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.

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

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