GRW/SONDE/M1 - Wind data missing

A GPS problem associated with Vaisala BBSS ground station software issues caused the 
ground stations to enter into an error state when using GPS wind finding. In some instances, 
the flight was aborted due to the error state and no data was collected.  A workaround was 
developed to allow sondes to be launched without collecting wind data.

• Northward Wind Component(v_wind)
• Eastward Wind Component(u_wind)
• wstat
• Mean Wind Speed(wspd)

GRW/MET/M1 - Temperature/RH Aspirator Failure

The aspirator fan on the solar shield failed causing incorrect readings on the temp, RH 
and calculated variables.

• Temperature mean(temp_mean)
• relh_sd
• Vapor pressure mean(vappress_mean)
• Relative humidity mean(relh_mean)
• vappress_sd
• temp_sd

GRW/MET/M1 - Reprocess: ORG Data has very small rainrate values

The ORG data is collected via analog signal and not digital.  Therefore, we continuously 
collect data even when no rain is occurring.  We also capture small events such as leaves, 
large bugs, dust, etc blowing through the measurement path.  Because this discrete event 
occurs quickly the value is usually captured for 1 or 2 seconds.  This value is then 
averaged to the minute producing rainrate on the order of .009 mm/hr or less.  

These values are not indicative of rain and should be removed from the record or summing 
over long periods can bias the climate record.  We will reprocess the data to remove these 
small values.

• precip_rate_sd
• Rain, surface, 1-min avg(precip_rate_mean)
• precip_rate_min
• precip_rate_max