Fluvial Audit of the River Wye and Tributaries
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
- Extent
- Distribution
- Quality
- Keywords
- Spatial Reference System
- Content
- Constraints
- Maintenance
- Metadata
Identification
- Identifier
- NRW_DS111860
- 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
- Dataset Reference Date (Publication)
- 2007-07-31
Temporal Extent
- Begin date
- 2006-01-01
- End date
- 2007-07-31
- Topic category
-
- Environment
- Inland waters
- Biota
Extent
Extent
- Geographic Extent
- POWYS - POWYS
- Geographic Extent
- Wales (WLS)
))
Distribution
Distribution
- Format Type and Description
-
-
Delimited
(
Unknown
)
- Specification
-
Excel spreadsheets, including the photo location spreadsheet and HAS spreadsheets.
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Image
(
Unknown
)
- Specification
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JPEG field photographs.
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Geographic Information System
(
Unknown
)
- Specification
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all the GIS layers listed (Bank Protection, Embankments, HAS, Sediment Sources, etc.).
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Documents
(
Unknown
)
- Specification
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Word reports, PDF reports, GIS Metadata Report, assessment sheets.
-
Delimited
(
Unknown
)
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
-
This dataset has not been assessed for conformance to the referenced INSPIRE regulation.
- 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
Keywords
- Type
- Theme
Citation
- Date (Publication)
- 2008-06-01
Keywords
-
NRW Thesaurus
-
- River Wye Tributaries
- rivers (see also specific river names)
- fluvial geomorphology
- fluvial
- Special Areas of Conservation (SAC) (see also Candidate Special Areas of Conservation cSAC)
- River Wye (Afon Gwy)
- fluvial processes
- marine and freshwater inventory
- coastal geomorphology
- Site of Special Scientific Interest (SSSI)
- Type
- Theme
Citation
- Date (Publication)
- 2026-08-27
Spatial Reference System
Content
Content Information
NRW Profile
Custom Elements
- NRW Related Title
-
Fluvial audit of the River Wye and tributaries : geomorphological assessment
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. 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
- Use constraints type
- 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
-
Contains Natural Resources Wales information © Natural Resources Wales and Database Right. All rights Reserved. Contains Ordnance Survey Data. Ordnance Survey Licence number AC0000849444. Crown Copyright and Database Right.
Licence
- Other constraints
- NRW Conditional
Metadata
Metadata
- File Identifier
- 4f4c4942-4343-5764-6473-313131383630 XML
- Metadata Language
- English
- Parent Identifier
-
Fluvial Audits of Welsh River Systems
NRW_DS101833
- Resource type
- Dataset
- Metadata Date
- 2026-09-30T09:12:40.276Z
- Metadata Standard Name
- NRW
- Metadata Standard Version
-
1.0