Bouguer anomaly
From Biocrawler, the free encyclopedia.
In geodesy and geophysics, the Bouguer anomaly is computed from a free-air anomaly by computationally removing from it the attraction of the terrain, the Bouguer reduction.
In case the terrain attraction is removed precisely, we speak of a refined Bouguer reduction. In case the terrain is approximated by a flat plate of thickness H, the height of the gravity measurement location above sea level, we speak of a simple Bouguer reduction. The difference between the two, the differential gravitational effect of the unevenness of the terrain, is called the terrain effect. It is always negative.
[edit]
External link
- Bouguer anomalies of Belgium. The blue regions are related to deficit masses in the subsurface (http://www.astro.oma.be/D1/GRAVIMETRY/gravboug.html)
[edit]
See also
gravity anomaly, physical geodesy, vertical deflection
 This physics article is a stub. You can help Biocrawler by expanding it (http://www.biocrawler.com/w/index.php?title=Bouguer_anomaly&action=edit). |
