SGP/SMOS/E13 - Snow depth sensor removed; data reported as missin

The snow depth sensor was removed from service.  The program was changed so that -9999 is 
entered into the datastream.

• Existence of snow?(snow)
• Snow Depth Sensor(snow_sen)

• Existence of snow?(snow)
• Snow Depth Sensor(snow_sen)

• Time of Maximum Snow Depth(time_max_snow)
• Maximum Snow Depth(max_snow)
• Time of Minimum Snow Depth(time_min_snow)
• Minimum Snow Depth(min_snow_depth)

SGP/EBBR - Incorrect Units for Soil Heat Capacity (cs1, cs2, cs3, cs4, cs5) in 30EBBR 
Header

The units for Soil Heat Capacity (cs1, cs2, cs3, cs4, cs5) in the 
EBBR 30 minute netcdf header have been incorrect from the beginning 
of processing the data into netcdf files.  The correct units are 
MJ/m^3/C.

This does not affect the data quality.

• Soil heat capacity 4(cs4)
• Soil heat capacity 5(cs5)
• Soil heat capacity 3(cs3)
• Soil heat capacity 2(cs2)
• Soil heat capacity 1(cs1)

• Soil heat capacity 3(cs3)
• Soil heat capacity 2(cs2)
• Soil heat capacity 5(cs5)
• Soil heat capacity 4(cs4)
• Soil heat capacity 1(cs1)

• Soil heat capacity 3(cs3)
• Soil heat capacity 2(cs2)
• Soil heat capacity 5(cs5)
• Soil heat capacity 4(cs4)
• Soil heat capacity 1(cs1)

• Soil heat capacity 1(cs1)
• Soil heat capacity 4(cs4)
• Soil heat capacity 3(cs3)
• Soil heat capacity 2(cs2)
• Soil heat capacity 5(cs5)

• Soil heat capacity 1(cs1)
• Soil heat capacity 4(cs4)
• Soil heat capacity 5(cs5)
• Soil heat capacity 2(cs2)
• Soil heat capacity 3(cs3)

• Soil heat capacity 4(cs4)
• Soil heat capacity 2(cs2)
• Soil heat capacity 1(cs1)
• Soil heat capacity 3(cs3)
• Soil heat capacity 5(cs5)

• Soil heat capacity 1(cs1)
• Soil heat capacity 4(cs4)
• Soil heat capacity 5(cs5)
• Soil heat capacity 2(cs2)
• Soil heat capacity 3(cs3)

• Soil heat capacity 2(cs2)
• Soil heat capacity 5(cs5)
• Soil heat capacity 4(cs4)
• Soil heat capacity 1(cs1)
• Soil heat capacity 3(cs3)

• Soil heat capacity 1(cs1)
• Soil heat capacity 5(cs5)
• Soil heat capacity 2(cs2)
• Soil heat capacity 3(cs3)
• Soil heat capacity 4(cs4)

• Soil heat capacity 2(cs2)
• Soil heat capacity 3(cs3)
• Soil heat capacity 4(cs4)
• Soil heat capacity 1(cs1)
• Soil heat capacity 5(cs5)

• Soil heat capacity 5(cs5)
• Soil heat capacity 3(cs3)
• Soil heat capacity 4(cs4)
• Soil heat capacity 1(cs1)
• Soil heat capacity 2(cs2)

• Soil heat capacity 3(cs3)
• Soil heat capacity 1(cs1)
• Soil heat capacity 4(cs4)
• Soil heat capacity 5(cs5)
• Soil heat capacity 2(cs2)

• Soil heat capacity 5(cs5)
• Soil heat capacity 3(cs3)
• Soil heat capacity 4(cs4)
• Soil heat capacity 2(cs2)
• Soil heat capacity 1(cs1)

SGP/EBBR - Incorrect Units for Soil Heat Capacity (cs1, cs2, cs3, cs4, cs5) in 30EBBR 
Header

The units for Soil Heat Capacity (cs1, cs2, cs3, cs4,
cs5) in the EBBR 30 minute netcdf header have been 
incorrect from the beginning of processing the data
into netcdf files.  The correct units are MJ/m^3/C.

This does not affect the data quality.

