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A FGGE water vapor wind data setIt has been recognized for some time that water vapor structure visible in infrared imagery offers a potential for obtaining motion vectors when several images are considered in sequence (Fischer et al., 1981). A study evaluating water vapor winds obtained from the VISSR atmospheric sounder (Stewart et al., 1985) has confirmed the viability of the approach. More recently, 20 data sets have been produced from METEOSAT water vapor imagery for the FGGE period of 10-25 November 1979. Where possible, two data sets were prepared for each day at 0000 and 1200 GMT and compared with rawinsondes over Europe, Africa, and aircraft observations over the oceans. Procedures for obtaining winds were, in general, similar to the earlier study. Motions were detected both by a single pixel tracking and a cross correlation method by using three images individually separated by one hour. A height assignment was determined by matching the measured brightness temperature to the temperature structure represented by the FGGE-IIIB analyses. Results show that the METEOSAT water vapor winds provide uniform horizontal coverage of mid-level flow over the globe with good accuracy.
Document ID
19930072871
Acquisition Source
Legacy CDMS
Document Type
Conference Paper
Authors
Stewart, Tod R.
(Wisconsin Univ. Madison, WI, United States)
Hayden, Christopher M.
(National Environmental Satellite Service Madison, WI., United States)
Date Acquired
August 16, 2013
Publication Date
January 1, 1985
Publication Information
Publication: NASA. Goddard Space Flight Center, Proceedings of the NASA Symposium on Global Wind Measurements
Subject Category
Meteorology And Climatology
Accession Number
93N70318
Distribution Limits
Public
Copyright
Work of the US Gov. Public Use Permitted.
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