Reference System

MD_ReferenceSystem:

referenceSystemIdentifier:

RS_Identifier:

code:

http://www.opengis.net/def/crs/EPSG/0/3035

code:

ETRS-LAEA (3035) [INSPIRE]

MD_ReferenceSystem:

referenceSystemIdentifier:

RS_Identifier:

code:

Local - depth

code:

http://www.opengis.net/def/crs/EPSG/0/1049

Identification

Data Identification:

citation:

Citation:

Title:

National scale potential recharge values for Ireland

Date:

CI_Date:

Date Type:

revision

date:

2020-06-30

Edition:

Version 1.0

Identifier:

RS_Identifier:

code:

ireland_lta_rech

code:

https://www.europe-geology.eu/tactic/ireland_lta_rech

Presentation Form:

modelDigital

Abstract:

The Groundwater Recharge map shows where different amounts of rainfall reach the stores of groundwater (the ‘aquifers’) across Ireland. The estimated average annual recharge amount is shown in units of millimetres per year (mm/yr). The amount of recharge was calculated over the period 1981-2010 and then averaged to give a yearly amount. The groundwater recharge map shows estimated average annual recharge to the deep groundwater system. The ‘deep groundwater’ can be tapped steadily year-round and yields aren’t significantly influenced by seasonal changes. The main geological controls on groundwater recharge include soil drainage, subsoil type, subsoil permeability, subsoil thickness, and the ability of the underlying aquifer to accept percolating waters. This map is best displayed to the scale 1:40,000 (1cm on the map relates to a distance of 400m). Users of the map should be aware that for each hydrogeological scenario, the map uses the typical recharge coefficient from an available range. It also uses the 30 year average effective rainfall. This means that groundwater recharge may be over- or under-estimated, depending on local conditions. Users should also be aware that the recharge cap applied to poorly productive aquifers may need further examination for particular studies

Point of Contact:

Responsible Party:

Individual Name:

taly.hunterwilliams@gsi.ie

Organisation Name:

Geological Survey of Ireland (GSI)

Contact Info:

CI_Contact:

Address:

e-mail:

Taly.HunterWilliams@gsi.ie

role:

custodian

Descriptive Keywords:

Keywords:

keyword:

http://inspire.ec.europa.eu/theme/hy

keyword:

Hydrography

keyword:

http://inspire.ec.europa.eu/theme/ge

keyword:

Geology

Thesaurus Name:

Citation:

Title:

GEMET - INSPIRE themes, version 1.0

Title:

http://www.eionet.europa.eu/gemet/inspire_themes

Date:

CI_Date:

date:

2008-06-01

Date Type:

publication

Keywords:

keyword:

http://inspire.ec.europa.eu/metadata-codelist/SpatialScope/national

keyword:

National

Thesaurus Name:

Citation:

Title:

http://inspire.ec.europa.eu/metadata-codelist/SpatialScope

Title:

Spatial scope

Date:

CI_Date:

date:

2019-05-22

Date Type:

publication

Keywords:

keyword:

http://inspire.ec.europa.eu/metadata-codelist/PriorityDataset/LocationOfWaterBodies-dir-2000-60

keyword:

Location of water bodies

Thesaurus Name:

Citation:

Title:

INSPIRE priority data set

Title:

http://inspire.ec.europa.eu/metadata-codelist/PriorityDataset

Date:

CI_Date:

date:

2018-04-04

Date Type:

publication

Keywords:

keyword:

https://data.geoscience.earth/ncl/geoera/keyword/618

keyword:

recharge

keyword:

https://data.geoscience.earth/ncl/geoera/keyword/2559

keyword:

national

keyword:

water budget

keyword:

https://data.geoscience.earth/ncl/geoera/keyword/2412

keyword:

resource

keyword:

https://data.geoscience.earth/ncl/geoera/keyword/1299

keyword:

https://data.geoscience.earth/ncl/geoera/keyword/1674

keyword:

resource management

Thesaurus Name:

Citation:

Title:

GeoERA Keyword Thesaurus

Title:

https://data.geoscience.earth/ncl/geoera/keyword

Date:

CI_Date:

date:

2020-01-01

Date Type:

publication

Keywords:

keyword:

TACTIC

keyword:

https://data.geoscience.earth/ncl/project/24

Thesaurus Name:

Citation:

Title:

https://data.geoscience.earth/ncl/project

Title:

European Geoscience Registry - Projects

Date:

CI_Date:

date:

2020-01-01

Date Type:

publication

Keywords:

keyword:

Groundwater; Potential recharge; Great Britain; Long term average;

Resource Constraints:

MD_LegalConstraints:

Access Constraints:

otherRestrictions

Other Constraints:

public access limited according to Article 13(1)(a) of the INSPIRE Directive

Other Constraints:

http://inspire.ec.europa.eu/metadata-codelist/LimitationsOnPublicAccess/INSPIRE_Directive_Article13_1a

Other Constraints:

Please contact https://www.gsi.ie/

MD_LegalConstraints:

