GSI Groundwater Karst Features

Theme: Science
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The National Karst Database consists of point features, locating the centre (or in the case of a cave, the entrance) of karst landforms grouped into 8 types and records details of the landforms dimensions and functioning.Karst is a term used world-wide to describe the distinctive landforms that develop on rock types that are readily dissolved by water. In Ireland, karstification mostly occurs in limestone regions. As approximately half of the Republic of Ireland is underlain by limestone, karst is a significant aspect of the Irish environment. There are many kinds of karst landforms, ranging in size from millimetres to kilometres. For simplicity, these landforms are grouped into 8 main types in the National Karst Landform Database.

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Theme Science
Date dataset released 2012-01-15
Date dataset updated 2017-06-19
Dataset conforms to these standards The INSPIRE Directive or INSPIRE lays down a general framework for a Spatial Data Infrastructure (SDI) for the purposes of European Community environmental policies and policies or activities which may have an impact on the environment.
Rights notes ['Creative Commons license conditions apply', 'https://creativecommons.org/licenses/by/4.0/', 'license', 'https://creativecommons.org/licenses/by/4.0/', 'license']
Update frequency Other
Language English
Geographic coverage in GeoJSON format {"type":"Polygon","coordinates":[[[-11.0, 50.0],[-11.0, 56.0], [-5.0, 56.0], [-5.0, 50.0], [-11.0, 50.0]]]}
Spatial Reference Systems (SRS) TM75 / Irish Grid (EPSG:29903)
Vertical Extent {"maxVerticalExtent": "1041", "verticalDomainName": "sea level", "minVerticalExtent": "0"}
Provenance information Lineage 1.Filename: Karst features database Originator.-Trinity College and Geological Survey of Ireland. Date (dd/mm/yyyy): 01/12/ 1998 Principle data capture Technique- Information taken from the OSi 1:50k Discovery Series, 1:10,560 sheets (6 inch sheets) and GPS system to locate point features which have been projected using the National Irish Grid. Nature of change/update to data. Ongoing addition of new records as data becomes available. Verification of location of karst features. Last Update in February 2007. Methodology.- Information entered in an Oracle database. Sources Used as input Data for the change /update.- Main data sources during the data compilation stage were: maps of vary scales, literature and company records. The main data sources during the updating stage are: information acquired during field investigation. Last Update in February 2007.
Period of time covered (begin) 2003-01-21
Period of time covered (end) 2011-01-20