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遥感技术与应用  2011, Vol. 26 Issue (6): 719-727    DOI: 10.11873/j.issn.1004-0323.2011.6.719
模型与反演     
利用GRACE重力卫星监测黑河流域水储量变化
曹艳萍,南卓铜
(中国科学院寒区旱区环境与工程研究所,甘肃 兰州 730000)
Monitoring Water Storage Variations in the Heihe River Basin by the GRACE Gravity Satellite
Cao Yanping,Nan Zhuotong
(Cold and Arid Regions Environmental and Engineering Research Institute,Chinese Academy of Sciences,Lanzhou 730000,China)
 全文: PDF(3466 KB)  
摘要:

利用CSR数据中心公布的GRACE重力测量卫星最新数据RL04,经去相关和Fan滤波处理去除误差,提高结果精度,最终反演得到黑河流域2002~2008年水储量变化趋势,并对其进行时序特征和空间分布特征分析。结果表明:黑河流域水储量有明显的季节变化,水储量增加的最大幅度出现在夏季,减少的最大幅度出现在冬季;总体上水储量呈逐年上升趋势,水储量极值与降水极值具有较明显的一致性;水储量在空间上的分布受流域地形影响显著,上、中游水储量呈增加趋势,下游水储量部分地区减少,部分地区增加。

关键词: GRACE水储量变化降水黑河流域    
Abstract:

Using the latest data of GRACE gravity satellites—RL04,published by the CSR,we got the trend of water storage in the Heihe River Basin(HRB) through 2002~2008.In order to improve the inversion accuracy,errors were removed from the data by decorrelation and Fan Filter.Then we analyzed temporal and spatial distribution of water storage variations in the HRB.Results revealed that water storage of HRB features with obviously seasonal characteristic.The amplitude peak of increasing is in summer and declining in winter.Inter\|annual analysis showed HRB water storage appears an increasing trend,which is consistent with that of precipitation variations in HRB.Spatially,water storage is greatly influenced by the terrain in HRB,resulting in an increasing trend in the upstream and midstream areas,while a decreasing trend in a part of the downstream area,increasing in other parts.

Key words: GRACE    Water storage variation    Precipitation    The Heihe river basin
收稿日期: 2011-07-25      http://westdc.westgis.ac.cn/data/f1aaacad-9f42-474e-8aa4-d37f37d6482f 出版日期: 2012-01-10
:  P 332  
基金资助:

国家863计划项目(2008AA12Z205),中国科学院重要方向项目(KZCX2-YW-Q10-1),国家973计划项目“北半球冰冻圈变化及其对气候环境的影响与适应对策”(2010CB951403)资助。

通讯作者: 南卓铜(1977-),男,浙江乐清人,研究员,主要从事地理信息系统应用、水文建模、数据中心共享等方面的研究。     E-mail: nztong@lzb.ac.cn.
作者简介: 曹艳萍(1986-),女,河南新乡人,硕士研究生,主要从事GRACE重力卫星的应用研究。Email:0310cyp@163.com。
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引用本文:

曹艳萍,南卓铜 . 利用GRACE重力卫星监测黑河流域水储量变化[J]. 遥感技术与应用, 2011, 26(6): 719-727.

Cao Yanping,Nan Zhuotong. Monitoring Water Storage Variations in the Heihe River Basin by the GRACE Gravity Satellite. Remote Sensing Technology and Application, 2011, 26(6): 719-727.

链接本文:

http://www.rsta.ac.cn/CN/10.11873/j.issn.1004-0323.2011.6.719        http://www.rsta.ac.cn/CN/Y2011/V26/I6/719

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