Vertical deflection

（重定向自Deflection of the vertical）

Erdschwerefeld: Lotrichtung, Geoid und Äquipotential

A : Geoid
B : Ellipsoid
C : Equipotential line
D : Astronomical zenith (plumb line)
E : Ellipsoidal zenith
F : Vertical deviation angle

The vertical deflection (deflection of the plumb line, astro-geodetic deflection) at a point on the earth is a measure of how far the direction of the local gravity field has been shifted by local anomalies such as nearby mountains. (Here "gravity" means apparent gravity—true gravity "reduced" by the earth's spin). They are widely used in geodesy, for surveying networks and for geophysical purposes.

单词	Deflection of the vertical
释义	Deflection of the vertical 英语例句库 A new means of determining astro geodetic deflection of the vertical CCD automatic astrometer and the new method to determine the difference of height anomalies between two points are described. 介绍当今确定天文大地垂线偏差的新仪器———CCD自动天体测量仪和确定两点间高程异常差的新方法。英语百科 Vertical deflection （重定向自Deflection of the vertical） The vertical deflection (deflection of the plumb line, astro-geodetic deflection) at a point on the earth is a measure of how far the direction of the local gravity field has been shifted by local anomalies such as nearby mountains. (Here "gravity" means apparent gravity—true gravity "reduced" by the earth's spin). They are widely used in geodesy, for surveying networks and for geophysical purposes.
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