Ocean wave directional spectra estimation from an HF ocean radar with a single antenna array: Observation

A method of estimating ocean wave directional spectra using a]high‐frequency (HF) radar with a single antenna array was applied to actual ocean data. This method incorporates the wave energy balance equation and the continuity equation of wind vectors into the inversion method to solve the integral...

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Bibliographic Details
Published in:Journal of Geophysical Research. C. Oceans 2005-11, Vol.110 (C11), p.C11004.1-n/a
Main Author: Hisaki, Yukiharu
Format: Article
Language:English
Subjects:
Antenna arrays
Doppler
Doppler effect
Earth sciences
Earth, ocean, space
Estimates
Exact sciences and technology
HF ocean radar
Marine
Mathematical analysis
Oceans
Radar
Spectra
surface wave
wave spectrum
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Summary:A method of estimating ocean wave directional spectra using a]high‐frequency (HF) radar with a single antenna array was applied to actual ocean data. This method incorporates the wave energy balance equation and the continuity equation of wind vectors into the inversion method to solve the integral equation which relates a Doppler spectrum to wave spectra. This method uses dynamic extrapolation to estimate wave spectra at positions where the signal‐to‐noise (SN) ratio in Doppler spectra is not high. The agreement of wave heights with in situ observation is good. Additionally, there is a correlation between radar‐estimated sea surface winds and winds near the HF radar observation area. The method under consideration was found to be able to estimate wave directional spectra in swell conditions.
ISSN:0148-0227
2169-9275
2156-2202
2169-9291
DOI:10.1029/2005JC002881