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NOAA—AVHRR图像大气影响校正方法研究及软件研制第二部分:软件研制

A Researth on the Method and Computer program of Correction of Atmospheric Effects on NOAA-AVHRR Image Part 2:Programming

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【作者】 秦益田国良

【Author】 Qin Yi;Tian Guoliang(Instiitute of remote sensing application)

【机构】 中国科学院遥感应用研究所

【摘要】 本文重点介绍平面平行大气多次散射方程的求解及Tovs资料与图像的配准等问题。对于散射方程的求解本文吸取了众多的研究成果,但由于我们已知的是大气顶的辐射,而未知的是地表反射率,因此直接利用正演方法将存在问题。为此,本文引进地面总波谱辐射与直接波谱辐射的比值作为中间变量,并提出了一种有效的解决办法。本文将重点介绍程序设计,并对一些结果进行了讨论,指出了进一步的工作。经过一年多的试运行,证明该软件运行可靠,时效较高,已达到常规运行的要求。

【Abstract】 This paper is the second part of“Correction of the effects of atmo-sphere on NOAA-AVHRR image”.In the first part,we have introduced the princi-ple and model.In this part,we will introdece the method for solving multiscatte-ring equation and the match between TOVS data and AVHRR image. About the sol-ving of multiscattering equation,we have absorbed many research result,but,becausewe have known the radiation at the top of atmosphere and the reflectance of the sur-face is unknown,so it is difficult to use the foreword calculation method.To solvethis problem,a variable of ratio between total radiance and direct radiance has beenintroduced and a efficacious method has been proposed.In chapter 3 of this paperwe will discuss the program and in chapter 4 some experiment results will be ana-lysed and some future work which may be important will be proposed.After morethan one year’s experiment,it is proved that the program is dependable and efficientand can be used routinly.

【关键词】 AVHRR大气影响校正TOVS
【Key words】 AVHRRCorrection of atmospheric effectsTOVS
【基金】 国家自然科学基金
  • 【分类号】P407
  • 【被引频次】8
  • 【下载频次】163
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