heat flow corrected for soil moisture content, site 5(c_shf5)
• Soil heat capacity 3(cs3)
• 5 cm soil heat flow, site 2(shf2)
• Time offset of tweaks from base_time(time_offset)
• 5 cm soil heat flow corrected for soil moisture content, site 3(c_shf3)
• wind direction (relative to true north)(wind_d)
• 5 cm soil heat flow corrected for soil moisture content, site 2(c_shf2)
• vector wind speed(res_ws)
• Bottom humidity(hum_bot)
• Retrieved pressure profile(pres)
• soil heat flow, site 1(g1)
• soil heat flow, site 4(g4)
• 0-5 cm integrated soil temperature, site 5(ts5)
• Soil heat capacity 2(cs2)
• bottom vapor pressure(vp_bot)
• Temperature of the top humidity chamber(thum_top)
• latent heat flux(e)
• Soil heat capacity 1(cs1)
• lat(lat)
• net radiation(q)
• volumetric soil moisture, site 3(sm3)
• 5 cm soil heat flow, site 3(shf3)
• volumetric soil moisture, site 1(sm1)
• Temperature of bottom humidity sensor chamber(thum_bot)
• 5 cm soil heat flow, site 5(shf5)
• lon(lon)
• 0-5 cm change in soil heat storage with time, site 4(ces4)
• 0-5 cm integrated soil temperature, site 2(ts2)
• 0-5 cm integrated soil temperature, site 3(ts3)
• soil heat flow, site 5(g5)
• 0-5 cm integrated soil temperature, site 4(ts4)
• Soil heat capacity 5(cs5)
• 0-5 cm change in soil heat storage with time, site 5(ces5)
• Dummy altitude for Zeb(alt)

SGP/EBBR/E13 - Flux and Gradient Measurements Incorrect

The AEM hung in one position; flux and gradient measurements were therefore incorrect.

• Temperature of left humidity sensor chamber(rr_thum_l)
• Left air temperature(tair_l)
• Temperature of right humidity sensor chamber(rr_thum_r)
• Right air temperature(tair_r)
• Left relative humidity(mv_hum_l)
• Right relative humidity(mv_hum_r)

• top air temperature(tair_top)
• Temperature of the top humidity chamber(thum_top)
• Bottom humidity(hum_bot)
• bottom vapor pressure(vp_bot)
• Temperature of bottom humidity sensor chamber(thum_bot)
• top vapor pressure(vp_top)
• Top humidity(hum_top)
• bottom air temperature(tair_bot)

• Bottom humidity(hum_bot)
• ratio of sensible/latent heat fluxes (Bowen ratio)(bowen)
• Temperature of bottom humidity sensor chamber(thum_bot)
• h(h)
• Top humidity(hum_top)
• top air temperature(tair_top)
• top vapor pressure(vp_top)
• bottom vapor pressure(vp_bot)
• Temperature of the top humidity chamber(thum_top)
• latent heat flux(e)
• bottom air temperature(tair_bot)

SGP/EBBR/E13 - Net Radiation and Fluxes Suspect

The net radiometer had water in it, making the net radiation and flux measurements 
suspect; the latter do not appear to be incorrect, but should be considered as suspect anyway.

• Net radiation(mv_q)

• net radiation(q)

• net radiation(q)
• latent heat flux(e)
• h(h)

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)
• h(h)
• average atmospheric pressure (IGRA internal sensor)(atm_pres)
• Retrieved water vapor density profile(rho)
• average temperature (IGRA internal sensor)(temp_irga)
• condensation pressure(cp)

SGP/EBBR/E13 - Left Air Temperature Incorrect - Fluxes Affected

The left air temperature was incorrect, thus the Bowen ratio and sensible and latent heat 
fluxes were incorrect also.

• Left air temperature(tair_l)

• bottom air temperature(tair_bot)
• top air temperature(tair_top)

• bottom air temperature(tair_bot)
• ratio of sensible/latent heat fluxes (Bowen ratio)(bowen)
• top air temperature(tair_top)
• latent heat flux(e)
• h(h)

SGP/EBBR/E13 - Fluxes Incorrect, AEM Problems

The AEM did not function properly, thus sensible and latent heat fluxes were incorrect.

