• {'logoName' | translate} NRW Data Discovery

Helaethrwydd Morfeydd Heli

Haen data polygon sy'n dangos helaethrwydd morfeydd heli mewn dyfroedd arfordirol a throsiannol ar gyfer defnydd Rheoli Perygl Llifogydd ac Erydu Arfordirol a gweithredu'r Gyfarwyddeb Fframwaith Dŵr. Ar ochr y trawslun atfôr, bydd y ffin derfynol lle y mae'r gorchudd planhigion morfa heli mor brin mae ond yn gorchuddio 5%, boed yn forfa heli uchaf, canolig, isaf neu gyntaf.


Mae maint morfa heli wedi cael ei ddehongli o ddelweddu digidol 10cm wrth 10cm o'r awyr. Ffin y forfa heli tua'r tir yw'r pwynt lle y mae'r parthau uchaf yn gorffen a phlanhigion daearol yn cychwyn (wrth droed morglawdd yn aml. Y marc yw lle y mae planhigion morfa heli'n fwy na 5% o'r gymuned sy'n ddaearol yn bennaf.


Datganiad priodoli


Yn cynnwys gwybodaeth Cyfoeth Naturiol Cymru © Cyfoeth Naturiol Cymru a Hawl Cronfa Ddata. Cedwir pob hawl.

  • Dull adnabod
  • Rhychwant
  • Dosbarthiad
  • Ansawdd
  • Allweddeiriau
  • System Cyfeirio Gofodol
  • Cynnwys
  • Cyfyngiadau
  • Cynnal a chadw
  • Metadata

Dull adnabod

Dynodydd
NRW_DS116252
Teitl Amgen
  • Saltmarsh extents.LYR
  • Saltmarsh Extents AFA137
Laith Metadata
English
Datganiad

Saltmarsh extent has been interpreted from 10 cm by 10 cm digital aerial imagery. The demarcation of the landward extent is the point at which the upper most zones gives way to terrestrial plants (often at the foot of a seawall). The mark is where saltmarsh plants become more than 5% of the predominantly terrestrial community.

Dyddiad cyfeirnod y set ddata (Cyhoeddiad)
2017-03-01
Perchennog
  Natural Resources Wales (NRW) -
Maes-y-Ffynnon, Penrhosgarnedd, Bangor, Gwynedd, LL57 2DW, Wales
http://naturalresources.wales/?lang=en
Cychwynnwr
  Natural Resources Wales (NRW) -
Maes-y-Ffynnon, Penrhosgarnedd, Bangor, Gwynedd, LL57 2DW, Wales
http://naturalresources.wales/?lang=en
Cychwynnwr
  Environment Agency Wales -
Environment Agency Wales, Cambria House, 29 Newport Road, Cardiff, CF24 0TP
http://www.environment-agency.gov.uk/regions/wales
Cychwynnwr
  Environment Agency (EA) -
Environment Agency Wales, Cambria House, 29 Newport Road, Cardiff, CF24 0TP
http://www.environment-agency.gov.uk/
 

Rhychwant

Rhychwant

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


 

Maint Fertigol

Maint allweddair MEDIN

benthic boundary layer

 
 

Dosbarthiad

Dosbarthiad

Fformat - Math a Disgrifiad
  • Geographic Information System ( Unknown )

    Math

    ESRI Feature Class

Lleolwr Adnoddau
Web Mapping Service ( OGC:WMS )
Lleolwr Adnoddau
Download Data & Web Services ( WWW:LINK-1.0-http--link )
 

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

Saltmarsh extent has been interpreted from 10 cm by 10 cm digital aerial imagery. The demarcation of the landward extent is the point at which the upper most zones gives way to terrestrial plants (often at the foot of a seawall). The mark is where saltmarsh plants become more than 5% of the predominantly terrestrial community.

 

Allweddeiriau

Allweddair

GEMET - INSPIRE themes, version 1.0
  • Habitats and biotopes
Math
Theme

Dyfyniad

Dyddiad (Cyhoeddiad)
2008-06-01
Cod
geonetwork.thesaurus.external.theme.httpinspireeceuropaeutheme-theme

Allweddair

NRW Thesaurus

  • aerial photography (air photography) (aerial photographs)
  • MARINE
Math
Theme

Dyfyniad

Dyddiad (Cyhoeddiad)
2025-01-08
Cod
geonetwork.thesaurus.local.theme.converted_nrw-keywords

Allweddair

SeaDataNet Parameter Discovery Vocabulary

  • Habitat characterisation
  • Habitat extent
Math
Theme

Dyfyniad

Dyddiad (Cyhoeddiad)
2024-06-19
Cod
geonetwork.thesaurus.external.theme.rdf+xml

Allweddair

IPSV Subjects List

  • Monitoring
Math
Theme

Dyfyniad

Dyddiad (Cyhoeddiad)
2020-11-18
Cod
geonetwork.thesaurus.external.theme.subjects

Allweddair

NRW SMNR Keywords

  • Ecosystem (SMNR)
  • Water Quality (SMNR)
  • Water Resources (SMNR)
  • Sustainable Management of Natural Resources (SMNR)
  • Freshwater and Wetlands (SMNR)
  • Animals, Plants and Other Organisms (SMNR)
  • Management Areas (SMNR)
  • Natural Resources (Incl. Features and Processes) (SMNR)
  • Sea and Coast (SMNR)
Math
Theme

Dyfyniad

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

System Cyfeirio Gofodol

Cod
British National Grid (EPSG::27700)
 

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 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: Contains Natural Resources Wales information © Natural Resources Wales and Database Right. All rights Reserved.

 

Datganiad Priodoli

Cyfyngiadau eraill

Contains Natural Resources Wales information © Natural Resources Wales and Database Right. All rights Reserved.

 

Math o Drwydded

Cyfyngiadau eraill
Open Government Licence
 
 
 

Metadata

Metadata

Dynodydd Ffeil
4f4c4942-4343-5764-6473-313136323532 XML
Laith Metadata
English
Math o adnodd
Dataset
Dyddiad Metadata
2026-03-03T12:02:31.138Z
Enw Safonol Metadata
NRW
Fersiwn Metadata

1.0

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

Corff Cyhoeddi

Mynediad i'r Porth
Mynediad llawn i'r porth a'r metadata.


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