用辐射传输方程从MODIS数据中反演地表温度的方法

Retrieving land surface temperature from MODIS data by using radiance transfer equation

介绍了辐射传输方程反演地表温度理论和传统参数的获取.针对MODIS波段设置特点,从MODIS的某些波段来反演大气参数,从而突破传统参数获取的局限性,提高了辐射传输方法在地表温度反演中的实用性.最后用环渤海地区的MODIS影像对该地区的地表温度进行了反演,并对MODIS的第31,32波段反演结果做了对比分析.

We introduced in this paper the theory of radiance transfer and of how to get the key parameter transmittance. According to the character of the MODIS, we derived the water content from the image and computed the transmittance of 31 and 32 bands by building the relationship between the water content and the transmittance. Finally we used the radiance transfer equation to retrieve the land surface temperature of Huanbohai region, and analyzed the result of the MODIS 31 and 32 to retrieve LST.