A discussion of wave prediction in the northwest Atlantic ocean

C. L. Vincent, D. T. Resio

Research output: Contribution to journalArticlepeer-review

Abstract

Simulation of a wave climate for the Atlantic Ocean through hindcasting is discussed in terms of methods for obtaining historical wind fields and available numerical models for hindcasting directional spectra. Available, gridded pressure and wind data produced recently by the U. S. Navy Fleet Numerical Weather Central a-re shown to be distorted near major storms leading to the necessity of redigitizing major storm areas from synoptic weather charts the optimal method of redigitizing major storm areaas from stnoptic weather charts. The optimal method for using most of the available oceanographic data to produce the wind fields is one in which the surface wind field is estimated from the pressure field, and is estimated from the pressure field, and temperature (air and sea) fields through a planetary boundary layer model. Afterwards, the available ships wind-field observations are blended into the estimate. A root-mean-square error of less than 3 mps on speed appears obtainable. Several numerical models for directional spectral wave estimation are reviewed. Each model is examined in terms of source mechanisms and propagation schemes. Models with wave-wave interaction source terms appear to perform better in tests of wave growth with fetch as well as in field estimation. Models with a fourth-order or ray propagation schemes appear adequate for oceanic hindcasts while first order propagation schemes appear to disperse.

Original languageEnglish (US)
Pages (from-to)71-90
Number of pages20
JournalElsevier Oceanography Series
Volume25
Issue numberC
DOIs
StatePublished - Jan 1 1979
Externally publishedYes

ASJC Scopus subject areas

  • Oceanography

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