Historic Groundwater Flood Map 1:20,000 Ireland (ROI) ITM

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Groundwater is the water that soaks into the ground from rain and can be stored beneath the ground. Groundwater floods occur when the water stored beneath the ground rises above the land surface.

The Historic Groundwater Flood Map shows the observed peak flood extents caused by groundwater in Ireland. This map was made using satellite images (Copernicus Programme Sentinel-1), field data, aerial photos, as well as flood records from the past. Most of the data was collected during the flood events of winter 2015 / 2016, as in most areas this data showed the largest floods on record.

The map is a vector dataset. Vector data portray the world using points, lines, and polygons (area). The floods are shown as polygons. Each polygon has info about the type of flood, the data source, and the area of the flood.The flood extents were calculated using data and techniques with various precision levels, and as such, it may not show the true historic peak flood extents.

Data Resources (6)

available as data viewer
available as shp
available as esri rest
available as WMS
available as groundwater level data viewer
available as PDF

Data Resource Preview - ESRI REST

Theme Science
Date released 2020-07-14
Date updated 2021-11-25
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 ['Contains Irish Public Sector Data (Geological Survey Ireland) licensed under a Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 (CC BY-NC-ND 4.0) International Licence', 'Groundwater flooding data produced by Geological Survey Ireland (GSI) is free for use under the conditions ofCreative Commons Attribution-NonCommercial-NoDerivatives 4.0 International Licence.https://creativecommons.org/licenses/by-nc-nd/4.0/https://creativecommons.org/licenses/by-nc-nd/4.0/legalcodeUnder the CC BY-NC-ND 4.0 Licence:Users must acknowledge the source of the Information in their product or application.\u200bUsers may not use the material for commercial purposes.\u200bUsers may not redistribute the material if has been modified.Please use this specific attribution statement: "Contains Irish Public Sector Data (Geological Survey Ireland) licensed under a Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 (CC BY-NC-ND 4.0) International Licence".In cases where it is not practical to use the statement users may include a URI or hyperlink to a resource that contains the required attribution statement.More permissions granted above and beyond (but still including) the CC licence can be found: https://www.gsi.ie/documents/Licence_CCPlus_Groundwater_Flooding_data.pdf', 'license']
Update frequency Annual
Language English
Landing page https://dcenr.maps.arcgis.com/apps/webappviewer/index.html?id=848f83c85799436b808652f9c735b1cc
Geographic coverage in GeoJSON format {"type":"Polygon","coordinates":[[[-10.47472, 51.44555],[-10.47472, 55.37999], [-6.01306, 55.37999], [-6.01306, 51.44555], [-10.47472, 51.44555]]]}
Spatial Reference Systems (SRS) Irish Transverse Mercator (ITM, EPSG:2157)
Vertical Extent {"verticalDomainName": "sea level", "minVerticalExtent": "0", "maxVerticalExtent": "0"}
Period of time covered (begin) 2016-01-01
Period of time covered (end) 2019-12-31