magali.gradient

magali.gradient(data)

Compute first-order spatial derivatives and total gradient amplitude.

Parameters:

dataxr.DataArray

Input data array with coordinates “x” and “y”.

Returns:

dxxr.DataArray

First derivative along the x-direction.

dyxr.DataArray

First derivative along the y-direction.

dzxr.DataArray

First derivative along the z-direction.

tgaxr.DataArray

Total gradient amplitude.

Notes

The vertical derivative is estimated using the difference between an upward-continued and a downward-continued version of the data. This avoids downward continuation, which can amplify noise.