SGP/SMOS/E15 -  E15 SMOS RH% VALUES INCORRECT

RH% values reported as -0.07% during indicated time period.  It is possible that the 
sensor element had moisture contamination.

• Humidity, relative(rh)
• Pressure, vapor, 60-m height, 30-min intervals(vap_pres)

• Pressure, vapor, 60-m height, 30-min intervals(vap_pres)
• Humidity, relative(rh)

SGP/SMOS/E21 -  E21 SMOS TEMPERATURE & RH% DATA SUSPECT

The T/RH sensor intermittently reporting suspect values during listed time period.  Sensor 
was replaced.

• Humidity, relative, at 60-m height, 24-hr minimum(min_rh)
• Time of Maximum Vapor Pressure(time_max_vap_pres)
• Time of Maximum Relative Humidity(time_max_rh)
• Time of Minimum Temperature(time_min_temp)
• Time of Relative Humidity(time_min_rh)
• Temperature, air, at 60-m height, 24-hr maximum(max_temp)
• Temperature, air, at 60-m height, 24-hr minimum(min_temp)
• Humidity, relative, at 60-m height, 24-hr maximum(max_rh)
• Time of Maximum Temperature(time_max_temp)
• Pressure, vapor, at 60-m height, 24-hr maximum(max_vap_pres)
• Time of Minimum Vapor Pressure(time_min_vap_pres)
• Pressure, vapor, at 60-m height, 24-hr minimum(min_vap_pres)

• Pressure, vapor, 60-m height, 30-min intervals(vap_pres)
• Temperature, air(temp)
• Wind direction, 30-min intervals, standard deviation(sd_deg)
• Humidity, relative(rh)

• Temperature, air(temp)
• Humidity, relative(rh)
• Pressure, vapor, 60-m height, 30-min intervals(vap_pres)
• Wind direction, 30-min intervals, standard deviation(sd_deg)

• Humidity, relative, 30-min intervals, standard deviation(sd_rh)
• Temperature, air(temp)
• Pressure, vapor, 60-m height, 30-min intervals(vap_pres)
• Temperature, air, 30-min intervals, standard deviation(sd_temp)
• sd_vap_pres
• Wind direction, 30-min intervals, standard deviation(sd_deg)
• Humidity, relative(rh)

• Humidity, relative(rh)
• Temperature, air, 30-min intervals, standard deviation(sd_temp)
• sd_vap_pres
• Pressure, vapor, 60-m height, 30-min intervals(vap_pres)
• Wind direction, 30-min intervals, standard deviation(sd_deg)
• Humidity, relative, 30-min intervals, standard deviation(sd_rh)
• Temperature, air(temp)

SGP/SMOS/E15 -  E15 SMOS RH% VALUES SUSPECT

RH% readings intermittently reported as 0.14% during period.  Sensor was replaced.

• Pressure, vapor, 60-m height, 30-min intervals(vap_pres)
• Humidity, relative(rh)

• Pressure, vapor, 60-m height, 30-min intervals(vap_pres)
• Humidity, relative(rh)
• sd_vap_pres
• Humidity, relative, 30-min intervals, standard deviation(sd_rh)

• Pressure, vapor, 60-m height, 30-min intervals(vap_pres)
• Humidity, relative(rh)

• Humidity, relative(rh)
• Pressure, vapor, 60-m height, 30-min intervals(vap_pres)
• sd_vap_pres
• Humidity, relative, 30-min intervals, standard deviation(sd_rh)

• Humidity, relative, at 60-m height, 24-hr maximum(max_rh)
• Pressure, vapor, at 60-m height, 24-hr minimum(min_vap_pres)
• Time of Maximum Vapor Pressure(time_max_vap_pres)
• Humidity, relative, at 60-m height, 24-hr minimum(min_rh)
• Pressure, vapor, at 60-m height, 24-hr maximum(max_vap_pres)
• Time of Relative Humidity(time_min_rh)
• Time of Maximum Relative Humidity(time_max_rh)
• Time of Minimum Vapor Pressure(time_min_vap_pres)

SGP/SMOS/E6 - E6 SMOS RH% VALUES ARTIFICIALLY LOW

RH% values were artificially low compared to other nearby sites.  Reason unknown.

• Humidity, relative(rh)
• Pressure, vapor, 60-m height, 30-min intervals(vap_pres)

• Humidity, relative(rh)
• Pressure, vapor, 60-m height, 30-min intervals(vap_pres)

SGP/SMOS/E6 - Sensor failure

On 08/30, after heavy rains had fallen, the RH sensor
began occasionally reporting readings of around 0 or
erratic data.  Although frequently readings appearred
reasonable, they unpredictably dropped or become erratic
again for long periods of time.  The sensor was replaced
on 09/11/2003 @ 16:40 GMT.

• Pressure, vapor, at 60-m height, 24-hr minimum(min_vap_pres)
• Time of Relative Humidity(time_min_rh)
• Time of Maximum Relative Humidity(time_max_rh)
• Humidity, relative, at 60-m height, 24-hr maximum(max_rh)
• Time of Maximum Vapor Pressure(time_max_vap_pres)
• Time of Minimum Vapor Pressure(time_min_vap_pres)
• Humidity, relative, at 60-m height, 24-hr minimum(min_rh)

• Humidity, relative, 30-min intervals, standard deviation(sd_rh)
• sd_vap_pres
• Humidity, relative(rh)
• Pressure, vapor, 60-m height, 30-min intervals(vap_pres)

• Humidity, relative, 30-min intervals, standard deviation(sd_rh)
• Pressure, vapor, 60-m height, 30-min intervals(vap_pres)
• Humidity, relative(rh)

• Pressure, vapor, 60-m height, 30-min intervals(vap_pres)
• Humidity, relative(rh)

• Humidity, relative(rh)
• Pressure, vapor, 60-m height, 30-min intervals(vap_pres)

SGP/SMOS/E4 - Sensor failure--RH data bad

RH readings are questionable during high moisture conditions.  Readings frequently are 
above tolerance (104%) during saturated conditions. During non-saturated conditions the RH% 
readings are fine.

• Humidity, relative(rh)
• Pressure, vapor, 60-m height, 30-min intervals(vap_pres)

• Pressure, vapor, 60-m height, 30-min intervals(vap_pres)
• Humidity, relative(rh)

• Humidity, relative(rh)
• Pressure, vapor, 60-m height, 30-min intervals(vap_pres)

• Pressure, vapor, 60-m height, 30-min intervals(vap_pres)
• Humidity, relative(rh)

• Time of Maximum Relative Humidity(time_max_rh)
• Pressure, vapor, at 60-m height, 24-hr maximum(max_vap_pres)
• Time of Minimum Vapor Pressure(time_min_vap_pres)
• Humidity, relative, at 60-m height, 24-hr minimum(min_rh)
• Time of Maximum Vapor Pressure(time_max_vap_pres)
• Humidity, relative, at 60-m height, 24-hr maximum(max_rh)
• Time of Relative Humidity(time_min_rh)

SGP/SMOS/E4 - Sensor failure--RH data incorrect

RH readings are questionable during high moisture conditions.  Readings
   frequently are above tolerance (104%) during saturated conditions. During
   non-saturated conditions the RH% readings are fine.

• Humidity, relative(rh)
• Pressure, vapor, 60-m height, 30-min intervals(vap_pres)

• Pressure, vapor, 60-m height, 30-min intervals(vap_pres)
• Humidity, relative(rh)

• Time of Relative Humidity(time_min_rh)
• Humidity, relative, at 60-m height, 24-hr minimum(min_rh)
• Time of Minimum Vapor Pressure(time_min_vap_pres)
• Pressure, vapor, at 60-m height, 24-hr minimum(min_vap_pres)
• Time of Maximum Relative Humidity(time_max_rh)
• Time of Maximum Vapor Pressure(time_max_vap_pres)
• Humidity, relative, at 60-m height, 24-hr maximum(max_rh)

SGP/SMOS/E6 - Temperature values incorrect, sensor failure.

The temperature element of the T/RH probe failed.  Sensor was replaced.

• sd_vap_pres
• Temperature, air(temp)
• Temperature, air, 30-min intervals, standard deviation(sd_temp)
• Pressure, vapor, 60-m height, 30-min intervals(vap_pres)

• Time of Maximum Temperature(time_max_temp)
• Pressure, vapor, at 60-m height, 24-hr minimum(min_vap_pres)
• Time of Maximum Vapor Pressure(time_max_vap_pres)
• Time of Minimum Vapor Pressure(time_min_vap_pres)
• Pressure, vapor, at 60-m height, 24-hr maximum(max_vap_pres)
• Temperature, air, at 60-m height, 24-hr maximum(max_temp)
• Time of Minimum Temperature(time_min_temp)
• Temperature, air, at 60-m height, 24-hr minimum(min_temp)

• Temperature, air(temp)
• sd_vap_pres
• Pressure, vapor, 60-m height, 30-min intervals(vap_pres)
• Temperature, air, 30-min intervals, standard deviation(sd_temp)

• Pressure, vapor, 60-m height, 30-min intervals(vap_pres)
• Temperature, air(temp)

• Pressure, vapor, 60-m height, 30-min intervals(vap_pres)
• Temperature, air(temp)

SGP/SMOS/E15 - RH and calculated values incorrect

The sensor element for RH became wet due to heavy rainfall and winds.  RH values were 
incorrect along with any calculated values from the RH data (vapor pressure).  The 30 minute 
and daily data values should be considered suspect.

• Pressure, vapor, 60-m height, 30-min intervals(vap_pres)
• Humidity, relative(rh)

• Pressure, vapor, 60-m height, 30-min intervals(vap_pres)
• Humidity, relative(rh)
• sd_vap_pres
• Humidity, relative, 30-min intervals, standard deviation(sd_rh)

• Pressure, vapor, 60-m height, 30-min intervals(vap_pres)
• Humidity, relative(rh)

• Humidity, relative(rh)
• Pressure, vapor, 60-m height, 30-min intervals(vap_pres)
• sd_vap_pres
• Humidity, relative, 30-min intervals, standard deviation(sd_rh)

• Humidity, relative, at 60-m height, 24-hr maximum(max_rh)
• Pressure, vapor, at 60-m height, 24-hr minimum(min_vap_pres)
• Time of Maximum Vapor Pressure(time_max_vap_pres)
• Humidity, relative, at 60-m height, 24-hr minimum(min_rh)
• Pressure, vapor, at 60-m height, 24-hr maximum(max_vap_pres)
• Time of Relative Humidity(time_min_rh)
• Time of Maximum Relative Humidity(time_max_rh)
• Time of Minimum Vapor Pressure(time_min_vap_pres)

SGP/SMOS/E4 - Sensor failure

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

• Humidity, relative(rh)
• Pressure, vapor, 60-m height, 30-min intervals(vap_pres)

• Humidity, relative, 30-min intervals, standard deviation(sd_rh)
• sd_vap_pres
• Pressure, vapor, 60-m height, 30-min intervals(vap_pres)
• Humidity, relative(rh)

• Time of Relative Humidity(time_min_rh)
• Pressure, vapor, at 60-m height, 24-hr minimum(min_vap_pres)
• Time of Maximum Relative Humidity(time_max_rh)
• Humidity, relative, at 60-m height, 24-hr minimum(min_rh)
• Time of Minimum Vapor Pressure(time_min_vap_pres)
• Humidity, relative, at 60-m height, 24-hr maximum(max_rh)
• Pressure, vapor, at 60-m height, 24-hr maximum(max_vap_pres)
• Time of Maximum Vapor Pressure(time_max_vap_pres)

SGP/SMOS/E4 - RH sensor intermittent

RH sensor intermittently failing during entire period.

