SGP/SMOS/E4 - Data logger program changed

The E4 SMOS data logger program was changed on 1 MAY 96 at 1740 GMT in 
  order to improve the reliability of the snow depth measurements.  The 
  1800 GMT 30-minute averaged data was averaged for only 20 minutes.

All sgp30smosE4 data taken during this period should be flagged
 as questionable.

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