| 天宫一号数据地表温度反演及其在城市热岛效应中的应用 |
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| 引用本文： | 历华,杜永明,柳钦火,徐大琦,曹彪,蒋金雄,王合顺.天宫一号数据地表温度反演及其在城市热岛效应中的应用[J].遥感学报,2014,18(Z1):133-143. |
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| 作者姓名： | 历华 杜永明 柳钦火 徐大琦 曹彪 蒋金雄 王合顺 |
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| 作者单位： | 中国科学院遥感与数字地球研究所 遥感科学国家重点实验室, 北京 100101;中国科学院遥感与数字地球研究所 遥感科学国家重点实验室, 北京 100101;中国科学院遥感与数字地球研究所 遥感科学国家重点实验室, 北京 100101;中国资源卫星应用中心, 北京 100094;中国科学院遥感与数字地球研究所 遥感科学国家重点实验室, 北京 100101;中国科学院遥感与数字地球研究所 遥感科学国家重点实验室, 北京 100101;中国科学院遥感与数字地球研究所 遥感科学国家重点实验室, 北京 100101 |
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| 基金项目： | 国家自然科学基金(编号:41101325);国家高技术研究发展计划(863计划)(编号:2012AA12A304);载人航天工程天宫一号民用试应用项目 |
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| 摘 要： | 针对天宫一号高光谱成像仪红外波段数据提出了一个单通道地表温度反演算法,算法的输入参数为大气水汽含量和地表发射率.利用模拟数据和黑河流域生态—水文过程综合遥感观测联合试验的地面实测数据对算法进行了精度评价,结果表明算法的均方根误差为2.72 K,能够满足大多数应用研究的需求.以北京市二环以内为研究区域,采用4个时相的天宫一号高光谱红外波段数据进行了城市热岛效应研究,结果表明天宫一号高光谱红外波段数据适合用来进行街区尺度的城市热岛效应研究,具有很大的应用潜力.
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| 关 键 词： | 天宫一号 地表温度 地表发射率 城市热岛效应 街区尺度 |
| 收稿时间： | 2014/1/10 0:00:00 |
Land surface temperature retrieval from Tiangong-1 data and its applications in urban heat island effect |
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| LI Hu,DU Yongming,LIU Qinhuo,XU Daqi,CAO Biao,JIANG Jinxiong and WANG Heshun.Land surface temperature retrieval from Tiangong-1 data and its applications in urban heat island effect[J].Journal of Remote Sensing,2014,18(Z1):133-143. |
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| Authors: | LI Hu DU Yongming LIU Qinhuo XU Daqi CAO Biao JIANG Jinxiong and WANG Heshun |
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| Institution: | StateKey Laboratory of Remote Sensing Science, Institute of Remote Sensing and Digital Earth, Chinese Academy of Sciences, Beijing 100101, China;StateKey Laboratory of Remote Sensing Science, Institute of Remote Sensing and Digital Earth, Chinese Academy of Sciences, Beijing 100101, China;StateKey Laboratory of Remote Sensing Science, Institute of Remote Sensing and Digital Earth, Chinese Academy of Sciences, Beijing 100101, China;China Center for Resources Satellite Data and Application, Beijing 100094, China;StateKey Laboratory of Remote Sensing Science, Institute of Remote Sensing and Digital Earth, Chinese Academy of Sciences, Beijing 100101, China;StateKey Laboratory of Remote Sensing Science, Institute of Remote Sensing and Digital Earth, Chinese Academy of Sciences, Beijing 100101, China;StateKey Laboratory of Remote Sensing Science, Institute of Remote Sensing and Digital Earth, Chinese Academy of Sciences, Beijing 100101, China |
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| Abstract: | We proposed a single-channel algorithm for land surface temperature retrieval from thermal infrared data of Tiangong-1 hyperspectral imager, the inputs of the algorithm were atmospheric water vapor content and land surface emissivity. The algorithm was evaluated by MODTRAN simulation data and ground measurements from the Heihe Watershed Allied Telemetry Experimental Research (HiWATER). The results indicated that the proposed algorithm achieved a reasonable accuracy, with a Root Mean Square Error (RMSE) of 2.72 K, which can satisfy the needs of most applications. Four Tiangong-1 thermal infrared images of Beijing city were used for analyzing the urban heat island effect, and the results indicate that Tiangong-1 thermal infrared data are suitable for the study of urban heat island effect at district level and have great potential for future applications. |
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| Keywords: | Tiangong-1 land surface temperature land surface emissivity urban heat island effect district scale |
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