SGP/SMOS/E4 - Sensor failure

RH values drop to zero during most of the period between 01/17 and 01/19.  Sensor was 
replaced.

• Relative humidity inside the instrument enclosure(rh)
• Vapor Pressure (kiloPascals)(vap_pres)

• Vapor Pressure (kiloPascals)(vap_pres)
• Standard Deviation of Vapor Pressure(sd_vap_pres)
• Relative humidity inside the instrument enclosure(rh)
• Standard Deviation of Relative Humidity(sd_rh)

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

SGP/SMOS/E24 - Precip sensor failure

This site recorded little or no precipitation during the period specified while 
surrounding sites recorded half an inch of precipitation on 2/29 and 2-3 inches on 3/4.
  
Any rainfall reported at this location is suspect during this period.

• Hourly precipitation(precip)

• Hourly precipitation(precip)

SGP/SMOS/E1 - 6-month Calibration Checks

During the time periods specified, the SMOS.E1 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.

• Beam 0 Temperature(temp)
• Relative humidity inside the instrument enclosure(rh)
• Vapor Pressure (kiloPascals)(vap_pres)
• Standard Deviation of wind direction(sd_deg)
• Unit Vector Wind Direction(wdir)
• barometric pressure(bar_pres)
• Wind Speed (vector averaged)(wspd_va)
• Mean Wind Speed(wspd)

• Standard Deviation of Wind Speed(sd_wspd)
• barometric pressure(bar_pres)
• Vapor Pressure (kiloPascals)(vap_pres)
• Mean Wind Speed(wspd)
• Standard Deviation of Vapor Pressure(sd_vap_pres)
• Relative humidity inside the instrument enclosure(rh)
• Wind Speed (vector averaged)(wspd_va)
• Standard Deviation of Relative Humidity(sd_rh)
• Beam 0 Temperature(temp)
• Standard Deviation of Barometric Pressure(sd_bar_pres)
• Standard Deviation of wind direction(sd_deg)
• Unit Vector Wind Direction(wdir)
• Standard Deviation of Air Temperature(sd_temp)

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

SGP/SMOS/E3 - 6-month Calibration Checks

During the time periods specified, the SMOS.E3 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.

• Wind Speed (vector averaged)(wspd_va)
• Relative humidity inside the instrument enclosure(rh)
• barometric pressure(bar_pres)
• Vapor Pressure (kiloPascals)(vap_pres)
• Beam 0 Temperature(temp)
• Unit Vector Wind Direction(wdir)
• Mean Wind Speed(wspd)
• Standard Deviation of wind direction(sd_deg)

• Standard Deviation of Barometric Pressure(sd_bar_pres)
• Vapor Pressure (kiloPascals)(vap_pres)
• Unit Vector Wind Direction(wdir)
• Standard Deviation of Vapor Pressure(sd_vap_pres)
• Wind Speed (vector averaged)(wspd_va)
• Standard Deviation of wind direction(sd_deg)
• barometric pressure(bar_pres)
• Mean Wind Speed(wspd)
• Standard Deviation of Wind Speed(sd_wspd)
• Beam 0 Temperature(temp)
• Relative humidity inside the instrument enclosure(rh)
• Standard Deviation of Relative Humidity(sd_rh)
• Standard Deviation of Air Temperature(sd_temp)

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

SGP/SMOS/E4 - 6-month Calibration Checks

During the time periods specified, the SMOS.E4 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.

• Beam 0 Temperature(temp)
• Mean Wind Speed(wspd)
• Standard Deviation of wind direction(sd_deg)
• Wind Speed (vector averaged)(wspd_va)
• Vapor Pressure (kiloPascals)(vap_pres)
• barometric pressure(bar_pres)
• Unit Vector Wind Direction(wdir)
• Relative humidity inside the instrument enclosure(rh)

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

• Unit Vector Wind Direction(wdir)
• Standard Deviation of Vapor Pressure(sd_vap_pres)
• Standard Deviation of Wind Speed(sd_wspd)
• Standard Deviation of wind direction(sd_deg)
• Mean Wind Speed(wspd)
• Vapor Pressure (kiloPascals)(vap_pres)
• Standard Deviation of Air Temperature(sd_temp)
• Beam 0 Temperature(temp)
• barometric pressure(bar_pres)
• Relative humidity inside the instrument enclosure(rh)
• Standard Deviation of Barometric Pressure(sd_bar_pres)
• Standard Deviation of Relative Humidity(sd_rh)
• Wind Speed (vector averaged)(wspd_va)

SGP/SMOS/E5 - 6-month Calibration Checks

During the time periods specified, the SMOS.E5 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.

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

• Standard Deviation of Relative Humidity(sd_rh)
• Beam 0 Temperature(temp)
• Mean Wind Speed(wspd)
• Standard Deviation of Barometric Pressure(sd_bar_pres)
• Standard Deviation of wind direction(sd_deg)
• Unit Vector Wind Direction(wdir)
• Wind Speed (vector averaged)(wspd_va)
• Standard Deviation of Wind Speed(sd_wspd)
• barometric pressure(bar_pres)
• Standard Deviation of Air Temperature(sd_temp)
• Standard Deviation of Vapor Pressure(sd_vap_pres)
• Relative humidity inside the instrument enclosure(rh)
• Vapor Pressure (kiloPascals)(vap_pres)

• Mean Wind Speed(wspd)
• Wind Speed (vector averaged)(wspd_va)
• Vapor Pressure (kiloPascals)(vap_pres)
• barometric pressure(bar_pres)
• Beam 0 Temperature(temp)
• Unit Vector Wind Direction(wdir)
• Relative humidity inside the instrument enclosure(rh)
• Standard Deviation of wind direction(sd_deg)

SGP/SMOS/E8 - 6-month Calibration Checks

During the time periods specified, the SMOS.E8 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.

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

• Beam 0 Temperature(temp)
• Wind Speed (vector averaged)(wspd_va)
• Standard Deviation of Vapor Pressure(sd_vap_pres)
• Vapor Pressure (kiloPascals)(vap_pres)
• Standard Deviation of Barometric Pressure(sd_bar_pres)
• Standard Deviation of Air Temperature(sd_temp)
• Standard Deviation of Wind Speed(sd_wspd)
• Mean Wind Speed(wspd)
• Relative humidity inside the instrument enclosure(rh)
• Standard Deviation of Relative Humidity(sd_rh)
• Unit Vector Wind Direction(wdir)
• Standard Deviation of wind direction(sd_deg)
• barometric pressure(bar_pres)

• Mean Wind Speed(wspd)
• Wind Speed (vector averaged)(wspd_va)
• Relative humidity inside the instrument enclosure(rh)
• Vapor Pressure (kiloPascals)(vap_pres)
• Standard Deviation of wind direction(sd_deg)
• Unit Vector Wind Direction(wdir)
• Beam 0 Temperature(temp)
• barometric pressure(bar_pres)

SGP/SMOS/E6 - 6-month Calibration Checks

During the time periods specified, the SMOS.E6 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.

• barometric pressure(bar_pres)
• Standard Deviation of wind direction(sd_deg)
• Mean Wind Speed(wspd)
• Beam 0 Temperature(temp)
• Wind Speed (vector averaged)(wspd_va)
• Vapor Pressure (kiloPascals)(vap_pres)
• Unit Vector Wind Direction(wdir)
• Relative humidity inside the instrument enclosure(rh)

• Standard Deviation of Air Temperature(sd_temp)
• Standard Deviation of Barometric Pressure(sd_bar_pres)
• Unit Vector Wind Direction(wdir)
• barometric pressure(bar_pres)
• Beam 0 Temperature(temp)
• Relative humidity inside the instrument enclosure(rh)
• Vapor Pressure (kiloPascals)(vap_pres)
• Standard Deviation of Wind Speed(sd_wspd)
• Standard Deviation of Vapor Pressure(sd_vap_pres)
• Mean Wind Speed(wspd)
• Wind Speed (vector averaged)(wspd_va)
• Standard Deviation of Relative Humidity(sd_rh)
• Standard Deviation of wind direction(sd_deg)

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

SGP/SMOS/E7 - 6-month Calibration Checks

During the time periods specified, the SMOS.E7 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.

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

• Unit Vector Wind Direction(wdir)
• Standard Deviation of Relative Humidity(sd_rh)
• Beam 0 Temperature(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)
• Mean 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 inside the instrument enclosure(rh)

• Beam 0 Temperature(temp)
• Relative humidity inside the instrument enclosure(rh)
• Unit Vector Wind Direction(wdir)
• Standard Deviation of wind direction(sd_deg)
• Mean Wind Speed(wspd)
• Vapor Pressure (kiloPascals)(vap_pres)
• Wind Speed (vector averaged)(wspd_va)
• barometric pressure(bar_pres)

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.

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

• Wind Speed (vector averaged)(wspd_va)
• Standard Deviation of Barometric Pressure(sd_bar_pres)
• Vapor Pressure (kiloPascals)(vap_pres)
• Relative humidity inside the instrument enclosure(rh)
• Standard Deviation of Wind Speed(sd_wspd)
• Mean Wind Speed(wspd)
• Unit Vector Wind Direction(wdir)
• Standard Deviation of Air Temperature(sd_temp)
• Standard Deviation of Relative Humidity(sd_rh)
• Standard Deviation of Vapor Pressure(sd_vap_pres)
• barometric pressure(bar_pres)
• Standard Deviation of wind direction(sd_deg)
• Beam 0 Temperature(temp)

• barometric pressure(bar_pres)
• Relative humidity inside the instrument enclosure(rh)
• Standard Deviation of wind direction(sd_deg)
• Wind Speed (vector averaged)(wspd_va)
• Unit Vector Wind Direction(wdir)
• Mean Wind Speed(wspd)
• Vapor Pressure (kiloPascals)(vap_pres)
• Beam 0 Temperature(temp)

SGP/SMOS/E15 - 6-month Calibration Checks

During the time periods specified, the SMOS.E15 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.

