A synoptic/statistical analysis of summer season circulation patterns over eastern Antarctica during moist air intrusions.
synopticstatisti00fauq.pdf (5.670Mb)Abstract
U.S. Navy weather forecasters in Antarctica provide
forecast services for aviation and field operations of the
U.S. Antarctic Research Programs. Due to very limited
conventional data/ meteorological satellite imagery becomes a
primary resource for circulation diagnosis. However,
qualitative interpretation techniques, as used in Antarctica,
fail to provide definitive information on the intensity of
synoptic features.
A compositing technique was used in the study to identify
a 400 mb geopotential height anomally pattern common to a
satellite-observed cloud signature indicating moist air
intrusions onto the continent. Two test cases, one dependent
and one independent, are explored to determine the usefulness
of the height anomaly pattern as an operational analysis aid
over the data sparse regions of eastern Antarctica. Finally,
the model 400 mb analysis is compared qualitatively to the
National Meteorological Center and Fleet Numerical
Oceanography Center 500 mb analyses for the same times.
The model developed in the study shows some promise of
improving the operational Naval Support Force Antarctica
circulation analyses in data poor areas.
Rights
This publication is a work of the U.S. Government as defined in Title 17, United States Code, Section 101. Copyright protection is not available for this work in the United States.Collections
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