Directional characteristics of wind-wave development under high-resolution wind fields

Teruhisa Shimada, Hiroshi Kawamura

研究成果: Conference contribution

抄録

We investigate fetch-limited wind-wave development under alternating coastal wind jets and wakes induced by orographic effects. Synthetic Aperture Radar and scatterometer resolve wind jets and wakes with widths of 10-40 km. Using the wind field and a third-generation wave model, we simulate the nearshore wave field. As a result, broader directional wave spectra are seen in wakes while we can find evolution of the directional wave spectrum with offshore distance in both wind jets and wakes. Especially within the offshore distance of 40 km, directional wave spectra have two peaks. These characteristics are well reflected in the overall directional spreading field. The overall directional spreading closely corresponds to the wind speed distribution, and is small/large in wind jet/wake region. The results mean that wave energies that come from neighboring wind jet regions cross in wake regions and combine with wave energy generated by local wind in wake regions.

本文言語English
ホスト出版物のタイトルProgress in Electromagnetics Research Symposium 2006, PIERS 2006 Tokyo
出版社Electromagnetics Academy
ページ620-624
ページ数5
ISBN(印刷版)9781629939513
出版ステータスPublished - 2006 1月 1
イベントProgress in Electromagnetics Research Symposium 2006, PIERS 2006 Tokyo - Tokyo, Japan
継続期間: 2006 8月 22006 8月 5

Other

OtherProgress in Electromagnetics Research Symposium 2006, PIERS 2006 Tokyo
国/地域Japan
CityTokyo
Period06/8/206/8/5

ASJC Scopus subject areas

  • 電子工学および電気工学
  • 電子材料、光学材料、および磁性材料

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