| 澜沧江及周边流域TRMM3B43数据精度检验 |
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| 引用本文： | 曾红伟,李丽娟.澜沧江及周边流域TRMM3B43数据精度检验[J].地理学报,2011,66(7):994-1004. |
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| 作者姓名： | 曾红伟 李丽娟 |
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| 作者单位： | 1. 中国科学院地理科学与资源研究所,北京100101;中国科学院研究生院,北京100049
2. 中国科学院地理科学与资源研究所,北京,100101 |
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| 基金项目： | 科技部科技基础性工作专项(2008FY110300-01); 国家科技支撑计划课题(全国主体功能区规划遥感地理信息支撑系统关键技术研究)(2008BAH31B01)~~ |
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| 摘 要： | 在地形复杂的澜沧江及周边流域,利用相关系数法、散点斜率法,以研究区内35个国家基准与基本站观测数据为“真值”对1998-2009年之间月尺度的TRMM 3B43降水数据精度进行检验,采用泰森多边形法、K-Means聚类法分析了高程与坡度对检验结果的影响,借助主成分法比较了高程与坡度对TRMM 3B43的影响程度.研究表...
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| 关 键 词： | 气象 降水 TRMM 3B43 泰森多边形 K-Means聚类 地形 澜沧江流域 |
Accuracy Validation of TRMM 3B43 Data in Lancang River Basin |
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| ZENG Hongwe,LI Lijuan.Accuracy Validation of TRMM 3B43 Data in Lancang River Basin[J].Acta Geographica Sinica,2011,66(7):994-1004. |
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| Authors: | ZENG Hongwe LI Lijuan |
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| Institution: | ZENG Hongwei 1,2,LI Lijuan 1(1.Institute of Geographic Sciences and Natural Resources Research,CAS,Beijing 100101,China,2.Graduate University of Chinese Academy of Sciences,Beijing 100049,China) |
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| Abstract: | The Lancang river basin is a typical area of lacking data with complicated terrain and climate characteristics.It is located in the upper reaches of Mekong river basin.There is great potential to carry out hydrological prediction in ungauged basins by using satellite estimate precipitation data.As a precipitation radar satellite,TRMM has been collecting plentiful fine temporal-spatial precipitation data,so it is significant to use the TRMM precipitation data to study hydrological and climatic characteristic... |
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| Keywords: | meteorology precipitation TRMM 3B43 Thiessen polygons k-means cluster terrain Lancang river basin |
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