Understanding the likely scale of deterioration of Marine Protected Area features due to coastal squeeze: Part 2
To complete the coastal squeeze assessments a series of geospatial layers and accompanying spreadsheets were created as part of a project to understand the likely scale of deterioration of Marine Protected Area features due to coastal squeeze.
Coastal squeeze and natural squeeze was calculated for habitats at a national scale for the whole of the Welsh coastline, as well as for smaller delineations of the coastline. The potential scale of habitat deterioration due to coastal squeeze was then reported:
· Nationally;
· Against individual MPAs; and
· Against MPA designations amalgamated across Wales:
o SACs;
o SSSIs;
o SPAs; and
o Ramsar sites.
Coastal squeeze has been assessed for three timeframes (epochs):
· 2025 to 2055 (30 years) – Equivalent to SMP2 medium-term epoch;
· 2055 to 2105 (50 years) – Equivalent to SMP2 long-term epoch; and
· 2105 to 2155 (50 years) – New long-term epoch.
- Identification
- Extent
- Distribution
- Quality
- Keywords
- Spatial Reference System
- Content
- Constraints
- Maintenance
- Metadata
Identification
- Identifier
- NRW_DS161284
- Alternative Title
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- Metadata Language
- English
- Lineage
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The project applies standard predictive hypsometric analysis to calculate the changes in tidal frame around the Welsh coast as a result of SLR. These tidal frames are calculated from a newly created national Digital Terrain Model (DTM). Present-day habitat maps are then used to provide a more site-specific assessment of the habitats present, and hence how they may change over time. Further information on the habitat datalayers used in the assessment can be found in the Volume 1 Report.
The coastal squeeze and natural squeeze assessments are then undertaken. The quantification of coastal squeeze and natural squeeze is calculated:
· Nationally;
· Against SMP2 Policy Unit (PU); and
· Against individual Assessment Units.
In each case, coastal squeeze and natural squeeze is calculated for defined Habitat Groups (see Section 2.2). An assessment of coastal and natural squeeze across the MPA network has then been undertaken. The potential scale of deterioration of MPAs due to coastal squeeze is reported against:
· Individual MPAs; and
· MPA designations amalgamated across Wales:
o SACs;
o SSSIs;
o SPAs; and
o Ramsar sites.
The derived data products are vast and complex and to help users assess and interpret the data they should review section 6 of the accompanying report which will highlight frequently encountered observations.
- Additional Information
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Oaten J, Finch D, Frost N 2024. Understanding the likely scale of deterioration of Marine Protected Area features due to coastal squeeze: Volume 2 – Results & Discussion. NRW Evidence Report No: 789, 110pp, Natural Resources Wales, Bangor
- Dataset Reference Date (Publication)
- 2026-04-01
Temporal Extent
- Begin date
- 2023-08-31
- End date
- 2024-04-22
- Topic category
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- Environment
Extent
Extent
- Geographic Extent
- Wales (WLS)
))
Distribution
Distribution
- Format Type and Description
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Delimited
(
Unknown
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- Specification
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Microsoft Excel Outputs
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Documents
(
Unknown
)
- Specification
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Evidence Report in MS Word or PDF Format
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Geographic Information System
(
)
- Specification
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ESRI Feature Class
-
Delimited
(
Unknown
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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
-
The project applies standard predictive hypsometric analysis to calculate the changes in tidal frame around the Welsh coast as a result of SLR. These tidal frames are calculated from a newly created national Digital Terrain Model (DTM). Present-day habitat maps are then used to provide a more site-specific assessment of the habitats present, and hence how they may change over time. Further information on the habitat datalayers used in the assessment can be found in the Volume 1 Report.
The coastal squeeze and natural squeeze assessments are then undertaken. The quantification of coastal squeeze and natural squeeze is calculated:
· Nationally;
· Against SMP2 Policy Unit (PU); and
· Against individual Assessment Units.
In each case, coastal squeeze and natural squeeze is calculated for defined Habitat Groups (see Section 2.2). An assessment of coastal and natural squeeze across the MPA network has then been undertaken. The potential scale of deterioration of MPAs due to coastal squeeze is reported against:
· Individual MPAs; and
· MPA designations amalgamated across Wales:
o SACs;
o SSSIs;
o SPAs; and
o Ramsar sites.
The derived data products are vast and complex and to help users assess and interpret the data they should review section 6 of the accompanying report which will highlight frequently encountered observations.
Keywords
Keywords
- Type
- Theme
Citation
- Date (Publication)
- 2008-06-01
Keywords
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NRW Thesaurus
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- coastal squeeze
- marine protected areas(marine consultation areas)(sensitive marine areas)seealso marine conservation&marine nature reserve
- Type
- Theme
Citation
- Date (Publication)
- 2026-03-04
Spatial Reference System
Content
Content Information
NRW Profile
Custom Elements
Constraints
Constraints
Limitations on Public Access and Use
- Restriction type
- Other restrictions
Access Constraints Directive
- Limitations
- noLimitations
Access Constraints Text
- Other constraints
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This data is comprised of a mixture of third party owned records and NRW records. NRW policy permits access to and release of this data under the same terms as its own data. 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 and UKHO. NRW owns the copyright of the collation, but the ownership of the records themselves rests with the originator. 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. Contains data derived from UKHO. All rights Reserved.
Licence
- Other constraints
- Open Government Licence