{
  "@context": {
    "@vocab": "https://schema.org/"
  },
  "@type": "Dataset",
  "comment": "This dataset metadata was generated with the use of AI and reviewed by an expert. If you see any mistakes please file an issue on GitHub at https://github.com/earthcube/communityCollections/issues.",
  "@id": "https://hydrography.org/#dataset",
  "name": "Hydrography90m",
  "url": "https://hydrography.org/",
  "description": "Hydrography90m is a high-resolution global hydrographic dataset derived from the MERIT Hydro digital elevation model at 3 arc-second (~90 m at the equator). It provides a globally seamless, standardized representation of stream channels and drainage basins with associated topographic and topological attributes for flow routing and network analysis. Products include stream and basin layers, sub-catchments linked to stream segments, stream order and slope metrics, flow-routing topology via unique segment identifiers, and tiled raster/vector layers suitable for large-scale hydrology, geomorphology, ecology, and environmental modeling applications.",
  "keywords": [
    "Hydrography90m",
    "hydrography",
    "hydrology",
    "drainage basins",
    "catchments",
    "sub-catchments",
    "river networks",
    "stream network",
    "flow routing",
    "stream order",
    "stream slope",
    "topographic attributes",
    "topological attributes",
    "MERIT Hydro",
    "DEM",
    "90 m",
    "global"
  ],
  "creator": [
    {
      "@type": "Person",
      "name": "Giuseppe Amatulli"
    },
    {
      "@type": "Person",
      "name": "Jaime R. Garcia Marquez"
    },
    {
      "@type": "Person",
      "name": "Tushar Sethi"
    },
    {
      "@type": "Person",
      "name": "Jens Kiesel"
    },
    {
      "@type": "Person",
      "name": "Afroditi Grigoropoulou"
    },
    {
      "@type": "Person",
      "name": "Maria M. Üblacker"
    },
    {
      "@type": "Person",
      "name": "Longzhu Q. Shen"
    },
    {
      "@type": "Person",
      "name": "Sami Domisch"
    }
  ],
  "provider": [
    {
      "@type": "Organization",
      "name": "Hydrography.org",
      "url": "https://hydrography.org/"
    },
    {
      "@type": "Organization",
      "name": "Leibniz-Institute of Freshwater Ecology and Inland Fisheries (IGB)",
      "url": "https://www.igb-berlin.de/en"
    }
  ],
  "publisher": [
    {
      "@type": "Organization",
      "name": "Leibniz-Institute of Freshwater Ecology and Inland Fisheries (IGB)",
      "url": "https://www.igb-berlin.de/en"
    }
  ],
  "datePublished": "2022-08-09",
  "isAccessibleForFree": true,
  "variableMeasured": [
    {
      "@type": "PropertyValue",
      "name": "Stream channels",
      "description": "Global stream channel network with unique segment identifiers and topology attributes.",
      "temporalCoverage": "Static",
      "spatialCoverage": {
        "@type": "Place",
        "name": "Global",
        "geo": {
          "@type": "GeoShape",
          "box": "-180,-60 180,90"
        }
      },
      "temporalResolution": "Static",
      "spatialResolution": [
        "3 arc-second (~90 m at the equator)",
        "90 m"
      ]
    },
    {
      "@type": "PropertyValue",
      "name": "Drainage basins",
      "description": "Global drainage basin delineations derived from flow routing.",
      "temporalCoverage": "Static",
      "spatialCoverage": {
        "@type": "Place",
        "name": "Global",
        "geo": {
          "@type": "GeoShape",
          "box": "-180,-60 180,90"
        }
      },
      "temporalResolution": "Static",
      "spatialResolution": [
        "3 arc-second (~90 m at the equator)",
        "90 m"
      ]
    },
    {
      "@type": "PropertyValue",
      "name": "Sub-catchments",
      "description": "Sub-catchment polygons linked to individual stream segments.",
      "temporalCoverage": "Static",
      "spatialCoverage": {
        "@type": "Place",
        "name": "Global",
        "geo": {
          "@type": "GeoShape",
          "box": "-180,-60 180,90"
        }
      },
      "temporalResolution": "Static",
      "spatialResolution": [
        "3 arc-second (~90 m at the equator)",
        "90 m"
      ]
    },
    {
      "@type": "PropertyValue",
      "name": "Network topology",
      "description": "Upstream/downstream connectivity and routing attributes for stream segments.",
      "temporalCoverage": "Static",
      "spatialCoverage": {
        "@type": "Place",
        "name": "Global",
        "geo": {
          "@type": "GeoShape",
          "box": "-180,-60 180,90"
        }
      },
      "temporalResolution": "Static",
      "spatialResolution": [
        "3 arc-second (~90 m at the equator)",
        "90 m"
      ]
    },
    {
      "@type": "PropertyValue",
      "name": "Stream order",
      "description": "Stream order metrics computed for the network.",
      "temporalCoverage": "Static",
      "spatialCoverage": {
        "@type": "Place",
