hydromt.flw.upscale_flwdir#

hydromt.flw.upscale_flwdir(ds: ~xarray.core.dataset.Dataset, flwdir: ~pyflwdir.pyflwdir.FlwdirRaster, scale_ratio: int, method: str = 'com2', uparea_name: ~typing.Optional[str] = None, flwdir_name: str = 'flwdir', logger=<Logger hydromt.flw (WARNING)>, **kwargs) → Tuple[DataArray, FlwdirRaster][source]#

Upscale flow direction network to lower resolution.

Parameters:

ds (xarray.Dataset) – Dataset flow direction.
flwdir (pyflwdir.FlwdirRaster) – Flow direction raster object.
scale_ratio (int) – Size of upscaled (coarse) grid cells.
uparea_name (str, optional) – Name of upstream area DataArray, by default None and derived on the fly.
flwdir_name (str, optional) – Name of upscaled flow direction raster DataArray, by default “flwdir”
method ({'com2', 'com', 'eam', 'dmm'}) – Upscaling method for flow direction data, by default ‘com2’.

Returns:

da_flwdir = xarray.DataArray – Upscaled D8 flow direction grid.
flwdir_out (pyflwdir.FlwdirRaster) – Upscaled pyflwdir flow direction raster object.