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标题：ESTIMATING CLEAR-SKY LAND SURFACE LONGWAVE RADIATION BUDGET FROM MODIS DATA
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作者：W. Wang ; S. Liang
期刊名称：ISPRS Annals of the Photogrammetry, Remote Sensing and Spatial Information Sciences
印刷版ISSN：2194-9042
电子版ISSN：2194-9050
出版年度：2007
卷号：XXXVI-7/C50
出版社：Copernicus Publications
摘要：Surface longwave radiation budget components, including surface upwelling longwave radiation (SULR), surface downwelling longwave radiation (SDLR), and surface net longwave radiation (SNLR), are important parameters in Numerical Weather Prediction (NWP) and hydrological modeling. Today, high resolution NWP and hydrological models (up to 1km) have been widely used in short range forecasting, weather hazards warning, as well as in the next generation operational NWP studies. However, no satellite SLBR products with comparable spatial resolution are available, which limits the accuracy of the high resolution model predictions. In this study, new statistical models for estimating clear sky SULR, SDLR, and SNLR from the Moderate Resolution Imaging Spectroradiometer (MODIS) data (1km spatial resolution) were developed using more than 1500 high resolution MODIS atmosphere profiles and the Moderate Resolution Transmittance Code Version 4 simulation. Land surface emissivity effect was considered explicitly by incorporating UCSB Emissivity Spectra in the simulation procedures