| 青藏高原那曲地区MODIS 地表温度估算 |
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| 引用本文： | 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(6):1289-1309. |
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| 作者姓名： | 王宾宾 马耀明 马伟强 |
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| 作者单位： | 中国科学院青藏高原研究所,北京 100085;中国科学院研究生院,北京 100049;中国科学院青藏高原环境变化与地表过程重点实验室,北京 100085;中国科学院青藏高原研究所,北京 100085;中国科学院青藏高原环境变化与地表过程重点实验室,北京 100085;中国科学院研究生院,北京 100049;中国科学院青藏高原环境变化与地表过程重点实验室,北京 100085;中国科学院寒区旱区环境与工程研究所,甘肃兰州 730000 |
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| 基金项目： | 中欧合作“龙计划”项目;全球变化国家重大科学研究计划(编号: 2010CB951701) ;国家杰出青年科学基金(编号: 40825015) ;中国科学院方向性项目(编号: KZCX2-YW-QN309) |
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| 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1.435 K .
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| 关 键 词： | 青藏高原 MODIS 分裂窗口算法 云检测 地表温度 |
| 收稿时间： | 2011/10/11 0:00:00 |
| 修稿时间： | 5/8/2012 12:00:00 AM |
Estimation of land surface temperature retrieved from EOS/MODIS in Naqu area over Tibetan Plateau |
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| WANG Binbin,MA Yaoming and MA Weiqiang.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. |
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| Authors: | WANG Binbin MA Yaoming and MA Weiqiang |
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| Institution: | Institute of Tibetan Plateau Research, Chinese Academy of Sciences, Beijing 100085, China;Graduate University of Chinese Academy of Sciences, Beijing 100049, China;Key Laboratory of Tibetan Environment Changes and Land Surface Processes, Chinese Academy of Sciences, Beijing 100085, China;Institute of Tibetan Plateau Research, Chinese Academy of Sciences, Beijing 100085, China;Key Laboratory of Tibetan Environment Changes and Land Surface Processes, Chinese Academy of Sciences, Beijing 100085, China;Graduate University of Chinese Academy of Sciences, Beijing 100049, China;Key Laboratory of Tibetan Environment Changes and Land Surface Processes, Chinese Academy of Sciences, Beijing 100085, China;Cold and Arid Regions Environmental and Engineering Research Institute, Chinese Academy of Sciences, Lanzhou 730000, China |
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| Abstract: | Using split window algorithms developed by Sobrino, added a suff icient and simple cloud detection process for MODIS L1B data. Then based on land surface classif ication (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. |
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| Keywords: | Tibetan Plateau MODIS split window algorithm cloud detection land surface temperature |
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