Detection of global water storage variation using GRACE
文献类型：期刊论文
| 作者 | Zhou Xu-Hua; Wu Bin ; Peng Bi-Bo; Xsu Hou-Ze
|
| 刊名 | CHINESE JOURNAL OF GEOPHYSICS-CHINESE EDITION
 |
| 出版日期 | 2006-11-01 |
| 卷号 | 49期号:6页码:1644-1650 |
| 关键词 | GRACE time-variable gravity field global water storage variation |
| 英文摘要 | Global water storage variations on the land and in the ocean are recovered by using GRACE monthly time-variable gravity fields, and these results are compared with land hydrological data, satellite altimeter data and oceanic model solutions. Comparing the gravity change at SOURE station calculated by land water storage variation with the result from GRACE gravity field coefficients truncated to degree and order 15, we find that they are close to one another with an evident annually varying term. In the Amazon drainage basin, for a 106 in smoothing radius and GRACE gravity field coefficients truncated to degree and order 15, the annual amplitude of average water storage variation thickness is about 15.6 x 10(-2) m, smaller than 23.7 x 10(-2) in for a 4 x 10(5) M smoothing radius. When we study the water storage variation in the Yangtse drainage basin, we expand the hydrological data in spherical harmonic coefficients, and dispose them of truncation and smoothness as same as GRACE data. The result indicates that the average thickness of water storage variation measured from GRACE agrees well with the hydrological data solution. For the range of latitudes -66 to 66 degrees in the ocean, the seawater mass variation recovered from GRACE is in good agreement with the result from satellite altimeter combined with the oceanic model, but for the 2 degrees x 2 degrees grid, there exist differences in some grid regions, and the largest is over 0.2 m, the RMS is 3.8 x 10(-2) m. So the GRACE satellite time-variable gravity field can only determine water storage variation over thousands kilometers or more with high accuracy presently. |
| WOS标题词 | Science & Technology ; Physical Sciences |
| 类目[WOS] | Geochemistry & Geophysics |
| 研究领域[WOS] | Geochemistry & Geophysics |
| 收录类别 | SCI |
| 语种 | 英语 |
| WOS记录号 | WOS:000242388600010 |
| 源URL | [http://119.78.226.72/handle/331011/19417]  |
| 专题 | 上海天文台_天文地球动力学研究中心 |
| 作者单位 | 1.Chinese Acad Sci, Inst Geodesy & Geophys, Key Lab Dynam Geodesy, Wuhan 430077, Peoples R China 2.Chinese Acad Sci, Shanghai Astron Observ, Shanghai 200030, Peoples R China |
| 推荐引用方式 GB/T 7714 | Zhou Xu-Hua,Wu Bin,Peng Bi-Bo,et al. Detection of global water storage variation using GRACE[J]. CHINESE JOURNAL OF GEOPHYSICS-CHINESE EDITION,2006,49(6):1644-1650. |
| APA | Zhou Xu-Hua,Wu Bin,Peng Bi-Bo,&Xsu Hou-Ze.(2006).Detection of global water storage variation using GRACE.CHINESE JOURNAL OF GEOPHYSICS-CHINESE EDITION,49(6),1644-1650. |
| MLA | Zhou Xu-Hua,et al."Detection of global water storage variation using GRACE".CHINESE JOURNAL OF GEOPHYSICS-CHINESE EDITION 49.6(2006):1644-1650. |
入库方式： OAI收割
来源：上海天文台
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