Accession Number : ADA193198

Title :   Definition of Long Ocean Wave Slope for Radar Applications.

Descriptive Note : Memorandum rept.,

Corporate Author : NAVAL RESEARCH LAB WASHINGTON DC

Personal Author(s) : Trizna, Dennis B ; Martin, Lee U

PDF Url : ADA193198

Report Date : 04 Mar 1988

Pagination or Media Count : 42

Abstract : Consideration is given to the definition of open ocean long wave slope, as a parameter for correlation with radar section (RCS). In preparation for studies of dependence of short pulse radar statistics on long wave features, we have re-examined the long time averaged RCS data previously reported by Keller, Plant and Weissman (KPW), and its dependence on in-situ measurements of long wave slope. Comparisons of RCS are made with the significant slope defined by Huang and Long, using ocean wave spectrum features; the 'radar slope' defined a KPW, using wave spectral features inferred from radar Doppler measure of orbital wave motions; and a variety of slope definitions from zero-crossing analysis of surface variance time series measured by a wave gauge. It appears that the in-situ measurements correlate with RCS better than the 'radar slope'. Possible reasons for this are discussed.

Descriptors :   *OCEAN WAVES, *RADAR REFLECTIONS, DOPPLER RADAR, GAGES, LONG RANGE(TIME), LONG WAVELENGTHS, MOTION, RADAR, SHORT PULSES, SLOPE, SPECTRA, STATISTICS, SURFACES, TIME SERIES ANALYSIS, VARIATIONS, RADAR CROSS SECTIONS, REMOTE SYSTEMS

Subject Categories : Active & Passive Radar Detection & Equipment
      Physical and Dynamic Oceanography

Distribution Statement : APPROVED FOR PUBLIC RELEASE