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.
- Identification
- Extent
- Distribution
- Quality
- Keywords
- Spatial Reference System
- Content
- Constraints
- Maintenance
- Metadata
Identification
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DynodyddIdentifier
- NRW_DS125602
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Teitl AmgenAlternative Title
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- Surface Water Nitrate Risk Map.lyr
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Laith MetadataMetadata Language
- English
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Lineage
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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.
Extent
Extent
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HydGeographic Extent
- Wales (WLS)
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Distribution
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Fformat - Math a DisgrifiadFormat Type and Description
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Geographic Information System
()
- Specification
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ESRI Feature Class
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Geographic Information System
()
Quality
Ansawdd Data
Data quality
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Cwmpas AnsawddQuality Scope
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DatasetDataset
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CydymffurfiadConformity
- 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
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This dataset has not been assessed for conformance to the referenced INSPIRE regulation.
- Degree
- false
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Lineage
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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.
Keywords
Allweddair
Keywords
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MathType
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ThemeTheme
Dyfyniad
Citation
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Dyddiad (Cyhoeddiad)Date (Publication)
- 2008-06-01
Allweddair
Keywords
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NRW Thesaurus
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- nitrates (nitrogen)
- phosphates
- nutrients
- phosphorus
- nutrient pollution
- Nitrate directive
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MathType
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ThemeTheme
Dyfyniad
Citation
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Dyddiad (Cyhoeddiad)Date (Publication)
- 2023-12-31
Spatial Reference System
Content
Gwybodaeth Cynnwys
Content Information
Proffil CNC
NRW Profile
Elfennau CNC
Custom Elements
Constraints
Constraints
Limitations on Public Access and Use
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Math o GyfyngiadRestriction type
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Other restrictionsOther restrictions
Access Constraints Directive
- Limitations
- no limitations
Access Constraints Text
- Other constraints
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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
Use Constraints
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Cyfyngiadau DefnyddioUse constraints type
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Other restrictionsOther restrictions
- Other constraints
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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
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Dynodydd FfeilFile Identifier
- 4f4c4942-4343-5764-6473-313235363032 XML
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Laith MetadataMetadata Language
- English
- Parent Identifier
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Nutrients Review 2023
NRW_DS125601
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Math o adnoddResource type
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DatasetDataset
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Dyddiad MetadataMetadata Date
- 2024-05-30T15:37:27.265Z
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Enw Safonol MetadataMetadata Standard Name
- NRW
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Fersiwn MetadataMetadata Standard Version
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1.0