Asia: Void-filled digital elevation model at 30s resolution, 2007

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Abstract/Contents

Abstract: HydroSHEDS (Hydrological data and maps based on SHuttle Elevation Derivatives at multiple Scales) provides hydrographic information in a consistent and comprehensive format for regional and global-scale applications. HydroSHEDS offers a suite of geo-referenced data sets (vector and raster), including stream networks, watershed boundaries, drainage directions, and ancillary data layers such as flow accumulations, distances, and river topology information. HydroSHEDS is derived from elevation data of the Shuttle Radar Topography Mission (SRTM) at 3 arc-second resolution. Available HydroSHEDS resolutions range from 3 arc-second (approx. 90 meters at the equator) to 5 minute (approx. 10 km at the equator) with seamless near-global extent.
Purpose: The goal of developing HydroSHEDS was to generate key data layers to support regional and global watershed analyses, hydrological modeling, and freshwater conservation planning at a quality, resolution and extent that had previously been unachievable.

Type of resource	cartographic, software, multimedia
Form	Raster Dataset
Publisher	U.S. Geological Survey
Publication date	2007
Language	English
Digital origin	born digital
Map data	Scale not given. ; Custom projection E 55°--E 180°/N 60°--S 10°, Scale not given ; EPSG::4326

Creator	World Wildlife Fund (WWF)

Supplemental information	For more information please refer to the HydroSHEDS Technical Documentation: Lehner, B., Verdin, K., Jarvis, A. (2006): HydroSHEDS Technical Documentation. World Wildlife Fund US, Washington, DC. Available at http://hydrosheds.cr.usgs.gov. Please also visit http://www.worldwildlife.org/hydrosheds and http://hydrosheds.cr.usgs.gov for information on data download and status reports.
WGS84 Cartographics	This layer is presented in the WGS84 coordinate system for web display purposes. Downloadable data are provided in native coordinate system or projection.
Location	https://purl.stanford.edu/jd036jd7627

Use and reproduction: Users may apply HydroSHEDS for non-commercial purposes. Any modification of the original data by users must be noted. The authors of HydroSHEDS may request reprints of publications and copies of derived materials. The user shall not reproduce, convert, (re)publish, (re)distribute, (re)broadcast, (re)transmit, sell, rent, lease, sublicense, lend, assign, time-share, or transfer, in whole or in part, or provide unlicensed third parties access to the data and related materials without explicit written permission from the authors. We kindly ask users to cite HydroSHEDS in any published material produced using this data. If possible, please provide online links to http://www.worldwildlife.org/hydrosheds for general information, and/or http://hydrosheds.cr.usgs.gov for data download and technical information.
Copyright: HydroSHEDS has been generated through the extensive use and incorporation of data products provided by various other authors. The data and related materials may thus contain proprietary and confidential property of these authors and/or their licensor(s). HydroSHEDS data and related materials are protected by United States copyright or sui generis laws and applicable international copyright treaties and/or conventions.
License: This work is licensed under a Creative Commons Attribution Non Commercial 3.0 Unported license (CC BY-NC).

Preferred citation: HydroSHEDS has been developed by the Conservation Science Program of World Wildlife Fund (WWF), in partnership with the U.S. Geological Survey (USGS), the International Centre for Tropical Agriculture (CIAT), The Nature Conservancy (TNC), and the Center for Environmental Systems Research (CESR) of the University of Kassel, Germany.

HydroSHEDS

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