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

The output precision of the following variables was increased 20060928

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.

• Surface dew point temperature(dp)
• Dry bulb temperature(tdry)
• Relative humidity inside the instrument enclosure(rh)
• Retrieved pressure profile(pres)
• Dummy altitude for Zeb(alt)

SGP/TWR/C1 - Southeast Side (10X) Temperature and RH Spikes

Southeast side 25 m and 60 m (10X datastreams) carriage connectors may not have been well 
connected; temperatures and relative humidities spiked sometimes.  This problem occurred 
after the carriages were lowered on 12/04.

• Relative humidity at 60 m(rh_60m)
• Relative humidity at 25 m(rh_25m)
• Vapor pressure at 25 m(vap_pres_25m)
• Temperature at 25 m(temp_25m)
• Vapor pressure at 60 m(vap_pres_60m)
• Temperature at 60 m(temp_60m)

• Vapor pressure at 25 m(vap_pres_25m)
• Vapor pressure at 60 m(vap_pres_60m)
• Standard Deviation of 25 m Temperature(sd_temp_25m)
• Temperature at 60 m(temp_60m)
• Standard Deviation of 60 m Vapor Pressure(sd_vap_pres_60m)
• Standard Deviation of 25 m Relative Humidity(sd_rh_25m)
• Relative humidity at 25 m(rh_25m)
• Relative humidity at 60 m(rh_60m)
• Standard Deviation of 60 m Relative Humidity(sd_rh_60m)
• Standard Deviation of 60 m Temperature(sd_temp_60m)
• Standard Deviation of 25 m Vapor Pressure(sd_vap_pres_25m)
• Temperature at 25 m(temp_25m)