• Left air temperature(tair_l)
• Right air temperature(tair_r)

• Temperature of bottom humidity sensor chamber(thum_bot)
• top vapor pressure(vp_top)
• top air temperature(tair_top)
• Temperature of the top humidity chamber(thum_top)
• bottom vapor pressure(vp_bot)
• Bottom humidity(hum_bot)
• Top humidity(hum_top)
• bottom air temperature(tair_bot)

• Bottom humidity(hum_bot)
• ratio of sensible/latent heat fluxes (Bowen ratio)(bowen)
• bottom vapor pressure(vp_bot)
• Temperature of bottom humidity sensor chamber(thum_bot)
• Temperature of the top humidity chamber(thum_top)
• latent heat flux(e)
• h(h)
• bottom air temperature(tair_bot)
• top air temperature(tair_top)
• Top humidity(hum_top)
• top vapor pressure(vp_top)

SGP/EBBR/E13 - Missing Data

Data was missing for this period.

• Soil moisture 2(r_sm2)
• lon(lon)
• base time(base_time)
• Soil heat flow 2(mv_hft2)
• Soil moisture 3(r_sm3)
• Soil heat flow 3(mv_hft3)
• Soil moisture 4(r_sm4)
• Wind direction (relative to true north)(mv_wind_d)
• Soil moisture 1(r_sm1)
• Home signal(mv_home)
• Temperature of right humidity sensor chamber(rr_thum_r)
• lat(lat)
• Left relative humidity(mv_hum_l)
• Time offset of tweaks from base_time(time_offset)
• Soil moisture 5(r_sm5)
• Reference temperature(rr_tref)
• Net radiation(mv_q)
• Signature(signature)
• Temperature of left humidity sensor chamber(rr_thum_l)
• scalar wind speed(wind_s)
• Soil heat flow 1(mv_hft1)
• Soil heat flow 4(mv_hft4)
• Soil temperature 3(rr_ts3)
• Soil temperature 4(rr_ts4)
• Soil temperature 5(rr_ts5)
• Right relative humidity(mv_hum_r)
• Soil heat flow 5(mv_hft5)
• Soil temperature 2(rr_ts2)
• Left air temperature(tair_l)
• Atmospheric pressure(mv_pres)
• Dummy altitude for Zeb(alt)
• Soil temperature 1(rr_ts1)
• Right air temperature(tair_r)
• Battery(bat)

• base time(base_time)
• Home signal(home)
• top air temperature(tair_top)
• Reference Thermistor Temperature(tref)
• Dummy altitude for Zeb(alt)
• lon(lon)
• bottom vapor pressure(vp_bot)
• Bottom humidity(hum_bot)
• time(time)
• Temperature of bottom humidity sensor chamber(thum_bot)
• lat(lat)
• net radiation(q)
• Temperature of the top humidity chamber(thum_top)
• vector wind speed(res_ws)
• Time offset of tweaks from base_time(time_offset)
• top vapor pressure(vp_top)
• standard deviation of wind direction (sigma theta)(sigma_wd)
• wind direction (relative to true north)(wind_d)
• Retrieved pressure profile(pres)
• scalar wind speed(wind_s)
• Top humidity(hum_top)
• bottom air temperature(tair_bot)

