SGP/ECOR/E10 - Timestamp problems and intermittent data gaps

The raw files produced by the instrument contained bad (uncorrectable) data.  Specifically 
the date of the data in the file is given a time that is ahead of the actual time the 
data was genertaed.  This was caught because the date in the file was ahead of the system 
time of the server processing the raw file.  The mentor indicated all such files were 
compeltely bad and unrecoverable so all files that failed to be ingested were not shipped to 
the archive, thus producing holes in the raw and processed datastreams.  Because the 
problem was discovered by comparing to system time at time of processing all files between 
these dates should be consider suspect.  Therefore the files that are on the system over 
these three days should be used cautiously

• Raw data stream - documentation not supported(raw)

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

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)
• covariance of tc(cvar_tc)
• kurtosis of variable q(kurt_q)
• CO2 flux(fc)
• 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/E3 - Failed sensors

Data missing due to failed sonic anemometer and infrared gas analyzer. A
new sonic was installed on June 16.  All the data from May 25, 03:00 to June 16, 17:30 are 
irrevocably lost.

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

• Raw data stream - documentation not supported(raw)

SGP/ECOR/E1 - Sensors failure

No data due to sensors failure.  The data is irrevocably lost.

• 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)
• corrected sensible heat flux(h)
• rotated mean w(mean_rot_w)
• rotated mean v(mean_rot_v)
• variance of variable c(var_c)
• Westernmost west longitude for Zeb(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)
• rotated variance 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)
• rotated variance 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 offset from midnight GMT(time)
• number of valid q samples(n_good_q)
• rotated covariance vq(cvar_rot_vq)
• covariance of tc(cvar_tc)
• vw covariance(cvar_vw)
• mean w (vertical) wind component(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)
• mean water vapor concentration (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)
• Time offset from 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 variable 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 variable 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)
• Northernmost north latitude for Zeb(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)
• altitude above sea levelaltunits(alt)
• rotated covariance wq(cvar_rot_wq)
• number of bad or out of range w samples(n_bad_w)
• rotated variance 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)
• mean sonic temperature (t), i.e. virtual temperature(mean_t)
• variance of variable w(var_w)
• skewness of variable t(skew_t)
• average atmospheric pressure (IGRA internal sensor)(atm_pres)
• specific heat of moist air(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)
• rotated covariance uq(cvar_rot_uq)
• covariance vc(cvar_vc)
• mean value of \spike\ u samples(mean_spk_u)

SGP/ECOR/E21 - Irretrievable data loss

Due to unknown reason the SGP.E21 ECOR system was not working; the
data are missing and unrecoverable.

• Raw data stream - documentation not supported(raw)

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

SGP/ECOR/E10 - Sensor failure

Due to LI-7500 (H2O/CO2 infrared gas analyzer) sensor failure all humidity and CO2 data 
are incorrect for the period of Jul. 14, 2004 01:00 to Aug. 13, 2004 18:00.

• Raw data stream - documentation not supported(raw)

• rotated covariance vq(cvar_rot_vq)
• rotated covariance wc(cvar_rot_wc)
• skewness of variable c(skew_c)
• latent heat of vaporization(lv)
• covariance wc(cvar_wc)
• mean value of out of range values and spikes of t -9999 if no spikes(mean_spk_t)
• covariance vq(cvar_vq)
• specific heat of moist air(cp)
• covariance uc(cvar_uc)
• variance of variable c(var_c)
• rotated covariance vc(cvar_rot_vc)
• mean value of \spike\ v samples(mean_spk_v)
• kurtosis of variable q(kurt_q)
• mean value of out of range values and spikes of q -9999 if no spikes(mean_spk_q)
• mean value of \spike\ w samples(mean_spk_w)
• average atmospheric pressure (IGRA internal sensor)(atm_pres)
• rotated covariance uc(cvar_rot_uc)
• mean water vapor concentration (q)(mean_q)
• covariance vc(cvar_vc)
• rotated covariance wq(cvar_rot_wq)
• covariance of tc(cvar_tc)
• covariance uq(cvar_uq)
• average voltage of IRGA cooler(mean_cooler)
• rotated covariance uq(cvar_rot_uq)
• mean value of out of range values and spikes of c -9999 if no spikes(mean_spk_c)
• mixing ratio(mr)
• covariance of tq(cvar_tq)
• variance of variable q(var_q)
• latent heat flux(lv_e)
• skewness of variable q(skew_q)
• Retrieved water vapor density profile(rho)
• covariance of qc(cvar_qc)
• average temperature (IGRA internal sensor)(temp_irga)
• covariance wq(cvar_wq)
• kurtosis of variable c(kurt_c)
• mean value of \spike\ u samples(mean_spk_u)
• mean co2 concentration (c)(mean_c)

SGP/ECOR/E3 - Failed IRGA

Infrared gas analyzer (IRGA) failed 6/16; a new IRGA was installed on
6/30.  All data related to CO2 and water vapor concentration measurements
(including CO2 flux and latent heat flux) are incorrect for the period of
June 16, 2004, 17:30 to June 30, 2004, 17:30.  Wind and sensible heat flux data are OK.

