sandplover.plan.compute_shoreline_roughness

sandplover.plan.compute_shoreline_roughness(shore_mask, land_mask, **kwargs)

Compute shoreline roughness.

Computes the shoreline roughness metric:

\[L_{shore} / \sqrt{A_{land}}\]

given binary masks of the shoreline and land area. The length of the shoreline is computed internally with compute_shoreline_length.

Parameters:

• shore_mask (ShorelineMask, ndarray) – Shoreline mask. Can be a ShorelineMask object, or a binarized array.

• land_mask (LandMask, ndarray) – Land mask. Can be a LandMask object, or a binarized array.

• **kwargs – Keyword argument are passed to compute_shoreline_length internally.

Returns:

roughness – Shoreline roughness, computed as described above.

Return type:

float

Examples

Compare the roughness of the shoreline early in the model simulation with the roughness later. Here, we use the elevation_offset parameter (passed to ElevationMask) to better capture the topography of the pyDeltaRCM model results.

(Source code)

(png, hires.png)

(png, hires.png)

(png, hires.png)