• Humidity, relative(rh)
• Humidity, relative, 30-min intervals, standard deviation(sd_rh)
• Pressure, vapor, 60-m height, 30-min intervals(vap_pres)
• sd_vap_pres

• Pressure, vapor, 60-m height, 30-min intervals(vap_pres)
• Humidity, relative(rh)

• Humidity, relative(rh)
• Pressure, vapor, 60-m height, 30-min intervals(vap_pres)

• Humidity, relative, 30-min intervals, standard deviation(sd_rh)
• sd_vap_pres
• Pressure, vapor, 60-m height, 30-min intervals(vap_pres)
• Humidity, relative(rh)

• Time of Maximum Relative Humidity(time_max_rh)
• Pressure, vapor, at 60-m height, 24-hr maximum(max_vap_pres)
• Time of Minimum Vapor Pressure(time_min_vap_pres)
• Humidity, relative, at 60-m height, 24-hr minimum(min_rh)
• Time of Maximum Vapor Pressure(time_max_vap_pres)
• Humidity, relative, at 60-m height, 24-hr maximum(max_rh)
• Pressure, vapor, at 60-m height, 24-hr minimum(min_vap_pres)
• Time of Relative Humidity(time_min_rh)

SGP/SMOS/E4 - RH sensor intermittent

RH sensor intermittently failing during entire period.  Sensor replaced 10/22/2003 @ 16:48 
GMT.

• Humidity, relative(rh)
• Pressure, vapor, 60-m height, 30-min intervals(vap_pres)

• Humidity, relative, 30-min intervals, standard deviation(sd_rh)
• sd_vap_pres
• Pressure, vapor, 60-m height, 30-min intervals(vap_pres)
• Humidity, relative(rh)

• Time of Relative Humidity(time_min_rh)
• Pressure, vapor, at 60-m height, 24-hr minimum(min_vap_pres)
• Time of Maximum Relative Humidity(time_max_rh)
• Humidity, relative, at 60-m height, 24-hr minimum(min_rh)
• Time of Minimum Vapor Pressure(time_min_vap_pres)
• Humidity, relative, at 60-m height, 24-hr maximum(max_rh)
• Pressure, vapor, at 60-m height, 24-hr maximum(max_vap_pres)
• Time of Maximum Vapor Pressure(time_max_vap_pres)

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.

• sd_bar_pres
• Wind speed, vector-averaged, at 10-m height, 30-min intervals(wspd_va)
• Humidity, relative(rh)
• Temperature, air, 30-min intervals, standard deviation(sd_temp)
• Mean Wind Speed(wspd)
• Pressure, vapor, 60-m height, 30-min intervals(vap_pres)
• sd_vap_pres
• Pressure, atmospheric, at 1-m height, 30-min intervals(bar_pres)
• Unit Vector Wind Direction(wdir)
• Temperature, air(temp)
• Wind direction, 30-min intervals, standard deviation(sd_deg)
• Wind speed, 30-min intervals, standard deviation(sd_wspd)
• Humidity, relative, 30-min intervals, standard deviation(sd_rh)

• Wind speed, vector-averaged, at 10-m height, 30-min intervals(wspd_va)
• Temperature, air(temp)
• Wind direction, 30-min intervals, standard deviation(sd_deg)
• Mean Wind Speed(wspd)
• Humidity, relative(rh)
• Pressure, atmospheric, at 1-m height, 30-min intervals(bar_pres)
• Pressure, vapor, 60-m height, 30-min intervals(vap_pres)
• Unit Vector Wind Direction(wdir)

• Wind direction, 30-min intervals, standard deviation(sd_deg)
• Unit Vector Wind Direction(wdir)
• Humidity, relative(rh)
• Mean Wind Speed(wspd)
• Pressure, atmospheric, at 1-m height, 30-min intervals(bar_pres)
• Wind speed, vector-averaged, at 10-m height, 30-min intervals(wspd_va)
• Pressure, vapor, 60-m height, 30-min intervals(vap_pres)
• Temperature, air(temp)

• Wind speed, 30-min intervals, standard deviation(sd_wspd)
• Pressure, vapor, 60-m height, 30-min intervals(vap_pres)
• sd_bar_pres
• Pressure, atmospheric, at 1-m height, 30-min intervals(bar_pres)
• Humidity, relative, 30-min intervals, standard deviation(sd_rh)
• Temperature, air, 30-min intervals, standard deviation(sd_temp)
• sd_vap_pres
• Wind speed, vector-averaged, at 10-m height, 30-min intervals(wspd_va)
• Humidity, relative(rh)
• Wind direction, 30-min intervals, standard deviation(sd_deg)
• Unit Vector Wind Direction(wdir)
• Temperature, air(temp)
• Mean Wind Speed(wspd)

• Temperature, air, at 60-m height, 24-hr maximum(max_temp)
• Time of Minimum Temperature(time_min_temp)
• Time of Maximum Wind Speed(time_max_wspd)
• Time of Maximum Barometric Pressure(time_max_bar_pres)
• Temperature, air, at 60-m height, 24-hr minimum(min_temp)
• Time of Minimum Wind Speed(time_min_wspd)
• Pressure, vapor, at 60-m height, 24-hr maximum(max_vap_pres)
• Time of Minimum Barometric Pressure(time_min_bar_pres)
• Humidity, relative, at 60-m height, 24-hr minimum(min_rh)
• Time of Relative Humidity(time_min_rh)
• Minimum Barometric Pressure(min_bar_pres)
• Time of Maximum Relative Humidity(time_max_rh)
• Maximum Barometric Pressure(max_bar_pres)
• Time of Maximum Vapor Pressure(time_max_vap_pres)
• Humidity, relative, at 60-m height, 24-hr maximum(max_rh)
• Highest gust within hour is reported(max_wspd)
• Pressure, vapor, at 60-m height, 24-hr minimum(min_vap_pres)
• Time of Maximum Temperature(time_max_temp)
• Minimum Wind Speed(min_wspd)
• Time of Minimum Vapor Pressure(time_min_vap_pres)

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.

• Wind direction, 30-min intervals, standard deviation(sd_deg)
• Unit Vector Wind Direction(wdir)
• Wind speed, vector-averaged, at 10-m height, 30-min intervals(wspd_va)
• Humidity, relative(rh)
• Mean Wind Speed(wspd)
• Pressure, vapor, 60-m height, 30-min intervals(vap_pres)
• Pressure, atmospheric, at 1-m height, 30-min intervals(bar_pres)
• Temperature, air(temp)

• Wind direction, 30-min intervals, standard deviation(sd_deg)
• Wind speed, 30-min intervals, standard deviation(sd_wspd)
• Pressure, vapor, 60-m height, 30-min intervals(vap_pres)
• sd_bar_pres
• Pressure, atmospheric, at 1-m height, 30-min intervals(bar_pres)
• Unit Vector Wind Direction(wdir)
• Temperature, air(temp)
• Humidity, relative, 30-min intervals, standard deviation(sd_rh)
• sd_vap_pres
• Temperature, air, 30-min intervals, standard deviation(sd_temp)
• Mean Wind Speed(wspd)
• Wind speed, vector-averaged, at 10-m height, 30-min intervals(wspd_va)
• Humidity, relative(rh)

• Time of Relative Humidity(time_min_rh)
• Pressure, vapor, at 60-m height, 24-hr minimum(min_vap_pres)
• Time of Minimum Wind Speed(time_min_wspd)
• Highest gust within hour is reported(max_wspd)
• Maximum Barometric Pressure(max_bar_pres)
• Minimum Barometric Pressure(min_bar_pres)
• Minimum Wind Speed(min_wspd)
• Time of Maximum Temperature(time_max_temp)
• Time of Maximum Relative Humidity(time_max_rh)
• Temperature, air, at 60-m height, 24-hr minimum(min_temp)
• Time of Minimum Vapor Pressure(time_min_vap_pres)
• Time of Minimum Temperature(time_min_temp)
• Temperature, air, at 60-m height, 24-hr maximum(max_temp)
• Time of Maximum Vapor Pressure(time_max_vap_pres)
• Pressure, vapor, at 60-m height, 24-hr maximum(max_vap_pres)
• Time of Maximum Barometric Pressure(time_max_bar_pres)
• Time of Maximum Wind Speed(time_max_wspd)
• Humidity, relative, at 60-m height, 24-hr minimum(min_rh)
• Time of Minimum Barometric Pressure(time_min_bar_pres)
• Humidity, relative, at 60-m height, 24-hr maximum(max_rh)

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.

• sd_bar_pres
• Pressure, atmospheric, at 1-m height, 30-min intervals(bar_pres)
• Wind direction, 30-min intervals, standard deviation(sd_deg)
• Wind speed, vector-averaged, at 10-m height, 30-min intervals(wspd_va)
• Unit Vector Wind Direction(wdir)
• Mean Wind Speed(wspd)
• sd_vap_pres
• Temperature, air(temp)
• Humidity, relative, 30-min intervals, standard deviation(sd_rh)
• Humidity, relative(rh)
• Temperature, air, 30-min intervals, standard deviation(sd_temp)
• Pressure, vapor, 60-m height, 30-min intervals(vap_pres)
• Wind speed, 30-min intervals, standard deviation(sd_wspd)

• Highest gust within hour is reported(max_wspd)
• Time of Maximum Relative Humidity(time_max_rh)
• Time of Minimum Wind Speed(time_min_wspd)
• Maximum Barometric Pressure(max_bar_pres)
• Temperature, air, at 60-m height, 24-hr maximum(max_temp)
• Time of Minimum Temperature(time_min_temp)
• Minimum Barometric Pressure(min_bar_pres)
• Time of Maximum Temperature(time_max_temp)
• Pressure, vapor, at 60-m height, 24-hr minimum(min_vap_pres)
• Time of Maximum Vapor Pressure(time_max_vap_pres)
• Time of Minimum Vapor Pressure(time_min_vap_pres)
• Humidity, relative, at 60-m height, 24-hr minimum(min_rh)
• Time of Maximum Wind Speed(time_max_wspd)
• Time of Relative Humidity(time_min_rh)
• Pressure, vapor, at 60-m height, 24-hr maximum(max_vap_pres)
• Time of Minimum Barometric Pressure(time_min_bar_pres)
• Minimum Wind Speed(min_wspd)
• Humidity, relative, at 60-m height, 24-hr maximum(max_rh)
• Time of Maximum Barometric Pressure(time_max_bar_pres)
• Temperature, air, at 60-m height, 24-hr minimum(min_temp)

