WWF HydroSHEDS Void-Filled DEM, 3 Arc-Seconds

WWF/HydroSHEDS/03VFDEM
Dataset Availability
2000-02-11T00:00:00 - 2000-02-22T00:00:00
Dataset Provider
Earth Engine Snippet
ee.Image("WWF/HydroSHEDS/03VFDEM")
Tags
geophysical void-filled elevation dem topography wwf hydrosheds water hydrology hydrography srtm

Description

HydroSHEDS is a mapping product that provides hydrographic information for regional and global-scale applications in a consistent format. It offers a suite of geo-referenced datasets (vector and raster) at various scales, including river networks, watershed boundaries, drainage directions, and flow accumulations. HydroSHEDS is based on elevation data obtained in 2000 by NASA's Shuttle Radar Topography Mission (SRTM).

This void-filled elevation dataset is the first step towards producing the conditioned DEM datasets. Spikes and wells in the SRTM data were detected and voided out. Small voids were filled by interpolation of surrounding elevations. The ocean was set to an elevation of 0 meters, and lakes, islands, and rivers were filled using other techniques. Full details of the underlying digital elevation model are available in the HydroSHEDS website and documentation.

This dataset is at 3 arc-second resolution. The datasets available at 3 arc-seconds are the Void-Filled DEM, Hydrologically Conditioned DEM, and Drainage (Flow) Direction.

HydroSHEDS was developed by the World Wildlife Fund (WWF) Conservation Science Program in partnership with the U.S. Geological Survey, the International Centre for Tropical Agriculture, The Nature Conservancy, and the Center for Environmental Systems Research of the University of Kassel, Germany.

Bands

Resolution
3 arc seconds

Bands

Name Units Min Max Description
b1 Meters -424* 8642*

Elevation

* estimated min or max value

Terms of Use

Terms of Use

HydroSHEDS data are free for non-commercial and commercial use. For more information, please refer to the License Agreement.

Citations

Citations:
  • Lehner, B., Verdin, K., Jarvis, A. (2008): New global hydrography derived from spaceborne elevation data. Eos, Transactions, AGU, 89(10): 93-94.

Explore in Earth Engine

var dataset = ee.Image('WWF/HydroSHEDS/03VFDEM');
var elevation = dataset.select('b1');
var elevationVis = {
  min: -50.0,
  max: 3000.0,
  gamma: 2.0,
};
Map.setCenter(-121.652, 38.022, 8);
Map.addLayer(elevation, elevationVis, 'Elevation');

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