• 0-5 cm change in soil heat storage with time, site 2(ces2)
• 5 cm soil heat flow corrected for soil moisture content, site 1(c_shf1)
• ratio of sensible/latent heat fluxes (Bowen ratio)(bowen)
• 0-5 cm change in soil heat storage with time, site 3(ces3)
• Soil heat capacity 4(cs4)
• average surface soil heat flow(ave_shf)
• 5 cm soil heat flow, site 4(shf4)
• top vapor pressure(vp_top)
• volumetric soil moisture, site 4(sm4)
• 0-5 cm change in soil heat storage with time, site 2(ces1)
• volumetric soil moisture, site 5(sm5)
• Exchange mechanism position indicator (0 to 15 min)(home_15)
• soil heat flow, site 3(g3)
• Reference Thermistor Temperature(tref)
• bottom air temperature(tair_bot)
• base time(base_time)
• 0-5 cm integrated soil temperature, site 2(ts1)
• soil heat flow, site 2(g2)
• 5 cm soil heat flow corrected for soil moisture content, site 4(c_shf4)
• h(h)
• standard deviation of wind direction (sigma theta)(sigma_wd)
• volumetric soil moisture, site 2(sm2)
• 5 cm soil heat flow, site 1(shf1)
• scalar wind speed(wind_s)
• top air temperature(tair_top)
• Top humidity(hum_top)
• Exchange mechanism position indicator (15 to 30 min)(home_30)
• 5 cm soil heat flow corrected for soil moisture content, site 5(c_shf5)
• Soil heat capacity 3(cs3)
• 5 cm soil heat flow, site 2(shf2)
• Time offset of tweaks from base_time(time_offset)
• 5 cm soil heat flow corrected for soil moisture content, site 3(c_shf3)
• wind direction (relative to true north)(wind_d)
• 5 cm soil heat flow corrected for soil moisture content, site 2(c_shf2)
• vector wind speed(res_ws)
• Bottom humidity(hum_bot)
• Retrieved pressure profile(pres)
• soil heat flow, site 1(g1)
• soil heat flow, site 4(g4)
• 0-5 cm integrated soil temperature, site 5(ts5)
• Soil heat capacity 2(cs2)
• bottom vapor pressure(vp_bot)
• Temperature of the top humidity chamber(thum_top)
• latent heat flux(e)
• Soil heat capacity 1(cs1)
• lat(lat)
• net radiation(q)
• volumetric soil moisture, site 3(sm3)
• 5 cm soil heat flow, site 3(shf3)
• volumetric soil moisture, site 1(sm1)
• Temperature of bottom humidity sensor chamber(thum_bot)
• 5 cm soil heat flow, site 5(shf5)
• lon(lon)
• 0-5 cm change in soil heat storage with time, site 4(ces4)
• 0-5 cm integrated soil temperature, site 2(ts2)
• 0-5 cm integrated soil temperature, site 3(ts3)
• soil heat flow, site 5(g5)
• 0-5 cm integrated soil temperature, site 4(ts4)
• Soil heat capacity 5(cs5)
• 0-5 cm change in soil heat storage with time, site 5(ces5)
• Dummy altitude for Zeb(alt)

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)
• condensation pressure(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)
• Water vapor density (q)(mean_q)
• variance of 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 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/EBBR/E13 - Sensible and Latent Heat Fluxes Incorrect When Pressure Offscale

There were several half hours during this period when the pressure went offscale or at 
least to a high value, causing the sensible and latent heat fluxes to be incorrect.

• Atmospheric pressure(mv_pres)

• Retrieved pressure profile(pres)

• Retrieved pressure profile(pres)
• latent heat flux(e)
• h(h)

SGP/EBBR/E13 - Soil Heat Flow #3 Large Negative

During this period Soil Heat Flow #3 was sometimes incorrect (large negative); during 
those times, sensible and latent heat fluxes and average soil heat flux were sometimes (but 
not always incorrect).

• Soil heat flow 3(mv_hft3)

• soil heat flow, site 3(g3)
• 5 cm soil heat flow, site 3(shf3)
• 5 cm soil heat flow corrected for soil moisture content, site 3(c_shf3)
• average surface soil heat flow(ave_shf)
• latent heat flux(e)
• h(h)

SGP/EBBR/E13 - Pressure and Sensible and Latent Heat Fluxes Incorrect

During spikes in pressure upwards or downwards the sensible and latent heat fluxes were 
incorrect.

• Atmospheric pressure(mv_pres)

• Retrieved pressure profile(pres)

• Retrieved pressure profile(pres)
• latent heat flux(e)
• h(h)

SGP/EBBR/E13 - Most Measurements Incorrect When Battery Voltage Too low

Most measurements were incorrect during this period because the battery voltage was below 
10.5 volts.

• Soil moisture 2(r_sm2)
• Soil heat flow 2(mv_hft2)
• Soil moisture 3(r_sm3)
• Soil heat flow 3(mv_hft3)
• Soil moisture 4(r_sm4)
• Wind direction (relative to true north)(mv_wind_d)
• Soil moisture 1(r_sm1)
• Home signal(mv_home)
• Temperature of right humidity sensor chamber(rr_thum_r)
• Left relative humidity(mv_hum_l)
• Soil moisture 5(r_sm5)
• Reference temperature(rr_tref)
• Net radiation(mv_q)
• Temperature of left humidity sensor chamber(rr_thum_l)
• scalar wind speed(wind_s)
• Soil heat flow 1(mv_hft1)
• Soil heat flow 4(mv_hft4)
• Soil temperature 3(rr_ts3)
• Soil temperature 4(rr_ts4)
• Soil temperature 5(rr_ts5)
• Right relative humidity(mv_hum_r)
• Soil heat flow 5(mv_hft5)
• Soil temperature 2(rr_ts2)
• Left air temperature(tair_l)
• Atmospheric pressure(mv_pres)
• Soil temperature 1(rr_ts1)
• Right air temperature(tair_r)

