Service Description: This is the number of dams existing in the basin country unit area based on the GRanD Database. Please note: “While the main focus was to include all reservoirs with a storage capacity of more than 0.1 km3, many smaller reservoirs were added if data were available” (GRanD Database, 2011), and dams with data categorized as “unreliable” by the GRanD Database were not included in this calculation.
Data Source: Lehner, B., R-Liermann, C., Revenga, C., Vörösmarty, C., Fekete, B., Crouzet, P., Döll, P. et al.: High resolution mapping of the world’s reservoirs and dams for sustainable river flow management. Frontiers in Ecology and the Environment. Source: GWSP Digital Water Atlas (2008). Map 81: GRanD Database (V1.0). Accessed in January 2018. Available online at http://atlas.gwsp.org.
Service ItemId: 20768aa857b8457db8ebe3acb0c1dae5
Has Versioned Data: false
Max Record Count: 2000
Supported query Formats: JSON
Supports applyEdits with GlobalIds: False
Supports Shared Templates: True
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Spatial Reference: 4326 (4326)
Initial Extent:
XMin: -99.6766992842052
YMin: -35.4119028898577
XMax: -3.41415498172785
YMax: -0.771634866116962
Spatial Reference: 4326 (4326)
Full Extent:
XMin: -135.367048000265
YMin: -43.1091779997648
XMax: 140.813592079311
YMax: 69.6042749996915
Spatial Reference: 4326 (4326)
Units: esriDecimalDegrees
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