Accession Number : ADA192299

Title :   Validate Algorithms for the Determination of Rainfall Rates from SSM/I Microwave Satellite Imagery.

Descriptive Note : Progress rept. Dec 87-Jan 88,

Corporate Author : WISCONSIN UNIV-MADISON SPACE SCIENCE AND ENGINEERING CENTER

Personal Author(s) : Roberts, John P

PDF Url : ADA192299

Report Date : 22 Feb 1988

Pagination or Media Count : 8

Abstract : During the past two months, our research activities have included (a) updating our catalog of rain cases observed by the SSM/I coincident with radar coverage from our primary or secondary sites, (b) ordering SSM/I, radar, and raingage data for the aforementioned cases, (c) processing the gage-calibrated United Kingdom radar data and merging this data with SSM/I observations to create statistics files, (d) developing software for deriving gage calibration coefficients to be used with uncalibrated radars, (e) writing routines for applying BMDP scatterplot and step-wise multiple linear regression software to the SSM/I-ground truth statistics files, and (f) adapting the NCAR SCD plotting package for the contouring of data fields and the production of other high-quality graphics. In addition, software for creating vertical integrals of volume-scan radar data has been nearly completed. Codes are also under development (with the cooperation of Dr. Gene Poe of NRL) for constructing antenna pattern-matching filters. We are continuing our collaboration with Dr. Chris Kummerow and his colleagues at the Severe Storms Branch of NASA/Goddard Space FLight Center. By this cooperative effort we hope to expedite the radiative transfer modeling necessary for the analysis of SSM/I-ground truth data sets and improve the current rain rate algorithm.

Descriptors :   *RAINFALL INTENSITY, ALGORITHMS, ANTENNA COMPONENTS, ARTIFICIAL SATELLITES, BANDPASS FILTERS, CALIBRATION, CATALOGS, COEFFICIENTS, COMPUTER PROGRAMS, CONTOURS, DATA BASES, DETERMINATION, FIELDS(COMPUTER PROGRAMS), FILES(RECORDS), GAGES, HIGH RATE, IMAGES, INTEGRALS, INTENSITY, MATCHING, MICROWAVE EQUIPMENT, MICROWAVES, MODELS, PATTERNS, PRODUCTION, RADAR, RADIATIVE TRANSFER, RAIN, RATES, SECONDARY, SITES, STATISTICS, STORMS, VERTICAL ORIENTATION, WRITING

Subject Categories : Atmospheric Physics

Distribution Statement : APPROVED FOR PUBLIC RELEASE