SGP/SMOS/E8 - Data logger software upgraded

The SMOS E8 data logger software was upgraded on 30 APR 96 at 1855 GMT 
to improve the reliability of the snow depth measurements.  All 30-min 
averaged data reported at 1900 GMT was averaged for only 5 minutes.

All sgp30smosE8 data reported at 30 APR 96, 1900 GMT should be 
flagged as questionable.

• snow
• rh
• snow_sen
• alt
• lon
• vbat
• precip
• wdir
• sd_deg
• wspd_va
• base_time
• wspd
• sd_temp
• temp
• sd_bar_pres
• bar_pres
• vap_pres
• sd_vap_pres
• sd_wspd
• sd_rh
• time_offset
• lat