摘要
近年来,随着重力垂直梯度测量精度的提高及间接推求方法的改善,它在地球科学的研究中的作用日益扩大,本文叙述了利用高精度重力仪直接测量垂直梯度的方法与注意事项,阐明了垂直梯度在地学研究中的意义与作用,其中包括(1)可以更精确测定大地水准面与正高;(2)可以更好探测地下的物质的分布及界面起伏;(3)可根据垂直梯度及形变资料反演场源及解释引起上述变化的动力机制.关于如何进一步发掘其潜力,这里也提出了建议.
Recent years, with the survey precision rising and indirect determining methods progressing, gravity vertical gradient is widely used in geoscience. The direct gravity gradient measurement method by means of LCR gravity meter and its operating notice are presented in this paper. The paper expounds the meaning and effect of gravity gradient to geoscience, it mainly includes: (1) precisely determining geoid and othormetric height; (2) nicely detecting material distribution and interface fluctuation; (3) resolving inversion problem in potential field sources, and interpreting dynamical mechanism of gravity gradient variation by combining gravity gradient measurement and deformation data. Its application potential in geoscience is proposed in the paper.
出处
《地球物理学进展》
CSCD
北大核心
2007年第6期1686-1691,共6页
Progress in Geophysics
基金
国家高科技"863"计划基金(2006AA09Z153)
国家自然科学基金:(40574033)联合资助
关键词
重力垂直梯度
界面反演
动力机制
gravity vertical gradient, interface inversion, dynamical mechanism