Dan McKenzie and Carl Bowin used the spectral relation between Atlantic bathymetry and gravity to investigate how seafloor loads are supported. The method separates a topography-correlated signal from residual structure.[ref]
The relationship between bathymetry and gravity in the Atlantic Ocean by Dan McKenzie and Carl Bowin. Abstract: gravity/bathymetry filters and subsurface residuals
The wavelength dependence is useful because shallow loads, compensation and lithospheric flexure contribute differently across spatial scales. A single gravity anomaly does not isolate those contributions.
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