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| 引用本文： | 邢乐林,李辉,何志堂,Dong Zhengyao,董正瑶,谈洪波.?????????????????????????[J].大地测量与地球动力学,2008,28(6):38-42. |
| 作者姓名： | 邢乐林 李辉 何志堂 Dong Zhengyao 董正瑶 谈洪波 |
| 作者单位： | 1. 中国地震局地震研究所,武汉,430071;地壳运动与地球观测实验室,武汉,430071;武汉大学测绘学院,武汉,430079 2. 中国地震局地震研究所,武汉,430071;地壳运动与地球观测实验室,武汉,430071 3. 陕西省测绘局,西安,710054 |
| 基金项目： | 汶川地震应急重力观测项目 ， 国家发展与改革委员会国家重力台网中心建设项目 ， 中国地震局局管共用设备管理与技术服务项目 ， 中国地震局资助项目 |
| 摘 要： | 2007??4???2008??6?￡???FG5/232??FG5/214????????????????????????????????????????5?ξ???????????????ι????????????С???2??10 -8 ms -2??????t??????????????????????С???????????????????????????????????????2007??12????????????2007??4??????5??10 -8 ms -2?????????????????????仯?????????????????????????????δ????? |
| 关 键 词： | ???????????? ?????仯 FG5?????????? ???? ???????? |
ANALYSIS OF REPEAT ABSOLUTE GRAVIMETRIC RESULTSAT CHENGDU SEISMOSTATION |
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| Dong Zhengyao.ANALYSIS OF REPEAT ABSOLUTE GRAVIMETRIC RESULTSAT CHENGDU SEISMOSTATION[J].Journal of Geodesy and Geodynamics,2008,28(6):38-42. | |
| Authors: | Dong Zhengyao |
| Institution: | 1)Institute of Seismology, CEA ,Wuhan 430071 2)Crustal Movement Laboratory, Wuhan 4300713)School of Geodesy and Geomatics, Wuhan University, Wuhan 4300794)Shanxi Bureau of Surveying and Mapping, Xi’an 710054 |
| Abstract: | The repeat absolute gravity observation had been done five times at Chengdu station by FG5/214 and FG5/232 absolute gravimeter from April,2007 to June,2008, and every standard deviation is less than ±2×10 -8 ms -2 .The results show that the environmental noise of Chengdu station is very little and the geologic condition is stable; and by the processing and analyzing of the observed data, it shows that the gravity values in December,2007 increased 5×10 -8 ms -2 than that in April,2007, after the Wenchuan Ms8.0 earthquake happened, the trend of whole gravity change has dropped and some times risen with some ascendant but still has not come back to the former normal value. |
| Keywords: | absolute gravimetry gravity change FG5 absolute gravimeter earthquake Chengdu seismostation |
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