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首页> 外文期刊>Journal of Geophysical Research. Biogeosciences >Ozone profile retrieval from backscattered ultraviolet radiances: The inverse problem solved by regularization
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Ozone profile retrieval from backscattered ultraviolet radiances: The inverse problem solved by regularization

机译：从反向散射的紫外线辐射中检索臭氧剖面：通过正则化解决的反问题

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摘要

A new algorithm is presented for the retrieval of ozone profiles from backscattered ultraviolet radiation, as measured by the Global Ozone Monitoring Experiment (GOME). It is the first algorithm for ozone profile retrieval from this type of measurement that does not depend on climatological information about the ozone profile. For the inversion, Phillips-Tikhonov regularization is used in combination with the L curve criterion for choosing the regularization parameter. This inversion technique allows one to retrieve a maximal possible information amount from the measurement, while at the same time the influence of the measurement noise on the retrieved profile is minimized. In this paper, we show the suitability of this method for ozone profile retrieval from GOME radiance measurements. The average vertical resolution of the retrieved profiles varies between 8 and 10 km. The GOME ozone profiles are validated with 163 ozonesonde profiles spread over seven stations. The root-mean-square differences between the sonde and GOME ozone profiles are generally 5-10% in the stratosphere. Differences in the mean profile are in the range 1-7% in the stratosphere. [References: 24]
机译：提出了一种新算法，用于从反向散射紫外线辐射中检索臭氧剖面，这是通过全球臭氧监测实验（GOME）进行测量的。这是从这种类型的测量中检索臭氧分布图的第一个算法，它不依赖于有关臭氧分布图的气候信息。对于反演，将Phillips-Tikhonov正则化与L曲线准则结合使用以选择正则化参数。这种反演技术可以使人们从测量中获取最大可能的信息量，同时将测量噪声对所获取轮廓的影响降至最低。在本文中，我们展示了该方法适用于从GOME辐射度测量中检索臭氧剖面的方法。检索到的剖面的平均垂直分辨率在8至10 km之间变化。用分布在七个气象站的163个臭氧探空仪剖面图验证了国美臭氧剖面图。在平流层中，探空仪和国美臭氧剖面之间的均方根差通常为5-10％。在平流层中，平均剖面的差异在1-7％的范围内。 [参考：24]

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