Microfronts 1995 Fixed CLASS Upper Air Sounding Data sets 
     
     
     1.0  General Description
     
          This is one of the upper air sounding data sets developed for the
     Microfronts Experiment conducted during March 1995 at DeGraff, Kansas.
     The final data set consists of 10-sec resolution files.  Please see
     the Microfronts Operations Summary Document for more information.
     
     2.0  Detailed Data Description
     
          For each sounding, this dataset contains the data type, project ID,
     site ID, site location, release time, radiosonde type, meteorological and wind
     data processors, and the operators name and comments.  Additionally, for 
     each sounding level, this dataset contains the time from release, pressure,
     temperature, dew point, relative humidity, U and V wind components, wind
     speed and direction, ascent rate, balloon position data, altitude, and quality
     control flags (see QC code description).  
     
     QC Code Description

     Code      Description
     
     99.0  Unchecked (QC information is "missing.")  ("UNCHECKED")
     1.0   Checked, datum seems physically reasonable.  ("GOOD")
     2.0   Checked, datum seems questionable on physical basis.  ("MAYBE")
     3.0   Checked, datum seems to be in error.  ("BAD")
     4.0   Checked, datum is interpolated.  ("ESTIMATED")
     9.0   Checked, datum was missing in original file.  ("MISSING")
     
     2.1  Data Remarks
     
     Note that some soundings were deployed in an up-sonde and down-sonde mode.
     These datasets have been seperated into two soundings.  Details of the 
     parachute-based down-sonde can be obtained from:

     Eric Miller
     NCAR/SSSF
     P. O. Box 3000
     Boulder Co 80307-3000


     3.0  Quality Control Processing
 
    
          This data set underwent a two-stage QC process.  First, the data set
     underwent  internal consistency checks.  This included two types of
     checks, "reasonable" limit checks on all parameters and rate-of-change
     checks on temperature, pressure and ascension rate.  Second, each
     sounding was visually examined to verify those parameters that are too
     variable for automatic checks (wind speed, wind direction and moisture). 
     This stage of the QC process also allows for a verification of the QC flags
     generated by the automatic checks. 

     4.0  References