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.

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

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

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

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

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

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