pywasp.wasp.generalize

pywasp.wasp.generalize(bwc, topo_map, conf=None, gen_roughnesses=array([0., 0.03, 0.1, 0.4, 1.5]), gen_heights=array([10, 25, 50, 100, 250]), nsecs=None, allow_multiple_heights=False, mesoclimate=None, mesoclimate_interp_method='nearest', return_site_factors=False, cfd_volume=None)[source]

Creates a generalized wind climate using atlas_nt

Parameters:

  • bwc (xarray.DataSet) – PyWAsP xr.DataSet containing wind climate to be generalized

  • topo_map (TopographyMap) – Topographical map covering the area represented by the bwc

  • conf (Config) – PyWAsP configuration object

  • gen_roughnesses (numpy, optional) – 1D array of roughnesses for the generalization, by default [0, 0.03, 0.1, 0.4, 1.5]

  • gen_heights (numpy, optional) – 1D array of heights for the generalization, by default [10, 25, 50, 100, 250]

  • nsecs (int) – Number of wind direction sectors in the output, by default the same as the number of sectors in the input bwc.

  • allow_multiple_heights (bool, optional) – Allowing multiple heights, by default False (single height permitted)

  • mesoclimate (xarray.DataSet, default None) – If None use the ERA5 reanalysis to obtain the mesoclimate, otherwise one can create a dataset using the pywasp.wasp.get_climate() method

  • mesoclimate_interp_method (str, optional) – Interpolation method for mesoclimate, by default ‘nearest’

  • cfd_volume (xarray.DataSet, default None) – WAsP CFD volume xarray dataset that is used for obtaining site effects

Returns:

gwc (xarray.DataSet) – PyWAsP generalized wind climate from the binned wind climate

Notes

Run WAsP’s atlas_nt function to perform the “up” part of the WAsP framework. This will take the histogram data and convert it to a generalized wind climate at the provided roughnesses and heights above ground.

The resulting GenWindClimate will have the same dimensions as the input bin_wind climate, except when nsecs is specified with a different number of sectors than in the bwc.

If allow_multiple_heights is set to True result will be a separate generalized results from each tabfile height this means that user will need to determine which gwc to use for each height before running downscale