Working with Natural Processes (WWNP) in Wales: Runoff Attenuation Features 3.3% AEP
Runoff Attenuation Features Potential is our best estimate of locations of high flow accumulation across the land surface or in smaller channels, where it may be possible to temporarily store water and attenuate flooding during high flows. The dataset is designed to support signposting of areas to target enhanced storage. It is based upon the Risk of Flooding from Surface Water datasets and identifies areas of high flow accumulations for the 3.3% Annual Exceedance Probability surface water maps. The areas of ponding or accumulation are between 100 and 5000 metres squared, and have been tagged where they fall on an area of slope steeper than 6% as gully blocking opportunities. All the potential areas have been constrained so that they are not in urban areas or on roads, rails or canals.
- Dull adnabod
- Rhychwant
- Dosbarthiad
- Ansawdd
- Allweddeiriau
- System Cyfeirio Gofodol
- Cynnwys
- Cyfyngiadau
- Cynnal a chadw
- Metadata
Dull adnabod
- Dynodydd
- NRW_DS121363
- Teitl Amgen
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- Nodweddion Arafu Dŵr Ffo 3.3% AEP WWNP - Cymru
- WWNP Runoff Attenuation Features 3.3% AEP - Wales
- Laith Metadata
- English
- Datganiad
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The data does not does not provide information on design, which may need to consider issues such as drain-down between flood events. It is important to note that land ownership and change to flood risk have not been considered. Locations identified may have more recent building or land use than available. Further information on the Working with Natural Processes project, including a mapping user guide, can be found in the reports published here: https://www.gov.uk/government/publications/working-with-natural-processes-to-reduce-flood-risk JBA Consulting carried out the contract.
- Dyddiad cyfeirnod y set ddata (Cyhoeddiad)
- 2018-03-12
Ystod amser
- Dyddiad cychwyn
- 2018-01-01
- Dyddiad gorffen
- 2018-03-12
- Categori pwnc
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- Environment
Rhychwant
Rhychwant
- Hyd
- Wales (WLS)
))
Maint Fertigol
- Maint allweddair MEDIN
Dosbarthiad
Dosbarthiad
- Fformat - Math a Disgrifiad
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-
Geographic Information System
Geographic Information System
()
- Math
-
ESRIS feature class
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Geographic Information System
Geographic Information System
()
- Lleolwr Adnoddau
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View and Download Data
World Wide Web page
- Lleolwr Adnoddau
-
Web Mapping Service
World Wide Web page
Ansawdd
Ansawdd Data
- Cwmpas Ansawdd
- Dataset
- Datganiad
-
The data does not does not provide information on design, which may need to consider issues such as drain-down between flood events. It is important to note that land ownership and change to flood risk have not been considered. Locations identified may have more recent building or land use than available. Further information on the Working with Natural Processes project, including a mapping user guide, can be found in the reports published here: https://www.gov.uk/government/publications/working-with-natural-processes-to-reduce-flood-risk JBA Consulting carried out the contract.
Allweddeiriau
Allweddair
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NRW Thesaurus
-
- woodland (woodlands)
- Math
- Theme
Dyfyniad
- Dyddiad (Cyhoeddiad)
- 2024-04-09
System Cyfeirio Gofodol
Cynnwys
Gwybodaeth Cynnwys
Proffil CNC
Elfennau CNC
Cyfyngiadau
Cyfyngiadau
Cyfyngiadau ar Fynediad a Defnydd Cyhoeddus
- Math o Gyfyngiad
- Other restrictions
Cyfarwyddeb Cyfyngiadau Mynediad
- Cyfyngiadau
- no limitations
Testun cyfyngiadau mynediad
- Cyfyngiadau eraill
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There are no access restrictions on this data. NRW may release, publish or disseminate it freely.
Defnyddiwch gyfyngiadau
- Cyfyngiadau Defnyddio
- Other restrictions
- Cyfyngiadau eraill
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© CNC/NRW. Some features of this information are based on digital spatial data licensed from the Centre for Ecology & Hydrology © NERC (CEH). 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.
Datganiad Priodoli
- Cyfyngiadau eraill
- Open Government Licence (OGL)
Math o Drwydded
- Cyfyngiadau eraill
- Open Government Licence (OGL)
Metadata
Metadata
- Dynodydd Ffeil
- 4f4c4942-4343-5764-6473-313231333633 XML
- Laith Metadata
- English
- Dynodydd Rhiant
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Working with Natural Processes (WWNP) in Wales
NRW_DS121231
- Math o adnodd
- Dataset
- Dyddiad Metadata
- 2024-05-31T09:17:48.325Z
- Enw Safonol Metadata
- NRW
- Fersiwn Metadata
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1.0