中文摘要：

根据在一个低温度范围的普朗克常数功能的简化，这篇论文修订实际裂口窗户算法并且为在中间纬度的区域基于 MODIS 数据检索雪地面温度(T ) 介绍一个方法。在金海·莱克区域的这个方法的申请表明它为 T _s 。相关分析的结果显示在 T _s 并且高度。由分析在哪个土地覆盖是相对同质的三个典型区域，这篇论文讨论在 T _s 并且规范的差别雪索引(NDSI ) 然后礼品一个新概念说出“ NDSI-Ts 空间”。

英文摘要：

On the basis of simplification of the Planck function in a low temperature range, this paper revises the practical split-window algorithm and presents a method for retrieving snow surface temperature （Ts） based on MODIS data in the middle-latitude region. The application of this method in Qinghai Lake region reveals that it is feasible for the retrieval of Ts. Results of correlation analysis indicate that there was strong negative relationship between Ts and altitude. By analyzing three typical areas in which land cover was relatively homogenous, this paper discusses the relationship between Ts and normalized difference snow index （NDSI） and then presents a new concept named ＂NDSI-Ts space＂.