Saltmarsh Features of the Conwy Estuary 2001

This dataset consists of the results from a National Vegetation Classification (NVC) survey used as a basis for community definition in the saltmarsh habitats of the North Conwy Estuary. The principal objective of the survey was to provide a suitable base for future monitoring and also as part of CCW's commitment to reporting on the suitability of the estuary description as a Site of Special Scientific Importance (SSSI) and inclusion into the Menai Strait and Conwy Bay possible Special Area of Conservation (pSAC).

Identification

Identifier
NRW_DS109888
Alternative Title
  • Nodweddion morfa heli Aber Afon Conwy
  • NVC Phase 2 survey of the Conwy Estuary 2001
Metadata Language
English
Lineage

Standard saltmarsh NVC survey methodology was used. Saltmarsh communities were identified by eye, supported by aerial photography, and mapped in the field onto 1:2,500 maps using the Ordnance Survey 1:10,000 Land Plan as a base map. Survey took place along transects, and boundaries were fixed using a hand held GPS to an accuracy of +/- 3m. Quadrats were recorded and species lists developed. Data collected by trained personnel, digitised by contractors, validated by NRW, corrections made by contractors, validated again by NRW, corrections made in-house in conjunction with relevant salt marsh specialist. NRW commissioned survey contributes to an NVC Saltmarsh survey collation (see 'part of' field).
Dataset Reference Date (Publication)
2002-12-31
Owner
  Natural Resources Wales (NRW)
Maes-y-Ffynnon, Penrhosgarnedd, Bangor, Gwynedd, LL57 2DW, Wales
http://naturalresources.wales/?lang=en
Originator
  Ecological Surveys (Bangor)
The School House, Canon Pyon, Hereford, Herefordshire, HR4 8PF
http://www.ecologicalsurveys.co.uk/
 

Extent

Extent

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

Format Type and Description
  • Geographic Information System ()

    Specification

    a) GIS products: Vegetation polygons (MapInfo Table), Site Boundaries (MapInfo Table) Survey Boundary (MapInfo Table), Quadrat locations (MapInfo Table), Vegetation NVC summaries (MapInfo Table). b) Florisitic tables in VESPAN and Microsoft Excel format c) Paper & Microsoft Word versions of report

 

Quality

Data quality

Quality Scope
Dataset
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

Standard saltmarsh NVC survey methodology was used. Saltmarsh communities were identified by eye, supported by aerial photography, and mapped in the field onto 1:2,500 maps using the Ordnance Survey 1:10,000 Land Plan as a base map. Survey took place along transects, and boundaries were fixed using a hand held GPS to an accuracy of +/- 3m. Quadrats were recorded and species lists developed. Data collected by trained personnel, digitised by contractors, validated by NRW, corrections made by contractors, validated again by NRW, corrections made in-house in conjunction with relevant salt marsh specialist. NRW commissioned survey contributes to an NVC Saltmarsh survey collation (see 'part of' field).
 

Keywords

Keywords

GEMET - INSPIRE themes, version 1.0
Type
Theme

Citation

Date (Publication)
2008-06-01
Code
geonetwork.thesaurus.external.theme.httpinspireeceuropaeutheme-theme

Keywords

NRW Thesaurus
  • Special Areas of Conservation (SAC) (see also Candidate Special Areas of Conservation cSAC)
  • geographical information systems (GIS)
  • saltmarsh (salt-marsh) (salt marsh)
  • National Vegetation Classification (NVC)
  • Conwy estuary
  • vegetation (see also specific types eg.coastal or heathland vegetation and vegetation surveys)
  • vegetation classification
  • vegetation surveys (vegetation monitoring)(see also biologicalsurveys)
Type
Theme

Citation

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

Keywords

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

Citation

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

Spatial Reference System

Code
British National Grid (EPSG::27700)
 

Content

Content Information

NRW Profile

Custom Elements

NRW Related Title

National vegetation classification survey : saltmarsh of the Conwy Estuary : September 2001
 

Constraints

Constraints

Limitations on Public Access and Use

Restriction type
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

Use constraints type
Other restrictions
Other constraints

© CNC/NRW and © Crown copyright [2002]. All rights reserved. Natural Resources Wales, AC0000849444. 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

File Identifier
4f4c4942-4343-5764-6473-313039383838 XML
Metadata Language
English
Parent Identifier
Phase 2 Saltmarsh Survey of Wales

NRW_DS108800
Resource type
Dataset
Metadata Date
2024-12-09T12:40:24.797Z
Metadata Standard Name
NRW
Metadata Standard Version

1.0

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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