Fluvial Audit of the River Wye and Tributaries

  • English
  • wel
  • All

This dataset consists of the results of a Fluvial Geomorphological Audit of the River Wye and it's Tributaries. The river Wye is one of the largest rivers in England and Wales, and supports a range of rare and threatened habitats and species. The river includes several Sites of Special Scientific Interest (SSSI). It is also designated as a Special Area of Conservation (SAC). The purpose of this data capture was to characterise the geomorphology of the watercourses surveyed and to identify key areas for monitoring, management and restoration, particularly in relation to the desired physical habitats for the SAC species. The area covered included 305 km of the River Wye and selected tributaries between Pant Mawr and Hay-on-Wye. Tributaries included Aran, Bachawy, Bachell Brook, Camddwr, Cletwr Brook, Clywedog Brook, Colwyn Brook, Duhonw, Dulas, Dulas Brook, Dulas Llynfi, Edw, Gwenlas Brook, Howey Brook, Ithon, Llaethydy Brook, Llymwynt Brook, Migrams Brook, Mithil Brook, Nant Bwch, Nant yr Offeiriad, rhiwiau Brook, Sgithwen Brook, and Triffrwd.

Identification

Dynodydd
Identifier
NRW_DS111860
Teitl Amgen
Alternative Title
  • Archwiliad afonol o lednentydd afon Gwy
Laith Metadata
Metadata Language
English
Lineage

The rivers included in the study were surveyed on foot. For assessment and analytical purposes, the streams were divided into reaches which show similar geomorphological characteristics. Data was collected with respect to the geomorphological features e.g. flow conditions, bed material and erosion. The data was collected with a detailed photographic record and developed onto a Geographical Information System (GIS) that provides access to visual, textual and photographic information based upon Ordnance Survey grid reference locations. Habitat suitability maps were produced for each designated feature.
Additional Information

The presence of invasive species was also recorded information for which can be found in the report.
Dyddiad cyfeirnod y set ddata (Cyhoeddiad)
Dataset Reference Date (Publication)
2007-07-31
Perchennog
Owner
  Countryside Council for Wales (CCW)
Countryside Council for Wales, Maes y Ffynnon, Penrhosgarnedd, Bangor, Gwynedd, LL57 2DW
http://naturalresourceswales.gov.uk/splash?orig=/
Perchennog
Owner
  Natural Resources Wales (NRW)
Maes-y-Ffynnon, Penrhosgarnedd, Bangor, Gwynedd, LL57 2DW, Wales
http://naturalresources.wales/?lang=en
Cychwynnwr
Originator
  Gifford and partners Ltd
 

Extent

Extent

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


 
 

Distribution

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

    Specification

    [A] Report: Microsoft Word and Adobe Portable Document Format versions of project report, GIS Metadata Report and PDF of sheet used during the fieldwork to assess sediment clast sizes and vegetation cover. [B] GIS Data: Bank Protection, Coarse Woody Debris, Embankments, Erosion, Geomorphological Reaches, Historical Changes, Habitat Sustainability Analysis (HAS), Photos, Sediment Sources (linear feature), Sediment Sources (point feature), Sediment Storage (Area), Structures and Terraces. [C] Photos: Field photos (JPEG format) taken on site and a spreadsheet (River_Wye_Photos_with_XY.xls) summarising the geographic location (easting and northing) for each image. Images are hyperlinked in relevant GIS layer. [D] Habitat Suitability Analysis spreadsheets: HAS.XLS and HAS_Values.XLS.

 

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 rivers included in the study were surveyed on foot. For assessment and analytical purposes, the streams were divided into reaches which show similar geomorphological characteristics. Data was collected with respect to the geomorphological features e.g. flow conditions, bed material and erosion. The data was collected with a detailed photographic record and developed onto a Geographical Information System (GIS) that provides access to visual, textual and photographic information based upon Ordnance Survey grid reference locations. Habitat suitability maps were produced for each designated feature.
 

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
  • fluvial
  • fluvial geomorphology
  • fluvial processes
  • River Wye (Afon Gwy)
  • River Wye Tributaries
  • rivers (see also specific river names)
  • Special Areas of Conservation (SAC) (see also Candidate Special Areas of Conservation cSAC)
  • Site of Special Scientific Interest (SSSI)
  • geomorphology
  • marine and freshwater inventory
Math
Type
Theme
Theme

Dyfyniad
Citation

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

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

Fluvial audit of the River Wye and tributaries : geomorphological assessment
 

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. There are no access restrictions on this data. However there are third party use restrictions. This dataset contains 'simple derived data' in the form of river bank MapInfo.Tab layers (erosion, bank protection, embankement etc).
 

Use Constraints

Cyfyngiadau Defnyddio
Use constraints type
Other restrictions
Other restrictions
Other constraints

© CNC/NRW and © Crown copyright. All rights reserved. Natural Resources Wales, AC0000849444 Data may be re-used under provision and in line with the terms of a NRW licence. Those seeking commercial re-use require a commercial licence available from the OS.
 

Attribution Statement

Other constraints

NRW Conditional
 
 
 

Metadata

Metadata

Dynodydd Ffeil
File Identifier
4f4c4942-4343-5764-6473-313131383630 XML
Laith Metadata
Metadata Language
English
Parent Identifier
Fluvial Audits of Welsh River Systems

NRW_DS101833
Math o adnodd
Resource type
Dataset
Dataset
Dyddiad Metadata
Metadata Date
2024-05-30T15:37:43.728Z
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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