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利用SAR图像计算内波深度和振幅的可行性研究
THE FEASIBILITY OF APPLYING SAR IMAGERY TO THE ESTIMATION OF WAVE DEPTH AND AMPLITUDE
【摘要】 根据星载合成孔径雷达(SAR)内波成像机理,建立了包括KdV方程、作用量谱平衡方程和Bragg散射模型在内的内波深度和振幅探测模型,更为严谨地推导出用SAR图像计算内波深度的方法,并首次推导出内波振幅的计算方法。利用该方法对台湾东北部海域的两幅ERS-1SAR内波图像进行了实例研究,结果表明,该方法是合理且可行的。
【Abstract】 A model consisting of the KdV Equation, Action Balance Equation and Bragg Scattering Model was established based on synthetic aperture radar (SAR) imaging mechanism for internal waves to retrieve internal wave depth and amplitude. Methods for internal wave depth and amplitude calculation were derived from this model. Imagery from ERS-1 SAR was used as case studies in seas around China. Comparison with in situ measurements shows that the methods are reasonable.
【基金】 本研究由国家自然科学基金(40206023);国家863计划(2002AA639360和2002AA633120)资助。
- 【文献出处】 国土资源遥感 ,Remote Sensing For Land & Resources , 编辑部邮箱 ,2003年01期
- 【分类号】TP79
- 【被引频次】21
- 【下载频次】302