DESCRIPTION OF SMALL PROBE NET FLUX RADIOMETER DATA FILES
PREPARED 1 FEB 80

FILE NAMES: SNFR01(NORTH PROBE DATA)
            SNFR02(DAY PROBE DATA)
            SNFR03(NIGHT PROBE DATA)

DEFINITION OF GRID VARIABLES:                                                                                                                                   
     GRT-19H(MIN) = GROUND RECEIPT TIME IN MINUTES AFTER
                    1900 GMT
            Z(KM) = ALTITUDE IN KILOMETERS ABOVE 90.3 BAR
                    PRESSURE SURFACE
           P(BAR) = PRESSURE IN BARS
          TATM(K) = ATMOSPHERIC TEMPERATURE IN DEGREES KELVIN

DEFINITION OF SNFR VARIABLES:
          SENSORT = SNFR EXTERNAL SENSOR TEMPERATURE IN
                    DEGREES KELVIN
       FNET(W/M2) = NET TOTAL RADIATIVE FLUX DENSITY IN WATTS
                    PER SQUARE METER AS MEASURED, WITH POSITIVE
                    SIGNS INDICATING UPWARD FLUX EXCEEDS
                    DOWNWARD FLUX
            FCORR = NET FLUX CORRECTED FOR ESTIMATED EFFECTS
                    OF DEPLOYMENT TRANSIENT, RATE OF CHANGE
                    OF OFFSET, AND NON VERTICAL ATTITUDE

GRID FORMAT AND DATA INTERPOLATION:
  THE DATA FOR EACH PROBE ARE PRESENTED ON THE SAME FIXED
  ALTITUDE GRID TO FACILITATE COMPARISONS; 1KM SPACING IS USED
  EVERYWHERE EXCEPT BETWEEN 46KM AND 51KM WHERE 0.5KM SPACING
  IS USED TO RESOLVE FEATURES NEAR THE LOWER CLOUD BASE.

  CORRESPONDING TIMES, PRESSURES, AND ATMOSPHERIC TEMPERATURES
  ARE INTERPOLATED FROM SMALL PROBE ATMOSPHERIC STRUCTURE DATA
  DISTRIBUTED IN MARCH 79.  THESE WILL BE UPDATED WHEN REVISED
  SAS DATA IS AVAILABLE FOR ALL SMALL PROBES.

  SNFR DATA VALUES ARE DERIVED FOR EACH GRID POINT BY LINEAR
  REGRESSION OF MEASURED VALUES IN THE NEIGHBORHOOD OF THE GRID
  POINT; THE SIZE OF THE NEIGHBORHOOD IS CHOSEN TO PRODUCE
  SMOOTHING COMPATIBLE WITH THE GRID SPACING.
                                                                                
SPECIAL NOTES:
  FOR SOME GRID POINTS SNFR DATA IS NOT AVAILABLE OR NOT
  RELIABLE; 9999.00 REPLACES SNFR DATA AT THESE POINTS.