NRW_DS116252 eng dataset Natural Resources Wales (NRW) Maes-y-Ffynnon, Penrhosgarnedd, Bangor, Gwynedd, LL57 2DW, Wales enquiries@naturalresourceswales.gov.uk http://naturalresources.wales/?lang=en pointOfContact 2026-03-03T12:02:31 MEDIN 3.1.2 wel eng utf8 British National Grid (EPSG::27700) Saltmarsh Extents Saltmarsh Extents Helaethrwydd Morfeydd Heli Saltmarsh extents.LYR Saltmarsh Extents AFA137 2017-03-01 publication 4f4c4942-4343-5764-6473-313136323532 Polygon data layer showing the extent of Saltmarsh in Coastal and Transitional waters for use by both Flood and Coastal Risk Management and the implementation of Water Framework Directive. At the seaward end of the transect, the final demarcation will be where the saltmarsh vegetation cover has become so sparse it only covers 5% whether it is Upper, Mid, Lower or Pioneer saltmarsh. Polygon data layer showing the extent of Saltmarsh in Coastal and Transitional waters for use by both Flood and Coastal Risk Management and the implementation of Water Framework Directive. At the seaward end of the transect, the final demarcation will be where the saltmarsh vegetation cover has become so sparse it only covers 5% whether it is Upper, Mid, Lower or Pioneer saltmarsh. 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. Natural Resources Wales (NRW) Maes-y-Ffynnon, Penrhosgarnedd, Bangor, Gwynedd, LL57 2DW, Wales enquiries@naturalresourceswales.gov.uk http://naturalresources.wales/?lang=en owner Natural Resources Wales (NRW) Maes-y-Ffynnon, Penrhosgarnedd, Bangor, Gwynedd, LL57 2DW, Wales enquiries@naturalresourceswales.gov.uk http://naturalresources.wales/?lang=en custodian Natural Resources Wales (NRW) Maes-y-Ffynnon, Penrhosgarnedd, Bangor, Gwynedd, LL57 2DW, Wales enquiries@naturalresourceswales.gov.uk http://naturalresources.wales/?lang=en originator Environment Agency Wales Environment Agency Wales, Cambria House, 29 Newport Road, Cardiff, CF24 0TP enquiries@environment-agency.gov.uk http://www.environment-agency.gov.uk/regions/wales originator Environment Agency (EA) Environment Agency Wales, Cambria House, 29 Newport Road, Cardiff, CF24 0TP enquiries@environment-agency.gov.uk http://www.environment-agency.gov.uk/ originator Natural Resources Wales (NRW) Maes-y-Ffynnon, Penrhosgarnedd, Bangor, Gwynedd, LL57 2DW, Wales enquiries@naturalresourceswales.gov.uk http://naturalresources.wales/?lang=en distributor asNeeded Habitats and biotopes theme GEMET - INSPIRE themes, version 1.0 2008-06-01 publication geonetwork.thesaurus.external.theme.httpinspireeceuropaeutheme-theme aerial photography (air photography) (aerial photographs) MARINE theme NRW Thesaurus 2025-01-08 publication geonetwork.thesaurus.local.theme.converted_nrw-keywords Habitat characterisation Habitat extent theme SeaDataNet Parameter Discovery Vocabulary 2024-06-19 publication geonetwork.thesaurus.external.theme.rdf+xml Monitoring theme IPSV Subjects List 2020-11-18 publication geonetwork.thesaurus.external.theme.subjects 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) theme NRW SMNR Keywords 2024-06-26 publication geonetwork.thesaurus.local.theme.converted_nrw-smnr-keywords otherRestrictions There are no access restrictions on this data. NRW may release, publish or disseminate it freely. no limitations otherRestrictions © 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. Contains Natural Resources Wales information © Natural Resources Wales and Database Right. All rights Reserved. Open Government Licence vector eng utf8 biota environment imageryBaseMapsEarthCover SeaVoX Vertical Co-ordinate Coverages 2021-01-06 revision benthic boundary layer NRW Geographic Identifiers Collection 2024-01-01 publication Wales (WLS) -5.777741 -2.608865 51.240829 53.513067 2009-01-01 2017-03-01 Geographic Information System Unknown ESRI Feature Class https://datamap.gov.wales/capabilities/layer/330/?ows_service=wms OGC:WMS Web Mapping Service information https://datamap.gov.wales/layers/inspire-nrw:NRW_SALTMARSH_EXTENTS WWW:LINK-1.0-http--link Download Data & Web Services information dataset 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 2010-12-08 publication This dataset has not been assessed for conformance to the referenced INSPIRE regulation. false 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. 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.