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

• Mean Wind Speed(wspd)
• Beam 0 Temperature(temp)
• Relative humidity inside the instrument enclosure(rh)
• Unit Vector Wind Direction(wdir)
• Vapor Pressure (kiloPascals)(vap_pres)
• Standard Deviation of wind direction(sd_deg)
• barometric pressure(bar_pres)
• Wind Speed (vector averaged)(wspd_va)

• Standard Deviation of Air Temperature(sd_temp)
• Standard Deviation of wind direction(sd_deg)
• Unit Vector Wind Direction(wdir)
• barometric pressure(bar_pres)
• Mean Wind Speed(wspd)
• Wind Speed (vector averaged)(wspd_va)
• Standard Deviation of Vapor Pressure(sd_vap_pres)
• Beam 0 Temperature(temp)
• Standard Deviation of Relative Humidity(sd_rh)
• Standard Deviation of Wind Speed(sd_wspd)
• Relative humidity inside the instrument enclosure(rh)
• Standard Deviation of Barometric Pressure(sd_bar_pres)
• Vapor Pressure (kiloPascals)(vap_pres)

SGP/SMOS/E9 - 6-month Calibration Checks

During the time periods specified, the SMOS.E9 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 Vapor Pressure(sd_vap_pres)
• Wind Speed (vector averaged)(wspd_va)
• Standard Deviation of Air Temperature(sd_temp)
• Standard Deviation of Barometric Pressure(sd_bar_pres)
• Standard Deviation of Wind Speed(sd_wspd)
• barometric pressure(bar_pres)
• Mean Wind Speed(wspd)
• Unit Vector Wind Direction(wdir)
• Vapor Pressure (kiloPascals)(vap_pres)
• Relative humidity inside the instrument enclosure(rh)
• Standard Deviation of wind direction(sd_deg)
• Standard Deviation of Relative Humidity(sd_rh)
• Beam 0 Temperature(temp)

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

• Standard Deviation of wind direction(sd_deg)
• Mean Wind Speed(wspd)
• Wind Speed (vector averaged)(wspd_va)
• Unit Vector Wind Direction(wdir)
• Relative humidity inside the instrument enclosure(rh)
• Vapor Pressure (kiloPascals)(vap_pres)
• Beam 0 Temperature(temp)
• barometric pressure(bar_pres)

SGP/SMOS/E11 - 6-month Calibration Checks

During the time periods specified, the SMOS.E11 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.

• barometric pressure(bar_pres)
• Vapor Pressure (kiloPascals)(vap_pres)
• Wind Speed (vector averaged)(wspd_va)
• Relative humidity inside the instrument enclosure(rh)
• Unit Vector Wind Direction(wdir)
• Beam 0 Temperature(temp)
• Standard Deviation of wind direction(sd_deg)
• Mean Wind Speed(wspd)

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

• Unit Vector Wind Direction(wdir)
• Relative humidity inside the instrument enclosure(rh)
• Mean Wind Speed(wspd)
• Standard Deviation of Vapor Pressure(sd_vap_pres)
• Standard Deviation of Relative Humidity(sd_rh)
• Standard Deviation of Air Temperature(sd_temp)
• Standard Deviation of Wind Speed(sd_wspd)
• Standard Deviation of wind direction(sd_deg)
• Beam 0 Temperature(temp)
• Vapor Pressure (kiloPascals)(vap_pres)
• Wind Speed (vector averaged)(wspd_va)
• Standard Deviation of Barometric Pressure(sd_bar_pres)
• barometric pressure(bar_pres)

SGP/SMOS/E27 - 6-month Calibration Checks

During the time periods specified, the SMOS.E27 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.

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

• Unit Vector Wind Direction(wdir)
• Standard Deviation of wind direction(sd_deg)
• barometric pressure(bar_pres)
• Relative humidity inside the instrument enclosure(rh)
• Mean Wind Speed(wspd)
• Wind Speed (vector averaged)(wspd_va)
• Beam 0 Temperature(temp)
• Vapor Pressure (kiloPascals)(vap_pres)

• Beam 0 Temperature(temp)
• Vapor Pressure (kiloPascals)(vap_pres)
• Standard Deviation of Wind Speed(sd_wspd)
• barometric pressure(bar_pres)
• Standard Deviation of Relative Humidity(sd_rh)
• Relative humidity inside the instrument enclosure(rh)
• Standard Deviation of Vapor Pressure(sd_vap_pres)
• Unit Vector Wind Direction(wdir)
• Standard Deviation of Air Temperature(sd_temp)
• Standard Deviation of Barometric Pressure(sd_bar_pres)
• Wind Speed (vector averaged)(wspd_va)
• Standard Deviation of wind direction(sd_deg)
• Mean Wind Speed(wspd)

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.

• Mean Wind Speed(wspd)
• Wind Speed (vector averaged)(wspd_va)
• barometric pressure(bar_pres)
• Beam 0 Temperature(temp)
• Unit Vector Wind Direction(wdir)
• Vapor Pressure (kiloPascals)(vap_pres)
• Standard Deviation of wind direction(sd_deg)
• Relative humidity inside the instrument enclosure(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 inside the instrument enclosure(rh)
• Vapor Pressure (kiloPascals)(vap_pres)
• Standard Deviation of Barometric Pressure(sd_bar_pres)
• Mean 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)
• Beam 0 Temperature(temp)

SGP/SMOS/E21 - 6-month Calibration Checks

During the time periods specified, the SMOS.E21 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 wind direction(sd_deg)
• Beam 0 Temperature(temp)
• Vapor Pressure (kiloPascals)(vap_pres)
• Wind Speed (vector averaged)(wspd_va)
• barometric pressure(bar_pres)
• Mean Wind Speed(wspd)
• Relative humidity inside the instrument enclosure(rh)
• Unit Vector Wind Direction(wdir)

• Wind Speed (vector averaged)(wspd_va)
• barometric pressure(bar_pres)
• Vapor Pressure (kiloPascals)(vap_pres)
• Standard Deviation of Vapor Pressure(sd_vap_pres)
• Standard Deviation of Relative Humidity(sd_rh)
• Beam 0 Temperature(temp)
• Standard Deviation of Barometric Pressure(sd_bar_pres)
• Relative humidity inside the instrument enclosure(rh)
• Standard Deviation of Wind Speed(sd_wspd)
• Standard Deviation of Air Temperature(sd_temp)
• Mean Wind Speed(wspd)
• Unit Vector Wind Direction(wdir)
• Standard Deviation of wind direction(sd_deg)

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

SGP/SMOS/E24 - 6-month Calibration Checks

During the time periods specified, the SMOS.E24 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.

• Wind Speed (vector averaged)(wspd_va)
• Relative humidity inside the instrument enclosure(rh)
• Standard Deviation of wind direction(sd_deg)
• Vapor Pressure (kiloPascals)(vap_pres)
• Beam 0 Temperature(temp)
• barometric pressure(bar_pres)
• Unit Vector Wind Direction(wdir)
• Mean Wind Speed(wspd)

• Standard Deviation of Wind Speed(sd_wspd)
• Vapor Pressure (kiloPascals)(vap_pres)
• barometric pressure(bar_pres)
• Wind Speed (vector averaged)(wspd_va)
• Standard Deviation of Relative Humidity(sd_rh)
• Standard Deviation of Barometric Pressure(sd_bar_pres)
• Standard Deviation of Air Temperature(sd_temp)
• Standard Deviation of wind direction(sd_deg)
• Standard Deviation of Vapor Pressure(sd_vap_pres)
• Mean Wind Speed(wspd)
• Unit Vector Wind Direction(wdir)
• Relative humidity inside the instrument enclosure(rh)
• Beam 0 Temperature(temp)

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

SGP/SMOS/E4 - RH Sensor failure

The RH sensor at this site dropped anomalously to zero on 4/21, and 
was consistently 25% lower than EBBR RH readings on 4/23.  Sensor was 
replaced 5/6.

• Relative humidity inside the instrument enclosure(rh)
• Vapor Pressure (kiloPascals)(vap_pres)

• Vapor Pressure (kiloPascals)(vap_pres)
• Standard Deviation of Vapor Pressure(sd_vap_pres)
• Relative humidity inside the instrument enclosure(rh)
• Standard Deviation of Relative Humidity(sd_rh)

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

SGP/SMOS/E11 - Sensor failing during saturation conditions

RH% readings from this sensor exceeded the 104% threshold during saturated conditions.  
Sensor replaced.

• Vapor Pressure (kiloPascals)(vap_pres)
• Relative humidity inside the instrument enclosure(rh)

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

• Standard Deviation of Relative Humidity(sd_rh)
• Vapor Pressure (kiloPascals)(vap_pres)
• Relative humidity inside the instrument enclosure(rh)
• Standard Deviation of Vapor Pressure(sd_vap_pres)

SGP/SMOS/E21 - Sensor failure

The Barometer failed the 6 month calibration checks. PM tried to replace the barometer on 
5/12, but the new barometer would not work correctly. Pressure readings are 
missing/offscale from 5/12 1532 through 06/28/2003.  New barometer installed on 06/28/2003.

• barometric pressure(bar_pres)

• barometric pressure(bar_pres)
• Standard Deviation of Barometric Pressure(sd_bar_pres)

• Maximum Barometric Pressure(max_bar_pres)
• Time of Maximum Barometric Pressure(time_max_bar_pres)
• Minimum Barometric Pressure(min_bar_pres)
• Time of Minimum Barometric Pressure(time_min_bar_pres)

SGP/SMOS/E20 - Windspeed sensor failure

The wind speed sensor at this site reported values very close to zero almost constantly.  
A broken wire was repaired.

• Wind Speed (vector averaged)(wspd_va)
• Mean Wind Speed(wspd)

• Time of Maximum Wind Speed(time_max_wspd)
• Minimum of Wind speed(min_wspd)
• Time of Minimum Wind Speed(time_min_wspd)
• maximum wind speed (gusts)(max_wspd)

• Wind Speed (vector averaged)(wspd_va)
• Mean Wind Speed(wspd)
• Standard Deviation of Wind Speed(sd_wspd)

SGP/SMOS/E8 - T/RH probe Intermittently failing

Beginning of 12/14/2004 the RH% values at E8 became intermittently bad.  RH% values drop 
to 0% at times.  On 01/25/2005 @ 1820GMT a new probe was installed.  New probe RH% 
readings were over 104% in saturated conditions.  This probe was also replaced.

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

• Relative humidity inside the instrument enclosure(rh)
• Standard Deviation of Relative Humidity(sd_rh)
• Standard Deviation of Vapor Pressure(sd_vap_pres)
• Vapor Pressure (kiloPascals)(vap_pres)

• Relative humidity inside the instrument enclosure(rh)
• Vapor Pressure (kiloPascals)(vap_pres)

SGP/SMOS/E21 - Failed RH/Temp Probe

During the time period specified, the RH readings were 
              occasionally noisy/erratic or dropped to unreasonably low 
              values (frequently near 0%) for long periods of time.  
              Temperatures were reported as -9999 for long periods of 
              time as well.  Probe replaced.

