| 卫星重力捕捉龙滩水库储水量变化 |
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| 引用本文： | 詹金刚,王勇.卫星重力捕捉龙滩水库储水量变化[J].地球物理学报,2011,54(5):1187-1192. |
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| 作者姓名： | 詹金刚 王勇 |
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| 作者单位： | 1. 中国科学院测量与地球物理研究所动力大地测量学重点实验室,武汉 430077;
2. 中国科学院研究生院,北京 100049 |
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| 基金项目： | 国家自然科学基金，中国科学院知识创新工程重要方向项目 |
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| 摘 要： | 利用近7年的Gravity Recovery and climate Experiment(GRACE)重力卫星资料,采用改进的滑动窗去相关滤波和扇形滤波技术计算了红水河上游区域的重力变化,结果显示红水河上游区域重力场有明显的上升趋势,利用Global Land Data Assimilation Systems(GL...
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| 关 键 词： | 卫星重力 重力场变化 红水河上游地区 龙滩水库 |
| 收稿时间： | 2010-08-16 |
Detect water storage variation of Longtan Reservoir with GRACE data |
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| ZHAN Jin-Gang,WANG Yong.Detect water storage variation of Longtan Reservoir with GRACE data[J].Chinese Journal of Geophysics,2011,54(5):1187-1192. |
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| Authors: | ZHAN Jin-Gang WANG Yong |
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| Institution: | 1. Key Laboratory of Dynamic Geodesy, Institute of Geodesy and Geophysics, Chinese Academy of Sciences, Wuhan 430077,China;
2. Graduate University, Chinese Academy of Sciences, Beijing 100049, China |
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| Abstract: | With the help of nearly seven years' Gravity Recovery and Climate Experiment(GRACE) gravity satelliate data,we studied the gravity change of Hongshui river upstream area, which revealed that the gravity has an obvious rise trend. We also calculated the effect of soil moisture on gravity field using the Global Land Data Assimilation Systems (GLDAS) soil moisture model. The result showed that the effect of soil moisture is characterized by seasonal change,and it does not contribute greatly to the gravity rise trend in this area. The residual gravity change shows that there is a 2.17 μGal uplift before and after September 2006. The data and simulation results show that this gravity uplift is related to the water storage reservoirs of the Longtan hydropower station. This result shows that GRACE satellite can not only show the large-scale information of seasonal changes, but also provide the near real-time data for monitoring the variations of the water-level in large reservoirs. |
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| Keywords: | Satellite gravity Gravity change Upstream of Hongshui river Longtan reservoir |
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