| 基于Tongji-GRACE01模型的南极质量变化分析 |
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| 引用本文： | 鞠晓蕾,沈云中,陈秋杰.基于Tongji-GRACE01模型的南极质量变化分析[J].大地测量与地球动力学,2015,35(1):53-57. |
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| 作者姓名： | 鞠晓蕾 沈云中 陈秋杰 |
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| 作者单位： | 同济大学测绘与地理信息学院， 上海市四平路1239号， 200092 |
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| 摘 要： | 利用最新发布的Tongji-GRACE01月时间分辨率的时变重力场模型，采用组合滤波方法（高斯滤波+去相关滤波）滤除条带误差，分析不同GIA模型对南极质量变化的影响，并比较GIA改正后南极质量变化时间序列均方根（RMS）。2003-01～2011-08南极质量变化的速率分别为：-128.2±34.6 Gt/a（Pau-5-AUT模型）、-177.9±40.2 Gt/a（W&W-4-AUT模型）、-92.8±31.2 Gt/a（W12a模型）。
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| 关 键 词： | Tongji-GRACE01 南极 质量变化 GIA |
| 收稿时间： | 2014-06-24 |
Mass Change of the Antarctic Based on Tongji-GRACE01 Gravity Model |
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| JU Xiaolei,SHEN Yunzhong,CHEN Qiujie.Mass Change of the Antarctic Based on Tongji-GRACE01 Gravity Model[J].Journal of Geodesy and Geodynamics,2015,35(1):53-57. |
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| Authors: | JU Xiaolei SHEN Yunzhong CHEN Qiujie |
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| Institution: | College of Surveying and Geo-Informatics Engineering, Tongji University, 1239 Siping Road, Shanghai 200092, China |
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| Abstract: | We analyze the mass change of the Antarctic in three different GIA models: the new gravity time variable Tongji-GRACE01 model, and the two steps filtering methods (Gaussian filtering and de-correlation filtering). The RMS of the mass change time series are compared. From Jan. 2003 to Aug. 2011, the trends of mass changes are -128.2±34.6 Gt/a (Pau-5-AUT corrected), -177.9±40.2 Gt/a (W&W-4-AUT corrected) and -92.8±31.2 Gt/a (W12a corrected) respectively. |
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| Keywords: | Tongji-GRACE01 Antarctic mass changes GIA |
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