| 基于多源遥感数据反演地表温度的单窗算法 |
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| 引用本文： | 王倩倩,覃志豪,王斐.基于多源遥感数据反演地表温度的单窗算法[J].地理与地理信息科学,2012,28(3):24-26,62,113. |
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| 作者姓名： | 王倩倩 覃志豪 王斐 |
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| 作者单位： | 1. 南京大学国际地球系统科学研究所,江苏南京,210093
2. 南京大学国际地球系统科学研究所,江苏南京210093;中国农业科学院农业资源与农业区划研究所,北京100081 |
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| 基金项目： | 国家重点基础研究发展计划(973计划)项目，国家重点课题4 |
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| 摘 要： | 利用单窗算法反演地表温度时,一景影像通常使用一个大气透过率。大气水汽含量空间异质性会导致像元尺度上大气透过率不同,从而给地表温度反演带来误差。该文通过从研究区MODIS数据中反演出大气水汽含量,经过配准、重采样之后获得该区域像元尺度的大气透过率,利用同时相TM数据,采用单窗算法反演地表温度。结果表明:基于多源遥感数据反演地表温度的单窗算法,由于减少了大气水汽含量空间异质性带来的地表温度反演误差,能够得到更为合理的地表温度。
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| 关 键 词： | MODIS 单窗算法 大气水汽含量 大气透过率 |
Mono-window Algorithm for Retrieving Land Surface Temperature Based on Multi-source Remote Sensing Data |
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| WANG Qian-qian
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QIN Zhi-hao
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WANG Fei.Mono-window Algorithm for Retrieving Land Surface Temperature Based on Multi-source Remote Sensing Data[J].Geography and Geo-Information Science,2012,28(3):24-26,62,113. |
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| Authors: | WANG Qian-qian QIN Zhi-hao WANG Fei |
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| Institution: | 1(1.International Institute for Earth System Science,Nanjing University,Nanjing 210093;2.Institute of Agricultural Resources and Regional Planning,Chinese Academy of Agricultural Sciences,Beijing 100081,China) |
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| Abstract: | The spatial heterogeneity of atmospheric water vapor content at regional scale will bring in error when using mono-window algorithm for retrieving LST.In this paper,the water vapor content was calculated by two channel ratio method based on MODIS near infrared data,then land surface temperature was retrieved by using the thermal infrared band of Landsat TM and mono-window algorithm.The exploited approach was applied to Zhengzhou City.The results show that the combination of multi-source remote sensing data and mono-window algorithm is effective for retrieving land surface temperature and can yield a reasonable estimation of land surface temperature. |
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| Keywords: | MODIS mono-window algorithm atmospheric water vapor content atmospheric transmittance |
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