DESCRIPTION
i.gravity calculates the Bouguer gravity anomaly (after Mussett and Khan).
Bouguer anomaly computation require:
- g_obs=observed gravity
- freeair_corr=free air correction
- bouguer_corr=bouguer correction
- terrain_corr=terrain correction
- latitude_corr=latitude correction
- eotvos_corr=eotvos correction
NOTES
- International Gravity Formula (mGal), lambda=latitude (dd)
- Eotvos correction (mGal), v=velocity (kph), lambda=latitude (dd), alpha=direction of travel measured clockwise from North
- Free air Correction (mGal), h=height (m)
- Bouguer Correction (mGal), rho=density of slab (Mg/m3), h=height (m)
-
For more details on the algorithms see [1].
SEE ALSO
i.latlon
REFERENCES
[1] Mussett, A.E. and Khan, M.A, M.A. Looking into the Earth: An Introduction to Geological Geophysics.
AUTHORS
Yann Chemin, University of London at Birkbeck, United Kingdom.
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