Hydrography90m
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.
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
keywords: hydrography
keywords: hydrology
keywords: drainage basins
keywords: catchments
keywords: sub-catchments
keywords: river networks
keywords: stream network
keywords: flow routing
keywords: stream order
keywords: stream slope
keywords: topographic attributes
keywords: topological attributes
keywords: MERIT Hydro
keywords: DEM
keywords: 90 m
keywords: global
creator: Giuseppe Amatulli
creator: Jaime R. Garcia Marquez
creator: Tushar Sethi
creator: Jens Kiesel
creator: Afroditi Grigoropoulou
creator: Maria M. Üblacker
creator: Longzhu Q. Shen
creator: Sami Domisch
provider: Hydrography.org
provider: Leibniz-Institute of Freshwater Ecology and Inland Fisheries (IGB)
publisher: Leibniz-Institute of Freshwater Ecology and Inland Fisheries (IGB)
date published: 2022-08-09
is accessible for free: true
variable measured: Stream channels
  type: PropertyValue
  description: Global stream channel network with unique segment identifiers and topology attributes.
  temporal coverage: Static
  spatial coverage: Global
    type: Place
    geo: GeoShape
      box: -180,-60 180,90
  temporal resolution: Static
  spatial resolution: 3 arc-second (~90 m at the equator)
  spatial resolution: 90 m
variable measured: Drainage basins
  type: PropertyValue
  description: Global drainage basin delineations derived from flow routing.
  temporal coverage: Static
  spatial coverage: Global
    type: Place
    geo: GeoShape
      box: -180,-60 180,90
  temporal resolution: Static
  spatial resolution: 3 arc-second (~90 m at the equator)
  spatial resolution: 90 m
variable measured: Sub-catchments
  type: PropertyValue
  description: Sub-catchment polygons linked to individual stream segments.
  temporal coverage: Static
  spatial coverage: Global
    type: Place
    geo: GeoShape
      box: -180,-60 180,90
  temporal resolution: Static
  spatial resolution: 3 arc-second (~90 m at the equator)
  spatial resolution: 90 m
variable measured: Network topology
  type: PropertyValue
  description: Upstream/downstream connectivity and routing attributes for stream segments.
  temporal coverage: Static
  spatial coverage: Global
    type: Place
    geo: GeoShape
      box: -180,-60 180,90
  temporal resolution: Static
  spatial resolution: 3 arc-second (~90 m at the equator)
  spatial resolution: 90 m
variable measured: Stream order
  type: PropertyValue
  description: Stream order metrics computed for the network.
  temporal coverage: Static
  spatial coverage: Global
    type: Place
    geo: GeoShape
      box: -180,-60 180,90
  temporal resolution: Static
  spatial resolution: 3 arc-second (~90 m at the equator)
  spatial resolution: 90 m
variable measured: Stream slope
  type: PropertyValue
  description: Slope metrics computed along stream segments.
  temporal coverage: Static
  spatial coverage: Global
    type: Place
    geo: GeoShape
      box: -180,-60 180,90
  temporal resolution: Static
  spatial resolution: 3 arc-second (~90 m at the equator)
  spatial resolution: 90 m
variable measured: Distance metrics
  type: PropertyValue
  description: In-stream and among-stream distance measures for network analysis.
  temporal coverage: Static
  spatial coverage: Global
    type: Place
    geo: GeoShape
      box: -180,-60 180,90
  temporal resolution: Static
  spatial resolution: 3 arc-second (~90 m at the equator)
  spatial resolution: 90 m
measurement technique: Derivation of hydrographic networks and basins from MERIT Hydro DEM (~90 m) using hydrologic conditioning, flow routing, and network extraction
measurement technique: Computation of stream topology, stream order, and stream slope metrics for global hydrographic analysis
encoding format: application/zip
encoding format: image/tiff
encoding format: application/geotiff
encoding format: application/x-esri-shapefile
encoding format: application/octet-stream
encoding format: text/html
license: https://creativecommons.org/licenses/by-nc/4.0/
distribution: Hydrography90m website (project landing page)
  type: DataDownload
  description: Project website for Hydrography90m with documentation and navigation to layers and downloads.
  encoding format: text/html
distribution: Hydrography90m layers overview
  type: DataDownload
  description: Overview of Hydrography90m layers available for download.
  encoding format: text/html
distribution: Hydrography90m batch download script
  type: DataDownload
  description: Scripted procedure to download tiled raster and vector layers of Hydrography90m.
  encoding format: text/html
distribution: IGB FRED dataset landing page (DOI)
  type: DataDownload
  description: Institutional dataset record and distribution entry for Hydrography90m hosted by IGB (FRED).
  encoding format: text/html
citation: Hydrography90m: A new high-resolution global hydrographic dataset
  type: ScholarlyArticle
  author: Giuseppe Amatulli
  author: Jaime R. Garcia Marquez
  author: Tushar Sethi
  author: Jens Kiesel
  author: Afroditi Grigoropoulou
  author: Maria M. Üblacker
  author: Longzhu Q. Shen
  author: Sami Domisch
  is part of: Earth System Science Data
  date published: 2022
about: Hydrology
about: Hydrography
about: Drainage basins
about: River networks
about: Flow routing
about: Global environmental mapping

PropertyValue
property ID: doi
value: 10.5194/essd-14-4525-2022