Use Constraints:

otherRestrictions

Other Constraints:

Creative Commons BY 4.0

Other Constraints:

https://creativecommons.org/licenses/by/4.0

Other Constraints:

https://services.cuzk.cz/registry/codelist/ConditionsApplyingToAccessAndUse/copyright

Other Constraints:

Please contact https://www.gsi.ie/

Spatial Representation Type:

grid

language:

eng

topicCategory:

environment

Extent:

Geographic Element:

Geographic Bounding Box:

westBoundLongitude:

-10.470

eastBoundLongitude:

-5.372

southBoundLatitude:

51.444

northBoundLatitude:

55.383

Geographic Description:

Geographic Identifier:

RS_Identifier:

code:

https://publications.europa.eu/resource/authority/country/IRL

code:

Ireland

Vertical Element:

Vertical Extent:

Minimum Value:

0.01

Maximum Value:

vertical ref. system:

href:

http://www.opengis.net/def/crs/EPSG/0/1049

title:

Local - depth

Distribution

Distribution:

Distribution Format:

Format:

Format Name:

ASCII GRID

version:

10.3

Transfer Options:

Digital Transfer Options:

onLine:

CI_OnlineResource:

linkage:

https://data.geus.dk/egdi/?mapname=tactic_preview#layers=ireland_lta_rech

protocol:

https://services.cuzk.cz/registry/codelist/OnlineResourceProtocolValue/WWW:LINK-1.0-http--link

protocol:

WWW:LINK-1.0-http--link

description:

http://inspire.ec.europa.eu/metadata-codelist/OnLineDescriptionCode/accessPoint

description:

EGDI platform

function:

information

Data Quality

Data Quality:

Scope:

DQ_Scope:

level:

dataset

Report:

Domain Consistency:

Result:

Conformance Result:

specification:

Citation:

Title:

http://data.europa.eu/eli/reg/2010/1089

Title:

Commission Regulation (EU) No 1089/2010 of 23 November 2010 implementing Directive 2007/2/EC of the European Parliament and of the Council as regards interoperability of spatial data sets and services

Date:

CI_Date:

Date Type:

publication

date:

2010-12-08

explanation:

See referenced specification

Lineage:

LI_Lineage:

statement:

The map was created using the following datasets: daily rainfall, daily potential evapotranspiration (MetÉireann), daily actual evapotranspiration for different soil drainage classes (MÉRA/ICHEC), groundwater vulnerability map 1:40,000 (GSI), soil drainage 1:250,000 (Teagasc), generalised soil class 1:40,000 (Teagasc/GWWG), subsoil type 1:40,000 (Teagasc/EPA FIPS; GSI), subsoil permeability 1:40,000 (GSI), bedrock aquifer map 1:100,000 (GSI), sand and gravel aquifer map 1:40,000 (GSI). The map layers are overlain and interpreted using the guidelines (GW 5) outlined by the Irish Working Group on Groundwater (WGGW, 2005), subsequently revised in Hunter Williams et al. (2011, 2013 and 2021). The combination of hydrogeological layers gives 24 hydrogeological scenarios that are then related to a recharge coefficient. The recharge coefficient is the proportion of effective rainfall that can potentially become groundwater recharge. The map of recharge coefficients is combined with the effective rainfall map and the recharge cap to produce the groundwater recharge map for Ireland. Estimated groundwater recharge is lowest in areas overlain by thick, low permeability clay subsoil. Groundwater recharge is highest where there are coarse sand and gravels, which have high permeability, or where well-drained soils are thin or absent. Where locally important or poor fractured bedrock aquifers underlie the land surface, a maximum recharge acceptance capacity (‘recharge cap’) is applied, even where soils and subsoils are thin or absent. This is because these bedrock aquifers do not have enough fractures to store or transmit all of the percolating rainwater. In these settings, most of the potential groundwater recharge stays underground for only a short amount of time before it is ‘rejected’ and flows in nearby streams or ditches. Recharge values are estimated using: a lumped parameter forward modelling approach within a GIS. The model is uncalibrated, but recharge coefficients for different hydrogeological scenarios were constrained by using the results from several detailed studies that spanned a representative range of hydrogeological scenarios (see Hunter Williams et al., 2013 for details). Recharge values have been verified for some of the 24 scenarios, and produce acceptable water balances when used in catchment-scale assessments.

Metadata

File Identifier:

61193dfa-9da8-4370-a137-3db20a010833

language:

eng

Resource type:

dataset

Metadata Contact:

Responsible Party:

Individual Name:

taly.hunterwilliams@gsi.ie

Organisation Name:

Geological Survey of Ireland (GSI)

Contact Info:

CI_Contact:

Address:

e-mail:

Taly.HunterWilliams@gsi.ie

role:

pointOfContact

Date Stamp:

2022-04-04

Metadata Standard Name:

ISO 19115/INSPIRE_TG2/CZ4

Metadata Standard Version:

2003/cor.1/2006