• Temperature, air, 30-min intervals, standard deviation(sd_temp)
• Humidity, relative, 30-min intervals, standard deviation(sd_rh)
• Wind speed, vector-averaged, at 10-m height, 30-min intervals(wspd_va)
• sd_vap_pres
• Pressure, vapor, 60-m height, 30-min intervals(vap_pres)
• Wind speed, 30-min intervals, standard deviation(sd_wspd)
• Temperature, air(temp)
• Mean Wind Speed(wspd)
• sd_bar_pres
• Wind direction, 30-min intervals, standard deviation(sd_deg)
• Humidity, relative(rh)
• Unit Vector Wind Direction(wdir)
• Pressure, atmospheric, at 1-m height, 30-min intervals(bar_pres)

• Temperature, air(temp)
• Wind speed, vector-averaged, at 10-m height, 30-min intervals(wspd_va)
• Mean Wind Speed(wspd)
• Humidity, relative(rh)
• Unit Vector Wind Direction(wdir)
• Pressure, vapor, 60-m height, 30-min intervals(vap_pres)
• Wind direction, 30-min intervals, standard deviation(sd_deg)
• Pressure, atmospheric, at 1-m height, 30-min intervals(bar_pres)

• Wind direction, 30-min intervals, standard deviation(sd_deg)
• Pressure, atmospheric, at 1-m height, 30-min intervals(bar_pres)
• Unit Vector Wind Direction(wdir)
• Humidity, relative(rh)
• Pressure, vapor, 60-m height, 30-min intervals(vap_pres)
• Wind speed, vector-averaged, at 10-m height, 30-min intervals(wspd_va)
• Mean Wind Speed(wspd)
• Temperature, air(temp)

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.

• Temperature, air(temp)
• Mean Wind Speed(wspd)
• sd_bar_pres
• Temperature, air, 30-min intervals, standard deviation(sd_temp)
• Wind direction, 30-min intervals, standard deviation(sd_deg)
• Humidity, relative(rh)
• Unit Vector Wind Direction(wdir)
• Humidity, relative, 30-min intervals, standard deviation(sd_rh)
• sd_vap_pres
• Wind speed, vector-averaged, at 10-m height, 30-min intervals(wspd_va)
• Pressure, vapor, 60-m height, 30-min intervals(vap_pres)
• Wind speed, 30-min intervals, standard deviation(sd_wspd)
• Pressure, atmospheric, at 1-m height, 30-min intervals(bar_pres)

• Maximum Barometric Pressure(max_bar_pres)
• Time of Relative Humidity(time_min_rh)
• Pressure, vapor, at 60-m height, 24-hr minimum(min_vap_pres)
• Minimum Wind Speed(min_wspd)
• Minimum Barometric Pressure(min_bar_pres)
• Time of Minimum Temperature(time_min_temp)
• Pressure, vapor, at 60-m height, 24-hr maximum(max_vap_pres)
• Temperature, air, at 60-m height, 24-hr maximum(max_temp)
• Time of Minimum Vapor Pressure(time_min_vap_pres)
• Temperature, air, at 60-m height, 24-hr minimum(min_temp)
• Time of Maximum Barometric Pressure(time_max_bar_pres)
• Time of Maximum Vapor Pressure(time_max_vap_pres)
• Time of Maximum Temperature(time_max_temp)
• Humidity, relative, at 60-m height, 24-hr minimum(min_rh)
• Highest gust within hour is reported(max_wspd)
• Time of Minimum Wind Speed(time_min_wspd)
• Time of Maximum Relative Humidity(time_max_rh)
• Time of Minimum Barometric Pressure(time_min_bar_pres)
• Time of Maximum Wind Speed(time_max_wspd)
• Humidity, relative, at 60-m height, 24-hr maximum(max_rh)

• Unit Vector Wind Direction(wdir)
• Humidity, relative(rh)
• Pressure, vapor, 60-m height, 30-min intervals(vap_pres)
• Wind speed, vector-averaged, at 10-m height, 30-min intervals(wspd_va)
• Mean Wind Speed(wspd)
• Temperature, air(temp)
• Wind direction, 30-min intervals, standard deviation(sd_deg)
• Pressure, atmospheric, at 1-m height, 30-min intervals(bar_pres)

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.

• Temperature, air(temp)
• Wind direction, 30-min intervals, standard deviation(sd_deg)
• Pressure, atmospheric, at 1-m height, 30-min intervals(bar_pres)
• Wind speed, vector-averaged, at 10-m height, 30-min intervals(wspd_va)
• Unit Vector Wind Direction(wdir)
• Mean Wind Speed(wspd)
• Humidity, relative(rh)
• Pressure, vapor, 60-m height, 30-min intervals(vap_pres)

• Temperature, air(temp)
• Pressure, atmospheric, at 1-m height, 30-min intervals(bar_pres)
• Humidity, relative(rh)
• Wind speed, vector-averaged, at 10-m height, 30-min intervals(wspd_va)
• Wind direction, 30-min intervals, standard deviation(sd_deg)
• Pressure, vapor, 60-m height, 30-min intervals(vap_pres)
• Unit Vector Wind Direction(wdir)
• Mean Wind Speed(wspd)

• sd_bar_pres
• Wind speed, 30-min intervals, standard deviation(sd_wspd)
• Pressure, vapor, 60-m height, 30-min intervals(vap_pres)
• Temperature, air(temp)
• Humidity, relative(rh)
• Wind speed, vector-averaged, at 10-m height, 30-min intervals(wspd_va)
• Mean Wind Speed(wspd)
• Wind direction, 30-min intervals, standard deviation(sd_deg)
• Pressure, atmospheric, at 1-m height, 30-min intervals(bar_pres)
• Temperature, air, 30-min intervals, standard deviation(sd_temp)
• Unit Vector Wind Direction(wdir)
• sd_vap_pres
• Humidity, relative, 30-min intervals, standard deviation(sd_rh)

• Pressure, atmospheric, at 1-m height, 30-min intervals(bar_pres)
• Humidity, relative(rh)
• Mean Wind Speed(wspd)
• Wind direction, 30-min intervals, standard deviation(sd_deg)
• Wind speed, vector-averaged, at 10-m height, 30-min intervals(wspd_va)
• Unit Vector Wind Direction(wdir)
• Humidity, relative, 30-min intervals, standard deviation(sd_rh)
• Temperature, air(temp)
• Temperature, air, 30-min intervals, standard deviation(sd_temp)
• Pressure, vapor, 60-m height, 30-min intervals(vap_pres)
• sd_vap_pres
• sd_bar_pres
• Wind speed, 30-min intervals, standard deviation(sd_wspd)

• Pressure, vapor, at 60-m height, 24-hr minimum(min_vap_pres)
• Temperature, air, at 60-m height, 24-hr maximum(max_temp)
• Minimum Wind Speed(min_wspd)
• Time of Maximum Relative Humidity(time_max_rh)
• Humidity, relative, at 60-m height, 24-hr maximum(max_rh)
• Time of Maximum Wind Speed(time_max_wspd)
• Time of Maximum Temperature(time_max_temp)
• Pressure, vapor, at 60-m height, 24-hr maximum(max_vap_pres)
• Time of Relative Humidity(time_min_rh)
• Highest gust within hour is reported(max_wspd)
• 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)
• Temperature, air, at 60-m height, 24-hr minimum(min_temp)
• Humidity, relative, at 60-m height, 24-hr minimum(min_rh)
• Time of Minimum Wind Speed(time_min_wspd)
• Minimum Barometric Pressure(min_bar_pres)
• Maximum Barometric Pressure(max_bar_pres)
• Time of Minimum Barometric Pressure(time_min_bar_pres)
• Time of Minimum Temperature(time_min_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.

• Wind speed, vector-averaged, at 10-m height, 30-min intervals(wspd_va)
• Unit Vector Wind Direction(wdir)
• Mean Wind Speed(wspd)
• Humidity, relative(rh)
• Temperature, air(temp)
• Wind direction, 30-min intervals, standard deviation(sd_deg)
• Pressure, vapor, 60-m height, 30-min intervals(vap_pres)
• Pressure, atmospheric, at 1-m height, 30-min intervals(bar_pres)

• Pressure, atmospheric, at 1-m height, 30-min intervals(bar_pres)
• Humidity, relative(rh)
• Temperature, air(temp)
• Temperature, air, 30-min intervals, standard deviation(sd_temp)
• Mean Wind Speed(wspd)
• Wind direction, 30-min intervals, standard deviation(sd_deg)
• Pressure, vapor, 60-m height, 30-min intervals(vap_pres)
• Wind speed, vector-averaged, at 10-m height, 30-min intervals(wspd_va)
• Unit Vector Wind Direction(wdir)
• sd_vap_pres
• sd_bar_pres
• Humidity, relative, 30-min intervals, standard deviation(sd_rh)
• Wind speed, 30-min intervals, standard deviation(sd_wspd)

• Time of Minimum Temperature(time_min_temp)
• Time of Relative Humidity(time_min_rh)
• Time of Maximum Temperature(time_max_temp)
• Maximum Barometric Pressure(max_bar_pres)
• Highest gust within hour is reported(max_wspd)
• Time of Minimum Wind Speed(time_min_wspd)
• Humidity, relative, at 60-m height, 24-hr maximum(max_rh)
• Time of Maximum Barometric Pressure(time_max_bar_pres)
• Humidity, relative, at 60-m height, 24-hr minimum(min_rh)
• Minimum Wind Speed(min_wspd)
• Time of Minimum Barometric Pressure(time_min_bar_pres)
• Pressure, vapor, at 60-m height, 24-hr maximum(max_vap_pres)
• Time of Minimum Vapor Pressure(time_min_vap_pres)
• Temperature, air, at 60-m height, 24-hr maximum(max_temp)
• Pressure, vapor, at 60-m height, 24-hr minimum(min_vap_pres)
• Temperature, air, at 60-m height, 24-hr minimum(min_temp)
• Time of Maximum Wind Speed(time_max_wspd)
• Minimum Barometric Pressure(min_bar_pres)
• Time of Maximum Relative Humidity(time_max_rh)
• Time of Maximum Vapor Pressure(time_max_vap_pres)

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.

