UNEP/GRID-Geneva metadata catalogue
Major rivers of the world (Derived from HydroSHEDS)
The major rivers of the world are derived from the World Wildlife Fund's (WWF) HydroSHEDS drainage direction layer and a stream network layer. The drainage direction layer was created from NASA's Shuttle Radar Topographic Mission (SRTM) 15-second Digital Elevation Model (DEM). The raster stream network was determined by using the HydroSHEDS flow accumulation grid, with a threshold of about 1000 sqkm upstream area. The stream network dataset consists of the following information: the origin node of each arc in the network (FROM_NODE), the destination of each arc in the network (TO_NODE), the Strahler stream order of each arc in the network (STRAHLER), numerical code and name of the major basin that the arc falls within (MAJ_BAS and MAJ_NAME); - area of the major basin in square km that the arc falls within (MAJ_AREA); - numerical code and name of the sub-basin that the arc falls within (SUB_BAS and SUB_NAME); - area of the sub-basin in square km that the arc falls within (SUB_AREA); - numerical code of the sub-basin towards which the sub-basin flows that the arc falls within (TO_SUBBAS) (the codes -888 and -999 have been assigned respectively to internal sub-basins and to sub-basins draining into the sea). The attributes table now includes a field named "Regime" with tentative classification of perennial ("P") and intermittent ("I") streams.
Simple
- Date ( Publication )
- 2014-03-10T01:00:00
- Identifier
- http://datacore.grid.unep.ch/geonetwork/srv/metadata/d72bf361-2fc1-4ed3-906a-95e73ba3e552
- Presentation form
- Digital map
- Purpose
- To provide a river network with annotated attributes.
- Status
- On going
Point of contact
Point of contact
- Maintenance and update frequency
- As needed
- Keywords ( Theme )
-
- basins
- hydrology
- Keywords ( Place )
-
- World
- Access constraints
- Copyright
- Use constraints
- License
- Spatial representation type
- Vector
- Denominator
- 10000000
- Metadata language
- eng
- Character set
- UTF8
- Topic category
-
- Inland waters
N
S
E
W
))
- Reference system identifier
- WGS 84 - UTM zone 34S
- OnLine resource
-
Download resource
(
WWW:LINK-1.0-http--link
)
Download resource
- OnLine resource
-
AQUAMAPS:rivers_world_47950
(
OGC:WMS
)
Major rivers of the world, derived from HydroSHEDS
- Hierarchy level
- Dataset
Metadata
- File identifier
- d72bf361-2fc1-4ed3-906a-95e73ba3e552 XML
- Metadata language
- eng
- Character set
- UTF8
- Date stamp
- 2018-06-12T11:59:38
- Metadata standard name
- ISO 19115:2003/19139
- Metadata standard version
- 1.0
Resource provider
Overviews
large_thumbnail
Geographic bounding box
N
S
E
W
Provided by
Associated resources
Not available