Water Framework Directive (WFD) Groundwater bodies Cycle 1
Cyrff dŵr daear Cylch 1 y Gyfarwyddeb Fframwaith Dŵr

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  • wel
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Water Framework Directive (WFD) Groundwater bodies Cycle 1 is a spatial (polygon) dataset containing attributes that have been collated as defined for the implementation of the Water Framework Directive (WFD). Article 2, clause 2 of the WFD defines them as '...all water which is below the surface of the ground in the saturation zone and in direct contact with the ground or subsoil'. For the purposes of reporting under the WFD a groundwater body represent a distinct body of groundwater flow with a coherent flow unit including recharge and discharge areas with little flow across the boundaries. These reflect hydrogeological characteristics containing information on flow and stage properties, recharge and vulnerability to pollution. This has been undertaken through defining aquifers into different types and broken into catchment units at Catchment Abstraction Management Strategy (CAMS) scale. Since water bodies are attributed with a unique identifier (EA_WB_ID) this dataset can be linked directly to other WFD data sources such as physical characteristics, risk, classification and proposed objectives.

Mae cyrff dŵr daear Cylch 1 y Gyfarwyddeb Fframwaith Dŵr yn set ddata ofodol (polygon) sy'n cynnwys nodweddion sydd wedi cael eu coladu fel y diffiniwyd ar gyfer gweithredu'r Gyfarwyddeb Fframwaith Dŵr. Mae Erthygl 2, Cymal 2 y Gyfarwyddeb Fframwaith Dŵr yn eu diffinio fel 'yr holl ddŵr sy'n is na wyneb y tir yn y parth trwytho ac mewn cyswllt uniongyrchol â'r tir neu isbridd'. At ddibenion hysbysu o dan y Gyfarwyddeb Fframwaith Dŵr, mae corff dŵr daear yn cynrychioli corff penodol o lif dŵr daear gydag uned llifo gydlynol, gan gynnwys ardaloedd adlwytho a rhyddhau, gydag ond ychydig o lif ar draws y terfynau. Mae'r rhain yn adlewyrchu nodweddion hydrodaearyddol sy'n ystyried gwybodaeth am nodweddion llif a chamau, adlwytho, a pha mor agored ydynt i lygredd. Mae hyn wedi cael ei gynnal trwy ddiffinio dyfrhaenau o ran teipiau gwahanol a'u rhannu’n unedau dalgylch ar raddfa Strategaethau Rheoli Tynnu Dŵr Dalgylch. Gan fod cyrff dŵr wedi'u penodi gyda rhif adnabod unigryw (EA_WB_ID), mae'r set ddata hon yn gallu cael ei chysylltu'n uniongyrchol â ffynnonnellau data eraill y Gyfarwyddeb Fframwaith Dŵr megis nodweddion corfforol, risg, dosbarthiad ac amcanion arfaethedig.


Cydnabyddiaeth


Yn cynnwys gwybodaeth Cyfoeth Naturiol Cymru © Cyfoeth Naturiol Cymru a Hawl Cronfa Ddata. Cedwir pob hawl. Wedi deillio’n rhannol o ddata digidol ar raddfa 1:50,000 ac 1:250,000 dan ganiatâd Arolwg Daearegol Prydain. © NERC.

Identification

Dynodydd
Identifier
NRW_DS116245
Teitl Amgen
Alternative Title
  • AfA090 WFD Groundwaterbodies
  • WFD Groundwaterbodies Cycle 1.lyr
Laith Metadata
Metadata Language
English
Lineage

The primary input dataset is '1:625K Classified Aquifer Geology'. This dataset has been digitised directly from the hard copy '1:250K Solid Geology Map' and classified according to aquifer type and are therefore directly derived from the underlying British Geological Society (BGS) data. These classifications were verified by the BGS consultation at area level and in some instances 1:50K Solid Geology has been used to define localised boundaries.
Dyddiad cyfeirnod y set ddata (Cyhoeddiad)
Dataset Reference Date (Publication)
2022-10-14
Perchennog
Owner
  Natural Resources Wales (NRW) -
Maes-y-Ffynnon, Penrhosgarnedd, Bangor, Gwynedd, LL57 2DW, Wales
http://naturalresources.wales/?lang=en
Cychwynnwr
Originator
  Environment Agency (EA) -
Millbank Tower, 25th Floor, 21//24 Millbank, London, SW1P 4XL, England
http://www.environment-agency.gov.uk/
Cychwynnwr
Originator
  Natural Resources Wales (NRW) -
Maes-y-Ffynnon, Penrhosgarnedd, Bangor, Gwynedd, LL57 2DW, Wales
http://naturalresources.wales/?lang=en
Cychwynnwr
Originator
  Environment Agency Wales (EA Wales) -
Cambria House, 29 Newport Road, Cardiff, CF24 0TP, Wales
www.environment-agency.gov.uk
 

