AMRC & AWS

AWS ID: 8910B

     SITE NAME: SIPLE
     LOCATION : LAT 75.90 S  LONG 84.30 W  SIPLE STATION 
     HEIGHT   : 900 M (ESTIMATED) 

     DATE ACTIVATED: 26 NOVEMBER 1983
     LAST VISITED  : 26 NOVEMBER 1983

                        SENSORS SERVICED
         SENSOR           PROBLEM           ACTION TAKEN
  AEROVANE(03-78-10)                          INSTALLED
  PRESSURE GAUGE(17490)                       INSTALLED
  TEMP PROBE EXT                              INSTALLED
  TEMP PROBE INT                              INSTALLED
  HUMIDITY PROBE                                NONE 
  DELTA-T PROBE                                 NONE

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

   PRESSURE  859.5    859.7 MB         .2 MB     -         -
   TEMP EXT   15.0     13.0  C       -2.0  C     -         -
   TEMP INT     -        -             -         -         -
   WIND SPD    4.0      3.5 M/S        .5 M/S    -         -
   WIND DIR    285      280 DEG       -5  DEG    -         -

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

   PRESSURE  994.7    994.3 MB        .4 MB      -         -
   TEMP EXT    0.12     0.0  C       -.12 C      -         -
   TEMP INT   15.5     16.0  C        .5  C      -         -
   WIND SPD    .249 M/S/BIT           CAL        -         -
   WIND DIR   180      SOUTH          OK         -         - 
   HUMIDITY     -        -             -         -         -
   DELTA  T     -        -             -         -         -

   COMMENTS:  AWS 8910B WAS PLACED IN OPERATION AT SIPLE REPLACING AWS 8909.  AWS 8910B IS POWERED BY 3 BOXES OF BATTERIES AS SIPLE STATION WILL BE CLOSED FOR TWO YEARS.  THE FIELD CALIBRATION WAS DONE USING STATION READINGS WHICH WERE TAKEN SOME 500 METERS AWAY FROM THE AWS UNIT.  THE BOOM WAS PLACED AT ABOUT 4 METERS AND ELECTRONICS BOX AT 3 METERS TO ALLOW FOR 2 YEARS OF SNOW ACCUMULATION.