• Humidity, relative, at 60-m height, 24-hr minimum(min_rh)
• Time of Maximum Relative Humidity(time_max_rh)
• Temperature, air, at 60-m height, 24-hr maximum(max_temp)
• Maximum Barometric Pressure(max_bar_pres)
• Humidity, relative, at 60-m height, 24-hr maximum(max_rh)
• Minimum Barometric Pressure(min_bar_pres)
• Time of Minimum Wind Speed(time_min_wspd)
• Time of Minimum Vapor Pressure(time_min_vap_pres)
• Minimum Wind Speed(min_wspd)
• Highest gust within hour is reported(max_wspd)
• Time of Maximum Vapor Pressure(time_max_vap_pres)
• Time of Minimum Temperature(time_min_temp)
• Time of Relative Humidity(time_min_rh)
• Time of Minimum Barometric Pressure(time_min_bar_pres)
• Time of Maximum Wind Speed(time_max_wspd)
• Temperature, air, at 60-m height, 24-hr minimum(min_temp)
• Time of Maximum Temperature(time_max_temp)
• Pressure, vapor, at 60-m height, 24-hr maximum(max_vap_pres)
• Time of Maximum Barometric Pressure(time_max_bar_pres)
• Pressure, vapor, at 60-m height, 24-hr minimum(min_vap_pres)

• Temperature, air(temp)
• Unit Vector Wind Direction(wdir)
• Humidity, relative(rh)
• Pressure, atmospheric, at 1-m height, 30-min intervals(bar_pres)
• Pressure, vapor, 60-m height, 30-min intervals(vap_pres)
• Wind direction, 30-min intervals, standard deviation(sd_deg)
• Wind speed, vector-averaged, at 10-m height, 30-min intervals(wspd_va)
• Mean Wind Speed(wspd)

• Temperature, air(temp)
• Pressure, vapor, 60-m height, 30-min intervals(vap_pres)
• Wind direction, 30-min intervals, standard deviation(sd_deg)
• Mean Wind Speed(wspd)
• Unit Vector Wind Direction(wdir)
• Pressure, atmospheric, at 1-m height, 30-min intervals(bar_pres)
• Humidity, relative(rh)
• Wind speed, vector-averaged, at 10-m height, 30-min intervals(wspd_va)

• Pressure, atmospheric, at 1-m height, 30-min intervals(bar_pres)
• sd_bar_pres
• Pressure, vapor, 60-m height, 30-min intervals(vap_pres)
• Temperature, air, 30-min intervals, standard deviation(sd_temp)
• Mean Wind Speed(wspd)
• Wind direction, 30-min intervals, standard deviation(sd_deg)
• Humidity, relative, 30-min intervals, standard deviation(sd_rh)
• Temperature, air(temp)
• sd_vap_pres
• Wind speed, 30-min intervals, standard deviation(sd_wspd)
• Humidity, relative(rh)
• Unit Vector Wind Direction(wdir)
• Wind speed, vector-averaged, at 10-m height, 30-min intervals(wspd_va)

• Temperature, air, 30-min intervals, standard deviation(sd_temp)
• Wind speed, vector-averaged, at 10-m height, 30-min intervals(wspd_va)
• sd_vap_pres
• Pressure, vapor, 60-m height, 30-min intervals(vap_pres)
• Humidity, relative, 30-min intervals, standard deviation(sd_rh)
• Temperature, air(temp)
• Pressure, atmospheric, at 1-m height, 30-min intervals(bar_pres)
• Humidity, relative(rh)
• sd_bar_pres
• Wind direction, 30-min intervals, standard deviation(sd_deg)
• Mean Wind Speed(wspd)
• Unit Vector Wind Direction(wdir)
• Wind speed, 30-min intervals, standard deviation(sd_wspd)

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.

• Time of Maximum Relative Humidity(time_max_rh)
• Time of Maximum Temperature(time_max_temp)
• Temperature, air, at 60-m height, 24-hr maximum(max_temp)
• Temperature, air, at 60-m height, 24-hr minimum(min_temp)
• Humidity, relative, at 60-m height, 24-hr maximum(max_rh)
• Highest gust within hour is reported(max_wspd)
• Pressure, vapor, at 60-m height, 24-hr maximum(max_vap_pres)
• Time of Minimum Wind Speed(time_min_wspd)
• Time of Maximum Vapor Pressure(time_max_vap_pres)
• Time of Maximum Wind Speed(time_max_wspd)
• Minimum Barometric Pressure(min_bar_pres)
• Pressure, vapor, at 60-m height, 24-hr minimum(min_vap_pres)
• Time of Relative Humidity(time_min_rh)
• Time of Maximum Barometric Pressure(time_max_bar_pres)
• Time of Minimum Vapor Pressure(time_min_vap_pres)
• Maximum Barometric Pressure(max_bar_pres)
• Time of Minimum Barometric Pressure(time_min_bar_pres)
• Minimum Wind Speed(min_wspd)
• Humidity, relative, at 60-m height, 24-hr minimum(min_rh)
• Time of Minimum Temperature(time_min_temp)

• Pressure, atmospheric, at 1-m height, 30-min intervals(bar_pres)
• Pressure, vapor, 60-m height, 30-min intervals(vap_pres)
• Temperature, air(temp)
• Wind direction, 30-min intervals, standard deviation(sd_deg)
• Unit Vector Wind Direction(wdir)
• Wind speed, vector-averaged, at 10-m height, 30-min intervals(wspd_va)
• Mean Wind Speed(wspd)
• Humidity, relative(rh)

• Humidity, relative, 30-min intervals, standard deviation(sd_rh)
• Pressure, atmospheric, at 1-m height, 30-min intervals(bar_pres)
• Temperature, air(temp)
• sd_bar_pres
• Pressure, vapor, 60-m height, 30-min intervals(vap_pres)
• Temperature, air, 30-min intervals, standard deviation(sd_temp)
• sd_vap_pres
• Wind speed, 30-min intervals, standard deviation(sd_wspd)
• Mean Wind Speed(wspd)
• Wind direction, 30-min intervals, standard deviation(sd_deg)
• Humidity, relative(rh)
• Unit Vector Wind Direction(wdir)
• Wind speed, vector-averaged, at 10-m height, 30-min intervals(wspd_va)

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.

• Humidity, relative(rh)
• Pressure, vapor, 60-m height, 30-min intervals(vap_pres)

• Humidity, relative, 30-min intervals, standard deviation(sd_rh)
• sd_vap_pres
• Pressure, vapor, 60-m height, 30-min intervals(vap_pres)
• Humidity, relative(rh)

• Time of Relative Humidity(time_min_rh)
• Pressure, vapor, at 60-m height, 24-hr minimum(min_vap_pres)
• Time of Maximum Relative Humidity(time_max_rh)
• Humidity, relative, at 60-m height, 24-hr minimum(min_rh)
• Time of Minimum Vapor Pressure(time_min_vap_pres)
• Humidity, relative, at 60-m height, 24-hr maximum(max_rh)
• Pressure, vapor, at 60-m height, 24-hr maximum(max_vap_pres)
• Time of Maximum Vapor Pressure(time_max_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.

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

• Pressure, atmospheric, at 1-m height, 30-min intervals(bar_pres)

• Pressure, atmospheric, at 1-m height, 30-min intervals(bar_pres)
• sd_bar_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.

• Time of Maximum Relative Humidity(time_max_rh)
• Pressure, vapor, at 60-m height, 24-hr minimum(min_vap_pres)
• Time of Relative Humidity(time_min_rh)
• Time of Maximum Temperature(time_max_temp)
• Temperature, air, at 60-m height, 24-hr minimum(min_temp)
• Temperature, air, at 60-m height, 24-hr maximum(max_temp)
• Time of Minimum Vapor Pressure(time_min_vap_pres)
• Humidity, relative, at 60-m height, 24-hr maximum(max_rh)
• Humidity, relative, at 60-m height, 24-hr minimum(min_rh)
• Time of Minimum Temperature(time_min_temp)
• Pressure, vapor, at 60-m height, 24-hr maximum(max_vap_pres)
• Time of Maximum Vapor Pressure(time_max_vap_pres)

• Wind direction, 30-min intervals, standard deviation(sd_deg)
• Pressure, vapor, 60-m height, 30-min intervals(vap_pres)
• Temperature, air(temp)
• Humidity, relative(rh)

• Humidity, relative, 30-min intervals, standard deviation(sd_rh)
• Wind direction, 30-min intervals, standard deviation(sd_deg)
• Humidity, relative(rh)
• Temperature, air(temp)
• Pressure, vapor, 60-m height, 30-min intervals(vap_pres)
• Temperature, air, 30-min intervals, standard deviation(sd_temp)
• sd_vap_pres

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

Data are missing due to severe ice storm.

• lat
• Precipitation, total(precip)
• Temperature, air(temp)
• Wind direction, 30-min intervals, standard deviation(sd_deg)
• time_offset
• Pressure, atmospheric, at 1-m height, 30-min intervals(bar_pres)
• Wind speed, vector-averaged, at 10-m height, 30-min intervals(wspd_va)
• Unit Vector Wind Direction(wdir)
• alt
• Mean Wind Speed(wspd)
• Humidity, relative(rh)
• base_time
• lon
• Pressure, vapor, 60-m height, 30-min intervals(vap_pres)

• Pressure, atmospheric, at 1-m height, 30-min intervals(bar_pres)
• Snow, depth, 30-min intervals(snow)
• Humidity, relative(rh)
• base_time
• snow_sen
• time_offset
• Mean Wind Speed(wspd)
• alt
• Wind direction, 30-min intervals, standard deviation(sd_deg)
• Wind speed, vector-averaged, at 10-m height, 30-min intervals(wspd_va)
• Unit Vector Wind Direction(wdir)
• Humidity, relative, 30-min intervals, standard deviation(sd_rh)
• lon
• vbat
• Temperature, air(temp)
• Temperature, air, 30-min intervals, standard deviation(sd_temp)
• lat
• Pressure, vapor, 60-m height, 30-min intervals(vap_pres)
• Precipitation, total(precip)
• sd_vap_pres
• sd_bar_pres
• Wind speed, 30-min intervals, standard deviation(sd_wspd)

• Time of Relative Humidity(time_min_rh)
• Time of Minimum Snow Depth(time_min_snow)
• Time of Minimum Wind Speed(time_min_wspd)
• time_offset
• Time of Maximum Barometric Pressure(time_max_bar_pres)
• Humidity, relative, at 60-m height, 24-hr minimum(min_rh)
• Minimum Wind Speed(min_wspd)
• Time of Maximum Snow Depth(time_max_snow)
• Time of Minimum Vapor Pressure(time_min_vap_pres)
• Maximum Snow Depth(max_snow)
• Temperature, air, at 60-m height, 24-hr maximum(max_temp)
• Pressure, vapor, at 60-m height, 24-hr minimum(min_vap_pres)
• Time of Maximum Wind Speed(time_max_wspd)
• Minimum Barometric Pressure(min_bar_pres)
• Time of Maximum Relative Humidity(time_max_rh)
• lon
• Time of Minimum Temperature(time_min_temp)
• Time of Maximum Temperature(time_max_temp)
• Maximum Barometric Pressure(max_bar_pres)
• Highest gust within hour is reported(max_wspd)
• Humidity, relative, at 60-m height, 24-hr maximum(max_rh)
• alt
• time
• Time of Minimum Barometric Pressure(time_min_bar_pres)
• Pressure, vapor, at 60-m height, 24-hr maximum(max_vap_pres)
• Minimum Snow Depth(min_snow_depth)
• base_time
• Temperature, air, at 60-m height, 24-hr minimum(min_temp)
• lat
• Time of Maximum Vapor Pressure(time_max_vap_pres)

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

Windspeed sensor frozen by ice storm during the period specified.

