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An interactive system for compositing digital radar and satellite dataThis paper describes an approach for compositing digital radar data and GOES satellite data for meteorological analysis. The processing is performed on a user-oriented image processing system, and is designed to be used in the research mode. It has a capability to construct PPIs and three-dimensional CAPPIs using conventional as well as Doppler data, and to composite other types of data. In the remapping of radar data to satellite coordinates, two steps are necessary. First, PPI or CAPPI images are remapped onto a latitude-longitude projection. Then, the radar data are projected into satellite coordinates. The exact spherical trigonometric equations, and the approximations derived for simplifying the computations are given. The use of these approximations appears justified for most meteorological applications. The largest errors in the remapping procedure result from the satellite viewing angle parallax, which varies according to the cloud top height. The horizontal positional error due to this is of the order of the error in the assumed cloud height in mid-latitudes. Examples of PPI and CAPPI data composited with satellite data are given for Hurricane Frederic on 13 September 1979 and for a squall line on 2 May 1979 in Oklahoma.
Document ID
19830058651
Acquisition Source
Legacy CDMS
Document Type
Reprint (Version printed in journal)
Authors
Heymsfield, G. M.
(NASA Goddard Space Flight Center Laboratory for Atmospheric Sciences, Greenbelt, MD, United States)
Ghosh, K. K.
(NASA Goddard Space Flight Center Greenbelt, MD, United States)
Chen, L. C.
(General Software Corp. Landover, MD, United States)
Date Acquired
August 11, 2013
Publication Date
May 1, 1983
Publication Information
Publication: Journal of Climate and Applied Meteorology
Volume: 22
ISSN: 0733-3021
Subject Category
Meteorology And Climatology
Accession Number
83A39869
Distribution Limits
Public
Copyright
Other

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