Pour points

tr_pour_points

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

Snap given pour points to the strongest flow nearby, or find candidate outlets or confluences ranked by catchment.

Like Snap Pour Point (Spatial Analyst) in ArcGIS Pro and GRASS r.water.outlet 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.

Pour points (outlets)

verified: 1 check passed

Pour points: found 5 candidate outlets draining at least 6.194 km2.

Pour points (outlets)
Pour points (outlets)

Parameters

ParameterValue
cell_size_m30

Numbers

MeasureValue
count5
backendpure
min_catchment_m26,193,800
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: Pour pointstr_pour_pointspoints5GeoJSON 2 KB