• Wind speed, vector-averaged, at 10-m height, 30-min intervals(wspd_va)
• Mean Wind Speed(wspd)

• Mean Wind Speed(wspd)
• Wind speed, vector-averaged, at 10-m height, 30-min intervals(wspd_va)

• Time of Minimum Wind Speed(time_min_wspd)
• Time of Maximum Wind Speed(time_max_wspd)
• Highest gust within hour is reported(max_wspd)
• Minimum Wind Speed(min_wspd)

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, at 10-m height, 30-min intervals(wspd_va)
• Mean Wind Speed(wspd)

• Mean Wind Speed(wspd)
• Wind speed, vector-averaged, at 10-m height, 30-min intervals(wspd_va)

• Time of Minimum Wind Speed(time_min_wspd)
• Highest gust within hour is reported(max_wspd)
• Minimum Wind Speed(min_wspd)
• Time of Maximum Wind Speed(time_max_wspd)

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

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

• Wind speed, vector-averaged, at 10-m height, 30-min intervals(wspd_va)
• Unit Vector Wind Direction(wdir)
• Mean Wind Speed(wspd)

• Highest gust within hour is reported(max_wspd)
• Time of Minimum Wind Speed(time_min_wspd)
• Time of Maximum Wind Speed(time_max_wspd)
• Minimum Wind Speed(min_wspd)

• Unit Vector Wind Direction(wdir)
• Wind speed, vector-averaged, at 10-m height, 30-min intervals(wspd_va)
• Mean Wind Speed(wspd)

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

Data are missing due to severe ice storm.

• Snow, depth, 30-min intervals(snow)
• snow_sen
• vbat
• Precipitation, total(precip)
• Temperature, air, 30-min intervals, standard deviation(sd_temp)
• lon
• time_offset
• Humidity, relative, 30-min intervals, standard deviation(sd_rh)
• Wind speed, vector-averaged, at 10-m height, 30-min intervals(wspd_va)
• sd_vap_pres
• Pressure, vapor, 60-m height, 30-min intervals(vap_pres)
• Wind speed, 30-min intervals, standard deviation(sd_wspd)
• Temperature, air(temp)
• Mean Wind Speed(wspd)
• alt
• sd_bar_pres
• lat
• Wind direction, 30-min intervals, standard deviation(sd_deg)
• Humidity, relative(rh)
• Unit Vector Wind Direction(wdir)
• base_time
• Pressure, atmospheric, at 1-m height, 30-min intervals(bar_pres)

• lon
• Maximum Barometric Pressure(max_bar_pres)
• Minimum Snow Depth(min_snow_depth)
• time
• alt
• Temperature, air, at 60-m height, 24-hr maximum(max_temp)
• Time of Maximum Barometric Pressure(time_max_bar_pres)
• Time of Maximum Vapor Pressure(time_max_vap_pres)
• Maximum Snow Depth(max_snow)
• Time of Minimum Wind Speed(time_min_wspd)
• Time of Maximum Relative Humidity(time_max_rh)
• Humidity, relative, at 60-m height, 24-hr maximum(max_rh)
• Time of Maximum Snow Depth(time_max_snow)
• Time of Relative Humidity(time_min_rh)
• Pressure, vapor, at 60-m height, 24-hr minimum(min_vap_pres)
• Minimum Wind Speed(min_wspd)
• time_offset
• Minimum Barometric Pressure(min_bar_pres)
• Time of Minimum Temperature(time_min_temp)
• Pressure, vapor, at 60-m height, 24-hr maximum(max_vap_pres)
• base_time
• Time of Minimum Vapor Pressure(time_min_vap_pres)
• Temperature, air, at 60-m height, 24-hr minimum(min_temp)
• Time of Minimum Snow Depth(time_min_snow)
• Time of Maximum Temperature(time_max_temp)
• Humidity, relative, at 60-m height, 24-hr minimum(min_rh)
• Highest gust within hour is reported(max_wspd)
• lat
• Time of Minimum Barometric Pressure(time_min_bar_pres)
• Time of Maximum Wind Speed(time_max_wspd)

• Wind direction, 30-min intervals, standard deviation(sd_deg)
• Pressure, atmospheric, at 1-m height, 30-min intervals(bar_pres)
• Precipitation, total(precip)
• time_offset
• Unit Vector Wind Direction(wdir)
• Humidity, relative(rh)
• Pressure, vapor, 60-m height, 30-min intervals(vap_pres)
• Mean Wind Speed(wspd)
• Wind speed, vector-averaged, at 10-m height, 30-min intervals(wspd_va)
• Temperature, air(temp)
• base_time
• alt
• lon
• lat

SGP/SMOS/E15 - Wind Data Suspect

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

• Wind direction, 30-min intervals, standard deviation(sd_deg)
• Wind speed, vector-averaged, at 10-m height, 30-min intervals(wspd_va)
• Unit Vector Wind Direction(wdir)
• Mean Wind Speed(wspd)

• Mean Wind Speed(wspd)
• Wind direction, 30-min intervals, standard deviation(sd_deg)
• Wind speed, vector-averaged, at 10-m height, 30-min intervals(wspd_va)
• Unit Vector Wind Direction(wdir)
• Wind speed, 30-min intervals, standard deviation(sd_wspd)

• Highest gust within hour is reported(max_wspd)
• Time of Minimum Wind Speed(time_min_wspd)
• Time of Maximum Wind Speed(time_max_wspd)
• Minimum Wind Speed(min_wspd)

SGP/SMOS/E21 - Wind Data Suspect

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

• Time of Maximum Wind Speed(time_max_wspd)
• Minimum Wind Speed(min_wspd)
• Highest gust within hour is reported(max_wspd)
• Time of Minimum Wind Speed(time_min_wspd)

• Wind direction, 30-min intervals, standard deviation(sd_deg)
• Unit Vector Wind Direction(wdir)
• Wind speed, vector-averaged, at 10-m height, 30-min intervals(wspd_va)
• Mean Wind Speed(wspd)

• Wind direction, 30-min intervals, standard deviation(sd_deg)
• Unit Vector Wind Direction(wdir)
• Wind speed, vector-averaged, at 10-m height, 30-min intervals(wspd_va)
• Wind speed, 30-min intervals, standard deviation(sd_wspd)
• Mean Wind Speed(wspd)

SGP/SMOS/E4 - Wind Data Suspect

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

• Wind direction, 30-min intervals, standard deviation(sd_deg)
• Unit Vector Wind Direction(wdir)
• Wind speed, vector-averaged, at 10-m height, 30-min intervals(wspd_va)
• Mean Wind Speed(wspd)

• Wind direction, 30-min intervals, standard deviation(sd_deg)
• Wind speed, 30-min intervals, standard deviation(sd_wspd)
• Mean Wind Speed(wspd)
• Wind speed, vector-averaged, at 10-m height, 30-min intervals(wspd_va)
• Unit Vector Wind Direction(wdir)

• Highest gust within hour is reported(max_wspd)
• Time of Minimum Wind Speed(time_min_wspd)
• Minimum Wind Speed(min_wspd)
• Time of Maximum Wind Speed(time_max_wspd)

SGP/SMOS/E6 - Wind Data Suspect

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

• Unit Vector Wind Direction(wdir)
• Mean Wind Speed(wspd)
• Wind speed, vector-averaged, at 10-m height, 30-min intervals(wspd_va)
• Wind direction, 30-min intervals, standard deviation(sd_deg)
• Wind speed, 30-min intervals, standard deviation(sd_wspd)

• Minimum Wind Speed(min_wspd)
• Highest gust within hour is reported(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, at 10-m height, 30-min intervals(wspd_va)
• Wind direction, 30-min intervals, standard deviation(sd_deg)

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/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/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.

• Humidity, relative, 30-min intervals, standard deviation(sd_rh)
• sd_vap_pres
• Pressure, vapor, 60-m height, 30-min intervals(vap_pres)
• Humidity, relative(rh)

• Time of Relative Humidity(time_min_rh)
• Time of Maximum Vapor Pressure(time_max_vap_pres)
• Humidity, relative, at 60-m height, 24-hr minimum(min_rh)
• Pressure, vapor, at 60-m height, 24-hr minimum(min_vap_pres)
• Pressure, vapor, at 60-m height, 24-hr maximum(max_vap_pres)
• Time of Maximum Relative Humidity(time_max_rh)
• Time of Minimum Vapor Pressure(time_min_vap_pres)
• Humidity, relative, at 60-m height, 24-hr maximum(max_rh)

• Humidity, relative(rh)
• Pressure, vapor, 60-m height, 30-min intervals(vap_pres)

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.

• Time of Maximum Relative Humidity(time_max_rh)
• Time of Relative Humidity(time_min_rh)
• Pressure, vapor, at 60-m height, 24-hr minimum(min_vap_pres)
• Time of Minimum Vapor Pressure(time_min_vap_pres)
• Humidity, relative, at 60-m height, 24-hr maximum(max_rh)
• Humidity, relative, at 60-m height, 24-hr minimum(min_rh)
• Pressure, vapor, at 60-m height, 24-hr maximum(max_vap_pres)
• Time of Maximum Vapor Pressure(time_max_vap_pres)

• Pressure, vapor, 60-m height, 30-min intervals(vap_pres)
• Humidity, relative(rh)

• Humidity, relative, 30-min intervals, standard deviation(sd_rh)
• Humidity, relative(rh)
• Pressure, vapor, 60-m height, 30-min intervals(vap_pres)
• sd_vap_pres

SGP/SMOS/E21 - RH Data Intermittently Poor Quality

The RH sensor failed.

• Time of Maximum Relative Humidity(time_max_rh)
• Time of Relative Humidity(time_min_rh)
• Pressure, vapor, at 60-m height, 24-hr minimum(min_vap_pres)
• Time of Minimum Vapor Pressure(time_min_vap_pres)
• Humidity, relative, at 60-m height, 24-hr maximum(max_rh)
• Humidity, relative, at 60-m height, 24-hr minimum(min_rh)
• Pressure, vapor, at 60-m height, 24-hr maximum(max_vap_pres)
• Time of Maximum Vapor Pressure(time_max_vap_pres)

• Pressure, vapor, 60-m height, 30-min intervals(vap_pres)
• Humidity, relative(rh)

• Humidity, relative(rh)
• Pressure, vapor, 60-m height, 30-min intervals(vap_pres)
• sd_vap_pres
• Wind speed, 30-min intervals, standard deviation(sd_wspd)

SGP/SMOS/E21 - Barometric Data Incorrect

Barometer failed and was replaced.

