摘要
为了实现用重力测量来监测地壳垂直运动,本文研究了地球内部各向挤压,拉张应力源、膨胀源、热应力源等激发引起的地球表面重力和高程变化及相互关系。导出了重力、高程变化及相互关系在球坐标系中的理论和数值计算公式。给出了1066A地球模型的地表重力一高程变化的转换因子。并对由于源的深度不同,大地水准面高的变化对转换因子的影响做了讨论。
To successful application of observed gravity variations in the detection of the vertical movements depends on the reliavility of the conversion factor between gravity and height changes. Therefore, it is very necessary to determine the relation between gravity-height variations. The gravity and height variation produced by potential stress acting within earth are dealed with in this paper. The theoretical and numerical formulas for gravity and height variations in spherical polar coordinates are derived. The conversion factors of gravity-height-variation are determined for 1066A Earth model, and the effects of sources with different depth, geoid warping on conversion factors are discussed.
出处
《地壳形变与地震》
CSCD
1989年第2期1-10,共10页
Crustal Deformation and Earthquake