• Beam 0 Temperature(temp)
• Vapor Pressure (kiloPascals)(vap_pres)
• Standard Deviation of wind direction(sd_deg)
• Relative humidity inside the instrument enclosure(rh)

• Standard Deviation of Air Temperature(sd_temp)
• Vapor Pressure (kiloPascals)(vap_pres)
• Standard Deviation of Vapor Pressure(sd_vap_pres)
• Standard Deviation of Relative Humidity(sd_rh)
• Beam 0 Temperature(temp)
• Relative humidity inside the instrument enclosure(rh)
• Standard Deviation of wind direction(sd_deg)

• Time of Maximum Vapor Pressure(time_max_vap_pres)
• Time of Minimum Temperature(time_min_temp)
• Time of Minimum Relative Humidity(time_min_rh)
• Minimum Temperature(min_temp)
• Time of Maximum Temperature(time_max_temp)
• Time of Maximum Relative Humidity(time_max_rh)
• Maximum Relative Humidity(max_rh)
• Time of Minimum Vapor Pressure(time_min_vap_pres)
• Minimum Relative Humidity(min_rh)
• Minimum Vapor Pressure(min_vap_pres)
• Maximum Temperature(max_temp)
• Maximum Vapor Pressure(max_vap_pres)

SGP/SMOS/E20 - RH values suspect

Recently, the RH readings at this facility have been very high (sometimes approaching 
110%) in saturated conditions.  This is especially prevalent from 01/03/2005 through 
02/07/2005.

• Vapor Pressure (kiloPascals)(vap_pres)
• Relative humidity inside the instrument enclosure(rh)

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

• Standard Deviation of Relative Humidity(sd_rh)
• Standard Deviation of Vapor Pressure(sd_vap_pres)
• Relative humidity inside the instrument enclosure(rh)
• Vapor Pressure (kiloPascals)(vap_pres)

SGP/SMOS/E3 - Intermittent Instrument problem

RH values drop erroneously low intermittently during time period.  Subsequent maintenance 
could find no problem and problem disappeared on its own.

• Vapor Pressure (kiloPascals)(vap_pres)
• Relative humidity inside the instrument enclosure(rh)

• Vapor Pressure (kiloPascals)(vap_pres)
• Standard Deviation of Vapor Pressure(sd_vap_pres)
• Relative humidity inside the instrument enclosure(rh)
• Standard Deviation of Relative Humidity(sd_rh)

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

SGP/SMOS/E24 - Intermittent Missing Barometric Data

Occasionally, atmospheric pressure readings are reported as missing (-9999).  The wiring 
panel of the data logger was faulty.  Panel was replaced.

• barometric pressure(bar_pres)

• barometric pressure(bar_pres)
• Standard Deviation of Barometric Pressure(sd_bar_pres)

• Maximum Barometric Pressure(max_bar_pres)
• Time of Maximum Barometric Pressure(time_max_bar_pres)
• Minimum Barometric Pressure(min_bar_pres)
• Time of Minimum Barometric Pressure(time_min_bar_pres)

SGP/SMOS/E3 - Ice Storm froze wind speed sensor

Wind speed sensor frozen or affected by ice storm during the periods
specified.

• Wind Speed (vector averaged)(wspd_va)
• Mean Wind Speed(wspd)

• Wind Speed (vector averaged)(wspd_va)
• Mean Wind Speed(wspd)

• Time of Minimum Wind Speed(time_min_wspd)
• Minimum of Wind speed(min_wspd)
• Time of Maximum Wind Speed(time_max_wspd)
• maximum wind speed (gusts)(max_wspd)

SGP/SMOS/E9 - Ice storm froze windspeed and direction sensors

Windspeed and direction sensors frozen by ice storm during the period
specified.

• Unit Vector Wind Direction(wdir)
• Wind Speed (vector averaged)(wspd_va)
• Mean Wind Speed(wspd)

• Minimum of Wind speed(min_wspd)
• Time of Minimum Wind Speed(time_min_wspd)
• Time of Maximum Wind Speed(time_max_wspd)
• maximum wind speed (gusts)(max_wspd)

• Mean Wind Speed(wspd)
• Unit Vector Wind Direction(wdir)
• Wind Speed (vector averaged)(wspd_va)

SGP/SMOS/E11 - Missing data due to ice storm

Data are missing due to severe ice storm.

• Wind Speed (vector averaged)(wspd_va)
• Time offset of tweaks from base_time(time_offset)
• Hourly precipitation(precip)
• Relative humidity inside the instrument enclosure(rh)
• Dummy altitude for Zeb(alt)
• Standard Deviation of wind direction(sd_deg)
• barometric pressure(bar_pres)
• Vapor Pressure (kiloPascals)(vap_pres)
• lon(lon)
• Unit Vector Wind Direction(wdir)
• Beam 0 Temperature(temp)
• base time(base_time)
• Mean Wind Speed(wspd)
• lat(lat)

• Time of Minimum Wind Speed(time_min_wspd)
• Time of Minimum Vapor Pressure(time_min_vap_pres)
• Maximum Temperature(max_temp)
• Time offset of tweaks from base_time(time_offset)
• Minimum Barometric Pressure(min_bar_pres)
• lon(lon)
• Time of Maximum Relative Humidity(time_max_rh)
• time(time)
• maximum wind speed (gusts)(max_wspd)
• Minimum Temperature(min_temp)
• Maximum Snow Depth(max_snow)
• Time of Maximum Wind Speed(time_max_wspd)
• Minimum of Wind speed(min_wspd)
• Time of Maximum Snow Depth(time_max_snow)
• Minimum Vapor Pressure(min_vap_pres)
• Time of Maximum Vapor Pressure(time_max_vap_pres)
• Maximum Relative Humidity(max_rh)
• Time of Minimum Snow Depth(time_min_snow)
• Maximum Vapor Pressure(max_vap_pres)
• Minimum Relative Humidity(min_rh)
• base time(base_time)
• Maximum Barometric Pressure(max_bar_pres)
• Minimum Snow Depth(min_snow_depth)
• lat(lat)
• Time of Minimum Temperature(time_min_temp)
• Time of Minimum Barometric Pressure(time_min_bar_pres)
• Time of Minimum Relative Humidity(time_min_rh)
• Time of Maximum Temperature(time_max_temp)
• Dummy altitude for Zeb(alt)
• Time of Maximum Barometric Pressure(time_max_bar_pres)

• Unit Vector Wind Direction(wdir)
• base time(base_time)
• Batter Voltage(vbat)
• Hourly precipitation(precip)
• Relative humidity inside the instrument enclosure(rh)
• Snow Depth(snow)
• Time offset of tweaks from base_time(time_offset)
• Standard Deviation of Relative Humidity(sd_rh)
• Snow Depth Sensor(snow_sen)
• barometric pressure(bar_pres)
• Dummy altitude for Zeb(alt)
• Mean Wind Speed(wspd)
• Standard Deviation of Vapor Pressure(sd_vap_pres)
• Standard Deviation of Air Temperature(sd_temp)
• Standard Deviation of Wind Speed(sd_wspd)
• lon(lon)
• Standard Deviation of wind direction(sd_deg)
• Beam 0 Temperature(temp)
• Vapor Pressure (kiloPascals)(vap_pres)
• lat(lat)
• Wind Speed (vector averaged)(wspd_va)
• Standard Deviation of Barometric Pressure(sd_bar_pres)

SGP/SMOS/E15 - Data missing due to ice storm

Data are missing due to severe ice storm.

• Maximum Temperature(max_temp)
• time(time)
• Time of Minimum Relative Humidity(time_min_rh)
• Minimum Snow Depth(min_snow_depth)
• Maximum Relative Humidity(max_rh)
• Time of Maximum Barometric Pressure(time_max_bar_pres)
• Time of Maximum Snow Depth(time_max_snow)
• Time offset of tweaks from base_time(time_offset)
• Time of Maximum Relative Humidity(time_max_rh)
• Time of Maximum Wind Speed(time_max_wspd)
• Time of Minimum Vapor Pressure(time_min_vap_pres)
• Maximum Barometric Pressure(max_bar_pres)
• Maximum Vapor Pressure(max_vap_pres)
• Maximum Snow Depth(max_snow)
• Minimum Barometric Pressure(min_bar_pres)
• Time of Minimum Barometric Pressure(time_min_bar_pres)
• Time of Maximum Temperature(time_max_temp)
• lat(lat)
• Minimum of Wind speed(min_wspd)
• maximum wind speed (gusts)(max_wspd)
• Time of Minimum Wind Speed(time_min_wspd)
• base time(base_time)
• Minimum Temperature(min_temp)
• Minimum Relative Humidity(min_rh)
• Minimum Vapor Pressure(min_vap_pres)
• lon(lon)
• Time of Minimum Temperature(time_min_temp)
• Dummy altitude for Zeb(alt)
• Time of Minimum Snow Depth(time_min_snow)
• Time of Maximum Vapor Pressure(time_max_vap_pres)

• Mean Wind Speed(wspd)
• Dummy altitude for Zeb(alt)
• Relative humidity inside the instrument enclosure(rh)
• Standard Deviation of wind direction(sd_deg)
• barometric pressure(bar_pres)
• Time offset of tweaks from base_time(time_offset)
• Hourly precipitation(precip)
• lat(lat)
• lon(lon)
• base time(base_time)
• Beam 0 Temperature(temp)
• Unit Vector Wind Direction(wdir)
• Vapor Pressure (kiloPascals)(vap_pres)
• Wind Speed (vector averaged)(wspd_va)

• lon(lon)
• Batter Voltage(vbat)
• Dummy altitude for Zeb(alt)
• Unit Vector Wind Direction(wdir)
• Standard Deviation of Vapor Pressure(sd_vap_pres)
• Beam 0 Temperature(temp)
• Hourly precipitation(precip)
• base time(base_time)
• Relative humidity inside the instrument enclosure(rh)
• Standard Deviation of Barometric Pressure(sd_bar_pres)
• Vapor Pressure (kiloPascals)(vap_pres)
• Standard Deviation of Air Temperature(sd_temp)
• Snow Depth Sensor(snow_sen)
• Standard Deviation of wind direction(sd_deg)
• barometric pressure(bar_pres)
• Mean Wind Speed(wspd)
• Wind Speed (vector averaged)(wspd_va)
• lat(lat)
• Snow Depth(snow)
• Standard Deviation of Relative Humidity(sd_rh)
• Time offset of tweaks from base_time(time_offset)
• Standard Deviation of Wind Speed(sd_wspd)

SGP/SMOS/E15 - Windspeed sensor frozen by ice storm

Windspeed sensor frozen by ice storm during the period specified.

• Time of Minimum Wind Speed(time_min_wspd)
• Time of Maximum Wind Speed(time_max_wspd)
• Minimum of Wind speed(min_wspd)
• maximum wind speed (gusts)(max_wspd)

• Wind Speed (vector averaged)(wspd_va)
• Mean Wind Speed(wspd)

• Mean Wind Speed(wspd)
• Wind Speed (vector averaged)(wspd_va)

SGP/SMOS/E4 - Ice storm froze wind speed sensor

Wind speed sensor frozen or affected by ice storm during the period
specified.

• Wind Speed (vector averaged)(wspd_va)
• Mean Wind Speed(wspd)

• Mean Wind Speed(wspd)
• Wind Speed (vector averaged)(wspd_va)

• Time of Maximum Wind Speed(time_max_wspd)
• maximum wind speed (gusts)(max_wspd)
• Minimum of Wind speed(min_wspd)
• Time of Minimum Wind Speed(time_min_wspd)

SGP/SMOS/E5 - Ice storm froze windspeed and direction sensors

Windspeed and direction sensors frozen by ice storm during the period
specified.