• Soil heat capacity 1(cs1)
• Soil heat capacity 3(cs3)
• Soil heat capacity 5(cs5)
• Soil heat capacity 4(cs4)
• Soil heat capacity 2(cs2)

• Soil heat capacity 5(cs5)
• Soil heat capacity 2(cs2)
• Soil heat capacity 3(cs3)
• Soil heat capacity 1(cs1)
• Soil heat capacity 4(cs4)

• Soil heat capacity 1(cs1)
• Soil heat capacity 3(cs3)
• Soil heat capacity 4(cs4)
• Soil heat capacity 2(cs2)
• Soil heat capacity 5(cs5)

• Soil heat capacity 3(cs3)
• Soil heat capacity 1(cs1)
• Soil heat capacity 2(cs2)
• Soil heat capacity 5(cs5)
• Soil heat capacity 4(cs4)

• Soil heat capacity 3(cs3)
• Soil heat capacity 1(cs1)
• Soil heat capacity 2(cs2)
• Soil heat capacity 4(cs4)
• Soil heat capacity 5(cs5)

• Soil heat capacity 4(cs4)
• Soil heat capacity 3(cs3)
• Soil heat capacity 5(cs5)
• Soil heat capacity 1(cs1)
• Soil heat capacity 2(cs2)

• Soil heat capacity 1(cs1)
• Soil heat capacity 3(cs3)
• Soil heat capacity 4(cs4)
• Soil heat capacity 5(cs5)
• Soil heat capacity 2(cs2)

• Soil heat capacity 1(cs1)
• Soil heat capacity 3(cs3)
• Soil heat capacity 5(cs5)
• Soil heat capacity 4(cs4)
• Soil heat capacity 2(cs2)

• Soil heat capacity 3(cs3)
• Soil heat capacity 5(cs5)
• Soil heat capacity 2(cs2)
• Soil heat capacity 4(cs4)
• Soil heat capacity 1(cs1)

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)

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

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

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

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

SGP/EBBR/E13  - Water In Net Radiometer; Surface Fluxes are Incorrect

The net radiometer top dome was punctured by migrating birds.  This alone does not cause 
incorrect net radiation measurements.  However, when it subsequently rains, water collects 
in the bottom dome, causing the net radiation measurements to be too large during the 
day and too small at night.

• Net radiation(mv_q)

• Net radiation(mv_q)

• specific humidity(q)
• latent heat flux(e)
• corrected sensible heat flux(h)

• specific humidity(q)

• latent heat flux(e)
• specific humidity(q)
• corrected sensible heat flux(h)

SGP/SMOS/E13 - 6-month Calibration Checks

During the time periods specified, the SMOS.E13 tower was
lowered for 6-month Calibration Checks.  During these times 
wind data are incorrect and temperature and humidity data 
may be incorrect.

Note, exact times when tower was down or maintenance was
being performed is sometimes unknown.  Users should use
the remaining data from these days with caution.

• Standard deviation of Relative Humidity(sd_rh)
• Relative humidity scaled, by total column amount from MWR(rh)
• barometric pressure(bar_pres)
• Standard Deviation of wind direction(sd_deg)
• Standard Deviation of Air Temperature(sd_temp)
• Standard Deviation of Wind Speed(sd_wspd)
• Unit Vector Wind Direction(wdir)
• Vapor Pressure (kiloPascals)(vap_pres)
• Environmental Temperature (hybrid-b grid)(temp)
• surface wind speed(wspd)
• Standard deviation of Barometric Pressure(sd_bar_pres)
• Standard deviation of Vapor Pressure(sd_vap_pres)
• Wind Speed (vector averaged)(wspd_va)

• Wind Speed (vector averaged)(wspd_va)
• Relative humidity scaled, by total column amount from MWR(rh)
• surface wind speed(wspd)
• Standard Deviation of wind direction(sd_deg)
• Environmental Temperature (hybrid-b grid)(temp)
• Unit Vector Wind Direction(wdir)
• barometric pressure(bar_pres)
• Vapor Pressure (kiloPascals)(vap_pres)

• Vapor Pressure (kiloPascals)(vap_pres)
• Relative humidity scaled, by total column amount from MWR(rh)
• surface wind speed(wspd)
• Standard Deviation of Air Temperature(sd_temp)
• Standard deviation of Vapor Pressure(sd_vap_pres)
• Standard Deviation of wind direction(sd_deg)
• Wind Speed (vector averaged)(wspd_va)
• Standard deviation of Barometric Pressure(sd_bar_pres)
• Standard Deviation of Wind Speed(sd_wspd)
• Unit Vector Wind Direction(wdir)
• Standard deviation of Relative Humidity(sd_rh)
• barometric pressure(bar_pres)
• Environmental Temperature (hybrid-b grid)(temp)

