Three-Dimensional Ray Simulation of Sound Propagation in Ocean with a Geostrophic Current.

DOI Web Site Web Site Web Site 被引用文献3件 参考文献7件
  • Tsuchiya Takenobu
    Department of Electrical Engineering, Faculty of Engineering, Kanagawa University, 3–27–1 Rokkakubashi, Yokohama 221, Japan
  • Ohtsuka Eiji
    Department of Electrical Engineering, Faculty of Engineering, Kanagawa University, 3–27–1 Rokkakubashi, Yokohama 221, Japan
  • Fujii Taro
    Department of Electrical Engineering, Faculty of Engineering, Kanagawa University, 3–27–1 Rokkakubashi, Yokohama 221, Japan
  • Endoh Nobuyuki
    Department of Electrical Engineering, Faculty of Engineering, Kanagawa University, 3–27–1 Rokkakubashi, Yokohama 221, Japan

この論文をさがす

抄録

Acoustical ray theory is used to analyze the three-dimensional (3-D) transmission characteristics of the propagation of sound in the Pacific Ocean. For the computer simulation, it is assumed that there is a temperature gradient caused by the warm and cold water mass. The temperature gradient also generates a non-acceleration current or the geostrophic current. The maximum flow speed of the current varies from 0 to 1.35 m/s in the area of study of 100 km square. Sound pulses projected from the source on the sound fixing and ranging (SOFAR) axis reach the cylindrical receiving plane with a curved locus, because of the influence of both temperature gradient and current. The propagation path and propagation time are more affected than shown by the estimation results by two-dimensional (2-D) simulation.

収録刊行物

被引用文献 (3)*注記

もっと見る

参考文献 (7)*注記

もっと見る

キーワード

詳細情報 詳細情報について

問題の指摘

ページトップへ