• Minimum of Wind speed(min_wspd)
• maximum wind speed (gusts)(max_wspd)
• Time of Minimum Wind Speed(time_min_wspd)
• Time of Maximum Wind Speed(time_max_wspd)

• Unit Vector Wind Direction(wdir)
• Mean Wind Speed(wspd)
• Wind Speed (vector averaged)(wspd_va)

• Mean Wind Speed(wspd)
• Wind Speed (vector averaged)(wspd_va)
• Unit Vector Wind Direction(wdir)

SGP/SMOS/E6 - Ice storm froze windspeed and direction sensors

Windspeed and direction sensors frozen by ice storm during the period
specified.

• Mean Wind Speed(wspd)
• Unit Vector Wind Direction(wdir)
• Wind Speed (vector averaged)(wspd_va)

• Mean Wind Speed(wspd)
• Wind Speed (vector averaged)(wspd_va)
• Unit Vector Wind Direction(wdir)

• Time of Minimum Wind Speed(time_min_wspd)
• Time of Maximum Wind Speed(time_max_wspd)
• Minimum of Wind speed(min_wspd)
• maximum wind speed (gusts)(max_wspd)

SGP/SMOS/E6 - Missing data due to ice storm

Data are missing due to severe ice storm.

• barometric pressure(bar_pres)
• Standard Deviation of wind direction(sd_deg)
• Mean Wind Speed(wspd)
• Wind Speed (vector averaged)(wspd_va)
• base time(base_time)
• Vapor Pressure (kiloPascals)(vap_pres)
• lat(lat)
• Unit Vector Wind Direction(wdir)
• Time offset of tweaks from base_time(time_offset)
• Dummy altitude for Zeb(alt)
• Hourly precipitation(precip)
• Beam 0 Temperature(temp)
• lon(lon)
• Relative humidity inside the instrument enclosure(rh)

• lat(lat)
• Unit Vector Wind Direction(wdir)
• barometric pressure(bar_pres)
• Time offset of tweaks from base_time(time_offset)
• Batter Voltage(vbat)
• Snow Depth(snow)
• Vapor Pressure (kiloPascals)(vap_pres)
• Standard Deviation of Wind Speed(sd_wspd)
• Standard Deviation of Vapor Pressure(sd_vap_pres)
• Mean Wind Speed(wspd)
• Snow Depth Sensor(snow_sen)
• Standard Deviation of Relative Humidity(sd_rh)
• Hourly precipitation(precip)
• lon(lon)
• base time(base_time)
• Dummy altitude for Zeb(alt)
• Standard Deviation of Air Temperature(sd_temp)
• Standard Deviation of Barometric Pressure(sd_bar_pres)
• Beam 0 Temperature(temp)
• Relative humidity inside the instrument enclosure(rh)
• Wind Speed (vector averaged)(wspd_va)
• Standard Deviation of wind direction(sd_deg)

• Minimum of Wind speed(min_wspd)
• Minimum Relative Humidity(min_rh)
• Minimum Temperature(min_temp)
• Time of Maximum Snow Depth(time_max_snow)
• Time of Maximum Vapor Pressure(time_max_vap_pres)
• Time of Maximum Temperature(time_max_temp)
• Time of Minimum Temperature(time_min_temp)
• lat(lat)
• maximum wind speed (gusts)(max_wspd)
• time(time)
• Time of Minimum Vapor Pressure(time_min_vap_pres)
• Time of Maximum Barometric Pressure(time_max_bar_pres)
• base time(base_time)
• Minimum Barometric Pressure(min_bar_pres)
• Maximum Barometric Pressure(max_bar_pres)
• Maximum Vapor Pressure(max_vap_pres)
• lon(lon)
• Time of Maximum Wind Speed(time_max_wspd)
• Minimum Snow Depth(min_snow_depth)
• Time offset of tweaks from base_time(time_offset)
• Time of Minimum Wind Speed(time_min_wspd)
• Time of Minimum Barometric Pressure(time_min_bar_pres)
• Maximum Snow Depth(max_snow)
• Maximum Relative Humidity(max_rh)
• Maximum Temperature(max_temp)
• Minimum Vapor Pressure(min_vap_pres)
• Time of Minimum Relative Humidity(time_min_rh)
• Time of Minimum Snow Depth(time_min_snow)
• Time of Maximum Relative Humidity(time_max_rh)
• Dummy altitude for Zeb(alt)

SGP/SMOS/E8 - Ice storm froze windspeed and direction sensors

Windspeed and direction sensors frozen by ice storm during the period
specified.

• Time of Minimum Wind Speed(time_min_wspd)
• maximum wind speed (gusts)(max_wspd)
• Minimum of Wind speed(min_wspd)
• Time of Maximum Wind Speed(time_max_wspd)

• Mean Wind Speed(wspd)
• Unit Vector Wind Direction(wdir)
• Wind Speed (vector averaged)(wspd_va)

• Wind Speed (vector averaged)(wspd_va)
• Mean Wind Speed(wspd)
• Unit Vector Wind Direction(wdir)

SGP/SMOS/E1 - Wind Data Suspect

Both wind speed and direction data are affected by icing during time period causing 
suspect readings.

• Unit Vector Wind Direction(wdir)
• Wind Speed (vector averaged)(wspd_va)
• Mean Wind Speed(wspd)

• Wind Speed (vector averaged)(wspd_va)
• Mean Wind Speed(wspd)
• Standard Deviation of wind direction(sd_deg)
• Unit Vector Wind Direction(wdir)
• Standard Deviation of Wind Speed(sd_wspd)

• Time of Minimum Wind Speed(time_min_wspd)
• Time of Maximum Wind Speed(time_max_wspd)
• maximum wind speed (gusts)(max_wspd)
• Minimum of Wind speed(min_wspd)

SGP/SMOS/E13 - Wind Data Suspect

Wind speed and direction data suspect during time period due to icing.

• maximum wind speed (gusts)(max_wspd)
• Time of Minimum Wind Speed(time_min_wspd)
• Minimum of Wind speed(min_wspd)
• Time of Maximum Wind Speed(time_max_wspd)

• Unit Vector Wind Direction(wdir)
• Wind Speed (vector averaged)(wspd_va)
• Standard Deviation of Wind Speed(sd_wspd)
• Standard Deviation of wind direction(sd_deg)
• Mean Wind Speed(wspd)

• Mean Wind Speed(wspd)
• Standard Deviation of wind direction(sd_deg)
• Wind Speed (vector averaged)(wspd_va)
• Unit Vector Wind Direction(wdir)

SGP/SMOS/E15 - Wind Data Suspect

Wind speed and direction data suspect during time period due to icing.

• Time of Minimum Wind Speed(time_min_wspd)
• Time of Maximum Wind Speed(time_max_wspd)
• Minimum of Wind speed(min_wspd)
• maximum wind speed (gusts)(max_wspd)

• Unit Vector Wind Direction(wdir)
• Standard Deviation of wind direction(sd_deg)
• Wind Speed (vector averaged)(wspd_va)
• Mean Wind Speed(wspd)

• Standard Deviation of Wind Speed(sd_wspd)
• Standard Deviation of wind direction(sd_deg)
• Unit Vector Wind Direction(wdir)
• Mean Wind Speed(wspd)
• Wind Speed (vector averaged)(wspd_va)

SGP/SMOS/E21 - Wind Data Suspect

Wind speed and direction data suspect during time period due to icing.

• Wind Speed (vector averaged)(wspd_va)
• Standard Deviation of wind direction(sd_deg)
• Mean Wind Speed(wspd)
• Unit Vector Wind Direction(wdir)

• Wind Speed (vector averaged)(wspd_va)
• Mean Wind Speed(wspd)
• Unit Vector Wind Direction(wdir)
• Standard Deviation of wind direction(sd_deg)
• Standard Deviation of Wind Speed(sd_wspd)

• Minimum of Wind speed(min_wspd)
• maximum wind speed (gusts)(max_wspd)
• Time of Maximum Wind Speed(time_max_wspd)
• Time of Minimum Wind Speed(time_min_wspd)

SGP/SMOS/E24 - Wind Data Suspect

Wind speed and direction data suspect during time period due to icing.

• Unit Vector Wind Direction(wdir)
• Wind Speed (vector averaged)(wspd_va)
• Mean Wind Speed(wspd)
• Standard Deviation of wind direction(sd_deg)

• Standard Deviation of wind direction(sd_deg)
• Standard Deviation of Wind Speed(sd_wspd)
• Mean Wind Speed(wspd)
• Wind Speed (vector averaged)(wspd_va)
• Unit Vector Wind Direction(wdir)

• Minimum of Wind speed(min_wspd)
• maximum wind speed (gusts)(max_wspd)
• Time of Maximum Wind Speed(time_max_wspd)
• Time of Minimum Wind Speed(time_min_wspd)

SGP/SMOS/E3 - Wind Data Suspect

Wind speed and direction data are suspect during time period due to icing.

• Wind Speed (vector averaged)(wspd_va)
• Unit Vector Wind Direction(wdir)
• Mean Wind Speed(wspd)
• Standard Deviation of wind direction(sd_deg)

• Mean Wind Speed(wspd)
• Standard Deviation of Wind Speed(sd_wspd)
• Unit Vector Wind Direction(wdir)
• Wind Speed (vector averaged)(wspd_va)
• Standard Deviation of wind direction(sd_deg)

• maximum wind speed (gusts)(max_wspd)
• Time of Minimum Wind Speed(time_min_wspd)
• Minimum of Wind speed(min_wspd)
• Time of Maximum Wind Speed(time_max_wspd)

SGP/SMOS/E4 - Wind Data Suspect

Wind speed and direction data suspect during time period due to icing.

• Unit Vector Wind Direction(wdir)
• Mean Wind Speed(wspd)
• Standard Deviation of wind direction(sd_deg)
• Wind Speed (vector averaged)(wspd_va)

• maximum wind speed (gusts)(max_wspd)
• Minimum of Wind speed(min_wspd)
• Time of Minimum Wind Speed(time_min_wspd)
• Time of Maximum Wind Speed(time_max_wspd)

• Unit Vector Wind Direction(wdir)
• Standard Deviation of Wind Speed(sd_wspd)
• Standard Deviation of wind direction(sd_deg)
• Mean Wind Speed(wspd)
• Wind Speed (vector averaged)(wspd_va)

SGP/SMOS/E5 - Wind Data Suspect

Wind speed and direction data are suspect during time period due to icing.