Extent

Extent

Hyd
Geographic Extent
Wales (WLS)
N
W
E
S
Map representing the geographic extent of the dataset


 
 

Distribution

Dosbarthiad
Distribution

Fformat - Math a Disgrifiad
Format Type and Description
  • Geographic Information System ( )

    Specification

    ESRI Feature Class

Lleolwr Adnoddau
Resource Locator
View and Download ( WWW:LINK-1.0-http--link )
Lleolwr Adnoddau
Resource Locator
Web Mapping Service ( OGC:WMS )
 

Quality

Ansawdd Data
Data quality

Cwmpas Ansawdd
Quality Scope
Dataset
Dataset
Cydymffurfiad
Conformity
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
Explanation

This dataset has not been assessed for conformance to the referenced INSPIRE regulation.
Degree
false
Lineage

The primary input dataset is '1:625K Classified Aquifer Geology'. This dataset has been digitised directly from the hard copy '1:250K Solid Geology Map' and classified according to aquifer type and are therefore directly derived from the underlying British Geological Society (BGS) data. These classifications were verified by the BGS consultation at area level and in some instances 1:50K Solid Geology has been used to define localised boundaries.
 

Keywords

Allweddair
Keywords

GEMET - INSPIRE themes, version 1.0
Math
Type
Theme
Theme

Dyfyniad
Citation

Dyddiad (Cyhoeddiad)
Date (Publication)
2008-06-01
Code
geonetwork.thesaurus.external.theme.httpinspireeceuropaeutheme-theme

Allweddair
Keywords

NRW Thesaurus
  • classification
  • inland waters
  • Water Framework Directive (WFD)
Math
Type
Theme
Theme

Dyfyniad
Citation

Dyddiad (Cyhoeddiad)
Date (Publication)
2025-01-08
Code
geonetwork.thesaurus.local.theme.converted_nrw-keywords

Allweddair
Keywords

NRW SMNR Keywords
  • Ecosystem (SMNR)
  • Sustainable Management of Natural Resources (SMNR)
  • Water Resources (SMNR)
  • Management Areas (SMNR)
  • Freshwater and Wetlands (SMNR)
  • Water Quality (SMNR)
  • Hydrological Processes (SMNR)
  • Natural Resources (Incl. Features and Processes) (SMNR)
Math
Type
Theme
Theme

Dyfyniad
Citation

Dyddiad (Cyhoeddiad)
Date (Publication)
2024-06-26
Code
geonetwork.thesaurus.local.theme.converted_nrw-smnr-keywords
 

Spatial Reference System

Code
British National Grid (EPSG::27700)
 

Content

Gwybodaeth Cynnwys
Content Information

Proffil CNC
NRW Profile

Elfennau CNC
Custom Elements

 

Constraints

Constraints

Limitations on Public Access and Use

Math o Gyfyngiad
Restriction type
Other restrictions
Other restrictions
 

Access Constraints Directive

Limitations
no limitations
 

Access Constraints Text

Other constraints

This data is jointly owned by NRW and British Geological Society (BGS). There are no access restrictions on this data. NRW may release, publish or disseminate it freely.
 

Use Constraints

Cyfyngiadau Defnyddio
Use constraints type
Other restrictions
Other restrictions
Other constraints

© CNC/NRW Derived in part from 1:50,000 and 1:250,000 scale digital data under permission from British Geological Survey. ©NERC. Data may be re-used under the terms of the Open Government Licence providing it is done so, acknowledging both the source and copyright of the owners. It is the recipient's responsibility to ensure the data is fit for the intended purpose.
 

Attribution Statement

Other constraints

Contains Natural Resources Wales information © Natural Resources Wales and Database Right. All rights Reserved. Derived in part from 1:50,000 and 1:250,000 scale digital data under permission from British Geological Survey. ©NERC.
 
 
 

Metadata

Metadata

Dynodydd Ffeil
File Identifier
4f4c4942-4343-5764-6473-313136323435 XML
Laith Metadata
Metadata Language
English
Math o adnodd
Resource type
Dataset
Dataset
Dyddiad Metadata
Metadata Date
2025-05-08T07:45:20.861Z
Enw Safonol Metadata
Metadata Standard Name
NRW
Fersiwn Metadata
Metadata Standard Version

1.0

Pwynt Cyswllt
pointOfContact
  Natural Resources Wales (NRW) -
Maes-y-Ffynnon, Penrhosgarnedd, Bangor, Gwynedd, LL57 2DW, Wales
http://naturalresources.wales/?lang=en
 
 

Publishing Body

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