CuRVe Condition SACs
This dataset provides a spatial representation of the condition of Special Areas of Conservation (SACs) in Wales, developed as part of the CuRVe project. SACs are among the most extensively monitored conservation designations in Wales due to European reporting requirements, providing one of the few sources of directly measured habitat condition data derived from field survey and assessment. The dataset shows the percentage of SAC features assessed as being in favourable condition within each area. Areas outside SAC boundaries have a NoData value. The dataset was produced to contribute to the Condition attribute within the CuRVe assessment framework.
- Identification
- Extent
- Distribution
- Quality
- Keywords
- Spatial Reference System
- Content
- Constraints
- Maintenance
- Metadata
Identification
- Identifier
- NRW_DS124770
- Metadata Language
- English
- Lineage
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The dataset was derived from NRW's SAC condition assessment records. To maximise spatial coverage, condition assessments from all available reporting rounds recorded within NRW's SAC condition spreadsheet were consolidated, including first-round, second-round, third-round and most recent assessments. For each SAC feature, the most recent available assessment was used. Where no assessment was available in the latest reporting round, the most recent preceding assessment was selected.
As SACs are typically designated for multiple qualifying features that are not spatially recorded separately, feature-level assessments were summarised to site level. For each SAC, the percentage of assessed features recorded as being in favourable condition was calculated. Features without an available assessment were excluded from the calculation.
The resulting site-level condition values were joined to the spatial SAC boundary dataset. Values were then summarised within reporting squares by calculating an area-weighted average of the favourable-condition percentages of all SACs intersecting each reporting square. Areas that do not contain SACs were assigned a NoData value. Full details of the methodology are provided in the associated project report (see Additional Information).
- Additional Information
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Naumann, E.-K., Medcalf, K., 2020. Current relative value (CuRVe) map atlas for ecosystem resilience in Wales. NRW Natural Resources Wales report series, Report No: 415, 88pp, Publisher, Place of publication.
- Dataset Reference Date (Publication)
- 2020-04-27
Temporal Extent
- Begin date
- 2020-03-01
- End date
- 2020-04-27
- Topic category
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- Environment
Extent
Extent
- Geographic Extent
- Wales (WLS)
))
Distribution
- Format Type and Description
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Geographic Information System
(
)
- Specification
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Arcmap feature class
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Geographic Information System
(
)
Quality
Data quality
- Quality Scope
- Dataset
- Conformity
- 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
- Lineage
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The dataset was derived from NRW's SAC condition assessment records. To maximise spatial coverage, condition assessments from all available reporting rounds recorded within NRW's SAC condition spreadsheet were consolidated, including first-round, second-round, third-round and most recent assessments. For each SAC feature, the most recent available assessment was used. Where no assessment was available in the latest reporting round, the most recent preceding assessment was selected.
As SACs are typically designated for multiple qualifying features that are not spatially recorded separately, feature-level assessments were summarised to site level. For each SAC, the percentage of assessed features recorded as being in favourable condition was calculated. Features without an available assessment were excluded from the calculation.
The resulting site-level condition values were joined to the spatial SAC boundary dataset. Values were then summarised within reporting squares by calculating an area-weighted average of the favourable-condition percentages of all SACs intersecting each reporting square. Areas that do not contain SACs were assigned a NoData value. Full details of the methodology are provided in the associated project report (see Additional Information).
Keywords
Keywords
- Type
- Theme
Citation
- Date (Publication)
- 2008-06-01
Keywords
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NRW Thesaurus
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- ecological connectivity
- Type
- Theme
Citation
- Date (Publication)
- 2026-08-27
Keywords
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IPSV Subjects List
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- Biodiversity
- Type
- Theme
Citation
- Date (Publication)
- 2020-11-18
Spatial Reference System
Content
Content Information
NRW Profile
Custom Elements
- NRW Related Title
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Current Relative Value (CuRVe) Map Atlas for Ecosystem Resilience in Wales
Constraints
Constraints
Limitations on Public Access and Use
- Restriction type
- Other restrictions
Access Constraints Directive
- Limitations
- no limitations
Access Constraints Text
- Other constraints
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There are no access restrictions on this data. NRW may release, publish or disseminate it freely.
Use Constraints
- Use constraints type
- Other restrictions
- Other constraints
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© 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.
Attribution Statement
- Other constraints
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Contains Natural Resources Wales information © Natural Resources Wales and Database Right. All rights Reserved. Contains Ordnance Survey Data. Ordnance Survey Licence number AC0000849444. Crown Copyright and Database Right. Contains data supplied by Natural Environment Research Council.
Licence
- Other constraints
- Open Government Licence
Metadata
Metadata
- File Identifier
- 4f4c4942-4343-5764-6473-313234373730 XML
- Metadata Language
- English
- Parent Identifier
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Current Relative Value of ecosystem resilience (CuRVe)
NRW_DS124799
- Resource type
- Dataset
- Metadata Date
- 2026-10-08T14:32:25.463Z
- Metadata Standard Name
- NRW
- Metadata Standard Version
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1.0