Estimation of land surface temperature retrieved from EOS/MODIS in Naqu area over Tibetan Plateau

doi:10.11834/jrs.20121268

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Estimation of land surface temperature retrieved from EOS/MODIS in Naqu area over Tibetan Plateau
Vol. 16, Issue 6, Pages: 1289-1309(2012)
Published：2012
DOI： 10.11834/jrs.20121268
稿件说明：

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[1]王宾宾,马耀明,马伟强.青藏高原那曲地区MODIS地表温度估算[J].遥感学报,2012,16(06):1289-1309. DOI： 10.11834/jrs.20121268.

Estimation of land surface temperature retrieved from EOS/MODIS in Naqu area over Tibetan Plateau[J]. Journal of Remote Sensing, 2012, 16(6): 1289-1309. DOI： 10.11834/jrs.20121268.

摘要

地表温度是区域和全球尺度陆面过程研究中的一个关键参数

利用遥感卫星资料反演得到的地表温度数据在气象、水文和生态领域研究中有重要作用。本文基于改进后的针对MODIS数据的分裂窗口算法

对MODIS L1B卫星数据进行实用而简便的云检测处理

并根据青藏高原陆地、水体和冰雪等常见下垫面状况的遥感影像分类结果

反演得到了2007-01-03、04-18、06-12和10-02四日的无云下垫面地表温度。最后

将Sobrino结果在青藏高原那曲地区与MODIS日地表温度产品及CAMP/Tibet观测站地表温度数据进行了对比验证分析。结果表明

该方法得到的地表温度结果与MODIS数据产品具有较好的一致性

并且地表温度结果与地面观测数据（去除可疑点后）的平均误差仅为1.435K。

Abstract

Using split window algorithms developed by Sobrino

added a sufficient and simple cloud detection process for MODIS L1B data.Then based on land surface classification（land

water

snow & ice）

retrieved four land surface temperature images for clear sky in Naqu area over Tibetan Plateau in January

April

June and October in 2007

respectively.After that the derived LST was compared with the MODIS daily land surface temperature product and in-situ data from the Coordinated Enhanced Observing Period（CEOP） Asia-Australia Monsoon Project（CAMP） on Tibetan Plateau（CAMP/Tibet）.The results showed that the LST derived from the improved Sobrino method was in good accordance with the MODIS product and the average difference between LST and in-situ measurements was only 1.435 K.