| 支持向量机的北京城市热岛模拟:热岛强度空间格局曲面模拟及其应用 |
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| 引用本文： | 占文凤,陈云浩,周纪,李京.支持向量机的北京城市热岛模拟:热岛强度空间格局曲面模拟及其应用[J].测绘学报,2011,40(1):96-103. |
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| 作者姓名： | 占文凤 陈云浩 周纪 李京 |
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| 作者单位： | 北京师范大学地表过程与资源生态国家重点实验室;电子科技大学地表空间信息技术研究所;遥感科学国家重点实验室; |
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| 基金项目： | 国家自然科学基金(40771136,40701114); 北京市优秀人才培养资助项目(20081D0503100254); 北京师范大学自主科研基金(2009SAP-1); 遥感科学国家重点实验室开放基金(OFSLRSS201003) |
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| 摘 要： | 将支持向量机(SVM)曲面拟合算法引入城市热岛强度曲面模拟研究,以MODIS的地表温度产品(LST)数据为例,对2006～2008年北京地区城市热岛强度进行支持向量机(SVM)曲面拟合.敏感性分析和精度评价表明该算法精度较高,能够用来表征城市热岛的空间格局特征.应用结果表明,凭借该算法可对地表城市热岛制图.在年内和年际...
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| 关 键 词： | 城市地表 热红外遥感 城市热岛 支持向量机 曲面拟合 |
| 收稿时间： | 2009-12-28 |
| 修稿时间： | 2010-04-13 |
Spatial Simulation of Urban Heat Island Intensity Based on the Support Vector Machine Technique: A Case Study in Beijing |
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| ZHAN Wenfeng,CHEN Yunhao,ZHOU Ji,LI Jing.Spatial Simulation of Urban Heat Island Intensity Based on the Support Vector Machine Technique: A Case Study in Beijing[J].Acta Geodaetica et Cartographica Sinica,2011,40(1):96-103. |
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| Authors: | ZHAN Wenfeng CHEN Yunhao ZHOU Ji LI Jing |
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| Institution: | ZHAN Wenfeng1,CHEN Yunhao1,ZHOU Ji2,3,LI Jing11.State Key Laboratory of Earth Surface Processes and Resource Ecology,Beijing Normal University,Beijing 100875,China,2.Institute of Geo-Spatial Information Technology,University of Electronic Science and Technology of China,Chengdu 610054,3.State Key Laboratory for Remote Sensing Science,Beijing 100101 |
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| Abstract: | The surface fitting algorithm based on the support vector machine(SVM) technique was introduced.With the LST(land surface temperature) products from MODIS and after elimination of the data covered by clouds,757 images(274 and 483 ones for day and night,respectively) in Beijing metropolitan area from the year 2006 to 2008 were fitted one by one using the SVM technique.The sensitivity analysis and accuracy assessment both indicate that this algorithm is of high accuracy and capable to be used in depicting the... |
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| Keywords: | urban areas thermal remote sensing urban heat island support vector machine surface fitting |
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