• Minimum of Wind speed(min_wspd)
• maximum wind speed (gusts)(max_wspd)
• Time of Minimum Wind Speed(time_min_wspd)
• Time of Maximum Wind Speed(time_max_wspd)

• Unit Vector Wind Direction(wdir)
• Mean Wind Speed(wspd)
• Wind Speed (vector averaged)(wspd_va)
• Standard Deviation of Wind Speed(sd_wspd)

• Mean Wind Speed(wspd)
• Wind Speed (vector averaged)(wspd_va)
• Unit Vector Wind Direction(wdir)
• Standard Deviation of wind direction(sd_deg)

SGP/SMOS/E6 - Wind Data Suspect

Wind speed and direction data suspect during time period due to icing.

• Standard Deviation of wind direction(sd_deg)
• Mean Wind Speed(wspd)
• Unit Vector Wind Direction(wdir)
• Wind Speed (vector averaged)(wspd_va)

• Mean Wind Speed(wspd)
• Wind Speed (vector averaged)(wspd_va)
• Unit Vector Wind Direction(wdir)
• Standard Deviation of Wind Speed(sd_wspd)
• Standard Deviation of wind direction(sd_deg)

• Minimum of Wind speed(min_wspd)
• Time of Maximum Wind Speed(time_max_wspd)
• Time of Minimum Wind Speed(time_min_wspd)
• maximum wind speed (gusts)(max_wspd)

SGP/SMOS/E7 - Wind Data Suspect

Wind speed and direction data suspect during time period due to icing.

• Time of Maximum Wind Speed(time_max_wspd)
• maximum wind speed (gusts)(max_wspd)
• Time of Minimum Wind Speed(time_min_wspd)
• Minimum of Wind speed(min_wspd)

• Wind Speed (vector averaged)(wspd_va)
• Unit Vector Wind Direction(wdir)
• Standard Deviation of Wind Speed(sd_wspd)
• Mean Wind Speed(wspd)
• Standard Deviation of wind direction(sd_deg)

• Standard Deviation of wind direction(sd_deg)
• Mean Wind Speed(wspd)
• Wind Speed (vector averaged)(wspd_va)
• Unit Vector Wind Direction(wdir)

SGP/SMOS/E8 - Wind Data Suspect

Wind speed and direction data suspect during time period due to icing.

• Time of Minimum Wind Speed(time_min_wspd)
• maximum wind speed (gusts)(max_wspd)
• Minimum of Wind speed(min_wspd)
• Time of Maximum Wind Speed(time_max_wspd)

• Standard Deviation of Wind Speed(sd_wspd)
• Mean Wind Speed(wspd)
• Wind Speed (vector averaged)(wspd_va)
• Unit Vector Wind Direction(wdir)
• Standard Deviation of wind direction(sd_deg)

• Standard Deviation of wind direction(sd_deg)
• Mean Wind Speed(wspd)
• Unit Vector Wind Direction(wdir)
• Wind Speed (vector averaged)(wspd_va)

SGP/SMOS/E11 - Wind Data Suspect

Wind speed and direction data suspect during time period due to icing.

• Wind Speed (vector averaged)(wspd_va)
• Standard Deviation of wind direction(sd_deg)
• Mean Wind Speed(wspd)
• Unit Vector Wind Direction(wdir)

• maximum wind speed (gusts)(max_wspd)
• Time of Minimum Wind Speed(time_min_wspd)
• Minimum of Wind speed(min_wspd)
• Time of Maximum Wind Speed(time_max_wspd)

• Unit Vector Wind Direction(wdir)
• Standard Deviation of Wind Speed(sd_wspd)
• Standard Deviation of wind direction(sd_deg)
• Mean Wind Speed(wspd)
• Wind Speed (vector averaged)(wspd_va)

SGP/SMOS/E13 - T/RH sensor failure

The T/RH sensor began to fail at high RH% values.  Since this site has an aspirated 
radiation shield, values in excess of the 104% manufacturer limit are not expected to occur due 
to rain or condensation.

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

• Standard Deviation of Relative Humidity(sd_rh)
• Standard Deviation of Vapor Pressure(sd_vap_pres)
• Vapor Pressure (kiloPascals)(vap_pres)
• Relative humidity inside the instrument enclosure(rh)

• Relative humidity inside the instrument enclosure(rh)
• Vapor Pressure (kiloPascals)(vap_pres)

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)

SGP/SMOS/E27 - Reprocess: Wind direction offset

When the SGP.E27 SMOS tower was installed it was not aligned
properly resulting in a 7 degree offset.

• Unit Vector Wind Direction(wdir)

• Unit Vector Wind Direction(wdir)

SGP/SMOS/E6 - RH Sensor failure

The RH readings on the SMOS dropped to zero or became very noisy during rain or moist 
conditions.  The sensor was replaced.

• Vapor Pressure (kiloPascals)(vap_pres)
• Relative humidity inside the instrument enclosure(rh)

• Standard Deviation of Vapor Pressure(sd_vap_pres)
• Standard Deviation of Relative Humidity(sd_rh)
• Relative humidity inside the instrument enclosure(rh)
• Vapor Pressure (kiloPascals)(vap_pres)

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

SGP/SMOS/E20 - Sensor failure

Wind direction values were nearly constant around a value of 15 degrees.  Problem was 
caused by a lightning strike which damaged the sensor.

• Standard Deviation of wind direction(sd_deg)
• Unit Vector Wind Direction(wdir)

• Unit Vector Wind Direction(wdir)
• Standard Deviation of wind direction(sd_deg)

SGP/SMOS/E21 - RH values incorrect

The RH sensor was failing intermittently from:
08/06/2005 @ 1221GMT - 08/17/2005 @ 0309GMT.

It failed continuously from:
08/17/2005 @ 0310GMT - 08/21/2005 @ 1600 GMT.

It failed intermittently from:
08/21/2005 @ 1601GMT - 08/22/2005 @ 0742 GMT.

• Vapor Pressure (kiloPascals)(vap_pres)
• Relative humidity inside the instrument enclosure(rh)

• Vapor Pressure (kiloPascals)(vap_pres)
• Standard Deviation of Vapor Pressure(sd_vap_pres)
• Standard Deviation of Relative Humidity(sd_rh)
• Relative humidity inside the instrument enclosure(rh)

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

SGP/SMOS/E21 - RH Data Intermittently Poor Quality

The RH sensor failed.

• Vapor Pressure (kiloPascals)(vap_pres)
• Relative humidity inside the instrument enclosure(rh)

• Vapor Pressure (kiloPascals)(vap_pres)
• Standard Deviation of Vapor Pressure(sd_vap_pres)
• Relative humidity inside the instrument enclosure(rh)
• Standard Deviation of Wind Speed(sd_wspd)

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

SGP/SMOS/E21 - Barometric Data Incorrect

Barometer failed and was replaced.

• barometric pressure(bar_pres)

• barometric pressure(bar_pres)
• Standard Deviation of Barometric Pressure(sd_bar_pres)

• Maximum Barometric Pressure(max_bar_pres)
• Time of Maximum Barometric Pressure(time_max_bar_pres)
• Minimum Barometric Pressure(min_bar_pres)
• Time of Minimum Barometric Pressure(time_min_bar_pres)

SGP/SMOS/E6 - SMOS Wind direction low

The wind direction reported by the SMOS went from being 7 degrees too low at the beginning 
of 2005 (the 7 degrees is a result of misalignment of the SMOS tower by 7 degrees) to 
15-20 degrees too small by November 2005.

The wind sensor was replaced, bringing the wind direction back to being 7
degrees too small.

• Unit Vector Wind Direction(wdir)

• Unit Vector Wind Direction(wdir)

SGP/SMOS/E1 - Sensor failure, wind direction data incorrect.

The wind sensor failed on direction.  Data show wind was consistently from one direction.

• Unit Vector Wind Direction(wdir)
• Wind Speed (vector averaged)(wspd_va)
• Standard Deviation of wind direction(sd_deg)

• Wind Speed (vector averaged)(wspd_va)
• Standard Deviation of wind direction(sd_deg)
• Unit Vector Wind Direction(wdir)

SGP/SMOS/E21 - RH values above max limit during high humidity situations.

RH values intermittently exceeding the maximum allowed during high RH events.

• Vapor Pressure (kiloPascals)(vap_pres)
• Relative humidity inside the instrument enclosure(rh)

• Vapor Pressure (kiloPascals)(vap_pres)
• Standard Deviation of Vapor Pressure(sd_vap_pres)
• Standard Deviation of Relative Humidity(sd_rh)
• Relative humidity inside the instrument enclosure(rh)

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

SGP/SMOS/E27 - Wind Direction Data Incorrect

The wind monitor was frozen in one position during the time period.  Wind direction data 
is not representative of the actual conditions.

• Unit Vector Wind Direction(wdir)
• Standard Deviation of wind direction(sd_deg)

• Standard Deviation of wind direction(sd_deg)
• Unit Vector Wind Direction(wdir)

SGP/SMOS/E15 - Barometer data missing or incorrect

After the data logger operating system upgrade on 01/03 barometric pressure was missing or 
reporting very low values.

• Maximum Barometric Pressure(max_bar_pres)
• Time of Minimum Barometric Pressure(time_min_bar_pres)
• Time of Maximum Barometric Pressure(time_max_bar_pres)
• Minimum Barometric Pressure(min_bar_pres)

• barometric pressure(bar_pres)

• Standard Deviation of Barometric Pressure(sd_bar_pres)
• barometric pressure(bar_pres)

SGP/SMOS/E3 - RH values above max limit during high humidity situations

RH% values intremittently exceeded maximum allowed during high humidity situations.  
Sensor was replaced.

• Vapor Pressure (kiloPascals)(vap_pres)
• Relative humidity inside the instrument enclosure(rh)

• Vapor Pressure (kiloPascals)(vap_pres)
• Standard Deviation of Vapor Pressure(sd_vap_pres)
• Relative humidity inside the instrument enclosure(rh)
• Standard Deviation of Relative Humidity(sd_rh)

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

SGP/SMOS/E11  - Reprocess: Barometer data factor of 10 too high.

The program was modified and an incorrect multiplier was used so that the barometer data 
was reported in hPa instead of kPa.

• barometric pressure(bar_pres)

• Minimum Barometric Pressure(min_bar_pres)
• Maximum Barometric Pressure(max_bar_pres)

• Standard Deviation of Barometric Pressure(sd_bar_pres)
• barometric pressure(bar_pres)

SGP/SMOS/E21 - RH values incorrect

RH% values artificially low due to sensor failure.  Sensor was replaced.

• Vapor Pressure (kiloPascals)(vap_pres)
• Relative humidity inside the instrument enclosure(rh)

• Vapor Pressure (kiloPascals)(vap_pres)
• Standard Deviation of Vapor Pressure(sd_vap_pres)
• Standard Deviation of Relative Humidity(sd_rh)
• Relative humidity inside the instrument enclosure(rh)

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

SGP/SMOS/E15 - Wind Direction Values Intermittently Incorrect

Intermittently the wind direction was reported at exactly 353 degrees for long time 
periods.

