4f4c4942-4343-5764-6473-313038383030 English GIS and Spatial Data Team Natural Resources Wales, Maes y Ffynnon, Penrhosgarnedd, Bangor, Gwynedd, LL57 2DW gis.helpdesk@ccw.gov.uk http://naturalresourceswales.gov.uk/splash?orig=/ Data Services Team Natural Resources Wales (NRW), Maes y Ffynnon, Penrhosgarnedd, Bangor, Gwynedd, LL57 2DW enquiries@naturalresourceswales.gov.uk http://naturalresourceswales.gov.uk/splash?orig=/ 2024-12-09T13:10:05.265Z NRW 1.0 wel British National Grid (EPSG::27700) Phase 2 Saltmarsh Survey of Wales Phase 2 Saltmarsh Survey of Wales PH2_Saltmarsh_Vegetation.LYR PH2_Saltmarsh_Target_Notes.LYR PH2_Saltmarsh_Surveys.LYR PH2_Saltmarsh_Sites.LYR PH2_Saltmarsh_Quadrats_font.LYR PH2_Saltmarsh_Photo_points.LYR PH2_Saltmarsh_Mosaics_none.LYR Arolwg Cam 2 Morfeydd Heli Cymru NVC Phase 2 Saltmarsh Survey of Wales 2022-08-04 NRW_DS108800 Coastal saltmarshes in the UK comprise of the upper, vegetated portions of intertidal mudflats, lying approximately between mean high water neap tides and mean high water spring tides. Saltmarshes are usually restricted to comparatively sheltered locations in five main physiographic situations: in estuaries, in saline lagoons, behind barrier islands, at the heads of sea lochs, and on beach plains. The development of saltmarsh vegetation is dependent on the presence of intertidal mudflats. Communities are additionally affected by differences in climate, the particle size of the sediment and, within estuaries, by decreasing salinity in the upper reaches. This National Vegetation Classification (NVC) Phase 2 project and corresponding datasets are a collation of mapped saltmarsh habitats across Wales. This data was collected to provide an overview of saltmarshes across Wales. In addition to this it has helped contribute towards the monitoring of Special Area of Conservation, which includes: Carmarthen Bay and Estuaries / Bae Caerfyrddin ac Aberoedd; Glannau Môn: Cors heli / Anglesey Coast: Saltmarsh; Pembrokeshire Marine / Sir Benfro Forol; Pen Llyn a`r Sarnau / Lleyn Peninsula and the Sarnau; Dee Estuary / Aber Dyfrdwy and Severn Estuary / Môr Hafren. The surveys were conducted between 1990 and 2003. The dataset has been extensively validated and verified. Data collected by trained personnel, digitised by contractors, validated by NRW KMG, corrections made by contractors, validated again by NRW KMG, corrections made in-house in conjunction with relevant salt marsh specialist. Coastal saltmarshes in the UK comprise of the upper, vegetated portions of intertidal mudflats, lying approximately between mean high water neap tides and mean high water spring tides. Saltmarshes are usually restricted to comparatively sheltered locations in five main physiographic situations: in estuaries, in saline lagoons, behind barrier islands, at the heads of sea lochs, and on beach plains. The development of saltmarsh vegetation is dependent on the presence of intertidal mudflats. Communities are additionally affected by differences in climate, the particle size of the sediment and, within estuaries, by decreasing salinity in the upper reaches. This National Vegetation Classification (NVC) Phase 2 project and corresponding datasets are a collation of mapped saltmarsh habitats across Wales. This data was collected to provide an overview of saltmarshes across Wales. In addition to this it has helped contribute towards the monitoring of Special Area of Conservation, which includes: Carmarthen Bay and Estuaries / Bae Caerfyrddin ac Aberoedd; Glannau Môn: Cors heli / Anglesey Coast: Saltmarsh; Pembrokeshire Marine / Sir Benfro Forol; Pen Llyn a`r Sarnau / Lleyn Peninsula and the Sarnau; Dee Estuary / Aber Dyfrdwy and Severn Estuary / Môr Hafren. The surveys were conducted between 1990 and 2003. The dataset has been extensively validated and verified. Data collected by trained personnel, digitised by contractors, validated by NRW KMG, corrections made by contractors, validated again by NRW KMG, corrections made in-house in conjunction with relevant salt marsh specialist. Natural Resources Wales (NRW) Maes-y-Ffynnon, Penrhosgarnedd, Bangor, Gwynedd, LL57 2DW, Wales enquiries@naturalresourceswales.gov.uk http://naturalresources.wales/?lang=en Natural Resources Wales (NRW) Maes-y-Ffynnon, Penrhosgarnedd, Bangor, Gwynedd, LL57 2DW, Wales enquiries@naturalresourceswales.gov.uk http://naturalresources.wales/?lang=en Various Enquiries Unit, Maes y Fynnon, Penrhosgarnedd, Bangor, Gwynedd, LL57 2DW enquiries@naturalresourceswales.gov.uk http://naturalresourceswales.gov.uk/splash?orig=/ Data Services Team Natural Resources Wales (NRW), Maes y Ffynnon, Penrhosgarnedd, Bangor, Gwynedd, LL57 2DW enquiries@naturalresourceswales.gov.uk http://naturalresourceswales.gov.uk/splash?orig=/ Habitats and biotopes GEMET - INSPIRE themes, version 1.0 GEMET - INSPIRE themes, version 1.0 2008-06-01 geonetwork.thesaurus.external.theme.httpinspireeceuropaeutheme-theme