Nutrient Review - Risk Maps
Surface water and groundwater risk maps created by combining current and future interpolated nitrate and phosphate surface water and concentrations and the nitrate and phosphate leachate concentrations. Each component was assessed using a scoring and weighting system, and the scores were combined to generate a national risk map for nitrate at a scale of 1 km2.
- Dull adnabod
- Rhychwant
- Dosbarthiad
- Ansawdd
- Allweddeiriau
- System Cyfeirio Gofodol
- Cynnwys
- Cyfyngiadau
- Cynnal a chadw
- Metadata
Dull adnabod
- Dynodydd
- NRW_DS125602
- Teitl Amgen
-
- Surface Water Nitrate Risk Map.lyr
- Laith Metadata
- English
- Datganiad
-
Broadly following the approach used for the 2016 review of groundwater NVZs, a GIS-based risk model was used to determine potential risks to surface and groundwater from phosphate/nitrate. The risk model combines national datasets of current and future phosphate/nitrate surface and groundwater concentrations and the leaching models. Each component is assessed using a scoring and weighting system, and the scores are combined to generate a national risk map for phosphate at a 1 km square grid scale. Areas with higher scores indicate potential risk to groundwater from phosphate. The risk model comprises three components derived using national monitoring and land use datasets. Each component was given a score and weightings were applied to these scores. The weighted scores were then combined to yield an overall risk score indicating the strength of evidence that the surface and groundwater is polluted by phosphate/nitrate from modelled land use diffuse sources. The scores and weighting applied are similar to those used for the 2016 review of groundwater NVZs. The GIS model was used to divide Wales into 1km grid squares. The weighted scores for each of the risk components were assigned to each grid square and summed to provide a total risk score to produce a national risk map for phosphate/nitrate.
- Categori pwnc
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- Environment
Rhychwant
Rhychwant
- Hyd
- Wales (WLS)
))
Dosbarthiad
- Fformat - Math a Disgrifiad
-
-
Geographic Information System
Geographic Information System
()
- Math
-
ESRI Feature Class
-
Geographic Information System
Geographic Information System
()
Ansawdd
Ansawdd Data
- Cwmpas Ansawdd
- Dataset
- Datganiad
-
Broadly following the approach used for the 2016 review of groundwater NVZs, a GIS-based risk model was used to determine potential risks to surface and groundwater from phosphate/nitrate. The risk model combines national datasets of current and future phosphate/nitrate surface and groundwater concentrations and the leaching models. Each component is assessed using a scoring and weighting system, and the scores are combined to generate a national risk map for phosphate at a 1 km square grid scale. Areas with higher scores indicate potential risk to groundwater from phosphate. The risk model comprises three components derived using national monitoring and land use datasets. Each component was given a score and weightings were applied to these scores. The weighted scores were then combined to yield an overall risk score indicating the strength of evidence that the surface and groundwater is polluted by phosphate/nitrate from modelled land use diffuse sources. The scores and weighting applied are similar to those used for the 2016 review of groundwater NVZs. The GIS model was used to divide Wales into 1km grid squares. The weighted scores for each of the risk components were assigned to each grid square and summed to provide a total risk score to produce a national risk map for phosphate/nitrate.
Allweddeiriau
Allweddair
- Math
- Theme
Dyfyniad
- Dyddiad (Cyhoeddiad)
- 2008-06-01
Allweddair
- NRW Thesaurus
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- nitrates (nitrogen)
- phosphates
- nutrients
- phosphorus
- nutrient pollution
- Nitrate directive
- Math
- Theme
Dyfyniad
- Dyddiad (Cyhoeddiad)
- 2023-12-31
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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Restriction on this data have not been fully determined, however a preliminary assessment indicate part of this dataset is sensitive, and access may be restricted under relevant legislation. NRW may NOT release, publish or disseminate the sensitive data
Defnyddiwch gyfyngiadau
- Cyfyngiadau Defnyddio
- Other restrictions
- Cyfyngiadau eraill
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© CNC/NRW NRW does NOT grant permission to third parties to re-use or disseminate the full dataset. Subject to a full assessment, a redacted version of the data may be re-used under provision and in line with the terms of a NRW licence.
Metadata
Metadata
- Dynodydd Ffeil
- 4f4c4942-4343-5764-6473-313235363032 XML
- Laith Metadata
- English
- Dynodydd Rhiant
-
Nutrients Review 2023
NRW_DS125601
- Math o adnodd
- Dataset
- Dyddiad Metadata
- 2024-05-30T15:37:27.265Z
- Enw Safonol Metadata
- NRW
- Fersiwn Metadata
-
1.0