xrspatial.hydro.watershed_mfd.watershed_mfd#

xrspatial.hydro.watershed_mfd.watershed_mfd(flow_dir_mfd: DataArray, pour_points: DataArray, name: str = 'watershed_mfd') → DataArray[source]#

Label each cell with the pour point it drains to (MFD).

Parameters:

  • flow_dir_mfd (xarray.DataArray or xr.Dataset) – 3D MFD flow direction array of shape (8, H, W).

  • pour_points (xarray.DataArray) – 2D raster where non-NaN cells are pour points.

  • name (str, default='watershed_mfd') – Name of output DataArray.

Returns:

2D float64 array where each cell = label of its pour point. NaN for nodata or unreachable cells.

Return type:

xarray.DataArray or xr.Dataset