• Standard Deviation of wind direction(sd_deg)
• Unit Vector Wind Direction(wdir)

• Standard Deviation of wind direction(sd_deg)
• Unit Vector Wind Direction(wdir)

SGP/SMOS/E15 - Reprocess: Barometer data a factor of 10 too high.

The program was modified and an incorrect multiplier was used so that the barometer data 
was reported in hPa instead of kPa.

• Maximum Barometric Pressure(max_bar_pres)
• Minimum Barometric Pressure(min_bar_pres)

• barometric pressure(bar_pres)

• Standard Deviation of Barometric Pressure(sd_bar_pres)
• barometric pressure(bar_pres)

SGP/SMOS/E13 - Reprocess: Barometer data a factor of 10 too high.

The program was modified and an incorrect multiplier was used so that the barometer data 
was reported in hPa instead of kPa.

• Minimum Barometric Pressure(min_bar_pres)
• Maximum Barometric Pressure(max_bar_pres)

• barometric pressure(bar_pres)
• Standard Deviation of Barometric Pressure(sd_bar_pres)

• barometric pressure(bar_pres)

SGP/SMOS/E13 -Reprocess:  Wind Speed Values Excessively High

The slope value to convert the rotation of the propeller from engineering units to 
meters/second was incorrectly given as .098 when it should have been .0049.  Conversion was 
converting hertz to meters/second when it should have been converting rpm's to meters/second.

• maximum wind speed (gusts)(max_wspd)
• Minimum of Wind speed(min_wspd)

• Mean Wind Speed(wspd)

SGP/SMOS/E8 - Incorrect Temp, RH and windspeed

Bovines chewed through the T/RH and wind speed and direction cable.

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

• Beam 0 Temperature(temp)
• Wind Speed (vector averaged)(wspd_va)
• Standard Deviation of Vapor Pressure(sd_vap_pres)
• Vapor Pressure (kiloPascals)(vap_pres)
• Standard Deviation of Air Temperature(sd_temp)
• Standard Deviation of Wind Speed(sd_wspd)
• Mean Wind Speed(wspd)
• Relative humidity inside the instrument enclosure(rh)
• Standard Deviation of Relative Humidity(sd_rh)
• Unit Vector Wind Direction(wdir)
• Standard Deviation of wind direction(sd_deg)

• Mean Wind Speed(wspd)
• Wind Speed (vector averaged)(wspd_va)
• Relative humidity inside the instrument enclosure(rh)
• Vapor Pressure (kiloPascals)(vap_pres)
• Standard Deviation of wind direction(sd_deg)
• Unit Vector Wind Direction(wdir)
• Beam 0 Temperature(temp)

SGP/SMOS/E27 - Rain fall data incorrect

Rainfall data incorrect.  Technicians found gauge plugged and full of water.  Gauge was 
unplugged and all water ran through funnel.  Data appear to be measuring a massive deluge 
when in fact no rain was occurring.

• Hourly precipitation(precip)

• Hourly precipitation(precip)

SGP/SMOS/E21 - Wind Monitor Impacting Bird Spikes

The wind direction is flatlining and wind speed occasionally does not compare well with 
co-located ECOR.  Problems with the height of the mount caused the vane to impact the bird 
deterrent spikes and "catch".  Symptoms appear as winds coming out of a 255 to 270 
direction for long period of times.  The wind speed values are also affected as the wind 
monitor is no longer normal to the wind direction.

• Mean Wind Speed(wspd)
• Unit Vector Wind Direction(wdir)
• Wind Speed (vector averaged)(wspd_va)

• Wind Speed (vector averaged)(wspd_va)
• Mean Wind Speed(wspd)
• Standard Deviation of Wind Speed(sd_wspd)
• Unit Vector Wind Direction(wdir)

• Minimum of Wind speed(min_wspd)
• Time of Minimum Wind Speed(time_min_wspd)
• maximum wind speed (gusts)(max_wspd)
• Time of Maximum Wind Speed(time_max_wspd)

SGP/SMOS/E27 - Rainfall Data Suspect

Rainfall during this time period was suspect as the gauge was found plugged on 05/09/2006 
at 15:38 GMT.  Last check of site occurred on 04/26/2006 @ 16:35 GMT.  Any rainfall data 
collected, whether the data is 0 or other than zero is suspect.

• Hourly precipitation(precip)

• Hourly precipitation(precip)

SGP/SMOS/E3 - Rainfall Data Suspect

Rainfall during this time period was suspect as the gauge was found plugged on 07/12/2006. 
 Last check of site occurred on 06/28/2006.  Any rainfall data collected, whether the 
data is 0 or other than zero is suspect.

• Hourly precipitation(precip)

• Hourly precipitation(precip)

SGP/SMOS/E7 - Rainfall Data Suspect

Rainfall during this time period was suspect as the gauge was found plugged on 11/28/2006. 
 Last check of site occurred on 11/14/2006.  Any rainfall data collected, whether the 
data is 0 or other than zero is suspect.

• Hourly precipitation(precip)

• Hourly precipitation(precip)

SGP/SMOS/E3 - Incorrect Offset for Wind Directon

An incorrect offset of 7 degrees was subtracted from the wind direction to correct for 
misalignment of the towers to true north. The wind direction data may be corrected but the 
vector averaged wind speed cannot. Subsequent audits have highlighted problems with past 
measurements of tower alignments.  All corrections to wind direction are being removed and 
Users are directed to view the Instrument Handbook for a table listing all tower 
alignment deviations from true north.  Users can adjust the data at their discretion.

• Unit Vector Wind Direction(wdir)
• Wind Speed (vector averaged)(wspd_va)

• Wind Speed (vector averaged)(wspd_va)
• Unit Vector Wind Direction(wdir)

SGP/SMOS/E4 - Incorrect Offset for Wind Directon

An incorrect offset of 7 degrees was subtracted from the wind direction to correct for 
misalignment of the towers to true north. The wind direction data may be corrected but the 
vector averaged wind speed cannot. Subsequent audits have highlighted problems with past 
measurements of tower alignments.  All corrections to wind direction are being removed and 
Users are directed to view the Instrument Handbook for a table listing all tower 
alignment deviations from true north.  Users can adjust the data at their discretion.

• Wind Speed (vector averaged)(wspd_va)
• Unit Vector Wind Direction(wdir)

• Unit Vector Wind Direction(wdir)
• Wind Speed (vector averaged)(wspd_va)

SGP/SMOS/E6 - Incorrect Offset for Wind Directon

An incorrect offset of 7 degrees was subtracted from the wind direction to correct for 
misalignment of the towers to true north. The wind direction data may be corrected but the 
vector averaged wind speed cannot. Subsequent audits have highlighted problems with past 
measurements of tower alignments.  All corrections to wind direction are being removed and 
Users are directed to view the Instrument Handbook for a table listing all tower 
alignment deviations from true north.  Users can adjust the data at their discretion.

• Unit Vector Wind Direction(wdir)
• Wind Speed (vector averaged)(wspd_va)

• Wind Speed (vector averaged)(wspd_va)
• Unit Vector Wind Direction(wdir)

SGP/SMOS/E7 - Incorrect Offset for Wind Directon

An incorrect offset of 6 degrees was subtracted from the wind direction to correct for 
misalignment of the towers to true north. The wind direction data may be corrected but the 
vector averaged wind speed cannot. Subsequent audits have highlighted problems with past 
measurements of tower alignments.  All corrections to wind direction are being removed and 
Users are directed to view the Instrument Handbook for a table listing all tower 
alignment deviations from true north.  Users can adjust the data at their discretion.

• Wind Speed (vector averaged)(wspd_va)
• Unit Vector Wind Direction(wdir)

• Wind Speed (vector averaged)(wspd_va)
• Unit Vector Wind Direction(wdir)

SGP/SMOS/E27 - Incorrect Offset for Wind Directon

An incorrect offset of 7 degrees was subtracted from the wind direction to correct for 
misalignment of the towers to true north. The wind direction data may be corrected but the 
vector averaged wind speed cannot. Subsequent audits have highlighted problems with past 
measurements of tower alignments.  All corrections to wind direction are being removed and 
Users are directed to view the Instrument Handbook for a table listing all tower 
alignment deviations from true north.  Users can adjust the data at their discretion.

• Unit Vector Wind Direction(wdir)
• Wind Speed (vector averaged)(wspd_va)

• Unit Vector Wind Direction(wdir)
• Wind Speed (vector averaged)(wspd_va)

SGP/SMOS/E27 - Incorrect Offset for Wind Directon

An incorrect offset of 7 degrees was added to the wind direction to
   correct for misalignment of the towers to true north. The wind direction data may be 
corrected but the vector averaged wind speed cannot. Subsequent audits have highlighted 
problems with past measurements of tower alignments.  All corrections to wind direction are 
being removed and Users are directed to view the Instrument Handbook for a table listing 
all tower alignment deviations from true north.  Users can adjust the data at their 
discretion.

• Unit Vector Wind Direction(wdir)
• Wind Speed (vector averaged)(wspd_va)

• Unit Vector Wind Direction(wdir)
• Wind Speed (vector averaged)(wspd_va)

SGP/SMOS/E1 - Missing data

Data are missing and unrecoverable

• Beam 0 Temperature(temp)
• Time offset of tweaks from base_time(time_offset)
• Relative humidity inside the instrument enclosure(rh)
• Dummy altitude for Zeb(alt)
• base time(base_time)
• Unit Vector Wind Direction(wdir)
• Mean Wind Speed(wspd)
• Hourly precipitation(precip)
• Vapor Pressure (kiloPascals)(vap_pres)
• lon(lon)
• Standard Deviation of wind direction(sd_deg)
• barometric pressure(bar_pres)
• Wind Speed (vector averaged)(wspd_va)
• lat(lat)

• Batter Voltage(vbat)
• Dummy altitude for Zeb(alt)
• Standard Deviation of Wind Speed(sd_wspd)
• lon(lon)
• Relative humidity inside the instrument enclosure(rh)
• Time offset of tweaks from base_time(time_offset)
• Snow Depth Sensor(snow_sen)
• Hourly precipitation(precip)
• base time(base_time)
• Unit Vector Wind Direction(wdir)
• Standard Deviation of Air Temperature(sd_temp)
• Snow Depth(snow)
• barometric pressure(bar_pres)
• Vapor Pressure (kiloPascals)(vap_pres)
• Mean Wind Speed(wspd)
• Standard Deviation of Vapor Pressure(sd_vap_pres)
• lat(lat)
• Wind Speed (vector averaged)(wspd_va)
• Standard Deviation of Relative Humidity(sd_rh)
• Beam 0 Temperature(temp)
• Standard Deviation of Barometric Pressure(sd_bar_pres)
• Standard Deviation of wind direction(sd_deg)

