pywasp.wasp.TopographyMap

class pywasp.wasp.TopographyMap(elev_map, rou_map, lctable=None, external_roughness=None, check_errors=True)

Class for topography maps

This is a helper class that allows the calculation of roughness and elevation roses or site effects at specific points.

Parameters:

• elev_map (gpd.GeoDataFrame or xarray.DataArray) – Elevation map

• rou_map (gpd.GeoDataFrame) – Landcover or roughness map

• lctable (wk.LandCoverTable) – Landcover table that specifies the landcover properties in case the rou_map only has landcover

• external_roughness (None or float) – Only relevant when using a polygon rou_map. The external roughness specifies the roughness outside areas specified by the polygons. If None, the last lines spanning all polygons are removed and the last encountered polygon is valid infinitely in upwind direction.

• check_errors (bool) – If True, check for errors in the rou_map. If False, skip the error check. Default is True.

Notes

Multi-part gpd.GeoDataFrame are always converted to single-part GeoDataFrames.

Methods

__init__(elev_map, rou_map[, lctable, ...])
get_elev_rose(output_locs[, n_sectors, conf])	Create elevation rose for a set of output locations from a given map
get_rou_rose(output_locs[, n_sectors, conf, ...])	Create a roughness rose xarray object for all points
get_site_effects(output_locs[, conf, n_sectors])	Calculate speedups at all points provided
get_site_effects_rose(elev_rose, rou_rose, hgts)	Calculate speed ups, and reweight the significant land fraction
load(filename)	Load a TopographyMap from a zip file.
save(filename)	Save a TopographyMap to a zip file.