| 基于GRACE数据的西南陆地水储量分析 |
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| 引用本文： | 刘卫,缪元兴. 基于GRACE数据的西南陆地水储量分析[J]. 天文学报, 2011, 52(2): 145-151 |
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| 作者姓名： | 刘卫 缪元兴 |
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| 作者单位： | 1. 中国科学院国家天文台/云南天文台,昆明,650011,中国科学院研究生院,北京,100049
2. 中国科学院国家天文台/云南天文台,昆明,650011 |
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| 摘 要： | 利用地球重力卫星GRACE(Gravity Recovey and Climate Experiment)2005年1月～2010年4月期间64个月的数据,对我国西南地区陆地水储量变化进行了反演.结果表明,选取适当的高斯半径(R=600 km)和所采用数据的平均引力场作为背景引力场,则基于GRACE数据反演的西南陆地水...
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| 关 键 词： | 天体测量学,天体力学,方法 数值 |
The Analysis of the Southwestern Landwater Storage Based on GRACE Data |
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| LIU Wei,MIAO Yuan-xing. The Analysis of the Southwestern Landwater Storage Based on GRACE Data[J]. Acta Astronomica Sinica, 2011, 52(2): 145-151 |
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| Authors: | LIU Wei MIAO Yuan-xing |
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| Affiliation: | LIU Wei~(1,2)MIAO Yuan-xing~1 (1 National Astronomical Observatories/Yunnan Astronomical Observatory,Chinese Academy of Sciences,Kunming 650011) (2 Graduate University of Chinese Academy of Sciences,Beijing 100049) |
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| Abstract: | Based on the 64-month data of GRACE(Gravity Recovery and Climate Experiment) from January 2005 to April 2010,the inversion of the landwater storage in the southwest China is carried out in this paper.GRACE is a near polar orbiting satellite,so the subsatellite points become dense with increasing latitude,and thus the region with a higher latitude has a higher spatial resolution.By repeated calculations and comparison, it is found that with appropriate Gaussian radius(R=600 km)in the southwest China and taki... |
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| Keywords: | astrometry celestial mechanics methods numerical |
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