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.

• n_bad_irga
• rotated covariance vq(cvar_rot_vq)
• rotated covariance vw(cvar_rot_vw)
• temp_irga
• rotated covariance vt(cvar_rot_vt)
• rho
• Mean CO2 density(mean_c)
• rotated covariance vc(cvar_rot_vc)
• rotated covariance uw(cvar_rot_uw)
• alt
• standard deviation of wind direction(std_wind_dir)
• rotated covariance uq(cvar_rot_uq)
• rotated covariance ut(cvar_rot_ut)
• rotated covariance uv(cvar_rot_uv)
• CO2 flux(fc)
• rotated variance v(var_rot_v)
• rotated variance u(var_rot_u)
• rotated variance w(var_rot_w)
• mean_cooler
• covariance tc(cvar_tc)
• skew_c
• lon
• rotated covariance uc(cvar_rot_uc)
• n_bad_son_ic
• mr
• variance of variable v(var_v)
• n_good_w
• covariance tq(cvar_tq)
• variance of variable u(var_u)
• n_good_v
• n_good_u
• variance of variable w(var_w)
• n_good_t
• elev
• Latent heat flux(lv_e)
• base_time
• covariance uc(cvar_uc)
• variance of variable q(var_q)
• variance of variable t(var_t)
• n_good_q
• Wind speed(wind_spd)
• covariance ut(cvar_ut)
• Momentum flux (dynamic)(k)
• covariance uv(cvar_uv)
• lv
• Corrected sensible heat flux(h)
• mean_rot_w
• covariance uq(cvar_uq)
• Mean horizontal wind speed(mean_rot_u)
• time_offset
• mean_rot_v
• mean_spk_c
• variance of variable c(var_c)
• n_good_c
• n_bad_irga_light
• wind_dir
• mean_spk_v
• mean_spk_w
• covaraince vc(cvar_vc)
• mean_spk_t
• mean_spk_u
• covariance uw(cvar_uw)
• mean_spk_q
• rotated covariance wc(cvar_rot_wc)
• covariance vq(cvar_vq)
• n_spk_c
• covariance vw(cvar_vw)
• covariance vt(cvar_vt)
• kurt_c
• covariance wc(cvar_wc)
• rotated covariance wt(cvar_rot_wt)
• rotated covariance wq(cvar_rot_wq)
• real_lv
• kurt_u
• kurt_t
• Pressure, condensation, at altitude, RUC model output(cp)
• kurt_q
• covaraince wq(cvar_wq)
• friction velocity(ustar)
• covariance wt(cvar_wt)
• real_cp
• n_spk_w
• n_spk_t
• n_spk_u
• n_spk_v
• kurt_v
• n_spk_q
• real_mr
• kurt_w
• skew_u
• skew_t
• skew_w
• skew_v
• skew_q
• standard deviation of wind elevation angle(std_elev)
• real_rho
• atm_pres
• time
• Mean H2O density(mean_q)
• Mean sonic temperature (t), i.e. virtual temperature(mean_t)
• mean_u
• mean_v
• mean_w
• phi
• n_bad_c
• covariance qc(cvar_qc)
• n_bad_w
• n_bad_v
• n_bad_u
• n_bad_t
• lat
• n_bad_q

SGP/ECOR/E5 - Reprocess: Time shifted -7 hours

An inadvertant power outage caused the ECOR program to shut down abnormally.  When power 
was restored, the timestamps on the ECOR files were 7 hours behind the correct time and 
the site ID was not accessed from the ECOR configuration file resulting in site ID (05) 
being replaced with "AN".

These conditions caused the ECOR files to be unrecognizable and therefore are presently 
missing in the Archive.

Correction of the timestamp and ID in the files should allow them to be processed and 
added to the Archive.

• AVHRR satellite images for Darwin from BOM (RAW)(raw)