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

• Pressure, atmospheric, at 1-m height, 30-min intervals(bar_pres)

• Pressure, atmospheric, at 1-m height, 30-min intervals(bar_pres)
• sd_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/E21 - RH values above max limit during high humidity situations.

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

• Time of Maximum Relative Humidity(time_max_rh)
• Time of Relative Humidity(time_min_rh)
• Pressure, vapor, at 60-m height, 24-hr minimum(min_vap_pres)
• Time of Minimum Vapor Pressure(time_min_vap_pres)
• Humidity, relative, at 60-m height, 24-hr maximum(max_rh)
• Humidity, relative, at 60-m height, 24-hr minimum(min_rh)
• Pressure, vapor, at 60-m height, 24-hr maximum(max_vap_pres)
• Time of Maximum Vapor Pressure(time_max_vap_pres)

• Pressure, vapor, 60-m height, 30-min intervals(vap_pres)
• Humidity, relative(rh)

• Humidity, relative, 30-min intervals, standard deviation(sd_rh)
• Humidity, relative(rh)
• Pressure, vapor, 60-m height, 30-min intervals(vap_pres)
• sd_vap_pres

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.

• Pressure, atmospheric, at 1-m height, 30-min intervals(bar_pres)

• Pressure, atmospheric, at 1-m height, 30-min intervals(bar_pres)
• sd_bar_pres

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

SGP/SMOS/E21 - RH values incorrect

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

• Time of Maximum Relative Humidity(time_max_rh)
• Time of Relative Humidity(time_min_rh)
• Pressure, vapor, at 60-m height, 24-hr minimum(min_vap_pres)
• Time of Minimum Vapor Pressure(time_min_vap_pres)
• Humidity, relative, at 60-m height, 24-hr maximum(max_rh)
• Humidity, relative, at 60-m height, 24-hr minimum(min_rh)
• Pressure, vapor, at 60-m height, 24-hr maximum(max_vap_pres)
• Time of Maximum Vapor Pressure(time_max_vap_pres)

• Pressure, vapor, 60-m height, 30-min intervals(vap_pres)
• Humidity, relative(rh)

• Humidity, relative, 30-min intervals, standard deviation(sd_rh)
• Humidity, relative(rh)
• Pressure, vapor, 60-m height, 30-min intervals(vap_pres)
• sd_vap_pres

SGP/SMOS/E15 - Wind Direction Values Intermittently Incorrect

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

• Unit Vector Wind Direction(wdir)
• Wind direction, 30-min intervals, standard deviation(sd_deg)

• Unit Vector Wind Direction(wdir)
• Wind direction, 30-min intervals, standard deviation(sd_deg)

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.

• Pressure, atmospheric, at 1-m height, 30-min intervals(bar_pres)

• Pressure, atmospheric, at 1-m height, 30-min intervals(bar_pres)
• sd_bar_pres

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

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.

• Time of Maximum Wind Speed(time_max_wspd)
• Minimum Wind Speed(min_wspd)
• Highest gust within hour is reported(max_wspd)
• Time of Minimum Wind Speed(time_min_wspd)

• Mean Wind Speed(wspd)
• Unit Vector Wind Direction(wdir)
• Wind speed, vector-averaged, at 10-m height, 30-min intervals(wspd_va)

• Unit Vector Wind Direction(wdir)
• Wind speed, vector-averaged, at 10-m height, 30-min intervals(wspd_va)
• Wind speed, 30-min intervals, standard deviation(sd_wspd)
• Mean Wind Speed(wspd)

SGP/SMOS/E21 - Wind Sensor Frozen

The wind sensor was frozen during icing conditions.  All wind data is incorrect.

• Time of Maximum Wind Speed(time_max_wspd)
• Minimum Wind Speed(min_wspd)
• Highest gust within hour is reported(max_wspd)
• Time of Minimum Wind Speed(time_min_wspd)

• Wind direction, 30-min intervals, standard deviation(sd_deg)
• Unit Vector Wind Direction(wdir)
• Wind speed, vector-averaged, at 10-m height, 30-min intervals(wspd_va)
• Mean Wind Speed(wspd)

• Wind direction, 30-min intervals, standard deviation(sd_deg)
• Unit Vector Wind Direction(wdir)
• Wind speed, vector-averaged, at 10-m height, 30-min intervals(wspd_va)
• Wind speed, 30-min intervals, standard deviation(sd_wspd)
• Mean Wind Speed(wspd)

SGP/SMOS/E21 - T/RH probe data incorrect

The T/RH probe data was read incorrectly due to the wrong program getting loaded from the 
stoage module.

• Time of Maximum Relative Humidity(time_max_rh)
• Pressure, vapor, at 60-m height, 24-hr minimum(min_vap_pres)
• Time of Relative Humidity(time_min_rh)
• Time of Maximum Temperature(time_max_temp)
• Temperature, air, at 60-m height, 24-hr minimum(min_temp)
• Temperature, air, at 60-m height, 24-hr maximum(max_temp)
• Time of Minimum Vapor Pressure(time_min_vap_pres)
• Humidity, relative, at 60-m height, 24-hr maximum(max_rh)
• Humidity, relative, at 60-m height, 24-hr minimum(min_rh)
• Time of Minimum Temperature(time_min_temp)
• Pressure, vapor, at 60-m height, 24-hr maximum(max_vap_pres)
• Time of Maximum Vapor Pressure(time_max_vap_pres)

• Wind direction, 30-min intervals, standard deviation(sd_deg)
• Pressure, vapor, 60-m height, 30-min intervals(vap_pres)
• Temperature, air(temp)
• Humidity, relative(rh)

• Humidity, relative, 30-min intervals, standard deviation(sd_rh)
• Wind direction, 30-min intervals, standard deviation(sd_deg)
• Humidity, relative(rh)
• Temperature, air(temp)
• Pressure, vapor, 60-m height, 30-min intervals(vap_pres)
• Temperature, air, 30-min intervals, standard deviation(sd_temp)
• sd_vap_pres

SGP/SMOS/E15 - Wind Data Incorrect Due to Icing

An ice storm caused the wind data from the RM Young wind sensor to be
incorrect.  In many instances it was frozen and unmoving, at times it
measured values but those are extremely suspect.

• Wind direction, 30-min intervals, standard deviation(sd_deg)
• Wind speed, vector-averaged, at 10-m height, 30-min intervals(wspd_va)
• Unit Vector Wind Direction(wdir)
• Mean Wind Speed(wspd)

• Mean Wind Speed(wspd)
• Wind direction, 30-min intervals, standard deviation(sd_deg)
• Wind speed, vector-averaged, at 10-m height, 30-min intervals(wspd_va)
• Unit Vector Wind Direction(wdir)
• Wind speed, 30-min intervals, standard deviation(sd_wspd)

• Highest gust within hour is reported(max_wspd)
• Time of Minimum Wind Speed(time_min_wspd)
• Time of Maximum Wind Speed(time_max_wspd)
• Minimum Wind Speed(min_wspd)

SGP/SMOS/E21 - Wind Data Incorrect Due to Icing

An ice storm caused the wind data from the RM Young wind sensor to be
incorrect.  In many instances it was frozen and unmoving, at times it
measured values but those are extremely suspect.

• Time of Maximum Wind Speed(time_max_wspd)
• Minimum Wind Speed(min_wspd)
• Highest gust within hour is reported(max_wspd)
• Time of Minimum Wind Speed(time_min_wspd)

• Wind direction, 30-min intervals, standard deviation(sd_deg)
• Unit Vector Wind Direction(wdir)
• Wind speed, vector-averaged, at 10-m height, 30-min intervals(wspd_va)
• Mean Wind Speed(wspd)

• Wind direction, 30-min intervals, standard deviation(sd_deg)
• Unit Vector Wind Direction(wdir)
• Wind speed, vector-averaged, at 10-m height, 30-min intervals(wspd_va)
• Wind speed, 30-min intervals, standard deviation(sd_wspd)
• Mean Wind Speed(wspd)

SGP/SMOS/E4 - Wind Monitor Data Incorrect Due to Icing

An ice storm caused the wind data from the RM Young wind sensor to be incorrect.  In many 
instances it was frozen and unmoving, at times it measured values but those are extremely 
suspect.

• Unit Vector Wind Direction(wdir)
• Wind speed, vector-averaged, at 10-m height, 30-min intervals(wspd_va)
• Mean Wind Speed(wspd)

• Mean Wind Speed(wspd)
• Wind speed, 30-min intervals, standard deviation(sd_wspd)
• Wind speed, vector-averaged, at 10-m height, 30-min intervals(wspd_va)
• Unit Vector Wind Direction(wdir)

• Time of Minimum Wind Speed(time_min_wspd)
• Highest gust within hour is reported(max_wspd)
• Minimum Wind Speed(min_wspd)
• Time of Maximum Wind Speed(time_max_wspd)

SGP/SMOS/E6 - Wind Data Incorrect Due to Icing

An ice storm caused the wind data from the RM Young wind sensor to be incorrect.  In many 
instances it was frozen and unmoving, at times it measured values but those are extremely 
suspect.

• Unit Vector Wind Direction(wdir)
• Mean Wind Speed(wspd)
• Wind speed, vector-averaged, at 10-m height, 30-min intervals(wspd_va)
• Wind direction, 30-min intervals, standard deviation(sd_deg)
• Wind speed, 30-min intervals, standard deviation(sd_wspd)

• Minimum Wind Speed(min_wspd)
• Highest gust within hour is reported(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, at 10-m height, 30-min intervals(wspd_va)
• Wind direction, 30-min intervals, standard deviation(sd_deg)

SGP/SMOS/E6 - Barometer Data missing

The barometric pressure values were missing.  A reload of the program fixed the problem.

• Pressure, atmospheric, at 1-m height, 30-min intervals(bar_pres)
• sd_bar_pres

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

• Pressure, atmospheric, at 1-m height, 30-min intervals(bar_pres)

SGP/SMOS - Snowfall caused delayed count of precip

A snow/ice storm moved through the SGP region on 01/31/08 bringing below-freezing 
temperatures, affecting the precip field.  Data is suspect during the date/time range specified 
due to melting ice after temperatures warmed above freezing.

• Precipitation, total(precip)

• Precipitation, total(precip)

• Precipitation, total(precip)

• Precipitation, total(precip)

• Precipitation, total(precip)

• Precipitation, total(precip)

• Precipitation, total(precip)

• Precipitation, total(precip)

• Precipitation, total(precip)

• Precipitation, total(precip)

• Precipitation, total(precip)

• Precipitation, total(precip)

• Precipitation, total(precip)

• Precipitation, total(precip)

• Precipitation, total(precip)

• Precipitation, total(precip)

• Precipitation, total(precip)

• Precipitation, total(precip)

• Precipitation, total(precip)

• Precipitation, total(precip)

• Precipitation, total(precip)

• Precipitation, total(precip)

• Precipitation, total(precip)

• Precipitation, total(precip)

• Precipitation, total(precip)

• Precipitation, total(precip)

• Precipitation, total(precip)

• Precipitation, total(precip)

• Precipitation, total(precip)

• Precipitation, total(precip)

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.

