AIDJEX Bulletin #40 - Polar Science Center - University of Washington

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Jr Fig. 9. Pressure errors
as a function of wind
component on the pressure
orifice for first
- .s
-1s -10 -5 3 S i0 15 __ and second halves of
K!h3 SPEED X/S the test period.
z z z z z
Dynamic pressures are
most pronounced for
the first half and
for buoy 1663.
ending test deployments with negative results and making that buoy incapable
of measuring external temperature for the rest of.the test. The temperature
sensor on buoy 1663 (the one that was not dropped) functioned well throughout
the data collection, ending speculation that the small thermistor would not
survive the abrasion of blowing snow.
Differences in air temperature between the buoy and the NWS data
averaged less than l0C and showed no evidence of drift. Occasional sharp
differences of about 5OC, especially during the spring, occurred at times
of low wind speed (Fig. 1). The reduced conductive heat transfer with the
air permitted radiative heating of the sensor during the day and radiative
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