Gravity Data, Regional: Residual Separation
K Mallick, V Anthwar, KK Sharma - Encyclopedia of solid earth geophysics, 2020 - Springer
K Mallick, V Anthwar, KK Sharma
Encyclopedia of solid earth geophysics, 2020•Springer… Commonly, the regional Bouguer gravity anomaly is the longer wavelength field due to deep
sources, whereas the residual Bouguer gravity anomaly corresponds to short wavelength fields
of shallower bodies. The short wavelength field dies off with depth. … The above discussion
points to the fact that it is important to separate regional and residual gravity anomalies.
In effect, regional and residual gravity separation is a filtering process, and it enhances
the noise-to-signal ratio. This step is essential for a precise quantitative interpretation. …
sources, whereas the residual Bouguer gravity anomaly corresponds to short wavelength fields
of shallower bodies. The short wavelength field dies off with depth. … The above discussion
points to the fact that it is important to separate regional and residual gravity anomalies.
In effect, regional and residual gravity separation is a filtering process, and it enhances
the noise-to-signal ratio. This step is essential for a precise quantitative interpretation. …
The observed Bouguer gravity anomalies consist of two components–a regional component and a residual, that can be expressed by a simple relation:
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