4f4c4942-4343-5764-6473-313231363733 English NRW_DS121668 Natural Resources Wales (NRW) Maes-y-Ffynnon, Penrhosgarnedd, Bangor, Gwynedd, LL57 2DW, Wales enquiries@naturalresourceswales.gov.uk http://naturalresources.wales/?lang=en 2025-12-24T10:04:18.947Z NRW 1.0 wel British National Grid (EPSG::27700) WINS Natural Flood Management: Opportunities for Enhancing Surface Roughness WINS Natural Flood Management: Opportunities for Enhancing Surface Roughness Rheolaeth Naturiol o Lifogydd: Cyfleoedd ar gyfer Gwella Garwedd Arwyneb SCCAN Natural Flood Management: Opportunities for Enhancing Surface Roughness 2018-04-01 NRW_DS121673 This dataset was created for the Welsh Information for Nature Based Solution or WINS project (Previously known as SCCAN) to identify opportunities to carry out land management interventions to increase ecosystem service delivery in a number of key policy areas. There is an accompanying User Guide to assist in the use of these datasets. A full list of datasets used and data limitations can be found in the project technical report. What the map shows: This map shows opportunities for enhancing surface roughness, for example by relaxing grazing pressure, restoring semi-natural habitat, increasing species diversity or through complete change in land use (e.g. woodland planting). Priority is given to areas that are well connected to the hydrological environment and/or currently have a low surface roughness. The opportunity spaces shown in the map are the areas that remain after the constraints have been applied. Habitats of high conservation value and high economic value have been considered a constraint, as in these areas it is unlikely to be possible or desirable to increase the surface roughness. The opportunity space on this map shows opportunities that remain after all constraints have been applied. This dataset was created for the Welsh Information for Nature Based Solution or WINS project (Previously known as SCCAN) to identify opportunities to carry out land management interventions to increase ecosystem service delivery in a number of key policy areas. There is an accompanying User Guide to assist in the use of these datasets. A full list of datasets used and data limitations can be found in the project technical report. What the map shows: This map shows opportunities for enhancing surface roughness, for example by relaxing grazing pressure, restoring semi-natural habitat, increasing species diversity or through complete change in land use (e.g. woodland planting). Priority is given to areas that are well connected to the hydrological environment and/or currently have a low surface roughness. The opportunity spaces shown in the map are the areas that remain after the constraints have been applied. Habitats of high conservation value and high economic value have been considered a constraint, as in these areas it is unlikely to be possible or desirable to increase the surface roughness. The opportunity space on this map shows opportunities that remain after all constraints have been applied. 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 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 Land use GEMET - INSPIRE themes, version 1.0 2008-06-01 geonetwork.thesaurus.external.theme.httpinspireeceuropaeutheme-theme SoNaRR Area Statement NRW Thesaurus 2025-01-08 geonetwork.thesaurus.local.theme.converted_nrw-keywords Ecosystem Services (SMNR) Sustainable Management of Natural Resources (SMNR) NRW SMNR Keywords 2024-06-26 geonetwork.thesaurus.local.theme.converted_nrw-smnr-keywords There are no access restrictions on this data. NRW may release, publish or disseminate it freely. no limitations © CNC/NRW Data may be re-used under the terms of the Open Government Licence providing it is done so, acknowledging both the source and NRW's copyright. It is the recipient's responsibility to ensure the data is fit for the intended purpose. Contains Natural Resources Wales information © Natural Resources Wales and Database Right. All rights Reserved. Open Government Licence 10 English planningCadastre society farming biota geoscientificInformation climatologyMeteorologyAtmosphere environment elevation imageryBaseMapsEarthCover inlandWaters SeaVoX Vertical Co-ordinate Coverages 2021-01-06 Wales (WLS) -5.777741 -2.608865 51.240829 53.513067 2017-09-01 2018-04-01 Data gaps and limitations: National Phase 1 data is likely out of date in many places. Surface roughness could be derived from more direct measures than habitat scoring Instead of using a coastal buffer, ideally all areas would be masked out that do not have any features downslope of them. Geographic Information System ESRI Feature Class 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 How the map has been created: The national Phase 1 habitat map was used to identify habitats where surface roughness could be enhanced through habitat restoration or where introducing a different type of habitat could enhance surface roughness. The network index, an output from the Scimap (Durham University, 2016) fine sediment risk model expressing how well connected an area of land is to the network of rivers and drainage channels, was used to identify areas where enhanced surface roughness would be disproportionally beneficial. Similarly, Phase 1 habitats have been used to approximate the current roughness of every piece of land. Opportunities were prioritised based on where the existing land cover class typically has low surface roughness, and/or the area was well connected to the wider water environment. Constraints for this map were based on the Phase 1 habitat map, showing where land of existing high value for biodiversity and land of high economic importance exist. Additionally, existing urban areas and areas within 500m of the coastline were excluded from the opportunity space, as measures taken this close to the coast are unlikely to deliver noticeable NFM benefits. This dataset was produced for NRW under contract by Environment Systems Ltd. How the map has been created: The national Phase 1 habitat map was used to identify habitats where surface roughness could be enhanced through habitat restoration or where introducing a different type of habitat could enhance surface roughness. The network index, an output from the Scimap (Durham University, 2016) fine sediment risk model expressing how well connected an area of land is to the network of rivers and drainage channels, was used to identify areas where enhanced surface roughness would be disproportionally beneficial. Similarly, Phase 1 habitats have been used to approximate the current roughness of every piece of land. Opportunities were prioritised based on where the existing land cover class typically has low surface roughness, and/or the area was well connected to the wider water environment. Constraints for this map were based on the Phase 1 habitat map, showing where land of existing high value for biodiversity and land of high economic importance exist. Additionally, existing urban areas and areas within 500m of the coastline were excluded from the opportunity space, as measures taken this close to the coast are unlikely to deliver noticeable NFM benefits. This dataset was produced for NRW under contract by Environment Systems Ltd.