Sources
Help build the largest human-edited directory on the web.
Submit a site - Become an editor
Wikipedia. Licensed under the GNU Free Documentation License.
Are you an expert in this subject? Join the discussion and share your knowledge at Wikipedia.org.
Bouguer anomaly
From Wikipedia, the free encyclopedia
In geodesy and geophysics, the Bouguer anomaly (named after Pierre Bouguer) 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.
The equation for the simple Bouguer reduction is δG_f = 2Hρπγ, where H is the thickness of the plate, γ is the constant of gravitation and ρ is the density of the material.
 |
This physics-related article is a stub. You can help Wikipedia by expanding it. |