HydroSHEDS (Hydrological data and maps based on Shuttle Elevation Derivatives at multiple Scales)
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: HydroSHEDS provides freely available global hydrographic and hydrological baseline data layers derived primarily from spaceborne elevation data (notably SRTM) and related processing. The HydroSHEDS product suite supports hydro-ecological research and applications worldwide and includes gridded core layers (e.g., void-filled DEM, hydrologically conditioned DEM, flow direction, flow accumulation, flow length, land mask/sinks) as well as derived hydrographic products such as catchment and sub-basin boundaries, river networks, and lakes. Products are available at multiple resolutions and scales (e.g., 3 arc-second, 15 arc-second, 30 arc-second and coarser) and are distributed in standard GIS formats for regional and global analysis.
keywords: HydroSHEDS
keywords: hydrography
keywords: hydrology
keywords: watersheds
keywords: catchments
keywords: drainage basins
keywords: river networks
keywords: stream network
keywords: flow direction
keywords: flow accumulation
keywords: flow length
keywords: hydrologically conditioned DEM
keywords: SRTM
keywords: digital elevation model
keywords: freshwater
keywords: GIS
keywords: GeoTIFF
keywords: shapefile
creator: World Wildlife Fund (WWF)
provider: HydroSHEDS Project
publisher: World Wildlife Fund (WWF)
is accessible for free: true
variable measured: Catchment and Sub-Basin Boundaries
  type: PropertyValue
  description: Vector catchment and sub-basin boundary products derived from HydroSHEDS hydrography.
  temporal coverage: Static
  spatial coverage: Global and regional hydrographic products; product-specific coverage varies
  temporal resolution: Static
  spatial resolution: 3 arc-second
  spatial resolution: 15 arc-second
  spatial resolution: 30 arc-second
variable measured: River networks
  type: PropertyValue
  description: Vector river/stream network products derived from HydroSHEDS hydrography.
  temporal coverage: Static
  spatial coverage: Global and regional hydrographic products; product-specific coverage varies
  temporal resolution: Static
  spatial resolution: 3 arc-second
  spatial resolution: 15 arc-second
  spatial resolution: 30 arc-second
variable measured: Lakes and water bodies
  type: PropertyValue
  description: Lake and water body products distributed as part of the HydroSHEDS product suite.
  temporal coverage: Static
  spatial coverage: Global and regional hydrographic products; product-specific coverage varies
  temporal resolution: Static
  spatial resolution: 3 arc-second
  spatial resolution: 15 arc-second
  spatial resolution: 30 arc-second
variable measured: Void-filled DEM
  type: PropertyValue
  description: Digital elevation model underpinning HydroSHEDS core layers.
  temporal coverage: Static
  spatial coverage: Global and regional hydrographic products; product-specific coverage varies
  temporal resolution: Static
  spatial resolution: 3 arc-second
  spatial resolution: 15 arc-second
  spatial resolution: 30 arc-second
variable measured: Conditioned DEM
  type: PropertyValue
  description: Hydrologically conditioned DEM used to derive flow products.
  temporal coverage: Static
  spatial coverage: Global and regional hydrographic products; product-specific coverage varies
  temporal resolution: Static
  spatial resolution: 3 arc-second
  spatial resolution: 15 arc-second
  spatial resolution: 30 arc-second
variable measured: Flow direction
  type: PropertyValue
  description: Drainage direction grid derived from the conditioned DEM.
  temporal coverage: Static
  spatial coverage: Global and regional hydrographic products; product-specific coverage varies
  temporal resolution: Static
  spatial resolution: 3 arc-second
  spatial resolution: 15 arc-second
  spatial resolution: 30 arc-second
variable measured: Flow accumulation
  type: PropertyValue
  description: Upstream contributing area / upstream cell count derived from flow direction.
  temporal coverage: Static
  spatial coverage: Global and regional hydrographic products; product-specific coverage varies
  temporal resolution: Static
  spatial resolution: 3 arc-second
  spatial resolution: 15 arc-second
  spatial resolution: 30 arc-second
variable measured: Flow length
  type: PropertyValue
  description: Upstream and/or downstream flow length derived from flow direction.
  temporal coverage: Static
  spatial coverage: Global and regional hydrographic products; product-specific coverage varies
  temporal resolution: Static
  spatial resolution: 3 arc-second
  spatial resolution: 15 arc-second
  spatial resolution: 30 arc-second
variable measured: Land mask and sinks
  type: PropertyValue
  description: Land/ocean mask and coastal/inland sink indicators used in HydroSHEDS processing.
  temporal coverage: Static
  spatial coverage: Global and regional hydrographic products; product-specific coverage varies
  temporal resolution: Static
  spatial resolution: 3 arc-second
  spatial resolution: 15 arc-second
  spatial resolution: 30 arc-second
encoding format: image/tiff
encoding format: application/geotiff
encoding format: application/zip
encoding format: application/x-esri-shapefile
encoding format: application/vnd.esri.filegdb
license: https://data.hydrosheds.org/file/technical-documentation/HydroSHEDS_TechDoc_v1_4.pdf
distribution: HydroSHEDS website (overview)
  type: DataDownload
  description: HydroSHEDS main website with product overview and navigation to downloads.
  encoding format: text/html
distribution: HydroSHEDS core data downloads (GeoTIFF)
  type: DataDownload
  description: Download page for HydroSHEDS core raster layers (e.g., DEM, conditioned DEM, flow direction, flow accumulation, flow length, land mask) in multiple resolutions, provided as GeoTIFF tiles and regional/global bundles.
  encoding format: text/html
distribution: HydroSHEDS products index
  type: DataDownload
  description: Products landing page providing access to HydroSHEDS datasets (core layers and derived hydrographic products).
  encoding format: text/html
distribution: HydroSHEDS technical documentation and license agreement
  type: DataDownload
  description: Technical documentation for HydroSHEDS v1 including the HydroSHEDS v1 license agreement (Appendix A).
  encoding format: application/pdf
measurement technique: Hydrographic derivation from digital elevation models (primarily SRTM) including hydrologic conditioning and flow routing
measurement technique: Derivation of flow direction, flow accumulation, and related hydrological grids from conditioned elevation data
measurement technique: Generation of hydrographic features (basins/catchments, river networks, lakes) from processed hydrographic foundations
citation: New global hydrography derived from spaceborne elevation data
  type: ScholarlyArticle
  author: B. Lehner
  author: K. Verdin
  author: A. Jarvis
  is part of: Eos, Transactions, American Geophysical Union
  date published: 2008
about: Hydrology
about: Hydrography
about: Watersheds
about: River networks
about: Catchments
about: Digital elevation models
about: Freshwater conservation

PropertyValue
property ID: doi
value: 10.1029/2008EO100001