Y Gyfarwyddeb Fframwaith Dŵr (WFD) Dyfroedd Afon Cylch 2
Mae’r set ddata gofodol hon yn nodi'r cyrff dŵr afon a reolir dan y Gyfarwyddeb Fframwaith Dŵr ac unrhyw raglenni cysylltiedig. Mae WFD Cyrff Dŵr Afon Cylch 2 yn is-set a echdynnwyd o Rwydwaith Afonydd Manwl (RhAM) CNC.
Defnyddiwyd setiau data eraill ynghyd â gwybodaeth leol helaeth staff Cyfoeth Naturiol Cymru i ychwanegu at y geometreg graidd i gynnwys manylion a phriodoliad gofodol critigol, megis cyfeiriad llif a llwybr, nad yw ar gael o fapiau OS ac i wirio cywirdeb y llinell ganol. Mae rhannau o'r DRN sy’n perthyn i gorff dŵr penodol wedi’u huno fel bod corff dŵr a ddiffiniwyd yn un cofnod yn y set ddata (yn hytrach na bod mewn cannoedd o gofnodion o fewn y RhAM). Mae priodoleddau RhAM yn darfod ar y pwynt yma ac mae priodoliad penodol i’r corff dŵr wedi’i ychwanegu. Felly, mae’r geometreg ar gyfer y cyrff dŵr wedi’i gymryd o’r RhAM, ond mae’r priodoliad a nifer y cofnodion yn wahanol iawn. Nid yw pob adran o’r RhAM yn perthyn i gyrff dŵr diffiniedig ac mae set ddata afonydd terfynol y RhAM yn cynrychioli <20% o'r DRN ar-lein. Mae’r set ddata hefyd yn cynnwys setiau data camlesi a throsglwyddo dŵr wyneb a gofnodwyd fel setiau data ar wahân yn y gorffennol.
Rhybudd Gwybodaeth
Gwelwyd canlyniadau anrheolaidd mewn mannau samplu dŵr croyw trwy Gymru ar gyfer orthoffosffad rhwng Ionawr 2014 a Rhagfyr 2016. Defnyddiwyd y data hwn fel rhan o’r set ddata 3 blynedd a gyfarwyddodd ddosbarthiad WFD 2015 ac a effeithiodd ar ganlyniadau’r ymarfer hwnnw.
- Dull adnabod
- Rhychwant
- Dosbarthiad
- Ansawdd
- Allweddeiriau
- System Cyfeirio Gofodol
- Cynnwys
- Cyfyngiadau
- Cynnal a chadw
- Metadata
Dull adnabod
- Dynodydd
- NRW_DS116269
- Teitl Amgen
-
- WFD River Waterbodies Cycle 2 2015.LYR
- AfA292 Water Framework Directive (WFD) River waterbodies (Cycle 2)
- Laith Metadata
- English
- Datganiad
-
'WFD River Waterbodies Cycle 2' is a subset extracted from the NRW's Detailed River Network (DRN). Other input datasets and extensive local Natural Resources Wales staff knowledge has been used to augment the core geometry to incorporate critical spatial detail and attribution, such as flow direction and path, not available from the OS mapping and to verify the accuracy of the centreline itself.
Sections of DRN belonging to a particular waterbody have been merged together so that a defined waterbody is a single record within the dataset (rather than being made up of hundreds of records within the DRN). DRN attributes become obsolete at this point and waterbody specific attribution has been added. Therefore the geometry for the resulting waterbodies is taken from the DRN, but the attribution and number of records is very different. Not all sections of the DRN belong to defined waterbodies and the final WFD river waterbody dataset represents <20% of the online DRN.
Information Warning: Anomalous results were observed at freshwater sampling points throughout Wales for orthophosphate between January 2014 and December 2016. This data was used as part of the 3-year data set which informed the 2015 WFD classification and affected the outcome of that exercise. Please refer to the Supporting Documentation on the DataMapWales website for further information.
