tilupy.make_mass

Functions

calotte(→ numpy.ndarray)

Construct mass on topography as volume between sphere and topography.

Module Contents

Functions

tilupy.make_mass.calotte(x: numpy.ndarray, y: numpy.ndarray, z: numpy.ndarray, x0: float, y0: float, radius: float, norm_offset: float = 0, res_type: str = 'projected_normal') → numpy.ndarray

Construct mass on topography as volume between sphere and topography.

Parameters:

  • x (numpy.ndarray) – X-axis array, with length nx.

  • y (numpy.ndarray) – Y-axis array, with length ny.

  • z (numpy.ndarray) – Array of altitudes, of size (ny, nx). z[0, 0] has coordinates (x[0], y[-1]).

  • x0 (float) – X position of the calotte.

  • y0 (float) – Y position of the calotte.

  • radius (float) – Radius of the shpere.

  • norm_offset (float, optional) – Downwards offset between the sphere center and the topography, in the direction normal to the topography, by default 0.

  • res_type (string, optional) –

    Type of thickness output:

    • ’true_normal’: Real thickness in the direction normal to the topography.

    • ’vertical’: Thickness in the vertical direction.

    • ’projected_normal’: Thickness normal to the topography is computed from the vertical thickness projected on the axe normal to the topography.

    The default is ‘projected_normal’.

Returns:

Array of mass height, in the direction normal to topography.

Return type:

numpy.ndarray