基于Landsat 5 TM数据反演地表温度

大气与环境光学学报 ›› 2010, Vol. 5 ›› Issue (4): 293-298.

基于Landsat 5 TM数据反演地表温度

王艳梅，杨世植，王震，崔生成

（中国科学院安徽光学精密机械研究所中国科学院通用光学定标与表征技术重点实验室，安徽合肥 230031）

收稿日期:2010-02-03 修回日期:2010-03-30 出版日期:2010-07-28 发布日期:2010-07-21
通讯作者: 王艳梅（1983-），女，安徽萧县人，研究生，主要从事热红外遥感反演地表温度研究。 E-mail:wymstar@163.com
作者简介:王艳梅（1983-），女，安徽萧县人，研究生，主要从事热红外遥感反演地表温度研究。

Retrieval Land Surface Temperature Based on Landsat 5 TM

WANG Yan-mei，YANG Shi-zhi ，WANG Zhen，CUI Sheng-cheng

(Key Laboratory of Optical Calibration and Characterization, Anhui Institute of Optics and Fine Mechanics, Chinese Academy of Sciences，Hefei 230031,China)

Received:2010-02-03 Revised:2010-03-30 Published:2010-07-28 Online:2010-07-21

摘要/Abstract

摘要：

利用Landsat 5第6波段数据，根据单窗算法反演合肥市地表温度。针对在夏季大气中水汽含量比较大的问题，利用Modtran中纬度夏季模式模拟出在大气水汽含量位于0.4 -5.4 区间时，大气透过率与大气水汽含量之间的关系。利用模拟出的结果及MODIS水汽产品对TM图像进行大气校正并反演地表温度，选择均匀区的反演温度值与MODIS温度产品比较，比较结果显示植被均匀区的温差在1K以内，城镇建筑均匀区的温差在1.1K以内，故可用此方法对TM图像进行大气校正进而反演地表温度。

关键词: 单窗算法, 地表辐射率, 大气平均作用温度, 大气透过率, Modtran

Abstract:

The thermal band 6 data of Landsat 5 is used to retrieve land surface temperature of Hefei with mono-window algorithm. The atmospheric water vapour content is high in the summer. In the study, Modtran is used to simulate the relationship between water vapour content and atmospheric transmittance, the water vapour content is between 0.4 and 5.4 . And then the simulation result and modis water vapor product are used to atmospheric correction and landsat surface temperature retrieval. Select uniform zone temperature and compare to modis temperature product. The comparison result shows the contrast of vegetation is less than 1K while construction is less than 1.1K. The result can be used to atmospheric correction and then retrieve land surface temperature.

Key words: mono-window algorithm, land surface emissivity, atmospheric mean temperature, atmospheric transmittance, Modtran

中图分类号:

P314

王艳梅杨世植王震崔生成. 基于Landsat 5 TM数据反演地表温度[J]. 大气与环境光学学报, 2010, 5(4): 293-298.

WANG Yan-Mei, YANG Shi-Zhi, WANG Zhen, CUI Sheng-Cheng. Retrieval Land Surface Temperature Based on Landsat 5 TM[J]. Journal of Atmospheric and Environmental Optics, 2010, 5(4): 293-298.

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