- Dyddiad cyfeirnod y set ddata (Cyhoeddiad)
- 2024-02-14
Ystod amser
- Dyddiad cychwyn
- 2013-04-01
- Dyddiad gorffen
- 2018-08-24
- Categori pwnc
-
- Inland waters
- Environment
Rhychwant
Rhychwant
- Hyd
- Wales (WLS)
))
Dosbarthiad
Dosbarthiad
- Fformat - Math a Disgrifiad
-
-
Geographic Information System
(
)
- Math
-
ESRI Feature Class
-
Geographic Information System
(
)
- Lleolwr Adnoddau
- Download Data and Web Service ( WWW:LINK-1.0-http--link )
- Lleolwr Adnoddau
- Web Mapping Service ( OGC:WMS )
Ansawdd
Ansawdd Data
- Cwmpas Ansawdd
- Dataset
- Cydymffurfiad
- 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
- Eglurhad
-
This dataset has not been assessed for conformance to the referenced INSPIRE regulation.
- Gradd
- false
- Datganiad
-
'WFD River Waterbodies Cycle 2' is a subset extracted from the NRW's Detailed River Network (DRN). Other input datasets and extensive local Natural Resources Wales staff knowledge has been used to augment the core geometry to incorporate critical spatial detail and attribution, such as flow direction and path, not available from the OS mapping and to verify the accuracy of the centreline itself.
Sections of DRN belonging to a particular waterbody have been merged together so that a defined waterbody is a single record within the dataset (rather than being made up of hundreds of records within the DRN). DRN attributes become obsolete at this point and waterbody specific attribution has been added. Therefore the geometry for the resulting waterbodies is taken from the DRN, but the attribution and number of records is very different. Not all sections of the DRN belong to defined waterbodies and the final WFD river waterbody dataset represents <20% of the online DRN.
Information Warning: Anomalous results were observed at freshwater sampling points throughout Wales for orthophosphate between January 2014 and December 2016. This data was used as part of the 3-year data set which informed the 2015 WFD classification and affected the outcome of that exercise. Please refer to the Supporting Documentation on the DataMapWales website for further information.
Allweddeiriau
Allweddair
Allweddair
-
NRW Thesaurus
-
- Water Framework Directive (WFD)
- rivers (see also specific river names)
- Math
- Theme
Dyfyniad
- Dyddiad (Cyhoeddiad)
- 2024-06-19
Allweddair
-
NRW SMNR Keywords
-
- Hydrological Processes (SMNR)
- Water Resources (SMNR)
- Freshwater and Wetlands (SMNR)
- Water Quality (SMNR)
- Sustainable Management of Natural Resources (SMNR)
- Natural Resources (Incl. Features and Processes) (SMNR)
- Ecosystem (SMNR)
- Management Areas (SMNR)
- Math
- Theme
Dyfyniad
- Dyddiad (Cyhoeddiad)
- 2024-06-26
System Cyfeirio Gofodol
Cynnwys
Gwybodaeth Cynnwys
Proffil CNC
Elfennau CNC
Cyfyngiadau
Cyfyngiadau
Cyfyngiadau ar Fynediad a Defnydd Cyhoeddus
- Math o Gyfyngiad
- Other restrictions
Cyfarwyddeb Cyfyngiadau Mynediad
- Cyfyngiadau
- no limitations
Testun cyfyngiadau mynediad
- Cyfyngiadau eraill
-
There are no access restrictions on this data. NRW may release, publish or disseminate it freely.
Defnyddiwch gyfyngiadau
- Cyfyngiadau Defnyddio
- Other restrictions
- Cyfyngiadau eraill
-
© CNC/NRW All rights Reserved. Contains Ordnance Survey Data. Ordnance Survey Licence number AC0000849444. Crown Copyright and Database Right. 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.
Datganiad Priodoli
- Cyfyngiadau eraill
-
Contains Natural Resources Wales information © Natural Resources Wales and Database Right. All rights Reserved. Contains Ordnance Survey Data. Ordnance Survey Licence number AC0000849444. Crown Copyright and Database Right.
Metadata
Metadata
- Dynodydd Ffeil
- 4f4c4942-4343-5764-6473-313136323639 XML
- Laith Metadata
- English
- Math o adnodd
- Dataset
- Dyddiad Metadata
- 2025-02-04T10:10:07.217Z
- Enw Safonol Metadata
- NRW
- Fersiwn Metadata
-
1.0