The Map of Hydrogeological Areas of Catalonia 1:250,000 (MAH250M v1.0, 2017) is a support tool for the representation and dissemination of territorial and subsoil hydrogeological features. It is a synthesis on a 1:250,000 scale of the hydrogeological macro-units into which land area may be divided (termed hydrogeological areas) and includes the listing of the geological formations distinguished in the Geological map of Catalonia 1:250,000 identified as hydrogeological formations, bearing in mind their lithology.
On November 2022, the download formats have been updated to include the "qml" symbolization compatible with the open-source QGIS software.
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SHAPE format
The ZIP file that is downloaded includes the following files:
- arees-hidrogeologiques-v1r0-sectors-2022:Â Hydrogeologicalsectors (polygons).
Contains the following fields:- CODI_CAS:Â Unique code that identifies the object.
- SECTOR:Â Hydrogeologicalsector.
- DESCRIP:Â Hydrogeologicalsector description.
- arees-hidrogeologiques-v1r0-arees-2022:Â Hydrogeological area (polygons).
Contains the following fields:- CODI_CAS:Â Unique code that identifies the object.
- CODI_AH:Â Hydrogeological area code.
- NOM_AH:Â Hydrogeological area name.
- SECTOR:Â Hydrogeological sector.
- arees-hidrogeologiques-v1r0-limits-arees-2022:Â Hydrogeological area boundaries (lines).
Contains the following fields:- CODI_CAS:Â Unique code that identifies the object.
- TIPUS_LIM:Â Hydrogeological area boundaries type.
- DESC_LAH:Â Hydrogeological area boundaries type description.
- arees-hidrogeologiques-v1r0-formacions-2022:Â Hydrogeological formation (polygons).
Contains the following fields:- CODI_CAS:Â Unique code that identifies the object.
- CODI_GFH:Â Hydrogeological formation group code.
- GRUP_FH:Â Hydrogeological formation group name.
- CODI_FH:Â Hydrogeological formation code.
- DESCRIP_FH:Â Hydrogeological formation name.
- MGC250M: 1:250.000 geological map epigraph.
- arees-hidrogeologiques-v1r0-naturalesa-aquifers-2022:Â Aquifer media according to lithology (polygons).
Contains the following fields:- CODI_CAS:Â Unique code that identifies the object.
- CODI_GTAQ:Â Predominant aquifer media group code.
- NOM_GTAQ:Â Predominant aquifer media group name.
- CODI_TAQ:Â Predominant aquifer media code.
- NOM_TAQ:Â Predominant aquifer media name.
It is included the Layerfile (.lyr) for ArcGIS/ArcMap Desktop v10.0 (ESRI) and Layerfile (.lyrx) for ArcGIS Pro symbolization files for each of the datasets and the "qml" symbolization files for each of the datasets supported by the open-source QGIS software.
The reference system of the distributed data is ETRS89.