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  <identifier>HydroBASINS Asia, Level 1, Version 1.c - Sub-basins in standard format (without lakes)</identifier>
  <parentidentifier></parentidentifier>
  <language></language>
  <type>dataset</type>
  <title>HydroBASINS Asia, Level 1, Version 1.c - Sub-basins in standard format (without lakes)</title>
  <abstract>All HydroBASINS layers were derived from World Wildlife Fund?s HydroSHEDS data based on a grid resolution of 15 arc-seconds (approximately 500 m at the equator). Watersheds were delineated in a consistent manner at different scales, and a hierarchical sub-basin breakdown was created following the topological concept of the Pfafstetter coding system. The resulting polygon layers are termed HydroBASINS and represent a subset of the HydroSHEDS database. This shapefile contains (sub-)basin polygons for Asia at Pfafstetter level 1.

HydroBASINS data provides a series of polygon layers that depict watershed boundaries and sub-basin delineations at a global scale. The goal of this product is to provide a seamless global coverage of consistently sized and hierarchically nested sub-basins at different scales (from tens to millions of square kilometers), supported by a coding scheme that allows for analysis of watershed topology such as up- and downstream connectivity.</abstract>
  <keywords vocabulary="Search keys">
    <keyword>HydroBASINS</keyword>
    <keyword>HydrSHEDS</keyword>
  </keywords>
  <links/>
  <fees></fees>
  <constraints type="Limitations of use">HydroBASINS is covered by the same License Agreement as the HydroSHEDS database, which is available at http://www.hydrosheds.org. For all regulations regarding license grants, copyright, redistribution restrictions, required attributions, disclaimer of warranty, indemnification, liability, waiver of damages, and a precise definition of licensed materials, please refer to the License Agreement. By downloading and using the data the user agrees to the terms and conditions of the License Agreement.</constraints>
  <rights>The HydroBASINS product has been developed on behalf of World Wildlife Fund US (WWF), with support and in collaboration with the EU BioFresh project, Berlin, Germany; the International Union for Conservation of Nature (IUCN), Cambridge, UK; and McGill University, Montreal, Canada. We kindly ask users to cite HydroBASINS in any published material produced using the data. If possible, online links to the HydroSHEDS website (http://www.hydrosheds.org) should be provided. Citations and acknowledgements of the HydroBASINS data should be made as follows: Lehner, B., Grill G. (2013): Global river hydrography and network routing: baseline data and new approaches to study the world?s large river systems. Hydrological Processes, 27(15): 2171?2186. Data is available at www.hydrosheds.org.&#xd;
</rights>
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