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

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)
• covariance of qc(cvar_qc)
• variance of variable c(var_c)
• 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 variable 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)
• covariance uc(cvar_uc)
• kurtosis of variable c(kurt_c)
• covariance of tc(cvar_tc)
• rotated covariance vc(cvar_rot_vc)
• rotated covariance uq(cvar_rot_uq)
• specific heat of moist air(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)
• mean water vapor concentration (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/ECOR/E24 - Complete data loss due to hardware problems

The system did not work from Oct. 7, 2004, 12:30 till Dec. 9, 2004, 17:30 due to a number 
of hardware problems/failures. All data is irrevocably lost.

• covariance uq(cvar_uq)
• covariance of qc(cvar_qc)
• rotated variance 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)
• mean sonic temperature (t), i.e. virtual temperature(mean_t)
• variance of variable v(var_v)
• rotated variance u(var_rot_u)
• rotated covariance wt(cvar_rot_wt)
• skewness of variable u(skew_u)
• latent heat of vaporization(lv)
• rotated variance 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)
• specific heat of moist air(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)
• mean w (vertical) wind component(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)
• altitude above sea levelaltunits(alt)
• corrected sensible heat flux(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 variable t(var_t)
• mean water vapor concentration (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 variable c(var_c)
• rotated covariance uw(cvar_rot_uw)
• Time offset from base_time(base_time)
• variance of variable 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)
• Northernmost north latitude for Zeb(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 offset from midnight GMT(time)
• variance of variable u(var_u)
• vector averaged wind speed(wind_spd)
• Westernmost west longitude for Zeb(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)

• Raw data stream - documentation not supported(raw)

SGP/ECOR/E14 - Data loss due to hardware failure.

No data from the ECOR system from 15:00 Oct. 12, 2004 to 21:00 Oct. 13, 2004; all the data 
is lost due to hardware failure.

• 0=real or 1=dummy value of rho(real_rho)
• vw covariance(cvar_vw)
• Northernmost north latitude for Zeb(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)
• corrected sensible heat flux(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)
• rotated variance 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)
• specific heat of moist air(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)
• Time offset from 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 variable 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)
• rotated variance w(var_rot_w)
• Retrieved water vapor density profile(rho)
• mean sonic temperature (t), i.e. virtual temperature(mean_t)
• rotated covariance uw(cvar_rot_uw)
• covariance ut(cvar_ut)
• mean w (vertical) wind component(mean_w)
• rotated variance 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 offset from midnight GMT(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)
• altitude above sea levelaltunits(alt)
• variance of variable 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)
• mean water vapor concentration (q)(mean_q)
• kurtosis of variable c(kurt_c)
• variance of variable v(var_v)
• mean value of \spike\ u samples(mean_spk_u)
• Westernmost west longitude for Zeb(lon)
• rotated covariance ut(cvar_rot_ut)
• variance of variable 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)

• Raw data stream - documentation not supported(raw)

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)
• corrected sensible heat flux(h)
• rotated mean w(mean_rot_w)
• rotated mean v(mean_rot_v)
• variance of variable 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)
• rotated variance 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)
• rotated variance 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 offset from midnight GMT(time)
• number of valid q samples(n_good_q)
• rotated covariance vq(cvar_rot_vq)
• covariance of tc(cvar_tc)
• vw covariance(cvar_vw)
• mean w (vertical) wind component(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)
• mean water vapor concentration (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)
• Time offset from 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 variable 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 variable 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)
• rotated variance 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)
• mean sonic temperature (t), i.e. virtual temperature(mean_t)
• variance of variable w(var_w)
• skewness of variable t(skew_t)
• average atmospheric pressure (IGRA internal sensor)(atm_pres)
• specific heat of moist air(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 - 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)
• covariance of tc(cvar_tc)
• kurtosis of variable q(kurt_q)
• CO2 flux(fc)
• 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/E3 - Data transfer problem

Serial communication with one sensor (the IRGA) were partially disrupted due to 
deteriorating hardware from 13:53, Dec. 19, 2004 to 09:31 Dec. 20, 2004.  Serial data from the IRGA 
is mainly used to get sensor status codes, so this might lead to false increase of "bad" 
point count.  It seems that IRGA analog outputs (stored in raw sonic data file,  primary 
source of data) were not affected, so the flux data may be reprocessed or verified using 
raw sonic data files and ignoring IRGA sensor status.

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

• Raw data stream - documentation not supported(raw)

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)
• Northernmost north latitude for Zeb(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)
• variance of variable q(var_q)
• Vertical angle of wind(phi)
• 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 GMT(time)
• skewness of variable u(skew_u)
• covariance uq(cvar_uq)
• rotated covariance uv(cvar_rot_uv)
• Westernmost west longitude for Zeb(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)