org.n52.wps.ags.spatialanalyst.hydrology.flowdirection FlowDirection_sa Creates a raster of flow direction from each cell to its steepest downslope neighbor. Uses ArcObjects library - Spatial Analyst in_surface_raster in surface raster The input raster representing a continuous surface. application/img application/GeoTIFF application/img force_flow force flow Specifies if edge cells will always flow outward or follow normal flow rules. NORMAL — If the maximum drop on the inside of an edge cell is greater than zero, the flow direction will be determined as usual; otherwise, the flow direction will be toward the edge. Cells that should flow from the edge of the surface raster inward will do so. FORCE — All cells at the edge of the surface raster will flow outward from the surface raster.

out_flow_direction_raster out flow direction raster The output raster that shows the flow direction from each cell to its steepest downslope neighbor. application/img application/GeoTIFF application/img

out_drop_raster out drop raster An optional output drop raster. The drop raster shows the ratio of the maximum change in elevation from each cell along the direction of flow to the path length between centers of cells, expressed in percentages. application/img application/GeoTIFF application/img