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| 引用本文： | 玄松柏,申重阳,孙少安,刘杰,李辉,刘少明.???????仯??????????????о?[J].大地测量与地球动力学,2008,28(1):36-40. |
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| 作者姓名： | 玄松柏 申重阳 孙少安 刘杰 李辉 刘少明 |
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| 作者单位： | 1. 中国地震局地震研究所,武汉,430071
2. 中国地震台网中心,北京,100036 |
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| 基金项目： | 国家公益研究专项(2004DIB3J131)，中国地震局地震研究所所长基金(IS200726009)，国家支撑计划子题(2006BAC01B02-02-05)，国家自然科学基金(40574012) |
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| 摘 要： | ?????????????????????????????????????仯?????????????????÷???????Ч???????????????????????????????????????????仯????????????????????????仯????????????????4???????????????????2003??4??7??????????????????????????????仯???????????仯????????Щ???????????
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| 关 键 词： | ???????? ????? ???仯 ???? ??? |
| 文章编号： | 1671-5942（2008）01-0036-05 |
| 收稿时间： | 2007-09-01 |
| 修稿时间： | 2007年9月1日 |
ON GENETIC ALGORITHM FOR 3D INVERSION OF UNDERGROUND DENSITY CHANGES |
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| Xuan Songbai,Shen Claongyang,Sun Slaaoan,Liu Jie,Li Hui,Liu Slaaoming.ON GENETIC ALGORITHM FOR 3D INVERSION OF UNDERGROUND DENSITY CHANGES[J].Journal of Geodesy and Geodynamics,2008,28(1):36-40. |
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| Authors: | Xuan Songbai Shen Claongyang Sun Slaaoan Liu Jie Li Hui Liu Slaaoming |
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| Institution: | 1)institute of Seismology,CEA,Wuhan 4300712)China Earthquake Network Center,CEA,Beijing 100036 |
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| Abstract: | The method for inversing density changes of underground abnormal body with genetic algorithm by use of the repeated gravity data is described. The validity and stability of this method are proved by simulating trial calculation.The density changes before and after the first water impounding of Three Gorges Reservoir are inversed. Considering some possible situations of underground rock body’s density changes caused by the water impounding, four priori density contrasts are used to fit the remaining gravity changes obtained by repeat gravity data from April to July 2003 after deducting the gravity changes caused by the water loading. Some meaningful results are given. |
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| Keywords: | gravity data genetic algorithm(GA) density change inversion water impounding |
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