基于遥感数据的非均匀性陆面温度反演方法

Method for retrieving temperature on non-uniformity land surface based on remote sensing data

针对在非均匀地表情况下利用遥感数据进行陆面温度的反演,提出了利用二次通道遥感数据反演陆面温度的精度比利用一次通道数据有所提高,并在论证的基础上,提出了两通道遥感数据陆面温度的反演算法。依据此算法,针对MODIS遥感数据每天四次更新(两颗星)的特点,利用两个红外通道的两个不同时刻的遥感数据,在实验区进行了陆地表面温度的反演实验,取得了与实际情况几乎一致的结果。在非均匀地表情况下,实现了利用遥感技术大面积、快速提取陆面温度的有效反演。

To improve the retrieval precision of land surface temperature, in accordance with the characteristic of MODIS remote sensing data four times transit in a day （two stars）, two infrared passways in the remote sensing data at two different moments were utilized, the new algorithm of retrieval by two passways was proposed, the feasible method that the surface temperature of non-uniformity land by remote sensing retrieval was found, and the experiment of retrieval in the test area was performed, the temperature result of land surface by remote sensing retrieval was accord with actual conditions. A precise and efficient way for retrieving temperature on non-uniformity land surface based on remote sensing was provided