SGP/SMOS/E21 - Reprocess: Errors in Global Metadata

The netcdf files for SMOS.E21 incorrectly list sensor heights at E21, Okmulgee
as being 10m for winds, 2m for temp, RH and vapor pressure, and 1m for barometric
pressure.  The Okmulgee site is a forested site and these sensors are mounted on
a tower above the canopy.  The actual sensor heights are 18m for winds, 17m for
temp, RH and vapor pressure, and 19m for barometric pressure which corresponds
to 3.7m, 2.7m, and 4.7m above the average canopy height respectively.

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

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

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

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

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

SGP/SMOS/E7 - 30 minute Data Values Suspect

30 minute data values suspect due to tower being lowered from 14:22 - 14:38 GMT for T/RH 
probe replacement.

• Snow Depth Sensor(snow_sen)
• precipitation accumulated between outputs, 3-hr accumulation(precip)
• Unit Vector Wind Direction(wdir)
• Standard deviation of Relative Humidity(sd_rh)
• Environmental Temperature (hybrid-b grid)(temp)
• Standard Deviation of Air Temperature(sd_temp)
• Wind Speed (vector averaged)(wspd_va)
• Standard Deviation of Wind Speed(sd_wspd)
• Vapor Pressure (kiloPascals)(vap_pres)
• Existence of snow?(snow)
• surface wind speed(wspd)
• barometric pressure(bar_pres)
• Standard deviation of Barometric Pressure(sd_bar_pres)
• Standard deviation of Vapor Pressure(sd_vap_pres)
• Standard Deviation of wind direction(sd_deg)
• Relative humidity scaled, by total column amount from MWR(rh)

• Standard deviation of Vapor Pressure(sd_vap_pres)
• Snow Depth Sensor(snow_sen)
• Vapor Pressure (kiloPascals)(vap_pres)
• Relative humidity scaled, by total column amount from MWR(rh)
• Standard deviation of Barometric Pressure(sd_bar_pres)
• precipitation accumulated between outputs, 3-hr accumulation(precip)
• Unit Vector Wind Direction(wdir)
• barometric pressure(bar_pres)
• Environmental Temperature (hybrid-b grid)(temp)
• Standard Deviation of wind direction(sd_deg)
• Standard Deviation of Wind Speed(sd_wspd)
• Wind Speed (vector averaged)(wspd_va)
• surface wind speed(wspd)
• Existence of snow?(snow)
• Standard Deviation of Air Temperature(sd_temp)
• Standard deviation of Relative Humidity(sd_rh)

SGP/SMOS/E24 - RH Values Incorrect

RH values approximately 10 - 20% low compared to neighboring sites.

• Standard deviation of Vapor Pressure(sd_vap_pres)
• Standard deviation of Relative Humidity(sd_rh)
• Vapor Pressure (kiloPascals)(vap_pres)
• Relative humidity scaled, by total column amount from MWR(rh)

• Relative humidity scaled, by total column amount from MWR(rh)
• Vapor Pressure (kiloPascals)(vap_pres)

• Vapor Pressure (kiloPascals)(vap_pres)
• Standard deviation of Vapor Pressure(sd_vap_pres)
• Standard deviation of Relative Humidity(sd_rh)
• Relative humidity scaled, by total column amount from MWR(rh)

• Maximum Vapor Pressure(max_vap_pres)
• Time of Maximum Relative Humidity(time_max_rh)
• Maximum Relative Humidity(max_rh)
• Time of Minimum Vapor Pressure(time_min_vap_pres)
• Time of Maximum Vapor Pressure(time_max_vap_pres)
• Minimum Vapor Pressure(min_vap_pres)
• Minimum Relative Humidity(min_rh)
• Time of Minimum Relative Humidity(time_min_rh)

• Relative humidity scaled, by total column amount from MWR(rh)
• Vapor Pressure (kiloPascals)(vap_pres)

SGP/SMOS/E24 - Precip Data Suspect

Precipitation data suspect due to rain gauge being clogged with bird droppings.

• precipitation accumulated between outputs, 3-hr accumulation(precip)

• precipitation accumulated between outputs, 3-hr accumulation(precip)

• precipitation accumulated between outputs, 3-hr accumulation(precip)

• precipitation accumulated between outputs, 3-hr accumulation(precip)

SGP/SMOS/E20 - 6-month Calibration Checks

During the time periods specified, the SMOS.E20 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.

Calibration results are available from the OMIS database at 
    
http://www.ops.sgp.arm.gov:591/smos6cal/default.htm 
To view all 6-month calibration reports leave the date time entry blank.

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

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

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

SGP/SMOS/E4 - Reprocess: Wind direction offset

When the SGP.E4 SMOS tower was installed it was not aligned
properly resulting in a 7 degree offset.  On 3/9/05, the
datalogger program was modifed to correct for this offset.

• Unit Vector Wind Direction(wdir)

• Unit Vector Wind Direction(wdir)

SGP/SMOS/E3 - Reprocess: Wind direction offset

When the SGP.E3 SMOS tower was installed it was not aligned
properly resulting in a 7 degree offset.  On 3/9/05, the 
datalogger program was modified to correct for this offset.

• Unit Vector Wind Direction(wdir)

• Unit Vector Wind Direction(wdir)

SGP/SMOS/E6 - Reprocess: Wind direction offset

When the SGP.E6 SMOS tower was installed it was not aligned
properly resulting in a 7 degree offset.  On 3/10/05, the
datalogger program was modified to correct for this offset.

• Unit Vector Wind Direction(wdir)

• Unit Vector Wind Direction(wdir)

SGP/SMOS/E7 - Reprocess: Wind direction offset

When the SGP.E7 SMOS tower was installed it was not aligned
properly resulting in a 6 degree offset.  On 3/08/05, the
datalogger program was modified to correct for this offset.

• Unit Vector Wind Direction(wdir)

• Unit Vector Wind Direction(wdir)