harmonica.upward_continuation

harmonica.upward_continuation(grid, height_displacement)

Calculate the upward continuation of a potential field grid.

Compute the upward continuation of regular gridded data using frequency domain calculations through Fast Fourier Transform.

Parameters:

gridxarray.DataArray

A two dimensional xarray.DataArray whose coordinates are evenly spaced (regular grid). Its dimensions should be in the following order: northing, easting. Its coordinates should be defined in the same units.

height_displacementfloat

The height displacement of upward continuation. For upward continuation, the height displacement should be positive. Its units are the same units of the grid coordinates.

Returns:

upward continuationxarray.DataArray

A xarray.DataArray after upward continuation of the passed grid.

See also

harmonica.filters.upward_continuation_kernel

References

[Blakely1995]

Examples using harmonica.upward_continuation

Upward continuation of a regular grid

Upward continuation of a regular grid