SGP/SMOS/E13 - RH sensor failure

The T/RH sensor relative humidity data is suspect during this time.  Values from this 
sensor failed the 6-month check and subsequent bi-weekly checks.  The RH values were lower by 
larger than the manufacturer suggested uncertainty of 3%.

Use RH data from nearby sensors such as the EBBR and/or THWAPS.

• Time of maximum relative humidity(time_max_rh)
• Minimum Relative Humidity(min_rh)
• Time of maximum vapor pressure(time_max_vap_pres)
• Time of Relative Humidity(time_min_rh)
• Daily maximum relative humidity(max_rh)
• Time of minimum vapor pressure(time_min_vap_pres)
• Daily minimum vapor pressure(min_vap_pres)
• Maximum Vapor Pressure(max_vap_pres)

• Standard Deviation of Relative Humidity(sd_rh)
• Standard deviation of vapor pressure(sd_vap_pres)
• Relative Humidity (hybrid-b grid)(rh)
• Vapor Pressure (kiloPascals)(vap_pres)

• Relative Humidity (hybrid-b grid)(rh)
• Vapor Pressure (kiloPascals)(vap_pres)