A Study of Effect of Cloud on Net Surface Radiation with GMS-5 Data

By using the GMS-5 data and surface observations of solar radiation of Mohe county and Zhengzhou city, a regression equation is developed between satellite visual light (VIS), infrared 1(IR1), infrared 2(IR2), water vapor (IR3) channel, sun zenith and net surface radiation. The correlation coefficient is up to 0 8259. Especially, in terms of cloud condition, the results are improved when data of IR1 minus IR3 are used, which give a new method to study cloud effect on net surface radiation.

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