• Time of Minimum Vapor Pressure(time_min_vap_pres)
• Maximum Relative Humidity(max_rh)
• base time(base_time)
• Maximum Vapor Pressure(max_vap_pres)
• Time of Minimum Snow Depth(time_min_snow)
• lon(lon)
• Maximum Temperature(max_temp)
• Maximum Barometric Pressure(max_bar_pres)
• Minimum Barometric Pressure(min_bar_pres)
• Time of Minimum Relative Humidity(time_min_rh)
• Time of Maximum Vapor Pressure(time_max_vap_pres)
• Time of Minimum Wind Speed(time_min_wspd)
• Time of Maximum Wind Speed(time_max_wspd)
• Maximum Snow Depth(max_snow)
• Time of Maximum Temperature(time_max_temp)
• Minimum of Wind speed(min_wspd)
• Time of Minimum Barometric Pressure(time_min_bar_pres)
• Minimum Temperature(min_temp)
• time(time)
• Time of Maximum Barometric Pressure(time_max_bar_pres)
• Minimum Relative Humidity(min_rh)
• Time of Maximum Relative Humidity(time_max_rh)
• Dummy altitude for Zeb(alt)
• Time of Maximum Snow Depth(time_max_snow)
• Minimum Vapor Pressure(min_vap_pres)
• Time offset of tweaks from base_time(time_offset)
• lat(lat)
• Minimum Snow Depth(min_snow_depth)
• maximum wind speed (gusts)(max_wspd)
• Time of Minimum Temperature(time_min_temp)

SGP/SMOS/E3 - Missing data

Data are missing and unrecoverable

• Wind Speed (vector averaged)(wspd_va)
• lat(lat)
• lon(lon)
• barometric pressure(bar_pres)
• Vapor Pressure (kiloPascals)(vap_pres)
• base time(base_time)
• Standard Deviation of wind direction(sd_deg)
• Hourly precipitation(precip)
• Relative humidity inside the instrument enclosure(rh)
• Dummy altitude for Zeb(alt)
• Time offset of tweaks from base_time(time_offset)
• Beam 0 Temperature(temp)
• Unit Vector Wind Direction(wdir)
• Mean Wind Speed(wspd)

• Standard Deviation of Barometric Pressure(sd_bar_pres)
• Unit Vector Wind Direction(wdir)
• Wind Speed (vector averaged)(wspd_va)
• Batter Voltage(vbat)
• Snow Depth Sensor(snow_sen)
• lat(lat)
• Standard Deviation of wind direction(sd_deg)
• barometric pressure(bar_pres)
• Mean Wind Speed(wspd)
• base time(base_time)
• Standard Deviation of Relative Humidity(sd_rh)
• Standard Deviation of Air Temperature(sd_temp)
• Vapor Pressure (kiloPascals)(vap_pres)
• Standard Deviation of Vapor Pressure(sd_vap_pres)
• Hourly precipitation(precip)
• Snow Depth(snow)
• Standard Deviation of Wind Speed(sd_wspd)
• Beam 0 Temperature(temp)
• Dummy altitude for Zeb(alt)
• Relative humidity inside the instrument enclosure(rh)
• lon(lon)
• Time offset of tweaks from base_time(time_offset)

• Maximum Vapor Pressure(max_vap_pres)
• Time of Minimum Vapor Pressure(time_min_vap_pres)
• Time of Maximum Temperature(time_max_temp)
• Time offset of tweaks from base_time(time_offset)
• maximum wind speed (gusts)(max_wspd)
• lat(lat)
• Maximum Snow Depth(max_snow)
• Minimum of Wind speed(min_wspd)
• Minimum Temperature(min_temp)
• Time of Maximum Barometric Pressure(time_max_bar_pres)
• Time of Minimum Snow Depth(time_min_snow)
• Minimum Vapor Pressure(min_vap_pres)
• Minimum Barometric Pressure(min_bar_pres)
• Minimum Relative Humidity(min_rh)
• Time of Minimum Relative Humidity(time_min_rh)
• Maximum Relative Humidity(max_rh)
• Time of Minimum Barometric Pressure(time_min_bar_pres)
• Time of Maximum Vapor Pressure(time_max_vap_pres)
• Minimum Snow Depth(min_snow_depth)
• Time of Maximum Wind Speed(time_max_wspd)
• Maximum Barometric Pressure(max_bar_pres)
• time(time)
• Dummy altitude for Zeb(alt)
• Time of Maximum Snow Depth(time_max_snow)
• lon(lon)
• base time(base_time)
• Time of Maximum Relative Humidity(time_max_rh)
• Time of Minimum Wind Speed(time_min_wspd)
• Time of Minimum Temperature(time_min_temp)
• Maximum Temperature(max_temp)

SGP/SMOS/E4 - Missing data

Data are missing and unrecoverable

• Beam 0 Temperature(temp)
• lat(lat)
• Time offset of tweaks from base_time(time_offset)
• Mean Wind Speed(wspd)
• base time(base_time)
• barometric pressure(bar_pres)
• Hourly precipitation(precip)
• Standard Deviation of wind direction(sd_deg)
• Wind Speed (vector averaged)(wspd_va)
• Vapor Pressure (kiloPascals)(vap_pres)
• Unit Vector Wind Direction(wdir)
• Dummy altitude for Zeb(alt)
• Relative humidity inside the instrument enclosure(rh)
• lon(lon)

• Time offset of tweaks from base_time(time_offset)
• lon(lon)
• Vapor Pressure (kiloPascals)(vap_pres)
• Standard Deviation of Air Temperature(sd_temp)
• Hourly precipitation(precip)
• Snow Depth Sensor(snow_sen)
• barometric pressure(bar_pres)
• Relative humidity inside the instrument enclosure(rh)
• Dummy altitude for Zeb(alt)
• Wind Speed (vector averaged)(wspd_va)
• Unit Vector Wind Direction(wdir)
• Snow Depth(snow)
• Standard Deviation of Vapor Pressure(sd_vap_pres)
• Batter Voltage(vbat)
• Standard Deviation of Wind Speed(sd_wspd)
• Standard Deviation of wind direction(sd_deg)
• Mean Wind Speed(wspd)
• base time(base_time)
• Beam 0 Temperature(temp)
• Standard Deviation of Relative Humidity(sd_rh)
• Standard Deviation of Barometric Pressure(sd_bar_pres)
• lat(lat)

• Time offset of tweaks from base_time(time_offset)
• Maximum Relative Humidity(max_rh)
• Time of Minimum Relative Humidity(time_min_rh)
• Maximum Snow Depth(max_snow)
• Time of Minimum Wind Speed(time_min_wspd)
• Minimum Vapor Pressure(min_vap_pres)
• Time of Maximum Relative Humidity(time_max_rh)
• Minimum of Wind speed(min_wspd)
• Time of Maximum Temperature(time_max_temp)
• Minimum Relative Humidity(min_rh)
• lon(lon)
• Maximum Barometric Pressure(max_bar_pres)
• lat(lat)
• Minimum Barometric Pressure(min_bar_pres)
• maximum wind speed (gusts)(max_wspd)
• Time of Minimum Temperature(time_min_temp)
• Time of Minimum Vapor Pressure(time_min_vap_pres)
• Time of Maximum Barometric Pressure(time_max_bar_pres)
• Time of Maximum Wind Speed(time_max_wspd)
• time(time)
• Time of Maximum Snow Depth(time_max_snow)
• Maximum Vapor Pressure(max_vap_pres)
• Time of Minimum Barometric Pressure(time_min_bar_pres)
• Maximum Temperature(max_temp)
• Minimum Snow Depth(min_snow_depth)
• base time(base_time)
• Time of Minimum Snow Depth(time_min_snow)
• Minimum Temperature(min_temp)
• Dummy altitude for Zeb(alt)
• Time of Maximum Vapor Pressure(time_max_vap_pres)

SGP/SMOS/E5 - Missing data

Data are missing and unrecoverable

• Minimum Barometric Pressure(min_bar_pres)
• Time of Maximum Barometric Pressure(time_max_bar_pres)
• base time(base_time)
• Time of Minimum Vapor Pressure(time_min_vap_pres)
• Time of Maximum Wind Speed(time_max_wspd)
• Minimum of Wind speed(min_wspd)
• Maximum Barometric Pressure(max_bar_pres)
• Time of Maximum Relative Humidity(time_max_rh)
• lon(lon)
• Time offset of tweaks from base_time(time_offset)
• Time of Minimum Barometric Pressure(time_min_bar_pres)
• time(time)
• Minimum Temperature(min_temp)
• Time of Minimum Relative Humidity(time_min_rh)
• lat(lat)
• Maximum Temperature(max_temp)
• Dummy altitude for Zeb(alt)
• Time of Maximum Temperature(time_max_temp)
• Maximum Relative Humidity(max_rh)
• Time of Minimum Temperature(time_min_temp)
• Minimum Vapor Pressure(min_vap_pres)
• Time of Minimum Snow Depth(time_min_snow)
• Time of Maximum Snow Depth(time_max_snow)
• Minimum Snow Depth(min_snow_depth)
• maximum wind speed (gusts)(max_wspd)
• Minimum Relative Humidity(min_rh)
• Time of Maximum Vapor Pressure(time_max_vap_pres)
• Maximum Snow Depth(max_snow)
• Time of Minimum Wind Speed(time_min_wspd)
• Maximum Vapor Pressure(max_vap_pres)

• Standard Deviation of Relative Humidity(sd_rh)
• Beam 0 Temperature(temp)
• Mean Wind Speed(wspd)
• Standard Deviation of Barometric Pressure(sd_bar_pres)
• Unit Vector Wind Direction(wdir)
• barometric pressure(bar_pres)
• Hourly precipitation(precip)
• Standard Deviation of Vapor Pressure(sd_vap_pres)
• Relative humidity inside the instrument enclosure(rh)
• Dummy altitude for Zeb(alt)
• Vapor Pressure (kiloPascals)(vap_pres)
• lat(lat)
• Snow Depth Sensor(snow_sen)
• Standard Deviation of wind direction(sd_deg)
• Time offset of tweaks from base_time(time_offset)
• Batter Voltage(vbat)
• Wind Speed (vector averaged)(wspd_va)
• Standard Deviation of Wind Speed(sd_wspd)
• Standard Deviation of Air Temperature(sd_temp)
• Snow Depth(snow)
• lon(lon)
• base time(base_time)

• base time(base_time)
• Wind Speed (vector averaged)(wspd_va)
• Beam 0 Temperature(temp)
• Hourly precipitation(precip)
• Relative humidity inside the instrument enclosure(rh)
• Mean Wind Speed(wspd)
• lon(lon)
• Vapor Pressure (kiloPascals)(vap_pres)
• barometric pressure(bar_pres)
• Dummy altitude for Zeb(alt)
• Unit Vector Wind Direction(wdir)
• Time offset of tweaks from base_time(time_offset)
• Standard Deviation of wind direction(sd_deg)
• lat(lat)

