Accession Number : AD0770208

Title :   The Nimbus 5 ESMR (Electrically Scanned Microwave Radiometer) and Its Application to Storm Detection.

Descriptive Note : Final rept. 14 May 72-14 Jul 73,

Corporate Author : EARTH SATELLITE CORP WASHINGTON D C

Personal Author(s) : Sabatini,Romeo R. ; Merritt,Earl S.

Report Date : JUL 1973

Pagination or Media Count : 54

Abstract : Nimbus 5 ESMR computer programs developed by NADA have been modified to run on an IBM 360/65 computer and to accept the format of the Nimbus 5 Stacked Experiment Tape (SET) provided by NASA to the Environmental Prediction Facility. The various ESMR programs available are briefly described and sample ESMR brightness temperature (T(B)) map outputs are presented. The microwave properties of the atmosphere are briefly reviewed. A Nimbus 5 ESMR brightness temperature map of a storm area off the Florida coast on 12 January 1973 is compared with concurrent radar observations. A 5 level atmospheric model was used to calculate atmospheric brightness temperatures under conditions similar to observations. Differences between observed and calculated T(B)'s are explained in terms of inaccurate description of actual atmospheric conditions and the coarseness of our atmospheric model. (Modified author abstract)

Descriptors :   (*Atmospheric precipitation, Aerial photography), Meteorological satellites, Microwave spectroscopy, Data reduction, Computer programming, Atmosphere models

Subject Categories : Meteorology

Distribution Statement : APPROVED FOR PUBLIC RELEASE