© OpenStreetMap contributors
- Add External Layer
- Upload Shapefile
- Layer Tutorial
- Close
Use the checkbox () to show or hide a layer.
Use the radio buttons () to select a layer to use with the identify function.
- Layers
- Opacity
Available layers
(ctrl+c)
Search for marine data across UK organisations
- API
- How-To
- About
- Contact MEDIN
- Share
Metadata: 2013-2014, HR Wallingford, Greater Gabbard, Post-Installation Scour Assessment
Abstract:
SSE Offshore Wind Generation requested HR Wallingford to perform a scour review based on the 2013 inter-array cable survey data at the Greater Gabbard Offshore Wind Farm (OWF). The survey data was assessed at every turbine location to provide descriptive scour parameters and to provide a baseline description for future asset management. As part of the existing licence agreement with the Marine Management Organisation, SSE is required to perform yearly (for up to three years) high-resolution swath-bathymetry surveys of the OWF cable route in order to assess the extent of any changes in morphology relative to the pre-construction baseline survey. HR Wallingford has previously investigated whether apparent magnitude of seabed movements observed in the 2013 survey data had a physical basis or were attributable to inaccuracies and errors in surveying and/or GPS positioning. The results of this study demonstrated that the 2013 survey data was subject to a total vertical uncertainty of ±0.35 m. The total vertical uncertainty (TVU) is defined by the International Hydrographic Organisation (2008) as that component of the total propagated uncertainty (TPU) in the vertical dimension, where TPU is the result of uncertainty propagation, when all contributing measurement uncertainties, both random and systematic, have been included in the propagation. The report presented analysis of bed level movements across the wind farm array cable routes. The current report evaluates the foundation scour development using the same data.
Data holder:
The Crown Estate
| Other details | ||
| Internal code | Internally assigned metadata identifier | 19197 |
| Title | The title is used to provide a brief and precise description of the dataset such as 'Date', 'Originating organisation/programme', 'Location' and 'Type of survey'. All acronyms and abbreviations should be reproduced in full. | 2013-2014, HR Wallingford, Greater Gabbard, Post-Installation Scour Assessment |
| Alternative title | The purpose of alternative title is to record any additional names by which the dataset may be known. | Post-Installation Scour Assessment |
| File Identifier | The File Identifier is a code, preferably a GUID, that is globally unique and remains with the same metadata record even if the record is edited or transferred between portals or tools. | 6ccb942d-60a5-49e0-9d4c-ae41d6d109a7 |
| Resource Identifier | This is the code assigned by the data owner. | TCE-438 |
| Resource type | The resource type will likely be a dataset but could also be a series (collection of datasets with a common specification) or a service. | series |
| Start date | This describes the date the resource starts. This may only be the year if month and day are not known | 2013-11-28 |
| End date | This describes the date the resource ends. This may only be the year if month and day are not known | 2014-06-19 |
| Frequency of updates | This describes the frequency with which the resource is modified or updated i.e. a monitoring programme that samples once per year has a frequency that is described as 'annually'. | asNeeded |
| Abstract | The abstract provides a clear and brief statement of the content of the resource. | SSE Offshore Wind Generation requested HR Wallingford to perform a scour review based on the 2013 inter-array cable survey data at the Greater Gabbard Offshore Wind Farm (OWF). The survey data was assessed at every turbine location to provide descriptive scour parameters and to provide a baseline description for future asset management. As part of the existing licence agreement with the Marine Management Organisation, SSE is required to perform yearly (for up to three years) high-resolution swath-bathymetry surveys of the OWF cable route in order to assess the extent of any changes in morphology relative to the pre-construction baseline survey. HR Wallingford has previously investigated whether apparent magnitude of seabed movements observed in the 2013 survey data had a physical basis or were attributable to inaccuracies and errors in surveying and/or GPS positioning. The results of this study demonstrated that the 2013 survey data was subject to a total vertical uncertainty of ±0.35 m. The total vertical uncertainty (TVU) is defined by the International Hydrographic Organisation (2008) as that component of the total propagated uncertainty (TPU) in the vertical dimension, where TPU is the result of uncertainty propagation, when all contributing measurement uncertainties, both random and systematic, have been included in the propagation. The report presented analysis of bed level movements across the wind farm array cable routes. The current report evaluates the foundation scour development using the same data. |
