Intertidal Mapping Project (Updating Marine Intertidal Phase 1 Biotope Mapping Survey)
The Phase 1 Intertidal project was completed in 2005 and maps finalised (see metadata record 24333), however since 2005 selected of areas have been re-mapped as up-to-date information was required for casework and other needs. There is a need to incorporate these newly mapped areas with the original Intertidal data layer and make it available as the most up-to-date data source. A decision was made to only incorporate newly mapped areas or sites and not individual habitats, such as, Sabellaria reefs.
The purpose of this data capture was to update the Phase 1 Intertidal biotope and target note layers. From 2005 onwards for updates, but the original sites were mapped from April 1996. The methodology and the maps have undergone quality control independently, but the combined final output has not. The data available to the public under an Open Government Licence has some information redacted. An un-redacted version can be requested and may be provided under NRW licence.
- Identification
- Extent
- Distribution
- Quality
- Keywords
- Spatial Reference System
- Content
- Constraints
- Maintenance
- Metadata
Identification
- Identifier
- NRW_DS114453
- Alternative Title
-
- Phase 1 Intertidal.lyr
- Metadata Language
- English
- Lineage
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Sites or areas were mapped using standard Phase 1 methodologies. Data from these sites is collated with existing data as follows: a) Where the layers overlapped, the original data were cut out and the new data pasted in its place. This was done by cookie cutting using the newer data. Nodes were overlaid to ensure that all intersects had the necessary nodes. b) Where there were a number of slivers as a result of the cut and replace, these were removed and the adjacent polygons tidied up to abut properly. These adjustments were well inside the errors that can be attributed to the survey or digitizing errors (less than metre scale). Data processing notes are maintained for the resulting layers. The dataset builds on data collected for CCW Marine Intertidal Phase 1 project. metadata for the project can be viewed through metadata URI 24333.
- Dataset Reference Date (Publication)
- 2010-10-08
Extent
Extent
- Geographic Extent
- Wales (WLS)
))
Vertical Extent
- Medin Extent Keyword
-
benthic boundary layer
Distribution
- Format Type and Description
-
-
Geographic Information System
(
)
- Specification
-
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
-
Sites or areas were mapped using standard Phase 1 methodologies. Data from these sites is collated with existing data as follows: a) Where the layers overlapped, the original data were cut out and the new data pasted in its place. This was done by cookie cutting using the newer data. Nodes were overlaid to ensure that all intersects had the necessary nodes. b) Where there were a number of slivers as a result of the cut and replace, these were removed and the adjacent polygons tidied up to abut properly. These adjustments were well inside the errors that can be attributed to the survey or digitizing errors (less than metre scale). Data processing notes are maintained for the resulting layers. The dataset builds on data collected for CCW Marine Intertidal Phase 1 project. metadata for the project can be viewed through metadata URI 24333.
Keywords
Keywords
- Type
- Theme
Citation
- Date (Publication)
- 2008-06-01
Keywords
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NRW Thesaurus
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- intertidal
- Phase 1 Habitat Survey
- habitat mapping
- Type
- Theme
Citation
- Date (Publication)
- 2025-01-08
Keywords
-
SeaDataNet Parameter Discovery Vocabulary
- Type
- Theme
Citation
- Date (Publication)
- 2024-06-19
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
- no limitations
Access Constraints Text
- Other constraints
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Part of this dataset is also sensitive and restricted. The sensitive data is as follows; Ostrea edulis. Sensitive data must be kept confidential; general release, is not permitted due to risk of harm to the environment or third parties. Data is released under an OGL licence where sensitive records are removed or shown only at a coarser scale.
Use Constraints
- Use constraints type
- Other restrictions
- Other constraints
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© CNC/NRW All rights Reserved. Contains Ordnance Survey Data. Ordnance Survey Licence number AC0000849444. Crown Copyright and Database Right. Recipients may only re-use sensitive data under provision and in line with the terms of a NRW licence and NRWs guidance on Ecological data exempt from general release.
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.
Licence
- Other constraints
- NRW Conditional
Metadata
Metadata
- File Identifier
- 4f4c4942-4343-5764-6473-313134343533 XML
- Metadata Language
- English
- Parent Identifier
-
Marine Phase 1 Intertidal Habitat Survey
NRW_DS24333
- Resource type
- Dataset
- Metadata Date
- 2026-03-03T11:15:03.626Z
- Metadata Standard Name
- NRW
- Metadata Standard Version
-
1.0