Absolute and Relative Gravimetry

Absolute and Relative Gravimetry
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绝对和相对重力测定

DOI:
10.1007/978-3-642-11741-1_1
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发表时间:
2010
影响因子:
--
通讯作者:
L. Timmen
L. Timmen
中科院分区:
--
文献类型:
--
作者:
L. Timmen

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绝对和相对重力测量可以确定特定位置的重力加速度(通常称为重力),以及检测给定位置的重力随时间的变化。对于高精度要求,必须非常精确地定义重力点的几何位置,例如在地球动力学研究项目中,位于地面标记上方沿垂直方向的高度。可以对具有本地、区域或全球范围的大地测量网络进行调查,以监测短期和长期重力变化。
Absolute and relative gravimetry allow the determination of gravity acceleration, usually just called gravity, for specific positions as well as the detection of gravity changes with time at a given location. For high-accuracy demands, the geometrical position of a gravity point has to be defined very accurately, e.g. in geodynamic research projects, at a height along the vertical above a ground mark. Geodetic networks with local, regional or global extent can be surveyed to monitor short-term and long-term gravity variations.