NSA/SONDE/C1 - Increased precision for alt, dp, pres, rh, tdry

The output precision of the following variables was increased 20060929:

   alt	changed from 1m to 0.1m
   dp	changed from 0.1degC to 0.01degC
   pres changed from 0.1 hPa to 0.01 hPa
   RH	changed from 1%RH to 0.01%RH
   tdry changed from .1degC to 0.01degC

Note that the increase in precision does not necessarily imply an increase
in accuracy.  Users are cautioned to continue to use their best scientific
judgement when using these or any other data.

• alt
• Dry Bulb Temperature(tdry)
• Dewpoint Temperature(dp)
• Pressure, atmospheric, constant value of model level, RUC model output(pres)
• Humidity, relative(rh)

NSA/SONDE/C1 - 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 not data was collected.  A workaround 
was developed to allow sondes to be launched without collecting wind data.

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

NSA/SONDE/C1 - Wind data missing

After some power disruptions, the Power Supply board of the SPS220 ground station was 
damaged.  The damage caused the supply to not have enough power to run the GPS board.  
Switching to the back up DigiCora II did not alleviate the problem as the fix for GPS failure 
to all Vaisala sonde products had not been installed.  A different P/S was found and sent 
up to replace the failed one.

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