• Home signal(home)
• top air temperature(tair_top)
• Reference Thermistor Temperature(tref)
• bottom vapor pressure(vp_bot)
• Bottom humidity(hum_bot)
• Temperature of bottom humidity sensor chamber(thum_bot)
• net radiation(q)
• vector wind speed(res_ws)
• Temperature of the top humidity chamber(thum_top)
• top vapor pressure(vp_top)
• standard deviation of wind direction (sigma theta)(sigma_wd)
• wind direction (relative to true north)(wind_d)
• Retrieved pressure profile(pres)
• scalar wind speed(wind_s)
• Top humidity(hum_top)
• bottom air temperature(tair_bot)

• 0-5 cm change in soil heat storage with time, site 2(ces2)
• 5 cm soil heat flow corrected for soil moisture content, site 1(c_shf1)
• ratio of sensible/latent heat fluxes (Bowen ratio)(bowen)
• 0-5 cm change in soil heat storage with time, site 3(ces3)
• Soil heat capacity 4(cs4)
• average surface soil heat flow(ave_shf)
• 5 cm soil heat flow, site 4(shf4)
• top vapor pressure(vp_top)
• volumetric soil moisture, site 4(sm4)
• 0-5 cm change in soil heat storage with time, site 2(ces1)
• volumetric soil moisture, site 5(sm5)
• Exchange mechanism position indicator (0 to 15 min)(home_15)
• soil heat flow, site 3(g3)
• Reference Thermistor Temperature(tref)
• bottom air temperature(tair_bot)
• soil heat flow, site 2(g2)
• 0-5 cm integrated soil temperature, site 2(ts1)
• 5 cm soil heat flow corrected for soil moisture content, site 4(c_shf4)
• h(h)
• standard deviation of wind direction (sigma theta)(sigma_wd)
• volumetric soil moisture, site 2(sm2)
• 5 cm soil heat flow, site 1(shf1)
• scalar wind speed(wind_s)
• Top humidity(hum_top)
• top air temperature(tair_top)
• Exchange mechanism position indicator (15 to 30 min)(home_30)
• 5 cm soil heat flow corrected for soil moisture content, site 5(c_shf5)
• Soil heat capacity 3(cs3)
• 5 cm soil heat flow, site 2(shf2)
• 5 cm soil heat flow corrected for soil moisture content, site 3(c_shf3)
• wind direction (relative to true north)(wind_d)
• 5 cm soil heat flow corrected for soil moisture content, site 2(c_shf2)
• vector wind speed(res_ws)
• Bottom humidity(hum_bot)
• Retrieved pressure profile(pres)
• soil heat flow, site 1(g1)
• soil heat flow, site 4(g4)
• 0-5 cm integrated soil temperature, site 5(ts5)
• Soil heat capacity 2(cs2)
• bottom vapor pressure(vp_bot)
• Temperature of the top humidity chamber(thum_top)
• latent heat flux(e)
• Soil heat capacity 1(cs1)
• net radiation(q)
• volumetric soil moisture, site 3(sm3)
• 5 cm soil heat flow, site 3(shf3)
• volumetric soil moisture, site 1(sm1)
• Temperature of bottom humidity sensor chamber(thum_bot)
• 5 cm soil heat flow, site 5(shf5)
• 0-5 cm change in soil heat storage with time, site 4(ces4)
• 0-5 cm integrated soil temperature, site 2(ts2)
• soil heat flow, site 5(g5)
• 0-5 cm integrated soil temperature, site 3(ts3)
• 0-5 cm integrated soil temperature, site 4(ts4)
• Soil heat capacity 5(cs5)
• 0-5 cm change in soil heat storage with time, site 5(ces5)

SGP/ECOR/E24 - Reprocess: ECOR Time 7 Hours Behind

The ECOR time was 7 hours behind during these periods.

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

SGP/EBBR/E13 - Battery failure

Data was missing entirely on parts of 10/22 and 10/23.

