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Wind direction alias removal studies of Seasat scatterometer-derived wind fieldsSeasat SASS fields for the North Atlantic were employed to test if meteorological features were discernible within the Seasat-produced wind fields, and if the features aided in determining a unique wind vector solution. Two groups were formed to work in isolation from each other until a true wind vector field was obtained for each SASS observation. The SASS data covered 1500 km swaths, and the angle of the Seasat antennas relative to the earth was known. Visible and IR data, along with surface weather stations, ship and ship buoy data were also available to the interpreters. Two-vector solutions by the two teams showed almost perfect agreement, and the alias problem was noted to reduce to a selection of two vectors 180 deg apart. Comparisons with the surface measurements in regards to wind directions resulted in agreement to within a standard deviation of 20% for direction. The SASS data is concluded to be useful for producing streamlines, isotachs, and mesoscale as well as cyclone-scale features.
Document ID
19820046085
Acquisition Source
Legacy CDMS
Document Type
Reprint (Version printed in journal)
Authors
Wurtele, M. G.
(California Univ. Los Angeles, CA, United States)
Borowski, M.
(California, University Los Angeles, CA, United States)
Woiceshyn, P. M.
(California Institute of Technology, Jet Propulsion Laboratory, Pasadena CA, United States)
Peteherych, S.
(Department of the Environment, Atmospheric Environment Service, Downsview Ontario, Canada)
Appleby, W. S.
(Department of the Environment, Atmospheric Environment Science, Hull Quebec, Canada)
Date Acquired
August 10, 2013
Publication Date
April 30, 1982
Publication Information
Publication: Journal of Geophysical Research
Volume: 87
Subject Category
Meteorology And Climatology
Accession Number
82A29620
Funding Number(s)
CONTRACT_GRANT: NAS7-100
Distribution Limits
Public
Copyright
Other

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