• Mean horizontal wind speed(mean_rot_u)
• mean_rot_v
• mean_rot_w
• standard deviation of wind direction(std_wind_dir)
• time
• Momentum flux (dynamic)(k)
• phi
• Corrected sensible heat flux(h)
• kurt_c
• Wind speed(wind_spd)
• temp_irga
• covariance qc(cvar_qc)
• rho
• kurt_u
• kurt_t
• covaraince wq(cvar_wq)
• kurt_w
• kurt_v
• covariance wt(cvar_wt)
• kurt_q
• standard deviation of wind elevation angle(std_elev)
• base_time
• wind_dir
• n_bad_irga
• lon
• elev
• atm_pres
• Latent heat flux(lv_e)
• friction velocity(ustar)
• rotated covariance uq(cvar_rot_uq)
• covariance vt(cvar_vt)
• covariance vw(cvar_vw)
• lv
• rotated covariance uw(cvar_rot_uw)
• rotated covariance uv(cvar_rot_uv)
• covariance wc(cvar_wc)
• rotated covariance ut(cvar_rot_ut)
• n_bad_t
• n_bad_u
• n_bad_v
• n_bad_w
• Pressure, condensation, at altitude, RUC model output(cp)
• skew_c
• covariance vq(cvar_vq)
• rotated covariance uc(cvar_rot_uc)
• covariance uv(cvar_uv)
• covariance ut(cvar_ut)
• mean_spk_q
• skew_t
• skew_u
• covariance uw(cvar_uw)
• skew_v
• skew_w
• skew_q
• covaraince vc(cvar_vc)
• mean_spk_c
• n_bad_q
• n_bad_irga_light
• covariance uc(cvar_uc)
• n_good_q
• n_good_v
• n_good_w
• n_good_t
• n_good_u
• mean_spk_w
• mean_spk_v
• lat
• covariance uq(cvar_uq)
• n_bad_c
• mean_spk_u
• mean_spk_t
• n_spk_c
• rotated variance w(var_rot_w)
• real_cp
• rotated variance v(var_rot_v)
• real_mr
• rotated variance u(var_rot_u)
• rotated covariance wt(cvar_rot_wt)
• rotated covariance wq(cvar_rot_wq)
• n_good_c
• real_rho
• alt
• n_spk_t
• mean_cooler
• n_spk_u
• n_spk_v
• covariance tc(cvar_tc)
• n_spk_w
• n_bad_son_ic
• rotated covariance wc(cvar_rot_wc)
• time_offset
• covariance tq(cvar_tq)
• Mean CO2 density(mean_c)
• real_lv
• n_spk_q
• CO2 flux(fc)
• rotated covariance vq(cvar_rot_vq)
• rotated covariance vt(cvar_rot_vt)
• Mean sonic temperature (t), i.e. virtual temperature(mean_t)
• Mean H2O density(mean_q)
• rotated covariance vw(cvar_rot_vw)
• mean_w
• mean_u
• mean_v
• variance of variable c(var_c)
• rotated covariance vc(cvar_rot_vc)
• variance of variable u(var_u)
• variance of variable v(var_v)
• variance of variable w(var_w)
• variance of variable q(var_q)
• mr
• variance of variable t(var_t)

SGP/ECOR/E21 - Intermittent incorrect flux measurements

At various times during the period, the LI-7500 CO2/H2O serial and analog signals from the 
LI-7500 were missing, but usually not at the same time.

When the CO2/H2O serial datastream was missing, the Pressure and Temperature were missing; 
this did not, in itself, result in incorrect fluxes, as default values for pressure and 
temperature are automatically used.

Fluxes were incorrect when the CO2/H2O analog datastream was missing; these
times are identified by the qc checks.

• Latent heat flux(lv_e)
• CO2 flux(fc)
• covaraince wq(cvar_wq)
• atm_pres
• covariance wc(cvar_wc)
• temp_irga

SGP/CO2FLX/C1 - downwelling longwave hemispheric irradiance incorrect

Downwelling longwave radiation measurements (variable "r_down_long_hemisp") are bad due to 
a wiring issue. Users should not use the downwelling longwave hemispheric irradiance 
during this period. The downwelling shortwave and longwave radiation at CF is also available 
from the Broadband Radiometer Station (BRS).

• Downwelling longwave hemispheric irradiance; t_rad corrected(r_down_long_hemisp)

SGP/ECOR/E5 - 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.

Note: Mentor reports reprocessing will not correct this problem.

• CO2 flux(fc)
• Latent heat flux(lv_e)
• Corrected sensible heat flux(h)

SGP/ECOR/E14 - IRGA Temperature Incorrect or Missing

The temp_irga was too large 05/09/07 1300 GMT - 05/10/07 2000 GMT.

The temp_irga was flat lined at 49.96 C 05/10/07 2030 GMT - 05/17/07 2000 GMT.  

The temp_irga was missing 05/17/07 2030 GMT - 05/19/07 1700 GMT.

• temp_irga

SGP/ECOR/E5 - Flux Data Incorrect

CO2 flux (lv_e) and latent heat flux (fc) were incorrect because the sonic anemometer was 
not working.

• CO2 flux(fc)
• covaraince wq(cvar_wq)
• Latent heat flux(lv_e)
• Mean H2O density(mean_q)
• Mean CO2 density(mean_c)
• variance of variable q(var_q)
• covariance wc(cvar_wc)
• variance of variable c(var_c)

SGP/CO2FLX/C1 - Disturbance around site

A bulldozer used to excavate the SGP Tower anchors was right around (within 10 feet) our 
systems.

