SGP/ECOR/E3 - Missing data

Data are missing and unrecoverable.

• covariance vq(cvar_vq)
• h(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 c(var_c)
• number of bad or out of range t samples(n_bad_t)
• latent heat of vaporization(lv)
• Water vapor density (q)(mean_q)
• number of q samples removed due to spikes(n_spk_q)
• Dummy altitude for Zeb(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 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)
• Virtual temperature (T)(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(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)
• condensation pressure(cp)
• lon(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)
• variance of w(var_rot_w)
• covariance vc(cvar_vc)
• kurtosis of variable q(kurt_q)
• variance of 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 q(var_q)
• Cross-boom wind velocity (v)(mean_v)
• rotated covariance vw(cvar_rot_vw)
• skewness of variable u(skew_u)
• Vertical wind velocity (w)(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)
• 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)
• lat(lat)
• average voltage of IRGA cooler(mean_cooler)
• variance of 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)

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 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)
• Retrieved water vapor density profile(rho)
• skewness of variable q(skew_q)
• 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)
• condensation pressure(cp)
• covariance of qc(cvar_qc)
• 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 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)
• Water vapor density (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/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 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)
• Retrieved water vapor density profile(rho)
• skewness of variable q(skew_q)
• 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)
• condensation pressure(cp)
• covariance of qc(cvar_qc)
• 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 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)
• Water vapor density (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/E3 - CO2/H2O Sensor Not Working

The CO2/H2O sensor failed.  Means and fluxes of CO2 and H2O (lv_e) are incorrect or 
missing.

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