Difference between revisions of "Catchment"

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(Methods and Data sources)
 
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A catchment is an area of land that is drained by a river and its tributaries.  
 
A catchment is an area of land that is drained by a river and its tributaries.  
 
  
 
==Delineation criteria==
 
==Delineation criteria==
 
Delineation can be made based on the topographic divide (watershed) using digital elevation models (DEM) and a Geographic Information System (GIS), or with an existing catchment boundary database.
 
Delineation can be made based on the topographic divide (watershed) using digital elevation models (DEM) and a Geographic Information System (GIS), or with an existing catchment boundary database.
 
  
 
==Methods and Data sources==
 
==Methods and Data sources==
 
* Digital elevation models (e.g. [http://epp.eurostat.ec.europa.eu/portal/page/portal/gisco_Geographical_information_maps/geodata/digital_elevation_model EU-DEM]) using GIS algorithms to delimit the divide
 
* Digital elevation models (e.g. [http://epp.eurostat.ec.europa.eu/portal/page/portal/gisco_Geographical_information_maps/geodata/digital_elevation_model EU-DEM]) using GIS algorithms to delimit the divide
 
* EU-wide [http://ccm.jrc.ec.europa.eu/php/index.php?action=view&id=23 CCM2 River and Catchment Database (v2.1)] or [http://www.eea.europa.eu/data-and-maps/data/european-catchments-and-rivers-network EEA Ecrins] (connected watersheds, rivers, lakes, monitoring stations, dams) data set
 
* EU-wide [http://ccm.jrc.ec.europa.eu/php/index.php?action=view&id=23 CCM2 River and Catchment Database (v2.1)] or [http://www.eea.europa.eu/data-and-maps/data/european-catchments-and-rivers-network EEA Ecrins] (connected watersheds, rivers, lakes, monitoring stations, dams) data set
 
  
 
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Latest revision as of 15:34, 7 January 2019

Catchment

Definition

A catchment is an area of land that is drained by a river and its tributaries.

Delineation criteria

Delineation can be made based on the topographic divide (watershed) using digital elevation models (DEM) and a Geographic Information System (GIS), or with an existing catchment boundary database.

Methods and Data sources