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A general purpose exact Rayleigh scattering look-up table for ocean color remote sensing
  • 期刊名称:Acta Oceanologica Sinica
  • 时间:0
  • 页码:48-56
  • 语言:中文
  • 分类:P731.14[天文地球—海洋科学]
  • 作者机构:[1]Key Laboratory of Ocean Dynamic Processes and Satellite Oceanography of State Oceanic Administration, Hangzhou 310012, China, [2]Second Institute of Oceanography, State Oceanic Administration, Hangzhou 310012, China, [3]Shanghai Institute of Technical Physics, Chinese Academy of Sciences, Shanghai 200083, China
  • 相关基金:This work was supported by the National Natural Science Foundation of China under contract No. 40506036, the High Tech Research and Development "863" Program of China under contract No.2003AA131160-04 and the Science and Technology Plan of Zhejiang Province of China under contract Nos 2004E60054 and 2004C13027.
  • 相关项目:海洋-大气耦合矢量辐射传输及海面风场可见光偏振遥感研究
中文摘要:

散布查找搁置的海洋颜色遥感使用(LUT ) 的计算的当前的准确瑞利,它是通常为一个特殊遥感器创造了并且不能被用于另外的传感器。为实际应用,能被用于所有海洋颜色遥感器的通用瑞利 scatteringLUT 被产生。在飞机平行空气解决向量辐射传递方程的一个增加加倍方法详细被推出。与散布从 MODIS 准确 Rayleighscattering LUT 导出的发光的准确瑞利相比,与加倍 theadding 方法散布计算的瑞利的相对误差是不到 0.25% ,这被证明,它遇见海洋颜色遥感的大气的修正的要求的精确性。因此,增加加倍方法能被用来产生为海洋颜色遥感器散布 LUT 的准确瑞利。最后,散布 LUT 的通用准确瑞利用增加加倍方法被产生。根据通用 LUT ,散布发光的计算瑞利被与 MODIS , SeaWiFS 和另外的海洋颜色传感器的 LUT 作比较测试,证明相对误差都是不到0.5%,并且这通用 LUT 能被用于所有海洋颜色遥感器。

英文摘要:

The current exact Rayleigh scattering calculation of ocean color remote sensing uses the look-up table (LUT), which is usually created for a special remote sensor and cannot be applied to other sensors. For practical application, a general purpose Rayleigh scattering LUT which can be applied to all ocean color remote sensors is generated. An adding-doubling method to solve the vector radiative transfer equation in the plane-parallel atmosphere is deduced in detail. Compared with the exact Rayleigh scattering radiance derived from the MODIS exact Rayleigh scattering LUT, it is proved that the relative error of Rayleigh scattering calculation with the adding-doubling method is less than 0.25%, which meets the required accuracy of the atmospheric correction of ocean color remote sensing. Therefore, the adding-doubling method can be used to generate the exact Rayleigh scattering LUT for the ocean color remote sensors. Finally, the general purpose exact Rayleigh scattering LUT is generated using the adding-doubling method. On the basis of the general purpose LUT, the calculated Rayleigh scattering radiance is tested by comparing with the LUTs ofMODIS, SeaWiFS and the other ocean color sensors, showing that the relative errors are all less than 0.5%, and this general purpose LUT can be applied to all ocean color remote sensors.

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