• Soil moisture 2(r_sm2)
• Soil heat flow 2(mv_hft2)
• Soil moisture 3(r_sm3)
• Soil heat flow 3(mv_hft3)
• Soil moisture 4(r_sm4)
• Wind direction (relative to true north)(mv_wind_d)
• Soil moisture 1(r_sm1)
• Home signal(mv_home)
• Temperature of right humidity sensor chamber(rr_thum_r)
• Left relative humidity(mv_hum_l)
• Soil moisture 5(r_sm5)
• Reference temperature(rr_tref)
• Net radiation(mv_q)
• Temperature of left humidity sensor chamber(rr_thum_l)
• scalar wind speed(wind_s)
• Soil heat flow 1(mv_hft1)
• Soil heat flow 4(mv_hft4)
• Soil temperature 3(rr_ts3)
• Soil temperature 4(rr_ts4)
• Soil temperature 5(rr_ts5)
• Right relative humidity(mv_hum_r)
• Soil heat flow 5(mv_hft5)
• Soil temperature 2(rr_ts2)
• Left air temperature(tair_l)
• Atmospheric pressure(mv_pres)
• Soil temperature 1(rr_ts1)
• Right air temperature(tair_r)

• top air temperature(tair_top)
• Reference Thermistor Temperature(tref)
• bottom vapor pressure(vp_bot)
• Bottom humidity(hum_bot)
• Temperature of bottom humidity sensor chamber(thum_bot)
• net radiation(q)
• vector wind speed(res_ws)
• Temperature of the top humidity chamber(thum_top)
• top vapor pressure(vp_top)
• standard deviation of wind direction (sigma theta)(sigma_wd)
• wind direction (relative to true north)(wind_d)
• Retrieved pressure profile(pres)
• scalar wind speed(wind_s)
• Top humidity(hum_top)
• bottom air temperature(tair_bot)

• 0-5 cm change in soil heat storage with time, site 2(ces2)
• 5 cm soil heat flow corrected for soil moisture content, site 1(c_shf1)
• ratio of sensible/latent heat fluxes (Bowen ratio)(bowen)
• 0-5 cm change in soil heat storage with time, site 3(ces3)
• Soil heat capacity 4(cs4)
• average surface soil heat flow(ave_shf)
• 5 cm soil heat flow, site 4(shf4)
• top vapor pressure(vp_top)
• volumetric soil moisture, site 4(sm4)
• 0-5 cm change in soil heat storage with time, site 2(ces1)
• volumetric soil moisture, site 5(sm5)
• Exchange mechanism position indicator (0 to 15 min)(home_15)
• soil heat flow, site 3(g3)
• Reference Thermistor Temperature(tref)
• bottom air temperature(tair_bot)
• soil heat flow, site 2(g2)
• 0-5 cm integrated soil temperature, site 2(ts1)
• 5 cm soil heat flow corrected for soil moisture content, site 4(c_shf4)
• h(h)
• standard deviation of wind direction (sigma theta)(sigma_wd)
• volumetric soil moisture, site 2(sm2)
• 5 cm soil heat flow, site 1(shf1)
• scalar wind speed(wind_s)
• Top humidity(hum_top)
• top air temperature(tair_top)
• Exchange mechanism position indicator (15 to 30 min)(home_30)
• 5 cm soil heat flow corrected for soil moisture content, site 5(c_shf5)
• Soil heat capacity 3(cs3)
• 5 cm soil heat flow, site 2(shf2)
• 5 cm soil heat flow corrected for soil moisture content, site 3(c_shf3)
• wind direction (relative to true north)(wind_d)
• 5 cm soil heat flow corrected for soil moisture content, site 2(c_shf2)
• vector wind speed(res_ws)
• Bottom humidity(hum_bot)
• Retrieved pressure profile(pres)
• soil heat flow, site 1(g1)
• soil heat flow, site 4(g4)
• 0-5 cm integrated soil temperature, site 5(ts5)
• Soil heat capacity 2(cs2)
• bottom vapor pressure(vp_bot)
• Temperature of the top humidity chamber(thum_top)
• latent heat flux(e)
• Soil heat capacity 1(cs1)
• net radiation(q)
• volumetric soil moisture, site 3(sm3)
• 5 cm soil heat flow, site 3(shf3)
• volumetric soil moisture, site 1(sm1)
• Temperature of bottom humidity sensor chamber(thum_bot)
• 5 cm soil heat flow, site 5(shf5)
• 0-5 cm change in soil heat storage with time, site 4(ces4)
• 0-5 cm integrated soil temperature, site 2(ts2)
• soil heat flow, site 5(g5)
• 0-5 cm integrated soil temperature, site 3(ts3)
• 0-5 cm integrated soil temperature, site 4(ts4)
• Soil heat capacity 5(cs5)
• 0-5 cm change in soil heat storage with time, site 5(ces5)

SGP/ECOR/E14 - Fluxes and Most Measurements Incorrect

The ECOR system was having major problems during this period and most measurements were 
incorrect most of the time.

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