AWS ID: 8921B

     SITE NAME: MARILYN
     LOCATION : LAT 79.98 S  LONG 165.03 E  ON RIS FROM BYRD GLACIER
     HEIGHT   : 75 M (ESTIMATED) 

     DATE ACTIVATED: 16 JANUARY 1984
     LAST VISITED  : 16 JANUARY 1984

                        SENSORS SERVICED
         SENSOR           PROBLEM           ACTION TAKEN
  AEROVANE(11-78-06)                          INSTALLED
  PRESSURE GAUGE(17489)                       INSTALLED
  TEMP PROBE EXT                              INSTALLED
  TEMP PROBE INT                              INSTALLED
  HUMIDITY PROBE                              INSTALLED 
  DELTA-T PROBE                               INSTALLED

                        FIELD CALIBRATION
           CALIBRATION                       DIFFERENCE
   VARIABLE    AWS    MEASURED      AS 83/84  AS 82/83  AS 81/82

   PRESSURE  987.8    987.2 MB        -.6 MB     -         -
   TEMP EXT     -        -             -         -         -
   TEMP INT     -        -             -         -         -
   WIND SPD     -        -             -         -         -
   WIND DIR     -        -             -         -         -

                     LABORATORY CALIBRATION
           CALIBRATION                      DIFFERENCE
   VARIABLE    AWS    MEASURED      AS 83/84  AS 82/83  AS 81/82

   PRESSURE     -        -             -         -         -
   TEMP EXT    .12      0.0  C         .0  C     -         -
   TEMP INT  19.25     19.5  C         .25 C     -         -
   WIND SPD    .254 M/S/BIT           CAL        -         -
   WIND DIR    OK    N-E-S-W-N        CAL        -         - 
   HUMIDITY   .55*BITS-22    %        CAL        -         -
   DELTA  T   .12*(BITS-201) C         -         -         -

   COMMENTS:  AWS 8921B WAS DEPLOYED SOME 120 KILOMETERS FROM THE BASE OF THE BYRD GLACIER ON THE ROSS ICE SHELF.  HUMIDITY TEMPERATURE DIFFERENCE PROBES ( AT 20 AND 92 INCHES) WERE INCLUDED.