• Time of Minimum Vapor Pressure(time_min_vap_pres)
• Time of Maximum Barometric Pressure(time_max_bar_pres)
• Time of Minimum Wind Speed(time_min_wspd)
• Minimum Temperature(min_temp)
• Minimum Relative Humidity(min_rh)
• Minimum of Wind speed(min_wspd)
• Time of Minimum Relative Humidity(time_min_rh)
• Time of Minimum Barometric Pressure(time_min_bar_pres)
• Maximum Relative Humidity(max_rh)
• Maximum Temperature(max_temp)
• Time of Maximum Temperature(time_max_temp)
• Minimum Barometric Pressure(min_bar_pres)
• Maximum Vapor Pressure(max_vap_pres)
• Time of Maximum Wind Speed(time_max_wspd)
• Maximum Barometric Pressure(max_bar_pres)
• Time of Minimum Temperature(time_min_temp)
• Time of Maximum Vapor Pressure(time_max_vap_pres)
• maximum wind speed (gusts)(max_wspd)
• Time of Maximum Relative Humidity(time_max_rh)
• Minimum Vapor Pressure(min_vap_pres)

• Standard Deviation of wind direction(sd_deg)
• Wind Speed (vector averaged)(wspd_va)
• surface wind speed(wspd)
• barometric pressure(bar_pres)
• Relative humidity scaled, by total column amount from MWR(rh)
• Unit Vector Wind Direction(wdir)
• Vapor Pressure (kiloPascals)(vap_pres)
• Environmental Temperature (hybrid-b grid)(temp)

SGP/EBBR/E13/E15/E20/E22/E26/E4/E7/E8/E9  - BA EBBR VAP Bulk Aerodynamics

Fixed AEM and wind speed sensor heights were improperly used in the calculation of bulk 
aerodynamic sensible and latent heat fluxes instead of site specific heights.

This resulted in either under-estimation or over-estimation of the sensible and latent 
heat fluxes.

• Aerodynamic Sensible heat flux(ah)
• Friction velocity(austar)
• Aerodynamic Latent heat flux(ale)
• Best estimate Sensible heat flux(hcomb)
• Best estimate Latent heat flux(ecomb)

• Aerodynamic Latent heat flux(ale)
• Friction velocity(austar)
• Best estimate Sensible heat flux(hcomb)
• Aerodynamic Sensible heat flux(ah)
• Best estimate Latent heat flux(ecomb)

• Best estimate Latent heat flux(ecomb)
• Friction velocity(austar)
• average surface soil heat flow at the surface(ave_shf)
• Best estimate Sensible heat flux(hcomb)
• Aerodynamic Latent heat flux(ale)

• Aerodynamic Latent heat flux(ale)
• Best estimate Sensible heat flux(hcomb)
• Aerodynamic Sensible heat flux(ah)
• Best estimate Latent heat flux(ecomb)
• Friction velocity(austar)

• Best estimate Sensible heat flux(hcomb)
• Friction velocity(austar)
• Aerodynamic Sensible heat flux(ah)
• Best estimate Latent heat flux(ecomb)
• Aerodynamic Latent heat flux(ale)

• Best estimate Latent heat flux(ecomb)
• Aerodynamic Sensible heat flux(ah)
• Best estimate Sensible heat flux(hcomb)
• Friction velocity(austar)
• Aerodynamic Latent heat flux(ale)

• Best estimate Latent heat flux(ecomb)
• Friction velocity(austar)
• Best estimate Sensible heat flux(hcomb)
• Aerodynamic Sensible heat flux(ah)
• Aerodynamic Latent heat flux(ale)

• Aerodynamic Sensible heat flux(ah)
• Aerodynamic Latent heat flux(ale)
• Best estimate Sensible heat flux(hcomb)
• Best estimate Latent heat flux(ecomb)
• Friction velocity(austar)

• Best estimate Latent heat flux(ecomb)
• Friction velocity(austar)
• Aerodynamic Sensible heat flux(ah)
• Aerodynamic Latent heat flux(ale)
• Best estimate Sensible heat flux(hcomb)

SGP/SWATS/E13 - Reprocess: Changed Depth Dimension

The dimension "depth" in the netCDF files was incorrectly reported as 8, and has been 
changed. Newer files with the correct smaller depth dimension do not have extra placeholder 
values and thus are smaller in size.

• Sensor Depth below surface(depth)

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 at the surface(ave_shf)
• latent heat flux(e)
• corrected sensible heat flux(h)