Water Framework Directive (WFD) River Basin Districts Cycle 3
Cylch 3 Ardaloedd Basn Afon y Gyfarwyddeb Fframwaith Dŵr (WFD)

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Water Framework Directive (WFD) River Basin Districts (RBD) is a spatial 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 '…the area of land and sea, made up of one or more neighbouring river basins together with their associated groundwaters and coastal waters…'. River Basin Districts have been delineated by using River Catchments as "building blocks" that have been aggregated together within a GIS, ensuring that WFD rivers do not intersect boundaries. Coastal and transitional waterbodies are also merged and assigned to a river basin district. River Catchments were delineated through use of flow data and a digital terrain model run through a hydrological model.

Mae Mae Ardaloedd Basn Afon (RBD) y Gyfarwyddeb Fframwaith Dŵr (WFD) yn set ddata ofodol sy'n crynhoi priodoleddau a gasglwyd fel y diffiniwyd ar gyfer gweithredu'r Gyfarwyddeb Fframwaith Dŵr (WFD). Mae Erthygl 2, cymal 2 o'r Gyfarwyddeb Fframwaith Dŵr yn eu diffinio fel '... yr ardal o dir a môr sy'n cynnwys un neu fwy o fasnau afonydd cyfagos ynghyd â'u dyfroedd daear cysylltiedig a dyfroedd arfordirol ...'. Mae Ardaloedd Basn Afon wedi'u dyrannu gan ddefnyddio Dalgylchoedd Afonydd fel "blociau adeiladu" sydd wedi'u rhoi at ei gilydd mewn GIS, gan sicrhau nad yw afonydd GFfD yn croestorri ffiniau. Mae cyrff dŵr arfordirol a chyrff dŵr trosiannol yn cael eu huno a'u dosbarthu i ardaloedd basn afon hefyd. Amlinellwyd dalgylchoedd afonydd drwy ddefnyddio data llif a model tir digidol wedi'i redeg drwy fodel hydrolegol.


Datganiad priodoli


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Identification

Dynodydd
Identifier
NRW_DS161282
Teitl Amgen
Alternative Title
  • WFD River Basin Districts Cycle3.lyr
Laith Metadata
Metadata Language
English
Lineage
Datganiad

The Cycle 3 RBD boundaries look very similar to the cycle 1 and 2 RBD boundaries but are based on the Cycle 3 versions of the river waterbody catchments, transitional and coastal waters. As a result some of the base datasets used for their delineation have changes and they have been declared OpenData.

Mae ffiniau'r Ardaloedd Basn Afon (RBD) ar gyfer Cylch 3 yn edrych yn debyg iawn i ffiniau RBD Cylchoedd 1 a 2, ond maent yn seiliedig ar fersiynau Cylch 3 o ddalgylchoedd cyrff dŵr afonydd, dyfroedd pontio a dyfroedd arfordirol. O ganlyniad, mae rhai o'r setiau data sylfaenol a ddefnyddiwyd i'w diffinio wedi newid, ac maent wedi'u dynodi'n Ddata Agored.
Dyddiad cyfeirnod y set ddata (Cyhoeddiad)
Dataset Reference Date (Publication)
2023-04-19

Temporal Extent

Begin date
2016-01-01
End date
2022-02-04
 
Categori pwnc
Topic category
  • Environment
    Environment
  • Inland waters
    Inland waters
  • Oceans
    Oceans
Perchennog
Owner
  Natural Resources Wales (NRW) -
Maes-y-Ffynnon, Penrhosgarnedd, Bangor, Gwynedd, LL57 2DW, Wales
http://naturalresources.wales/?lang=en
Cychwynnwr
Originator
  Natural Resources Wales (NRW) -
Maes-y-Ffynnon, Penrhosgarnedd, Bangor, Gwynedd, LL57 2DW, Wales
http://naturalresources.wales/?lang=en
 

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 ( )

Lleolwr Adnoddau
Resource Locator
Download Data & Web Services ( WWW:LINK-1.0-http--link )
Lleolwr Adnoddau
Resource Locator
Web 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
Datganiad

The Cycle 3 RBD boundaries look very similar to the cycle 1 and 2 RBD boundaries but are based on the Cycle 3 versions of the river waterbody catchments, transitional and coastal waters. As a result some of the base datasets used for their delineation have changes and they have been declared OpenData.

Mae ffiniau'r Ardaloedd Basn Afon (RBD) ar gyfer Cylch 3 yn edrych yn debyg iawn i ffiniau RBD Cylchoedd 1 a 2, ond maent yn seiliedig ar fersiynau Cylch 3 o ddalgylchoedd cyrff dŵr afonydd, dyfroedd pontio a dyfroedd arfordirol. O ganlyniad, mae rhai o'r setiau data sylfaenol a ddefnyddiwyd i'w diffinio wedi newid, ac maent wedi'u dynodi'n Ddata Agored.
 

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
  • Water Framework Directive (WFD)
  • inland waters
  • classification
  • river basin
Math
Type
Theme
Theme

Dyfyniad
Citation

Dyddiad (Cyhoeddiad)
Date (Publication)
2026-08-27
Code
geonetwork.thesaurus.local.theme.converted_nrw-keywords

Allweddair
Keywords

NRW SMNR Keywords
  • Ecosystem (SMNR)
  • Water Quality (SMNR)
  • Natural Resources (Incl. Features and Processes) (SMNR)
  • Sustainable Management of Natural Resources (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
noLimitations
 

Access Constraints Text

Other constraints

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 Data may be re-used under the terms of the Open Government Licence providing it is done so, acknowledging both the source and NRW's copyright. 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.
 

Licence

Other constraints
Open Government Licence
 
 
 

Metadata

Metadata

Dynodydd Ffeil
File Identifier
4f4c4942-4343-5764-6473-313631323832 XML
Laith Metadata
Metadata Language
English
Parent Identifier
Water Framework Directive (WFD) Regulations Cycle 3 Classification

NRW_DS125458
Math o adnodd
Resource type
Dataset
Dataset
Dyddiad Metadata
Metadata Date
2026-08-28T11:01:18.969Z
Enw Safonol Metadata
Metadata Standard Name
NRW
Fersiwn Metadata
Metadata Standard Version

1.0

Pwynt Cyswllt
pointOfContact
  Natural Resources Wales -
Maes y Ffynnon , Bangor , LL57 2DW , Wales
 
 

Publishing Body

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