Accession Number : AD0688434

Title :   RADAR-COMPUTED RAINFALL COMPARED WITH OBSERVATIONS FROM A DENSE NETWORK OF RAIN GAUGES.

Descriptive Note : Technical note,

Corporate Author : ENVIRONMENTAL TECHNICAL APPLICATIONS CENTER (AIR FORCE) WASHINGTON D C

Personal Author(s) : Ross,Martin

Report Date : JUN 1969

Pagination or Media Count : 10

Abstract : Using Wilson's Rainfall Rate - Echo Intensity (RR-EI) chart, based on the average relationship, radar data collected for 36 hours, using the US Weather Bureau's WSR-57 at Atlantic City, New Jersey, are compared with rainfall data from three tipping-bucket rain gauges. These tipping-bucket gauges are located within 60 nm of the radar and cover a 4.8 square-mile area. Comparisons between the radar and tipping-bucket gauges are shown. Radar measurements were within 2% of the total rain gauge average. The correlation coefficient was .91. Use of the US Weather Bureau's RR-EI chart would have underestimated the average areal precipitation. Hourly rainfall amounts of 0.01 inches were detected in 80% of the cases. Hourly amounts of 0.02 inches or more were detected in 100% of the cases. (Author)

Descriptors :   (*METEOROLOGICAL INSTRUMENTS, RAINFALL), (*METEOROLOGICAL RADAR, RAINFALL), (*RAINFALL, MEASUREMENT), NETWORKS, INTENSITY, RADAR CROSS SECTIONS, DETECTION, STORMS, DATA PROCESSING, ACCURACY, CORRELATION TECHNIQUES

Subject Categories : Meteorology

Distribution Statement : APPROVED FOR PUBLIC RELEASE