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.

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

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