Validate Algorithms for the Determination of Rainfall Rates from SSM/I Microwave Satellite Imagery.
Abstract
Having completed all software necessary for the validation, we are performing the validation of the Hughes rain retrieval algorithm utilizing validation sites from which we have received comparative radar data. So far we have received radar data from sites in the United Kingdom; Marshall, Colorado; and Cape Canaveral Florida covering the summer and some of the fall months of 1987. Based upon the recommendations of Dr. Gene Poe of NRL, and auxiliary information from James Peirce of Hughes Aircraft Co., we have made long-and cross-track shifts of the SSM/I data and derived products (EDR's) to account for data earth-location errors. Our own investigations have shown that without such adjustments, rain signatures in the satellite data do not correlate with regions of precipitation, which often are relatively small scale. Earth-location errors have been observed to be as great as 25 km downtrack and 12.5 km cross-track (in the direction of scan motion) in the U.K. region on ascending passes, based upon comparisons with coastline geography.
Document Details
- Document Type
- Technical Report
- Publication Date
- May 05, 1988
- Accession Number
- ADA195428
Entities
People
- William S. Olson
Organizations
- University of Wisconsin–Madison