基于GRACE卫星时变重力场模型的黄河中游地区水储量变化研究

论文以水循环发生巨大改变的黄河中游地区作为研究对象,利用GRACE卫星时变重力场模型以及黄河中游地区的水文数据,通过水循环系统的概化、子流域划分以及Mann-Kendall非参数检验等方法,对黄河中游地区以及各个子流域水储量变化进行研究。主要结论如下：近10 a,黄河中游地区水储量以年均3.79 mm等效水深的速度增加,而引起水储量增加的主要原因是该地区径流损失量减少,年均减少量超过2.93 mm等效水深;黄河中游地区水储量的空间变化差异性较大,水储量增加最大的区域是龙门—三门峡区间,年平均增加4.59 mm等效水深,而增加量较小的是三门峡—花园口区间,年平均增加2.71 mm等效水深,水储量...

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Bibliographic Details
Published in自然资源学报 Vol. 32; no. 3; pp. 461 - 473
Main Author 李爱华 崔胜玉 王红瑞 于忱
Format Journal Article
LanguageChinese
Published 北京师范大学水科学研究院,北京,100875 2017
Subjects
GRACE时变重力场
水储量
水量平衡
黄河中游
GRACE时变重力场
water storage
水量平衡
黄河中游
GRACE time variable gravitation model
the middle of the Yellow River Basin
water balance
水储量
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ISSN1000-3037
DOI10.11849/zrzyxb.20160233

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Summary:论文以水循环发生巨大改变的黄河中游地区作为研究对象,利用GRACE卫星时变重力场模型以及黄河中游地区的水文数据,通过水循环系统的概化、子流域划分以及Mann-Kendall非参数检验等方法,对黄河中游地区以及各个子流域水储量变化进行研究。主要结论如下：近10 a,黄河中游地区水储量以年均3.79 mm等效水深的速度增加,而引起水储量增加的主要原因是该地区径流损失量减少,年均减少量超过2.93 mm等效水深;黄河中游地区水储量的空间变化差异性较大,水储量增加最大的区域是龙门—三门峡区间,年平均增加4.59 mm等效水深,而增加量较小的是三门峡—花园口区间,年平均增加2.71 mm等效水深,水储量增加居中的则是河口—龙门区间,年平均增加3.47 mm等效水深。
Bibliography:LI Ai-hua, CUI Sheng-yu, WANG Hong-rui, YU Chen （College of Water Sciences, Beijing Normal University, B eijing 100875, China）
the middle of the Yellow River Basin; water storage; GRACE time variable gravitation model; water balance
This study targets the middle reaches of the Yellow River Basin where the huge changes have been taking place in the water cycle process. By constructing GRACE satellite gravitational field model, the water storage changes in the middle reaches of the Yellow River Basin were inverted and the result was validated. The result derived from GRACE satellite and that from water balance model show the same temporal trend of water storage change, the square of the correlation coefficient being 0.82. The amount of water storage over the middle reaches of the Yellow River Basin had an increasing trend from 2003 to 2012, and the average annual increasing amount was water storage change equivalent water depth. The increase of water storage was caused by the decrease in runoff loss in the middle
ISSN:1000-3037
DOI:10.11849/zrzyxb.20160233