• Unit Vector Wind Direction(wdir)
• Wind speed, vector-averaged, at 10-m height, 30-min intervals(wspd_va)

• Wind speed, vector-averaged, at 10-m height, 30-min intervals(wspd_va)
• Unit Vector Wind Direction(wdir)

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.

• Wind speed, vector-averaged, at 10-m height, 30-min intervals(wspd_va)
• Unit Vector Wind Direction(wdir)

• Unit Vector Wind Direction(wdir)
• Wind speed, vector-averaged, at 10-m height, 30-min intervals(wspd_va)

SGP/SMOS/E4 - Missing Data

Data are missing and unrecoverable

• Wind direction, 30-min intervals, standard deviation(sd_deg)
• Unit Vector Wind Direction(wdir)
• Humidity, relative(rh)
• time_offset
• Mean Wind Speed(wspd)
• lat
• base_time
• alt
• Pressure, atmospheric, at 1-m height, 30-min intervals(bar_pres)
• Wind speed, vector-averaged, at 10-m height, 30-min intervals(wspd_va)
• lon
• Precipitation, total(precip)
• Pressure, vapor, 60-m height, 30-min intervals(vap_pres)
• Temperature, air(temp)

• Wind speed, 30-min intervals, standard deviation(sd_wspd)
• Snow, depth, 30-min intervals(snow)
• Pressure, vapor, 60-m height, 30-min intervals(vap_pres)
• sd_bar_pres
• alt
• base_time
• Pressure, atmospheric, at 1-m height, 30-min intervals(bar_pres)
• Humidity, relative, 30-min intervals, standard deviation(sd_rh)
• Temperature, air, 30-min intervals, standard deviation(sd_temp)
• sd_vap_pres
• Wind speed, vector-averaged, at 10-m height, 30-min intervals(wspd_va)
• Humidity, relative(rh)
• lat
• Wind direction, 30-min intervals, standard deviation(sd_deg)
• snow_sen
• Precipitation, total(precip)
• time_offset
• Unit Vector Wind Direction(wdir)
• Temperature, air(temp)
• lon
• Mean Wind Speed(wspd)
• vbat

• Temperature, air, at 60-m height, 24-hr maximum(max_temp)
• Time of Minimum Temperature(time_min_temp)
• Time of Maximum Wind Speed(time_max_wspd)
• Time of Maximum Barometric Pressure(time_max_bar_pres)
• Temperature, air, at 60-m height, 24-hr minimum(min_temp)
• Minimum Snow Depth(min_snow_depth)
• Time of Minimum Wind Speed(time_min_wspd)
• Maximum Snow Depth(max_snow)
• Pressure, vapor, at 60-m height, 24-hr maximum(max_vap_pres)
• Time of Minimum Barometric Pressure(time_min_bar_pres)
• Humidity, relative, at 60-m height, 24-hr minimum(min_rh)
• Time of Minimum Snow Depth(time_min_snow)
• Time of Relative Humidity(time_min_rh)
• Minimum Barometric Pressure(min_bar_pres)
• Time of Maximum Relative Humidity(time_max_rh)
• lon
• alt
• base_time
• Maximum Barometric Pressure(max_bar_pres)
• Time of Maximum Vapor Pressure(time_max_vap_pres)
• Humidity, relative, at 60-m height, 24-hr maximum(max_rh)
• Highest gust within hour is reported(max_wspd)
• Pressure, vapor, at 60-m height, 24-hr minimum(min_vap_pres)
• Time of Maximum Temperature(time_max_temp)
• lat
• Minimum Wind Speed(min_wspd)
• Time of Minimum Vapor Pressure(time_min_vap_pres)
• time_offset
• Time of Maximum Snow Depth(time_max_snow)

SGP/SMOS/E4 - Missing data

Data are missing and unrecoverable

• Wind direction, 30-min intervals, standard deviation(sd_deg)
• Unit Vector Wind Direction(wdir)
• Humidity, relative(rh)
• time_offset
• Mean Wind Speed(wspd)
• lat
• base_time
• alt
• Pressure, atmospheric, at 1-m height, 30-min intervals(bar_pres)
• Wind speed, vector-averaged, at 10-m height, 30-min intervals(wspd_va)
• lon
• Precipitation, total(precip)
• Pressure, vapor, 60-m height, 30-min intervals(vap_pres)
• Temperature, air(temp)

• Wind speed, 30-min intervals, standard deviation(sd_wspd)
• Snow, depth, 30-min intervals(snow)
• Pressure, vapor, 60-m height, 30-min intervals(vap_pres)
• sd_bar_pres
• alt
• base_time
• Pressure, atmospheric, at 1-m height, 30-min intervals(bar_pres)
• Humidity, relative, 30-min intervals, standard deviation(sd_rh)
• Temperature, air, 30-min intervals, standard deviation(sd_temp)
• sd_vap_pres
• Wind speed, vector-averaged, at 10-m height, 30-min intervals(wspd_va)
• Humidity, relative(rh)
• lat
• Wind direction, 30-min intervals, standard deviation(sd_deg)
• snow_sen
• Precipitation, total(precip)
• time_offset
• Unit Vector Wind Direction(wdir)
• Temperature, air(temp)
• lon
• Mean Wind Speed(wspd)
• vbat

• Time of Relative Humidity(time_min_rh)
• Highest gust within hour is reported(max_wspd)
• time
• Minimum Wind Speed(min_wspd)
• Time of Maximum Temperature(time_max_temp)
• lon
• Time of Maximum Snow Depth(time_max_snow)
• Time of Maximum Relative Humidity(time_max_rh)
• Minimum Snow Depth(min_snow_depth)
• Temperature, air, at 60-m height, 24-hr minimum(min_temp)
• time_offset
• Time of Minimum Temperature(time_min_temp)
• Humidity, relative, at 60-m height, 24-hr minimum(min_rh)
• alt
• Time of Minimum Barometric Pressure(time_min_bar_pres)
• base_time
• lat
• Humidity, relative, at 60-m height, 24-hr maximum(max_rh)
• Pressure, vapor, at 60-m height, 24-hr minimum(min_vap_pres)
• Time of Minimum Wind Speed(time_min_wspd)
• Maximum Barometric Pressure(max_bar_pres)
• Minimum Barometric Pressure(min_bar_pres)
• Maximum Snow Depth(max_snow)
• Time of Minimum Vapor Pressure(time_min_vap_pres)
• Time of Minimum Snow Depth(time_min_snow)
• Temperature, air, at 60-m height, 24-hr maximum(max_temp)
• Time of Maximum Vapor Pressure(time_max_vap_pres)
• Pressure, vapor, at 60-m height, 24-hr maximum(max_vap_pres)
• Time of Maximum Barometric Pressure(time_max_bar_pres)
• Time of Maximum Wind Speed(time_max_wspd)

SGP/SMOS/E15 - Missing Data

Data are missing and unrecoverable

• lat
• Precipitation, total(precip)
• Temperature, air(temp)
• Wind direction, 30-min intervals, standard deviation(sd_deg)
• time_offset
• Pressure, atmospheric, at 1-m height, 30-min intervals(bar_pres)
• Wind speed, vector-averaged, at 10-m height, 30-min intervals(wspd_va)
• Unit Vector Wind Direction(wdir)
• alt
• Mean Wind Speed(wspd)
• Humidity, relative(rh)
• base_time
• lon
• Pressure, vapor, 60-m height, 30-min intervals(vap_pres)

• Pressure, atmospheric, at 1-m height, 30-min intervals(bar_pres)
• Snow, depth, 30-min intervals(snow)
• Humidity, relative(rh)
• base_time
• snow_sen
• time_offset
• Mean Wind Speed(wspd)
• alt
• Wind direction, 30-min intervals, standard deviation(sd_deg)
• Wind speed, vector-averaged, at 10-m height, 30-min intervals(wspd_va)
• Unit Vector Wind Direction(wdir)
• Humidity, relative, 30-min intervals, standard deviation(sd_rh)
• lon
• vbat
• Temperature, air(temp)
• Temperature, air, 30-min intervals, standard deviation(sd_temp)
• lat
• Pressure, vapor, 60-m height, 30-min intervals(vap_pres)
• Precipitation, total(precip)
• sd_vap_pres
• sd_bar_pres
• Wind speed, 30-min intervals, standard deviation(sd_wspd)

• Time of Relative Humidity(time_min_rh)
• Time of Minimum Snow Depth(time_min_snow)
• Time of Minimum Wind Speed(time_min_wspd)
• time_offset
• Time of Maximum Barometric Pressure(time_max_bar_pres)
• Humidity, relative, at 60-m height, 24-hr minimum(min_rh)
• Minimum Wind Speed(min_wspd)
• Time of Maximum Snow Depth(time_max_snow)
• Time of Minimum Vapor Pressure(time_min_vap_pres)
• Maximum Snow Depth(max_snow)
• Temperature, air, at 60-m height, 24-hr maximum(max_temp)
• Pressure, vapor, at 60-m height, 24-hr minimum(min_vap_pres)
• Time of Maximum Wind Speed(time_max_wspd)
• Minimum Barometric Pressure(min_bar_pres)
• Time of Maximum Relative Humidity(time_max_rh)
• lon
• Time of Minimum Temperature(time_min_temp)
• Time of Maximum Temperature(time_max_temp)
• Maximum Barometric Pressure(max_bar_pres)
• Highest gust within hour is reported(max_wspd)
• Humidity, relative, at 60-m height, 24-hr maximum(max_rh)
• alt
• time
• Time of Minimum Barometric Pressure(time_min_bar_pres)
• Pressure, vapor, at 60-m height, 24-hr maximum(max_vap_pres)
• Minimum Snow Depth(min_snow_depth)
• base_time
• Temperature, air, at 60-m height, 24-hr minimum(min_temp)
• lat
• Time of Maximum Vapor Pressure(time_max_vap_pres)