        "name": "Global",
        "geo": {
          "@type": "GeoShape",
          "box": "-180,-60 180,90"
        }
      },
      "temporalResolution": "Static",
      "spatialResolution": [
        "3 arc-second (~90 m at the equator)",
        "90 m"
      ]
    },
    {
      "@type": "PropertyValue",
      "name": "Stream slope",
      "description": "Slope metrics computed along stream segments.",
      "temporalCoverage": "Static",
      "spatialCoverage": {
        "@type": "Place",
        "name": "Global",
        "geo": {
          "@type": "GeoShape",
          "box": "-180,-60 180,90"
        }
      },
      "temporalResolution": "Static",
      "spatialResolution": [
        "3 arc-second (~90 m at the equator)",
        "90 m"
      ]
    },
    {
      "@type": "PropertyValue",
      "name": "Distance metrics",
      "description": "In-stream and among-stream distance measures for network analysis.",
      "temporalCoverage": "Static",
      "spatialCoverage": {
        "@type": "Place",
        "name": "Global",
        "geo": {
          "@type": "GeoShape",
          "box": "-180,-60 180,90"
        }
      },
      "temporalResolution": "Static",
      "spatialResolution": [
        "3 arc-second (~90 m at the equator)",
        "90 m"
      ]
    }
  ],
  "measurementTechnique": [
    "Derivation of hydrographic networks and basins from MERIT Hydro DEM (~90 m) using hydrologic conditioning, flow routing, and network extraction",
    "Computation of stream topology, stream order, and stream slope metrics for global hydrographic analysis"
  ],
  "encodingFormat": [
    "application/zip",
    "image/tiff",
    "application/geotiff",
    "application/x-esri-shapefile",
    "application/octet-stream",
    "text/html"
  ],
  "license": "https://creativecommons.org/licenses/by-nc/4.0/",
  "distribution": [
    {
      "@type": "DataDownload",
      "name": "Hydrography90m website (project landing page)",
      "description": "Project website for Hydrography90m with documentation and navigation to layers and downloads.",
      "contentUrl": "https://hydrography.org/",
      "encodingFormat": [
        "text/html"
      ]
    },
    {
      "@type": "DataDownload",
      "name": "Hydrography90m layers overview",
      "description": "Overview of Hydrography90m layers available for download.",
      "contentUrl": "https://hydrography.org/hydrography90m/hydrography90m_layers",
      "encodingFormat": [
        "text/html"
      ]
    },
    {
      "@type": "DataDownload",
      "name": "Hydrography90m batch download script",
      "description": "Scripted procedure to download tiled raster and vector layers of Hydrography90m.",
      "contentUrl": "https://hydrography.org/hydrography90m/hydrography90m_download_script",
      "encodingFormat": [
        "text/html"
      ]
    },
    {
      "@type": "DataDownload",
      "name": "IGB FRED dataset landing page (DOI)",
      "description": "Institutional dataset record and distribution entry for Hydrography90m hosted by IGB (FRED).",
      "contentUrl": "https://doi.org/10.18728/igb-fred-762.1",
      "encodingFormat": [
        "text/html"
      ]
    }
  ],
  "citation": [
    {
      "@type": "ScholarlyArticle",
      "name": "Hydrography90m: A new high-resolution global hydrographic dataset",
      "author": [
        {
          "@type": "Person",
          "name": "Giuseppe Amatulli"
        },
        {
          "@type": "Person",
          "name": "Jaime R. Garcia Marquez"
        },
        {
          "@type": "Person",
          "name": "Tushar Sethi"
        },
        {
          "@type": "Person",
          "name": "Jens Kiesel"
        },
        {
          "@type": "Person",
          "name": "Afroditi Grigoropoulou"
        },
        {
          "@type": "Person",
          "name": "Maria M. Üblacker"
        },
        {
          "@type": "Person",
          "name": "Longzhu Q. Shen"
        },
        {
          "@type": "Person",
          "name": "Sami Domisch"
        }
      ],
      "isPartOf": {
        "@type": "Periodical",
        "name": "Earth System Science Data"
      },
      "datePublished": "2022",
      "identifier": [
        {
          "@type": "PropertyValue",
          "propertyID": "doi",
          "value": "10.5194/essd-14-4525-2022"
        }
      ],
      "sameAs": "https://doi.org/10.5194/essd-14-4525-2022"
    }
  ],
  "about": [
    {
      "@type": "Thing",
      "name": "Hydrology"
    },
    {
      "@type": "Thing",
      "name": "Hydrography"
    },
    {
      "@type": "Thing",
      "name": "Drainage basins"
    },
    {
      "@type": "Thing",
      "name": "River networks"
    },
    {
      "@type": "Thing",
      "name": "Flow routing"
    },
    {
      "@type": "Thing",
      "name": "Global environmental mapping"
    }
  ],
  "sameAs": [
    "https://www.igb-berlin.de/en/hydrography90m-dataset",
    "https://doi.org/10.18728/igb-fred-762.1"
  ]
}