Depth inversion in coastal water based on SAR image of waves

• 作 者: 范开国 黄韦艮 贺明霞 傅斌 张彪 陈小燕
• 机 构: State Key Laboratory of Satellite Ocean Environment Dynamics,Second Institute of Oceanography,Key La
• 出 处: Chinese Journal of Oceanology and Limnology
• 发表日期: 2008年04期
• 关键词: coastal ocean depths Fujian shallow retrieve shore inversion deviation consuming

Wave-number spectrum technique is proposed to retrieve coastal water depths by means of Synthetic Aperture Radar (SAR) image of waves.Based on the general dispersion relation of ocean waves the wavelength changes of a surface wave over varying water depths can be derived from SAR. Approaching the analysis of SAR images of waves and using the general dispersion relation of ocean waves,this indirect technique of remote sensing bathymetry has been applied to a coastal region of Xiapu in Fujian Province,China.Results show that this technique is suitable for the coastal waters especially for the near-shore regions with variable water depths.

Wave-number spectrum technique is proposed to retrieve coastal water depths by means of Synthetic Aperture Radar (SAR) image of waves.Based on the general dispersion relation of ocean waves the wavelength changes of a surface wave over varying water depths can be derived from SAR . Approaching the analysis of SAR images of waves and using the general dispersion relation of ocean waves, this indirect technique of remote sensing bathymetry has been applied to a coastal region of Xiapu in Fujian Province, China. Results show that this technique is suitable for the coastal waters especially for the near-shore regions with variable water depths.