SGP/SMOS/E21 - Missing Data

Data are missing and unrecoverable

• time_offset
• lat
• Humidity, relative, at 60-m height, 24-hr minimum(min_rh)
• Time of Maximum Relative Humidity(time_max_rh)
• Temperature, air, at 60-m height, 24-hr maximum(max_temp)
• Maximum Barometric Pressure(max_bar_pres)
• Humidity, relative, at 60-m height, 24-hr maximum(max_rh)
• Minimum Barometric Pressure(min_bar_pres)
• Time of Minimum Wind Speed(time_min_wspd)
• Time of Minimum Vapor Pressure(time_min_vap_pres)
• Minimum Wind Speed(min_wspd)
• Highest gust within hour is reported(max_wspd)
• alt
• Time of Maximum Vapor Pressure(time_max_vap_pres)
• Time of Minimum Temperature(time_min_temp)
• Time of Relative Humidity(time_min_rh)
• Time of Minimum Barometric Pressure(time_min_bar_pres)
• Time of Maximum Wind Speed(time_max_wspd)
• Maximum Snow Depth(max_snow)
• lon
• base_time
• Temperature, air, at 60-m height, 24-hr minimum(min_temp)
• Minimum Snow Depth(min_snow_depth)
• Time of Minimum Snow Depth(time_min_snow)
• Time of Maximum Temperature(time_max_temp)
• Pressure, vapor, at 60-m height, 24-hr maximum(max_vap_pres)
• Time of Maximum Barometric Pressure(time_max_bar_pres)
• Time of Maximum Snow Depth(time_max_snow)
• Pressure, vapor, at 60-m height, 24-hr minimum(min_vap_pres)

• time_offset
• Temperature, air(temp)
• Precipitation, total(precip)
• Unit Vector Wind Direction(wdir)
• lat
• lon
• Humidity, relative(rh)
• Pressure, atmospheric, at 1-m height, 30-min intervals(bar_pres)
• base_time
• Pressure, vapor, 60-m height, 30-min intervals(vap_pres)
• Wind direction, 30-min intervals, standard deviation(sd_deg)
• alt
• Wind speed, vector-averaged, at 10-m height, 30-min intervals(wspd_va)
• Mean Wind Speed(wspd)

• Pressure, atmospheric, at 1-m height, 30-min intervals(bar_pres)
• Precipitation, total(precip)
• snow_sen
• sd_bar_pres
• Pressure, vapor, 60-m height, 30-min intervals(vap_pres)
• Temperature, air, 30-min intervals, standard deviation(sd_temp)
• time_offset
• Mean Wind Speed(wspd)
• Wind direction, 30-min intervals, standard deviation(sd_deg)
• lat
• lon
• Snow, depth, 30-min intervals(snow)
• base_time
• Humidity, relative, 30-min intervals, standard deviation(sd_rh)
• Temperature, air(temp)
• sd_vap_pres
• Wind speed, 30-min intervals, standard deviation(sd_wspd)
• alt
• Humidity, relative(rh)
• vbat
• Unit Vector Wind Direction(wdir)
• Wind speed, vector-averaged, at 10-m height, 30-min intervals(wspd_va)

SGP/SMOS/E21 - Missing Data

Data are missing and unrecoverable

• Time of Maximum Temperature(time_max_temp)
• Temperature, air, at 60-m height, 24-hr maximum(max_temp)
• Temperature, air, at 60-m height, 24-hr minimum(min_temp)
• Time of Minimum Snow Depth(time_min_snow)
• time
• Highest gust within hour is reported(max_wspd)
• Pressure, vapor, at 60-m height, 24-hr maximum(max_vap_pres)
• Time of Maximum Vapor Pressure(time_max_vap_pres)
• Time of Maximum Wind Speed(time_max_wspd)
• Pressure, vapor, at 60-m height, 24-hr minimum(min_vap_pres)
• Time of Minimum Vapor Pressure(time_min_vap_pres)
• alt
• Humidity, relative, at 60-m height, 24-hr minimum(min_rh)
• Minimum Snow Depth(min_snow_depth)
• Time of Minimum Temperature(time_min_temp)
• Time of Maximum Relative Humidity(time_max_rh)
• lat
• Humidity, relative, at 60-m height, 24-hr maximum(max_rh)
• base_time
• time_offset
• Time of Maximum Snow Depth(time_max_snow)
• Time of Minimum Wind Speed(time_min_wspd)
• Minimum Barometric Pressure(min_bar_pres)
• Time of Relative Humidity(time_min_rh)
• Time of Maximum Barometric Pressure(time_max_bar_pres)
• lon
• Maximum Barometric Pressure(max_bar_pres)
• Time of Minimum Barometric Pressure(time_min_bar_pres)
• Maximum Snow Depth(max_snow)
• Minimum Wind Speed(min_wspd)

• time_offset
• Temperature, air(temp)
• Precipitation, total(precip)
• Unit Vector Wind Direction(wdir)
• lat
• lon
• Humidity, relative(rh)
• Pressure, atmospheric, at 1-m height, 30-min intervals(bar_pres)
• base_time
• Pressure, vapor, 60-m height, 30-min intervals(vap_pres)
• Wind direction, 30-min intervals, standard deviation(sd_deg)
• alt
• Wind speed, vector-averaged, at 10-m height, 30-min intervals(wspd_va)
• Mean Wind Speed(wspd)

• Pressure, atmospheric, at 1-m height, 30-min intervals(bar_pres)
• Precipitation, total(precip)
• snow_sen
• sd_bar_pres
• Pressure, vapor, 60-m height, 30-min intervals(vap_pres)
• Temperature, air, 30-min intervals, standard deviation(sd_temp)
• time_offset
• Mean Wind Speed(wspd)
• Wind direction, 30-min intervals, standard deviation(sd_deg)
• lat
• lon
• Snow, depth, 30-min intervals(snow)
• base_time
• Humidity, relative, 30-min intervals, standard deviation(sd_rh)
• Temperature, air(temp)
• sd_vap_pres
• Wind speed, 30-min intervals, standard deviation(sd_wspd)
• alt
• Humidity, relative(rh)
• vbat
• Unit Vector Wind Direction(wdir)
• Wind speed, vector-averaged, at 10-m height, 30-min intervals(wspd_va)

SGP/SMOS/E6 - Rain Data Incorrect due to Clogged Gauge

Gauge measured incorrectly due to a clogged gauge.

• Precipitation, total(precip)

• Precipitation, total(precip)

SGP/SMOS/E4 - Reprocess: Data Offscale

Data during the listed time period were offscale or failing.  Problem appears to be 
associated with a thunderstorm and rainfall.  The system recovered after the end time listed.

• Wind direction, 30-min intervals, standard deviation(sd_deg)
• Humidity, relative(rh)
• qc_sd_deg
• Pressure, atmospheric, at 1-m height, 30-min intervals(bar_pres)
• qc_temp
• qc_bar_pres
• qc_vap_pres
• Pressure, vapor, 60-m height, 30-min intervals(vap_pres)
• qc_rh
• Temperature, air(temp)

• qc_snow_sen
• Snow, depth, 30-min intervals(snow)
• Pressure, vapor, 60-m height, 30-min intervals(vap_pres)
• sd_bar_pres
• qc_snow
• qc_sd_deg
• Pressure, atmospheric, at 1-m height, 30-min intervals(bar_pres)
• qc_sd_rh
• Humidity, relative, 30-min intervals, standard deviation(sd_rh)
• Temperature, air, 30-min intervals, standard deviation(sd_temp)
• sd_vap_pres
• qc_sd_vap_pres
• qc_vap_pres
• Humidity, relative(rh)
• Wind direction, 30-min intervals, standard deviation(sd_deg)
• qc_temp
• snow_sen
• qc_sd_bar_pres
• qc_sd_temp
• Temperature, air(temp)
• qc_bar_pres
• qc_rh

• Time of Relative Humidity(time_min_rh)
• Time of Maximum Temperature(time_max_temp)
• Time of Maximum Relative Humidity(time_max_rh)
• Time of Maximum Snow Depth(time_max_snow)
• Minimum Snow Depth(min_snow_depth)
• Temperature, air, at 60-m height, 24-hr minimum(min_temp)
• Time of Minimum Temperature(time_min_temp)
• Humidity, relative, at 60-m height, 24-hr minimum(min_rh)
• Time of Minimum Barometric Pressure(time_min_bar_pres)
• Humidity, relative, at 60-m height, 24-hr maximum(max_rh)
• Pressure, vapor, at 60-m height, 24-hr minimum(min_vap_pres)
• Maximum Barometric Pressure(max_bar_pres)
• Minimum Barometric Pressure(min_bar_pres)
• Maximum Snow Depth(max_snow)
• Time of Minimum Vapor Pressure(time_min_vap_pres)
• Time of Minimum Snow Depth(time_min_snow)
• Temperature, air, at 60-m height, 24-hr maximum(max_temp)
• Time of Maximum Vapor Pressure(time_max_vap_pres)
• Pressure, vapor, at 60-m height, 24-hr maximum(max_vap_pres)
• Time of Maximum Barometric Pressure(time_max_bar_pres)

SGP/SMOS/E4 - Data bad due to heavy rain

All data (except wind data) were adversely affected during heavy rainfall.

• Humidity, relative(rh)
• qc_bar_pres
• qc_vap_pres
• Pressure, vapor, 60-m height, 30-min intervals(vap_pres)
• Pressure, atmospheric, at 1-m height, 30-min intervals(bar_pres)
• qc_rh
• qc_temp
• Temperature, air(temp)

• qc_temp
• qc_snow_sen
• Snow, depth, 30-min intervals(snow)
• snow_sen
• Pressure, vapor, 60-m height, 30-min intervals(vap_pres)
• qc_sd_bar_pres
• sd_bar_pres
• qc_sd_temp
• qc_snow
• Pressure, atmospheric, at 1-m height, 30-min intervals(bar_pres)
• qc_sd_rh
• Temperature, air(temp)
• Humidity, relative, 30-min intervals, standard deviation(sd_rh)
• sd_vap_pres
• Temperature, air, 30-min intervals, standard deviation(sd_temp)
• qc_sd_vap_pres
• qc_vap_pres
• qc_bar_pres
• qc_rh
• Humidity, relative(rh)

• Time of Relative Humidity(time_min_rh)
• Pressure, vapor, at 60-m height, 24-hr minimum(min_vap_pres)
• Maximum Barometric Pressure(max_bar_pres)
• Minimum Barometric Pressure(min_bar_pres)
• Time of Maximum Temperature(time_max_temp)
• Time of Maximum Snow Depth(time_max_snow)
• Time of Maximum Relative Humidity(time_max_rh)
• Minimum Snow Depth(min_snow_depth)
• Maximum Snow Depth(max_snow)
• Temperature, air, at 60-m height, 24-hr minimum(min_temp)
• Time of Minimum Vapor Pressure(time_min_vap_pres)
• Time of Minimum Snow Depth(time_min_snow)
• Time of Minimum Temperature(time_min_temp)
• Temperature, air, at 60-m height, 24-hr maximum(max_temp)
• Time of Maximum Vapor Pressure(time_max_vap_pres)
• Pressure, vapor, at 60-m height, 24-hr maximum(max_vap_pres)
• Time of Maximum Barometric Pressure(time_max_bar_pres)
• Humidity, relative, at 60-m height, 24-hr minimum(min_rh)
• Time of Minimum Barometric Pressure(time_min_bar_pres)
• Humidity, relative, at 60-m height, 24-hr maximum(max_rh)