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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. The Greater Gabbard offshore wind farm site is located about 23 km (14 miles) off the Suffolk coast and comprises 140 turbines near the Inner Gabbard and Galloper sandbanks, making it currently one of the largest offshore wind farms (OWF) in the world. 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.
SSE Renewables
Copyright
| Other details | ||
| Internal code | Internally assigned metadata identifier | 7328 |
| 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, HR Wallingford, Greater Gabbard Offshore Wind Farm Limited, 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. | 9bbf31b9-adb1-4912-9273-3905d259970b |
| Resource Identifier | This is the code assigned by the data owner. | GGOWL_MPSCOUR_HRW |
| 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 |
| Vertical extent (min) | A positive or negative decimal number, for example, the shallowest depth recorded if subtidal, or, if intertidal, the lowest point recorded. | -2.58 |
| Vertical extent (max) | A positive or negative decimal number, for example, the deepest depth recorded if subtidal, or, if intertidal, the highest point recorded. | -38.9 |
| Vertical extent reference | This descibes the vertical coordinate reference system as referred to in the EPSG register of geodetic parameters. (epsg-registry.org) | LAT VORF |
| Spatial resolution | This describes the spatial resolution of the dataset or the spatial limitations of the service. | inapplicable |
| 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. The Greater Gabbard offshore wind farm site is located about 23 km (14 miles) off the Suffolk coast and comprises 140 turbines near the Inner Gabbard and Galloper sandbanks, making it currently one of the largest offshore wind farms (OWF) in the world. 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. | 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 EBR5209_GGOWF_May2013_Appendix_B_GIS_IG EBR5209_GGOWF_May2013_Appendix_C_GIS_GA |
| Related keywords | ||
| Keyword | General subject area(s) associated with the resource, uses multiple controlled vocabularies | Bathymetry and Seafloor topography |
| General subject area(s) associated with the resource, uses multiple controlled vocabularies | Hydrographic multibeam echo | |
| General subject area(s) associated with the resource, uses multiple controlled vocabularies | Marine Environmental Data and Information Network | |
| General subject area(s) associated with the resource, uses multiple controlled vocabularies | Marine Environmental Data and Information Network | |
| Keyword title | MEDIN | |
| Keyword | General subject area(s) associated with the resource, uses multiple controlled vocabularies | Marine Environmental Data and Information Network |
| Keyword title | MEDIN | |
| 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 |
| Regional sea | Southern North Sea | |
| Responsible organisations | ||
| Role | This describes the organisation or person who has the role of 'Originator', 'Custodian'(data holder), 'Distributor', 'Metadata point of contact' and 'Owner' in relation to the dataset. There are other roles in the ISO and INSPIRE codelists. | author |
| Organisation name | SSE Renewables | |
| Phone | +44 (0)141 226 8916 | |
| Delivery point | 1 Waterloo St | |
| Postal code | G2 6AY | |
| City | Glasgow | |
| Country | United Kingdom | |
| URL | http://www.sserenewables.com | |
| 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 | |
| Fax | +44 (0) 1491 832233 | |
| Delivery point | HR Wallingford Ltd., Howbery Park | |
| Postal code | OX10 8BA | |
| City | Oxon | |
| Country | United Kingdom | |
| URL | http://www.hrwallingford.co.uk/ | |
| 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 | |
| Delivery point | 1 Waterloo St | |
| Postal code | G2 6AY | |
| City | Glasgow | |
| Country | United Kingdom | |
| URL | http://www.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 | SSE Renewables | |
| Phone | +44 (0)141 226 8916 | |
| Delivery point | 1 Waterloo St | |
| Postal code | G2 6AY | |
| City | Glasgow | |
| Country | United Kingdom | |
| URL | http://www.sserenewables.com | |
| Resource locators | ||
| Locator URL | Web address (URL) that links to the resource | https://www.marinedataexchange.co.uk/details/438/summary |
| Web address (URL) that links to the resource | https://www.marinedataexchange.co.uk | |
| Dataset constraints | ||
| 20 Limitations on Public Access - Access constraints | ISO restriction code chosen from ISO 19115-1 Codelist | otherRestrictions |
| 20 Limitations on Public Access – Other constraints | Any restriction on the use of the resource such as the need to agree to certain licence conditions. | Copyright |
| 21 Conditions for Access and Use - Use limitation | Any restrictions imposed on accessing the resource such as the need to agree to certain licence conditions. | Copyright |
| Available data formats | ||
| Data format name | Format in which digital data can be provided for transfer | XYZ |
| Data version | Version of the digital format used | |
| 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. | 2014-06-19 |
| Metadata date | The date when the content of this metadata record was last updated. | 2014-07-14 |
| Metadata standard name | The name of the metadata standard used to create this metadata | MEDIN Discovery Profile |
| Metadata standard version | The version of the MEDIN Discovery Metadata Standard used to create the metadata record | 2.3.6 |
© OpenStreetMap contributors