4f4c4942-4343-5764-6473-313130313833 English NRW_DS101833 Natural Resources Wales (NRW) Maes-y-Ffynnon, Penrhosgarnedd, Bangor, Gwynedd, LL57 2DW, Wales enquiries@naturalresourceswales.gov.uk http://naturalresources.wales/?lang=en 2025-09-03T10:06:25.347Z NRW 1.0 wel British National Grid (EPSG::27700) Fluvial Audit of the River Dee Fluvial Audit of the River Dee Archwiliad afonol Afon Dyfrdwy 2005-12-31 NRW_DS110183 The results of a CCW commissioned Fluvial Geomorphological Audit of the River Dee to record the morphological features and to identify and understand the geomorphological processes which influence and control the channel activity and the morphological quality of the river system. The River Dee is a dynamic gravel-bed river with evidence of active channel migration in specific locations. The river is of high conservation status being designated a Special Area for Conservation by virtue of its Ranunculus community and in its lower reaches the river channel and its floodplain are designated as a Site of Special Scientific Interest for its morphological and physiographic features. This survey provides a baseline source for assessing site suitability by relating the presence or absence of morphological features to the condition parameters that are identified as habitat preferences for the components of the Ranunculus community. The purpose of this data capture was to develop an understanding of the dynamic geomorphology of the River Dee. The area used for this study included A 130 km length of the Main River of the River Dee, between the Bala Lake (Llyn Tegid) outflow and the Normal Tide Limit (NTL) at the Chester Weir (SJ 408659). The results of a CCW commissioned Fluvial Geomorphological Audit of the River Dee to record the morphological features and to identify and understand the geomorphological processes which influence and control the channel activity and the morphological quality of the river system. The River Dee is a dynamic gravel-bed river with evidence of active channel migration in specific locations. The river is of high conservation status being designated a Special Area for Conservation by virtue of its Ranunculus community and in its lower reaches the river channel and its floodplain are designated as a Site of Special Scientific Interest for its morphological and physiographic features. This survey provides a baseline source for assessing site suitability by relating the presence or absence of morphological features to the condition parameters that are identified as habitat preferences for the components of the Ranunculus community. The purpose of this data capture was to develop an understanding of the dynamic geomorphology of the River Dee. The area used for this study included A 130 km length of the Main River of the River Dee, between the Bala Lake (Llyn Tegid) outflow and the Normal Tide Limit (NTL) at the Chester Weir (SJ 408659). 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 GeoData Institute. University of Southampton GeoData Institute. University of Southampton, University of Southampton, Southampton , SO17 1BJ geodata@soton.ac.uk www.geodata.soton.ac.uk Natural Resources Wales (NRW) Maes-y-Ffynnon, Penrhosgarnedd, Bangor, Gwynedd, LL57 2DW, Wales enquiries@naturalresourceswales.gov.uk http://naturalresources.wales/?lang=en Hydrography GEMET - INSPIRE themes, version 1.0 2008-06-01 geonetwork.thesaurus.external.theme.httpinspireeceuropaeutheme-theme fluvial fluvial geomorphology marine and freshwater inventory fluvial processes coastal geomorphology rivers (see also specific river names) SSSI (Sites of Special Scientific Interest) Special Areas of Conservation (SAC) (see also Candidate Special Areas of Conservation cSAC) river Dee (afon Dyfrdwy) NRW Thesaurus 2025-01-08 geonetwork.thesaurus.local.theme.converted_nrw-keywords SeaDataNet Parameter Discovery Vocabulary 2024-06-19 geonetwork.thesaurus.external.theme.rdf+xml IPSV Subjects List 2020-11-18 geonetwork.thesaurus.external.theme.subjects NRW SMNR Keywords 2024-06-26 geonetwork.thesaurus.local.theme.converted_nrw-smnr-keywords 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. no limitations © 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. English environment inlandWaters biota SeaVoX Vertical Co-ordinate Coverages 2021-01-06 POWYS - POWYS GWYNEDD - GWYNEDD SIR Y FFLINT - FLINTSHIRE WRECSAM - WREXHAM CONWY - CONWY Wales (WLS) -3.95005513 -2.59374564 52.72380216 53.21389134 2004-01-01 2005-12-31 Fluvial audit of the River Dee Documents [A] Dee timechart and Final report ( Microsoft Word) [B] Final report (PDF and Microsoft Word) [C] DeeData Access Database [D] Field Data in Map Info Format [E] Access Data in Map Info Format [F] Field Photographs JPEG [G] Geological Data in Map Info Format [H] Historical information in Map Info Format [I] River, Canal and Reservoir locations in Map Info Format [J] Location of Files .csv format [K] Hotlinked Photographs in Map Info Format 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 The Fluvial Audit (FA) was conducted following the R+D 661 approach, which uses contemporary (field survey) and historic (archive desk study) data collection methods to gain a comprehensive understanding of the river system. The Fluvial Audit (FA) was conducted following the R+D 661 approach, which uses contemporary (field survey) and historic (archive desk study) data collection methods to gain a comprehensive understanding of the river system.