ドップラーレーダーによる波浪観測-I : 石狩湾と若狭湾での観測

概要

論文の詳細を見る
The doppler radar observation was made to examine the relationship between ocean waves and radar sea echo signals and to obtain the information of ocean waves from those sea echo signals in Ishikari and Wakasa Bays in winters of 1991-1992 and 1997-1998, respectively. The doppler wave direction is defined here as a direction in which the maximum doppler shift of sea echo signals occurs, and the doppler wave speed is also done as a doppler speed on that doppler wave direction. It was found out that the doppler wave direction and speed were not related with the direction and speed of winds and currents. The doppler wave direction agreed with the observed wave direction within two points in the 16-point direction system. The doppler wave speed was proportional well to the phase speed estimated from the observed wave period with the 1/5 to 1/4 slope. It is concluded that the doppler shift of the sea echo signals is mainly caused by the wave propagation rather than winds and currents.
社団法人日本航海学会の論文
2001-09-25