Collated Saltmarsh Survey of Wales (1994 - 2004)

  • English
  • wel
  • All

This, now static, dataset was collected to monitoring the progress of saltmarsh development across Wales, between 1994 and 2002. The dataset comprises of a collation of biological data recorded across different saltmarsh environments. This dataset is now archived, as more up-to-date information is available about saltmarsh habitats across Wales. However this still forms an important baseline dataset in which to monitor the health and species richness across saltmarshes and overtime. This will help inform conservation management requirements for the important saltmarsh habitats. The more up-to-date surveys can be found in the following metadata entry: 114725 Priority Marine Habitats of Wales (coastal saltmarsh).

Identification

Dynodydd
Identifier
NRW_DS101871
Teitl Amgen
Alternative Title
  • Collated Saltmarsh Derived GIS Layer
  • Arolwg o Gorsydd Heli Cymru
Laith Metadata
Metadata Language
English
Lineage

The structure of this data layer was updated in 2011 as part of a project to develop a series of priority and protected spatial marine habitat layers. The survey methodology used to collect this dataset either followed the National Vegetation Classification (NVC) Phase 2 methodology or intertidal Phase 1 methodology. The habitats were mapped using GIS against either OS maps or Aerial photographs. The NVC Saltmarsh layer was identified as most accurate of the three layers collated and therefore forms the base of the collation. All polygons extracted from the Phase 1 Intertidal Saltmarsh data that intersect with the NVC polygons were erased. Where 2 NVC survey overlap the most recently surveyed is taken as the most accurate. All polygons from the 1:50,000 OS map that intersect with either the NVC Saltmarsh layer or the extracted Phase 1 Intertidal Saltmarsh were also erased.
Dyddiad cyfeirnod y set ddata (Cyhoeddiad)
Dataset Reference Date (Publication)
2004-12-31
Perchennog
Owner
  Natural Resources Wales (NRW)
Maes-y-Ffynnon, Penrhosgarnedd, Bangor, Gwynedd, LL57 2DW, Wales
http://naturalresources.wales/?lang=en
Cychwynnwr
Originator
  Countryside Council for Wales (CCW)
Countryside Council for Wales, Maes y Ffynnon, Penrhosgarnedd, Bangor, Gwynedd, LL57 2DW
http://naturalresourceswales.gov.uk/splash?orig=/
 

Extent

Extent

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


 

Vertical Extent

Medin Extent Keyword
benthic boundary layer
 
 

Distribution

Fformat - Math a Disgrifiad
Format Type and Description
  • Geographic Information System ()

    Specification

    [A] Mapinfo: Phase 2 quadrat data and polygons GIS

 

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
Degree
false
Lineage

The structure of this data layer was updated in 2011 as part of a project to develop a series of priority and protected spatial marine habitat layers. The survey methodology used to collect this dataset either followed the National Vegetation Classification (NVC) Phase 2 methodology or intertidal Phase 1 methodology. The habitats were mapped using GIS against either OS maps or Aerial photographs. The NVC Saltmarsh layer was identified as most accurate of the three layers collated and therefore forms the base of the collation. All polygons extracted from the Phase 1 Intertidal Saltmarsh data that intersect with the NVC polygons were erased. Where 2 NVC survey overlap the most recently surveyed is taken as the most accurate. All polygons from the 1:50,000 OS map that intersect with either the NVC Saltmarsh layer or the extracted Phase 1 Intertidal Saltmarsh were also erased.
 

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
  • saltmarsh (salt-marsh) (salt marsh)
  • saltmarsh ecology
  • saltmarsh vegetation
  • habitat mapping
  • habitat management
Math
Type
Theme
Theme

Dyfyniad
Citation

Dyddiad (Cyhoeddiad)
Date (Publication)
2023-12-31
Code
geonetwork.thesaurus.local.theme.converted_nrw-keywords

Allweddair
Keywords

SeaDataNet Parameter Discovery Vocabulary
  • Habitat extent
  • Habitat characterisation
Math
Type
Theme
Theme

Dyfyniad
Citation

Dyddiad (Adolygu)
Date (Revision)
2021-01-06
Code
geonetwork.thesaurus.external.theme.rdf+xml
 

Spatial Reference System

Code
British National Grid (EPSG::27700)
 

Content

Gwybodaeth Cynnwys
Content Information

Proffil CNC
NRW Profile

Elfennau CNC
Custom Elements

NRW Related Title

Priority Marine Habitats of Wales: Coastal Saltmarsh
 

Constraints

Constraints

Limitations on Public Access and Use

Math o Gyfyngiad
Restriction type
Other restrictions
Other restrictions
 

Access Constraints Directive

Limitations
no limitations
 

Access Constraints Text

Other constraints

The following data is considered OS derived data and is therefore jointly owned by NRW and the Ordnance Survey. NRW may release, publish or disseminate this data freely; providing recipients are made aware of use restrictions (See general use restrictions).
 

Use Constraints

Cyfyngiadau Defnyddio
Use constraints type
Other restrictions
Other restrictions
Other constraints

© CNC/NRW and © Crown copyright 2004. Third parties seeking to re-use this data require a Licence issued by NRW. It allows re-use, reproduction and dissemination 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.
 
 
 

Metadata

Metadata

Dynodydd Ffeil
File Identifier
4f4c4942-4343-5764-6473-313031383731 XML
Laith Metadata
Metadata Language
English
Math o adnodd
Resource type
Dataset
Dataset
Dyddiad Metadata
Metadata Date
2024-12-09T12:37:55.027Z
Enw Safonol Metadata
Metadata Standard Name
NRW
Fersiwn Metadata
Metadata Standard Version

1.0

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

Publishing Body

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