• WPL corrected CO2 flux(fc_corr)
• Mean CO2 density(mean_c)

• WPL corrected CO2 flux(fc_corr)
• Mean CO2 density(mean_c)

• Mean CO2 density(mean_c)
• WPL corrected CO2 flux(fc_corr)

• WPL corrected CO2 flux(fc_corr)
• Mean CO2 density(mean_c)

SGP/CO2FLX/C1 - Farm operation

Soil temperature, soil moisture, soil heat flux and upwelling surface radiation (long, 
short, and PAR) measurements were not valid from 20070822 to 20070907 due to farm operations.

• stderr_mean_t_soil_lower
• Average of four upper soil moisture sensors(mean_m_soil_upper)
• stderr_mean_m_soil_lower
• Upwelling shortwave hemispheric irradiance; t_rad corrected(r_up_short_hemisp)
• stderr_mean_m_soil_upper
• stderr_mean_t_soil_middle
• Average of two lower soil temperature sensors(mean_t_soil_lower)
• Average of four soil heat flux probes(mean_g_soil)
• stderr_mean_t_soil_upper
• ppfd_up
• Average of four lower soil moisture sensors(mean_m_soil_lower)
• Upwelling longwave hemispheric irradiance; t_rad corrected(r_up_long_hemisp)
• Average of two upper soil temperature sensors(mean_t_soil_upper)
• stderr_mean_g_soil
• Average of two middle soil temperature sensors(mean_t_soil_middle)

SGP/CO2FLX/C1 - Reprocess: 4m instruments height

The height of the 4m instruments is 4.8 m and not 4.65 m as shown in b1 datastream

• zm

SGP/ECOR/E24 - Half Hours of Data Missing

Individual half hours of data were missing infrequently because of a UPS
problem.  The extent of missing data is minimal, with only a few to several half hours 
missing most months.

Data quality of the surrounding data times was not affected.

• n_bad_son_ic
• mean_rot_w
• covaraince vc(cvar_vc)
• mean_rot_v
• rho
• covariance uw(cvar_uw)
• covariance uv(cvar_uv)
• covariance uq(cvar_uq)
• covariance ut(cvar_ut)
• kurt_c
• covariance uc(cvar_uc)
• CO2 flux(fc)
• covariance tq(cvar_tq)
• phi
• alt
• rotated covariance ut(cvar_rot_ut)
• covariance tc(cvar_tc)
• variance of variable c(var_c)
• rotated covariance uq(cvar_rot_uq)
• Wind speed(wind_spd)
• rotated covariance uv(cvar_rot_uv)
• rotated covariance uw(cvar_rot_uw)
• elev
• rotated covariance uc(cvar_rot_uc)
• wind_dir
• lat
• rotated covariance vt(cvar_rot_vt)
• rotated covariance vq(cvar_rot_vq)
• Latent heat flux(lv_e)
• variance of variable v(var_v)
• variance of variable w(var_w)
• rotated covariance vw(cvar_rot_vw)
• variance of variable t(var_t)
• variance of variable u(var_u)
• variance of variable q(var_q)
• rotated covariance vc(cvar_rot_vc)
• standard deviation of wind direction(std_wind_dir)
• Corrected sensible heat flux(h)
• Momentum flux (dynamic)(k)
• n_good_w
• n_good_v
• n_good_u
• base_time
• covariance qc(cvar_qc)
• atm_pres
• n_good_t
• n_spk_v
• n_good_q
• n_spk_w
• n_spk_t
• n_spk_u
• mr
• n_spk_q
• real_lv
• n_bad_irga_light
• n_bad_t
• n_bad_irga
• n_bad_v
• n_bad_u
• rotated variance w(var_rot_w)
• rotated variance v(var_rot_v)
• lon
• rotated variance u(var_rot_u)
• n_bad_q
• n_spk_c
• time_offset
• rotated covariance wc(cvar_rot_wc)
• n_bad_c
• real_mr
• rotated covariance wt(cvar_rot_wt)
• rotated covariance wq(cvar_rot_wq)
• Pressure, condensation, at altitude, RUC model output(cp)
• mean_v
• mean_w
• mean_cooler
• Mean sonic temperature (t), i.e. virtual temperature(mean_t)
• covariance vq(cvar_vq)
• mean_u
• covariance vt(cvar_vt)
• standard deviation of wind elevation angle(std_elev)
• Mean H2O density(mean_q)
• covariance vw(cvar_vw)
• skew_c
• n_bad_w
• covariance wc(cvar_wc)
• kurt_q
• mean_spk_c
• skew_w
• skew_v
• skew_u
• n_good_c
• skew_t
• kurt_u
• kurt_v
• time
• real_rho
• skew_q
• kurt_t
• temp_irga
• covaraince wq(cvar_wq)
• covariance wt(cvar_wt)
• mean_spk_t
• mean_spk_v
• mean_spk_u
• Mean horizontal wind speed(mean_rot_u)
• mean_spk_q
• Mean CO2 density(mean_c)
• kurt_w
• real_cp
• friction velocity(ustar)
• mean_spk_w
• lv