Gravity External Correction Method Based on WGS84 Normal Gravity Formula
详细信息
- 责任者：Luo Di (School of Geosciences ; China University of Petroleum ; Qingdao 266580 ; China) ; Liu Zhan
- 刊名：Journal of China University of Petroleum
- 出版年：2012
- 卷期：36(6)
- 关键词：重力异常 ; gravity anomaly
- 页码：p.40-46
- 图表：3 illus., 15 refs.
- 分类号：1600
- issnNo：ISSN1673-5005
- isbnNo：CN37-1441/TE
摘要
Taking WGS84 ellipsoid as the datum to create a normal gravity fomula of the earth’s surface, the normal gravity of every survey points in the earth surface can be directly computed by the formula and the gravity abnormal to the survey points’ location could be calculated directly so that the problmes in gravity external correction can be avoided. The results of the observed gravity data show that compared with Bouguer gravity anomaly, the gravity anomaly caculated by the formula could reflect information of structure much clearly, and some small faults and rocks could be found easily in the gravity anomaly.
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