Continuation#
This function performs an upward and downward continuation for Magnetic and Gravity data. Upward continuation is achieved using the standard Fast Fourier transform (FFT), while downward continuation uses a Taylor expansion for extra stability.
Options:
Band to perform continuation - This should be magnetic or gravity data.
Continuation type - This can be upward or downward.
Continuation distance - a positive number denoting the continuation distance in metres. The dataset must be in a projection, not in geographic/geodetic coordinates.

Continuation options.#