Hydrogeological units delimitation of Catalonia at 1:50,000 scale based on the INSPIRE data model
The delimitation of the Hydrogeological units (UH) at 1:50.000 scale in Catalonia is the representation of aquifers, aquifer systems, aquicludes and aquitards classified according to the hydrogeological data model of the technical guide for geological data specifications of the INSPIRE Directive 2007/2/EC reflected in the documents INSPIRE-TWGG (2012) and CODIIGE GTT-GE (2018), and it is the base from which the main aquifers are delimited allowing to define the groundwater bodies (GWB) as management units in hydrological planning.
Its delimitation, classification and characterization have been carried out by the ICGC and the Catalan Water Agency (ACA) based on the review and update of the delimitation of aquifers in Catalonia at a scale of 1:50.000 made by the ACA in 2013.
The polygons geometry of each of the hydrogeological units has been reviewed and updated according to the 1:50.000 geological database (BG50M_v1r1, 2007) among other delimitation criteria such as the surface watersheds, the network of rivers and/or administrative divisions along the coastline.
Made by: