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Proceedings Paper

Interannual variability in global wave climate from satellite data
Author(s): David P. Cotton; David J.T. Carter
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Paper Abstract

This paper presents an analysis of altimeter wave height data, spanning a period of 9 years, provided by the Geosat, ERS-a and Topex/Poseidon satellite programs. Monthly means are derived for 2 degree latitude by 2 degree longitude bins from data for each of the three satellites, and these data sets are then intercompared with each other and against NOAA buoy wave height month means. Consistent differences are shown to exist between the various data sets, and correction factors to adjust the satellite data to the buoy measurements are suggested. These correction factors are applied to the monthly mean satellite data, which are then analyzed to investigate interannual variability since 1986. Analysis of Geosat data (for 1986- 1989) has suggested the possibility of a negative correlation between the mean winter wave heights in the NE Atlantic and the NE Pacific, and a positive correlation between the NE Atlantic values and the El Nino Southern Oscillation Index. As preliminary study with ERS-1 and TOPEX data has shown similar wave climate patterns over the period 1991-1994.

Paper Details

Date Published: 21 December 1994
PDF: 7 pages
Proc. SPIE 2319, Oceanic Remote Sensing and Sea Ice Monitoring, (21 December 1994); doi: 10.1117/12.197283
Show Author Affiliations
David P. Cotton, James Rennell Ctr. for Ocean Circulation (United Kingdom)
David J.T. Carter, Satellite Observing Systems (United Kingdom)


Published in SPIE Proceedings Vol. 2319:
Oceanic Remote Sensing and Sea Ice Monitoring
Johnny Andre Johannessen; Trevor H. Guymer, Editor(s)

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