The Comparison of Land Surface Temperature with CLM and Split Window Retrieving Method
Received date: 2002-10-23
Revised date: 2003-01-06
Online published: 2003-07-25
Supported by
National Natural Science Foundation of China, No.90202002; National 973 Program, No.2002CB4125
In this paper, the Common Land Surface Model (CLM) and split window retrieving method were employed to compute and retrieve land surface temperature along transects, and then the spatial distribution and errors of two kinds of land surface temperatures from different ways were analyzed and compared based on the observed temperature, the applicability of two ways was decided by the comparison results. The conclusions drawn by this study are as follows: the land surface temperature simulated with CLM matches best with that from observed in distribution, but because of the impacts of different topographic types and land covers the errors of water surface temperature simulated with CLM to land surface temperature are greater (errors > 3%), the errors of cultivated land surface temperature are smaller (errors < -3%), the surface temperatures of barren land, grassland and forest match best with observed values. The land surface temperatures with split window method differ obviously from that observed. The split window method is applicable to retrieve the temperature of grassland and forest, but it has significant errors to retrieve the surface temperatures of barren land and cultivated land.
GAO Zhiqiang, LIU Jiyuan . The Comparison of Land Surface Temperature with CLM and Split Window Retrieving Method[J]. Acta Geographica Sinica, 2003 , 58(4) : 494 -502 . DOI: 10.11821/xb200304002
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