pyflwdir.FlwdirRaster.upstream_area#

FlwdirRaster.upstream_area(unit: Literal['m2', 'ha', 'km2', 'cell'] = 'cell') → ndarray[source]#

Return the upstream-area raster for the flow directions.

Areas are returned in the units specified by unit.

Parameters:: unit ({'m2', 'ha', 'km2', 'cell'}) – Upstream-area units: square metres (‘m2’), hectares (‘ha’), square kilometres (‘km2’), or cells (‘cell’), by default ‘cell’.
Returns:: Upstream area in unit; no-data cells are set to -9999.
Return type:: 2D array