Physical processes of microwave backscattering from laboratory wind-wave surfaces

Naoto Ebuchi, Hiroshi Kawamura, Yoshiaki Toba

研究成果: Conference contribution

抄録

Microwave backscattering from wind-wave surfaces in a wind-wave tank is investigated by using an X-band (9.6 GHz) scatterometer. The radar beam is focused on the water surface by using an ellipsoidal antenna to clarify phase relationships between the backscattered signature and the wind-wave surfaces. At a slant incidence angle (45° upwind), the backscattered intensity and the Doppler velocity are in phase with the surface displacement. High Doppler velocity observed at the crests of the individual waves coincides with the propagating speed of the crests. It is concluded that the fine structures of wind-wave surfaces, which are trapped near the crests and are propagating with the crests, are main contributor to the microwave backscattering.

本文言語English
ホスト出版物のタイトルBetter Understanding of Earth Environment
編集者Sadao Fujimura
出版社Publ by IEEE
ページ773-775
ページ数3
ISBN(印刷版)0780312406
出版ステータスPublished - 1993
イベントProceedings of the 13th Annual International Geoscience and Remote Sensing Symposium - Tokyo, Jpn
継続期間: 1993 8月 181993 8月 21

出版物シリーズ

名前International Geoscience and Remote Sensing Symposium (IGARSS)
2

Other

OtherProceedings of the 13th Annual International Geoscience and Remote Sensing Symposium
CityTokyo, Jpn
Period93/8/1893/8/21

ASJC Scopus subject areas

  • コンピュータ サイエンスの応用
  • 地球惑星科学(全般)

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