SGP/SMOS/E7 - Missing data

Data are missing and unrecoverable

• Maximum Relative Humidity(max_rh)
• Time of Maximum Wind Speed(time_max_wspd)
• Time of Maximum Vapor Pressure(time_max_vap_pres)
• Time of Maximum Temperature(time_max_temp)
• Time of Maximum Relative Humidity(time_max_rh)
• Maximum Barometric Pressure(max_bar_pres)
• Maximum Vapor Pressure(max_vap_pres)
• Time of Minimum Relative Humidity(time_min_rh)
• Minimum Snow Depth(min_snow_depth)
• Time of Maximum Barometric Pressure(time_max_bar_pres)
• Time of Minimum Barometric Pressure(time_min_bar_pres)
• Maximum Snow Depth(max_snow)
• Minimum Temperature(min_temp)
• lat(lat)
• Maximum Temperature(max_temp)
• Time of Minimum Snow Depth(time_min_snow)
• Dummy altitude for Zeb(alt)
• Minimum Relative Humidity(min_rh)
• Time of Maximum Snow Depth(time_max_snow)
• Time of Minimum Temperature(time_min_temp)
• maximum wind speed (gusts)(max_wspd)
• Time of Minimum Vapor Pressure(time_min_vap_pres)
• time(time)
• base time(base_time)
• lon(lon)
• Time of Minimum Wind Speed(time_min_wspd)
• Time offset of tweaks from base_time(time_offset)
• Minimum Vapor Pressure(min_vap_pres)
• Minimum Barometric Pressure(min_bar_pres)
• Minimum of Wind speed(min_wspd)

• Unit Vector Wind Direction(wdir)
• Standard Deviation of Relative Humidity(sd_rh)
• Batter Voltage(vbat)
• Standard Deviation of Air Temperature(sd_temp)
• Vapor Pressure (kiloPascals)(vap_pres)
• lon(lon)
• Standard Deviation of Barometric Pressure(sd_bar_pres)
• base time(base_time)
• Relative humidity inside the instrument enclosure(rh)
• Hourly precipitation(precip)
• Snow Depth Sensor(snow_sen)
• lat(lat)
• Beam 0 Temperature(temp)
• Time offset of tweaks from base_time(time_offset)
• Wind Speed (vector averaged)(wspd_va)
• Standard Deviation of Wind Speed(sd_wspd)
• Dummy altitude for Zeb(alt)
• Snow Depth(snow)
• Mean Wind Speed(wspd)
• barometric pressure(bar_pres)
• Standard Deviation of Vapor Pressure(sd_vap_pres)
• Standard Deviation of wind direction(sd_deg)

• Dummy altitude for Zeb(alt)
• Beam 0 Temperature(temp)
• Hourly precipitation(precip)
• lat(lat)
• Unit Vector Wind Direction(wdir)
• Time offset of tweaks from base_time(time_offset)
• Mean Wind Speed(wspd)
• Vapor Pressure (kiloPascals)(vap_pres)
• Wind Speed (vector averaged)(wspd_va)
• barometric pressure(bar_pres)
• Relative humidity inside the instrument enclosure(rh)
• Standard Deviation of wind direction(sd_deg)
• base time(base_time)
• lon(lon)

SGP/SMOS/E20 - Missing Data

Data are missing and unrecoverable

• Mean Wind Speed(wspd)
• lat(lat)
• Wind Speed (vector averaged)(wspd_va)
• barometric pressure(bar_pres)
• lon(lon)
• Unit Vector Wind Direction(wdir)
• Dummy altitude for Zeb(alt)
• Vapor Pressure (kiloPascals)(vap_pres)
• Standard Deviation of wind direction(sd_deg)
• base time(base_time)
• Beam 0 Temperature(temp)
• Hourly precipitation(precip)
• Time offset of tweaks from base_time(time_offset)
• Relative humidity inside the instrument enclosure(rh)

• Maximum Relative Humidity(max_rh)
• Maximum Barometric Pressure(max_bar_pres)
• Time of Minimum Vapor Pressure(time_min_vap_pres)
• Time of Maximum Relative Humidity(time_max_rh)
• Maximum Temperature(max_temp)
• Maximum Snow Depth(max_snow)
• Minimum Vapor Pressure(min_vap_pres)
• lat(lat)
• Time of Maximum Vapor Pressure(time_max_vap_pres)
• Time offset of tweaks from base_time(time_offset)
• 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)
• Minimum Barometric Pressure(min_bar_pres)
• Time of Minimum Barometric Pressure(time_min_bar_pres)
• time(time)
• maximum wind speed (gusts)(max_wspd)
• base time(base_time)
• Minimum Temperature(min_temp)
• Minimum of Wind speed(min_wspd)
• Time of Minimum Wind Speed(time_min_wspd)
• Time of Maximum Snow Depth(time_max_snow)
• lon(lon)
• Dummy altitude for Zeb(alt)
• Time of Maximum Barometric Pressure(time_max_bar_pres)
• Minimum Relative Humidity(min_rh)
• Time of Minimum Snow Depth(time_min_snow)
• Minimum Snow Depth(min_snow_depth)

• Wind Speed (vector averaged)(wspd_va)
• Unit Vector Wind Direction(wdir)
• Dummy altitude for Zeb(alt)
• Standard Deviation of Air Temperature(sd_temp)
• Relative humidity inside the instrument enclosure(rh)
• Batter Voltage(vbat)
• base time(base_time)
• Mean Wind Speed(wspd)
• Standard Deviation of Barometric Pressure(sd_bar_pres)
• Standard Deviation of Wind Speed(sd_wspd)
• Snow Depth(snow)
• barometric pressure(bar_pres)
• Beam 0 Temperature(temp)
• Snow Depth Sensor(snow_sen)
• lon(lon)
• Standard Deviation of wind direction(sd_deg)
• Time offset of tweaks from base_time(time_offset)
• lat(lat)
• Vapor Pressure (kiloPascals)(vap_pres)
• Hourly precipitation(precip)
• Standard Deviation of Relative Humidity(sd_rh)
• Standard Deviation of Vapor Pressure(sd_vap_pres)

SGP/SMOS/E15 - Missing Data

Data are missing and unrecoverable

• Maximum Temperature(max_temp)
• time(time)
• Time of Minimum Relative Humidity(time_min_rh)
• Minimum Snow Depth(min_snow_depth)
• Maximum Relative Humidity(max_rh)
• Time of Maximum Barometric Pressure(time_max_bar_pres)
• Time of Maximum Snow Depth(time_max_snow)
• Time offset of tweaks from base_time(time_offset)
• Time of Maximum Relative Humidity(time_max_rh)
• Time of Maximum Wind Speed(time_max_wspd)
• Time of Minimum Vapor Pressure(time_min_vap_pres)
• Maximum Barometric Pressure(max_bar_pres)
• Maximum Vapor Pressure(max_vap_pres)
• Maximum Snow Depth(max_snow)
• Minimum Barometric Pressure(min_bar_pres)
• Time of Minimum Barometric Pressure(time_min_bar_pres)
• Time of Maximum Temperature(time_max_temp)
• lat(lat)
• Minimum of Wind speed(min_wspd)
• maximum wind speed (gusts)(max_wspd)
• Time of Minimum Wind Speed(time_min_wspd)
• base time(base_time)
• Minimum Temperature(min_temp)
• Minimum Relative Humidity(min_rh)
• Minimum Vapor Pressure(min_vap_pres)
• lon(lon)
• Time of Minimum Temperature(time_min_temp)
• Dummy altitude for Zeb(alt)
• Time of Minimum Snow Depth(time_min_snow)
• Time of Maximum Vapor Pressure(time_max_vap_pres)

• Mean Wind Speed(wspd)
• Dummy altitude for Zeb(alt)
• Relative humidity inside the instrument enclosure(rh)
• Standard Deviation of wind direction(sd_deg)
• barometric pressure(bar_pres)
• Time offset of tweaks from base_time(time_offset)
• Hourly precipitation(precip)
• lat(lat)
• lon(lon)
• base time(base_time)
• Beam 0 Temperature(temp)
• Unit Vector Wind Direction(wdir)
• Vapor Pressure (kiloPascals)(vap_pres)
• Wind Speed (vector averaged)(wspd_va)

• lon(lon)
• Batter Voltage(vbat)
• Dummy altitude for Zeb(alt)
• Unit Vector Wind Direction(wdir)
• Standard Deviation of Vapor Pressure(sd_vap_pres)
• Beam 0 Temperature(temp)
• Hourly precipitation(precip)
• base time(base_time)
• Relative humidity inside the instrument enclosure(rh)
• Standard Deviation of Barometric Pressure(sd_bar_pres)
• Vapor Pressure (kiloPascals)(vap_pres)
• Standard Deviation of Air Temperature(sd_temp)
• Snow Depth Sensor(snow_sen)
• Standard Deviation of wind direction(sd_deg)
• barometric pressure(bar_pres)
• Mean Wind Speed(wspd)
• Wind Speed (vector averaged)(wspd_va)
• lat(lat)
• Snow Depth(snow)
• Standard Deviation of Relative Humidity(sd_rh)
• Time offset of tweaks from base_time(time_offset)
• Standard Deviation of Wind Speed(sd_wspd)

SGP/SMOS/E8 - Missing Data

Data are missing and unrecoverable

• Minimum Snow Depth(min_snow_depth)
• time(time)
• Time of Maximum Snow Depth(time_max_snow)
• Time of Minimum Temperature(time_min_temp)
• Minimum Vapor Pressure(min_vap_pres)
• Time of Minimum Barometric Pressure(time_min_bar_pres)
• Time of Maximum Temperature(time_max_temp)
• Minimum Barometric Pressure(min_bar_pres)
• Maximum Vapor Pressure(max_vap_pres)
• Time of Maximum Vapor Pressure(time_max_vap_pres)
• Maximum Relative Humidity(max_rh)
• Maximum Temperature(max_temp)
• Time of Minimum Snow Depth(time_min_snow)
• Time of Maximum Barometric Pressure(time_max_bar_pres)
• Time of Maximum Relative Humidity(time_max_rh)
• Time of Minimum Vapor Pressure(time_min_vap_pres)
• Time of Minimum Wind Speed(time_min_wspd)
• Time offset of tweaks from base_time(time_offset)
• Minimum of Wind speed(min_wspd)
• Minimum Temperature(min_temp)
• lon(lon)
• base time(base_time)
• Maximum Barometric Pressure(max_bar_pres)
• maximum wind speed (gusts)(max_wspd)
• Dummy altitude for Zeb(alt)
• lat(lat)
• Minimum Relative Humidity(min_rh)
• Time of Minimum Relative Humidity(time_min_rh)
• Maximum Snow Depth(max_snow)
• Time of Maximum Wind Speed(time_max_wspd)