| Lineage | Lineage includes the background information, history of the sources of data, data quality statements and methods. | All data subsequently employed for analysis have been processed to provide a consistent projection and vertical datum. Data is plotted to a common coordinate system and datum (WGS 84, UTM Zone 31N and LAT based on VORF) and analysed using ArcGIS. EBR5209-RT001-R02-00_Validation Of 2013 Bathymetry Survey Data EBR5209-RT003-R03-00_Post-Installation Scour Assessment (2013 Survey) EBR5209-RT004-R02-00_Scour assesment based on first annual survey (2013) EBR5209-RT005-R02-00_Substation Scour Review EBR5209GGOWFMay2013AppendixBGISIG EBR5209GGOWFMay2013AppendixCGISGA |
| Related keywords | ||
| Keyword | General subject area(s) associated with the resource, uses multiple controlled vocabularies | Side-scan sonar |
| General subject area(s) associated with the resource, uses multiple controlled vocabularies | Geotechnics | |
| General subject area(s) associated with the resource, uses multiple controlled vocabularies | Bathymetry and Elevation | |
| General subject area(s) associated with the resource, uses multiple controlled vocabularies | Horizontal velocity of the water column (currents) | |
| General subject area(s) associated with the resource, uses multiple controlled vocabularies | Post-Construction monitoring | |
| General subject area(s) associated with the resource, uses multiple controlled vocabularies | Renewable Energy Lease area | |
| General subject area(s) associated with the resource, uses multiple controlled vocabularies | Elevation | |
| Geographical coverage | ||
| North | The northern-most limit of the data resource in decimal degrees | 51.981616 |
| East | The eastern-most limit of the data resource in decimal degrees | 2.023934 |
| South | The southern-most limit of the data resource in decimal degrees | 51.730637 |
| West | The western-most limit of the data resource in decimal degrees | 1.831959 |
| Responsible organisations | ||
| Role | The point of contact is person or organisation with responsibility for the creation and maintenance of the metadata for the resource. | pointOfContact |
| Organisation name | SSE Renewables | |
| Phone | +44 (0)141 226 8916 | |
| info@sserenewables.com | ||
| Role | The custodian is the person or organisation that accepts responsibility for the resource and ensures appropriate care and maintenance. If a dataset has been lodged with a Data Archive Centre for maintenance then this organisation is be entered here. | custodian |
| Organisation name | The Crown Estate | |
| Phone | +44 020 7851 5000 | |
| enquiries@thecrownestate.co.uk | ||
| Role | The originator is the person or organisation who created, collected or produced the resource. | originator |
| Organisation name | HR Wallingford Group Ltd. | |
| Phone | +44 (0) 1491 835381 | |
| info@hrwallingford.co.uk | ||
| Role | The distributor is the person or organisation that distributes the resource. | distributor |
| Organisation name | The Crown Estate | |
| Phone | +44 020 7851 5000 | |
| enquiries@thecrownestate.co.uk | ||
| Role | The owner is the person or organisation that owns the resource. | owner |
| Organisation name | RWE Renewables UK Swindon Limited | |
| support@rwe.com | ||
| Resource locators | ||
| Locator URL | Web address (URL) that links to the resource | https://www.marinedataexchange.co.uk/details/TCE-438/summary |
| Web address (URL) that links to the resource | https://www.marinedataexchange.co.uk | |
| Dataset constraints | ||
| 20.1 Limitations on Public Access - Access constraints | This states `otherRestrictions` from ISO vocabulary RestrictionCode and is an INSPIRE/GEMINI requirement. | otherRestrictions |
| 20.2 Limitations on Public Access - Other constraints | There will be no limitations when published on the Marine Data Exchange | |
| 21.1 Conditions for Access and Use - Use constraints | This states `otherRestrictions` from ISO vocabulary RestrictionCode and is an INSPIRE/GEMINI requirement. | otherRestrictions |
| 21.2 Conditions for Access and Use - Other constraints | This states any constraints on use of the data. Multiple conditions can be recorded for different parts of the data resource. If no conditions apply, then `No condtions apply` is recorded. This uses free text. | Data Must be used in accordance to the Marine Data Exchange's Terms of Use: https://www.marinedataexchange.co.uk/content/info/terms-of-use |
| Version info | ||
| Date of publication | The publication date of the resource or if previously unpublished the date that the resource was made publicly available via the MEDIN network. | 2021-05-17 |
| Harvest date | The date which this record has been (re)harvested from the provider. | 2026-04-19 |
| Metadata date | The date when the content of this metadata record was last updated. | 2026-04-07 |
| Metadata standard name | The name of the metadata standard used to create this metadata | MEDIN |
| Metadata standard version | The version of the MEDIN Discovery Metadata Standard used to create the metadata record | 3.1.2 |