Watershed

tr_watershed

Ngong Hills and the Rift Valley escarpment, Kajiado, KenyaHydrology1 call
What it does

Watersheds draining through pour points (snapped to the strongest flow nearby), or the largest outlet basins when no point is given.

Like Watershed + Snap Pour Point (Spatial Analyst) in ArcGIS Pro and GRASS r.water.outlet / r.watershed in QGIS. Run by the product's terrain engine on 30 m cells from Copernicus DEM GLO-30 (full resolution): 740 x 930 = 688,200 cells; no model was called.

Watersheds at the outlets found

verified: 3 checks passed

Watersheds of the 5 largest outlet basin(s): 428.951 km2 in total; the largest drains 138.166 km2.

Watersheds at the outlets found
Watersheds at the outlets found

Parameters

ParameterValue
cell_size_m30
max_basins5

Numbers

MeasureValue
backendpure
snap_cells3
dem.rows740
dem.cols930
dem.cell_m30
dem.crsEPSG:32737
dem.missing_frac0
dem.elev_min_m1,562
dem.elev_max_m2,456
dem.elev_mean_m1,824
dem.relief_m894.3
dem_source.kindcopernicus
dem_source.native_res_m30.91
dem_source.crsEPSG:4326
dem_source.datasetCopernicus DEM GLO-30

Notes

  • DEM: Copernicus DEM GLO-30 (open data; cached). Copernicus DEM GLO-30: produced using Copernicus WorldDEM-30 (c) DLR e.V. 2010-2014 and (c) Airbus Defence and Space GmbH 2014-2018 provided under COPERNICUS by the European Union and ESA
  • the grid (30 m) is finer than the DEM (30.9 m): values between DEM samples are interpolated

Layers

Files

LayerMade byKindFeaturesFile
Terrain: Watershedstr_watershedraster imagePNG 11 KB
Terrain: Watershed boundariestr_watershedpolygons5GeoJSON 35 KB
Terrain: Pour points (snapped)tr_watershedpoints5GeoJSON 1 KB