| 主动微波遥感黄河上游玛曲地区夏季土壤水分 |
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| 引用本文： | 田辉,文军,史小康,王欣,刘蓉,张静辉,吕少宁.主动微波遥感黄河上游玛曲地区夏季土壤水分[J].水科学进展,2011,22(1):59-66. |
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| 作者姓名： | 田辉 文军 史小康 王欣 刘蓉 张静辉 吕少宁 |
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| 作者单位： | 1.中国科学院寒区旱区陆面过程与气候变化重点实验室, 甘肃, 兰州, 730000; |
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| 基金项目： | 中国科学院寒区旱区环境与工程研究所青年基金资助项目(0984941001); 中国科学院知识创新工程重要方向资助项目(KZCX2-YW-328)~~ |
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| 摘 要： | 利用ENVISAT-1/ASAR的VV极化主动微波资料,基于裸土表层微波后向散射GOM物理模型,并利用"水-云"模型处理植被层对土壤表层微波后向散射的影响,遥感估算了夏季黄河上游玛曲地区土壤水分空间分布.通过地面观测网的同步观测资料验证,卫星遥感的土壤体积水分含量和地面测值间的均方根误差RMSE<0.02 m3/m3,...
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| 关 键 词： | 主动微波 玛曲地区 夏季 土壤水分 |
| 收稿时间： | 2010-03-15 |
Estimation of soil moisture in summer by active microwave remote sensing for the Maqu area at the upper reaches of the Yellow River |
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| TIAN Hui,WEN Jun,SHI Xiao-kang,WANG Xin,LIU Rong,ZHANG Jing-hui,L Shao-ning.Estimation of soil moisture in summer by active microwave remote sensing for the Maqu area at the upper reaches of the Yellow River[J].Advances in Water Science,2011,22(1):59-66. |
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| Authors: | TIAN Hui WEN Jun SHI Xiao-kang WANG Xin LIU Rong ZHANG Jing-hui L Shao-ning |
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| Affiliation: | 1.Key Laboratory of Land Surface Process and Climate Change in Cold and Arid Regions, Chinese Academy of Sciences, Lanzhou 730000, China;2.College of Atmospheric Sciences, Lanzhou University, Lanzhou 730000, China |
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| Abstract: | The estimation of soil moisture in summer of 2009 is carried out using the ENVISAT-1/ASAR VV polarization data for the Maqu area at the upper reaches of the Yellow River.The geometrical optics model(GOM) is used to compute backscattering coefficients.The effect of surface short grasses on the estimation can be eliminated from the total microwave backscatters using a semi-empirical water-cloud model.The latter is calibrated using measurements collected synchronously from the regional soil moisture network.Th... |
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| Keywords: | active microwave Maqu area summer soil moisture |
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