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 dataset provides polygons of nested, hierarchical watersheds, based on 15 arc-seconds (approx. 500 m at the equator) resolution raster data. The watersheds range from level 1 (coarse) to level 12 (detailed), using Pfastetter codes. Technical documentation: https://hydrosheds.org/images/inpages/HydroBASINS_TechDoc_v1c.pdf Note that the quality of the HydroSHEDS data is significantly lower for regions above 60 degrees northern latitude as there is no underlying SRTM elevation data available and thus a coarser-resolution DEM was (HYDRO1k provided by USGS). 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.
HydroSHEDS est un produit cartographique qui fournit des informations hydrographiques pour les applications à l'échelle régionale et mondiale dans un format cohérent. Il propose une suite d'ensembles de données géoréférencés (vectoriels et matriciels) à différentes échelles, y compris des réseaux fluviaux, des limites de bassins hydrographiques, des directions d'écoulement et des accumulations de débits. HydroSHEDS est basé sur des données d'élévation obtenues en 2000.
HydroSHEDS es un producto cartográfico que proporciona información hidrográfica para aplicaciones a escala regional y global en un formato coherente. Ofrece un paquete de conjuntos de datos georeferenciados (vectoriales y raster) a varias escalas, incluidas redes de ríos, límites de cuencas hidrográficas, direcciones de drenaje y acumulaciones de flujo. HydroSHEDS se basa en datos de elevación obtenidos en 2000 por la Misión de Topografía Radar Shuttle (SRTM) de la NASA. Este conjunto de datos proporciona polígonos de cuencas hidrográficas jerárquicas anidadas, basados en datos de ráster con una resolución de 15 segundos de arco (aprox. 500 m en el ecuador). Las cuencas hidrográficas van del nivel 1 (grueso) al nivel 12 (detallado), con códigos Pfastetter. Documentación técnica: https://hydrosheds.org/images/inpages/HydroBASINS_TechDoc_v1c.pdf Ten en cuenta que la calidad de los datos de HydroSHEDS es significativamente menor para las regiones por encima de los 60 grados de latitud norte, ya que no hay datos de elevación de SRTM subyacentes disponibles y, por lo tanto, se usó un DEM de resolución más baja (HYDRO1k proporcionado por el USGS). HydroSHEDS fue desarrollado por el Programa de Ciencias de la Conservación del Fondo Mundial para la Naturaleza (WWF) en asociación con el Servicio Geológico de EE.UU., el Centro Internacional de Agricultura Tropical, The Nature Conservancy y el Centro de Investigación de Sistemas Ambientales de la Universidad de Kassel, Alemania.
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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 dataset provides polygons of nested, hierarchical watersheds, based on 15 arc-seconds (approx. 500 m at the equator) resolution raster data. The watersheds range from level 1 (coarse) to level 12 (detailed), using Pfastetter codes. Technical documentation: https://hydrosheds.org/images/inpages/HydroBASINS_TechDoc_v1c.pdf Note that the quality of the HydroSHEDS data is significantly lower for regions above 60 degrees northern latitude as there is no underlying SRTM elevation data available and thus a coarser-resolution DEM was (HYDRO1k provided by USGS). 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.