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

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)

Document Details

Document Type
Technical Report
Publication Date
Jun 01, 1969
Accession Number
AD0688434

Entities

People

  • Martin Ross

Tags

DTIC Thesaurus Topics

  • Coefficients
  • Gages
  • Intensity
  • Measurement
  • New Jersey
  • Observation
  • Precipitation
  • Rain
  • Rain Gages
  • Rainfall

Fields of Study

  • Environmental science

Readers

  • Atmospheric Science/Meteorology
  • Coastal and Marine Engineering/Sediment Transport/Hydraulic Engineering
  • Mathematics or Statistics