AWS ID: 8907 SITE NAME: FERRELL SITE LOCATION : LAT 78.02 S LONG 170.80 E HEIGHT : 44 M DATE ACTIVATED: 10 DEC 1980 LAST VISITED : 11 DEC 1983 SENSORS SERVICED SENSOR PROBLEM ACTION TAKEN AEROVANE(12-78-16) CHECKED PRESSURE GAUGE(4731) CHECKED TEMP PROBE EXT CHECKED TEMP PROBE INT CHECKED HUMIDITY PROBE NONE DELTA-T PROBE NONE FIELD CALIBRATION CALIBRATION DIFFERENCE VARIABLE AWS MEASURED AS 83/84 AS 82/83 AS 81/82 PRESSURE 985.5 984.8 MB -0.7 MB - - TEMP EXT - - - - - TEMP INT - - - - - WIND SPD - - - - - WIND DIR 215 SSW EST OK - - LABORATORY CALIBRATION CALIBRATION DIFFERENCE VARIABLE AWS MEASURED AS 83/84 AS 82/83 AS 81/82 PRESSURE 980.6 979.7 MB -0.9 MB - - TEMP EXT -22.5 -21.75 C 0.75 C - - TEMP INT 10.75 11.5 C 0.75 C - - WIND SPD .222 M/S/BIT .0 M/S - - WIND DIR 177 SOUTH 0 DEG - - HUMIDITY NONE NONE DELTA T NONE NONE COMMENTS: AWS 8907 HAD CEASED OPERATING ON AUGUST 22 1983. INSPECTION SHOWED THAT WATER FROM MELTING SNOW HAD CORRODED ONE EDGE OF THE CPU BOARD. THE DAMAGE ACTUALLY BROKE ONE OF THE TRACES ON THE BOARD. THE BOARD WAS CLEANED AND REPAIRED. ALSO, THE AWS BOX WAS SECURED SO THAT SNOW COULD NOT AS EASILY GET INTO THE BOX.