species inventory habitat surveys (habitat monitoring) habitat mapping Phase 2 Survey (Phase II) vegetation (see also specific types eg.coastal or heathland vegetation and vegetation surveys) saltmarsh (salt-marsh) (salt marsh) National Vegetation Classification (NVC) vegetation surveys (vegetation monitoring)(see also biologicalsurveys) vegetation classification NRW Thesaurus NRW Thesaurus 2024-06-13 geonetwork.thesaurus.local.theme.converted_nrw-keywords Habitat extent SeaDataNet Parameter Discovery Vocabulary SeaDataNet Parameter Discovery Vocabulary 2024-03-28 geonetwork.thesaurus.external.theme.rdf+xml Animals, Plants and Other Organisms (SMNR) Coastal Margins (SMNR) Sustainable Management of Natural Resources (SMNR) Sea and Coast (SMNR) Management Areas (SMNR) Soil and Land (SMNR) Soils (SMNR) Ecosystem (SMNR) Natural Resources (Incl. Features and Processes) (SMNR) NRW SMNR Keywords NRW SMNR Keywords 2024-06-19 geonetwork.thesaurus.local.theme.converted_nrw-smnr-keywords This dataset contains 'simple derived data' which is jointly owned by NRW and the Ordnance Survey in the form of polygon GIS tables. NRW may release, publish or disseminate these components freely, providing recipients are made aware of use restrictions (see below). Data not derived from OS products have no access or use restrictions. Third party recipients may reproduce, disseminate and re-use this data free of charge in any format or medium, provided they do so accurately, acknowledging both the source and NRW's copyright, and do not use it in a misleading context. To avoid using old information, we recommend that the latest version is obtained from the original source. no limitations © CNC/NRW and © Crown copyright. All rights reserved. Natural Resources Wales, AC0000849444 [2016]. © Hawlfraint y Goron. Cedwir pob hawl. Cyfoeth Naturiol Cymru AC0000849444 [2016] This dataset contains 'simple derived data' which is jointly owned by NRW and the Ordnance Survey in the form of polygon vector data- vegetation, site boundary and vegetation mosaic MapInfo tables. Third parties seeking to re-use this dataset require a NRW licence. It allows reproduction, dissemination and re-use in any format or medium but only for non-commercial purposes according to the terms and conditions of the Licence. Those seeking commercial re-use require a commercial licence available from the OS. Open Government Licence (OGL) © CNC/NRW and © Crown copyright. All rights reserved. Natural Resources Wales, AC0000849444 [2016]. © Hawlfraint y Goron. Cedwir pob hawl. Cyfoeth Naturiol Cymru AC0000849444 [2016] English environment boundaries biota Wales (WLS) -5.777741 -2.608865 51.240829 53.513061 SeaVoX Vertical Co-ordinate Coverages SeaVoX Vertical Co-ordinate Coverages 2013-02-05 creation inapplicable 1993-08-24 2003-08-06 Documents Each individual survey has a paper report- see separate metadata entries. [A] Species data held in paradox database (plans to transfer to Recorder in 2009/2010) [B] An all Wales collated GIS product including the following spatial information: - Vegetation polygons (ArcGIS) - Mosaic information (ArcGIS) - Site Boundaries (ArcGIS) - Survey Boundary (ArcGIS) - Quadrat points (ArcGIS) - Target Note points (ArcGIS) - Photo points (ArcGIS) - Vegetation NVC summaries (MapInfo Table) https://datamap.gov.wales/layergroups/geonode:nrw_phase_2_salt_marsh View and Download World Wide Web page https://datamap.gov.wales/capabilities/layergroup/3605/?access_token=i61nd1X0RwdwAgQrGW0sqAsWxBMiwx&ows_service=wms Web Service World Wide Web page 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 This dataset has not been assessed for conformance to the referenced INSPIRE regulation. false This dataset is one of a series of major Phase 2 lowland habitat surveys including former Countryside Council for Wales’ (CCW) in-house and commissioned surveys covering grassland, woodland, heathland, peatland and sand dunes. Dataset is a collation of 14 NRW commissioned NVC surveys carried out on saltmarshes across Wales. Individual surveys utilised standard NVC Phase 2 survey methodology and community definition follows the National Vegetation Classification. Habitats were mapped using GIS against either OS maps or aerial photographs. Target notes and quadrat species lists were compiled. This dataset is one of a series of major Phase 2 lowland habitat surveys including former Countryside Council for Wales’ (CCW) in-house and commissioned surveys covering grassland, woodland, heathland, peatland and sand dunes. Dataset is a collation of 14 NRW commissioned NVC surveys carried out on saltmarshes across Wales. Individual surveys utilised standard NVC Phase 2 survey methodology and community definition follows the National Vegetation Classification. Habitats were mapped using GIS against either OS maps or aerial photographs. Target notes and quadrat species lists were compiled.