© 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: 2015, Spectrum Geosurvey, Kentish Flats Extension, Geophysical Survey
Abstract:
Spectrum Geosurvey Limited was contracted by Vattenfall Wind Power Limited to perform a post construction survey on the Kentish Flats Extension offshore wind farm. The primary requirement was to acquire multibeam bathymetry and backscatter data along the Kentish Flats Extension export cables, inter-array cables and surrounding the fifteen wind turbine generators. Multibeam bathymetry and backscatter data were acquired on board the survey / crew transfer vessel “Spectrum 1” between the 5th – 11th November 2015. All survey specifications were met and a total of 159 seabed targets larger than 0.5m in any dimension were subsequently identified. All reporting for this survey is contained entirely within this document. The following conclusions were reached following the survey operations and subsequent analysis: ? 159 seabed features have been identified within the survey area. ? No cable exposures are evident along the export cables and inter array cables. ? The largest shoaling and deepening differences associated with cable installation works between the 2015 Q4 and 2014 Q2 data were +1.15m (mattressing over LAL HV4 & KFE export cable Y2) and -0.8 m (trenching north of HV1 on export cable X4) respectively. ? The largest shoaling and deepening differences associated with spud can footprints are found between the 2015 Q4 and 2014 Q2 data were +0.95m (KFE WTG 05) and -3.15 m (KFE WTG 05) respectively. ? No significant changes were observed over the LAL/KF1 rock berms.
Data holder:
The Crown Estate
| Other details | ||
| Internal code | Internally assigned metadata identifier | 19206 |
| 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. | 2015, Spectrum Geosurvey, Kentish Flats Extension, Geophysical Survey |
| Alternative title | The purpose of alternative title is to record any additional names by which the dataset may be known. | Geophysical Survey |
| 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. | 6e0e2c9c-429a-48e2-8ae8-d4bc7077ed6b |
| Resource Identifier | This is the code assigned by the data owner. | TCE-840 |
| 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 | 2015-11-05 |
| End date | This describes the date the resource ends. This may only be the year if month and day are not known | 2015-11-11 |
| 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. | Spectrum Geosurvey Limited was contracted by Vattenfall Wind Power Limited to perform a post construction survey on the Kentish Flats Extension offshore wind farm. The primary requirement was to acquire multibeam bathymetry and backscatter data along the Kentish Flats Extension export cables, inter-array cables and surrounding the fifteen wind turbine generators. Multibeam bathymetry and backscatter data were acquired on board the survey / crew transfer vessel “Spectrum 1” between the 5th – 11th November 2015. All survey specifications were met and a total of 159 seabed targets larger than 0.5m in any dimension were subsequently identified. All reporting for this survey is contained entirely within this document. The following conclusions were reached following the survey operations and subsequent analysis: ? 159 seabed features have been identified within the survey area. ? No cable exposures are evident along the export cables and inter array cables. ? The largest shoaling and deepening differences associated with cable installation works between the 2015 Q4 and 2014 Q2 data were +1.15m (mattressing over LAL HV4 & KFE export cable Y2) and -0.8 m (trenching north of HV1 on export cable X4) respectively. ? The largest shoaling and deepening differences associated with spud can footprints are found between the 2015 Q4 and 2014 Q2 data were +0.95m (KFE WTG 05) and -3.15 m (KFE WTG 05) respectively. ? No significant changes were observed over the LAL/KF1 rock berms. |
| Lineage | Lineage includes the background information, history of the sources of data, data quality statements and methods. | During the survey operation position quality indicators were monitored and recorded to ensure consistently accurate results. Primary navigation was provided by the Applanix POS-MV decoded DGPS corrections and this system performed to a high standard throughout. Height standard deviation and GPS position mode alarms alerted the operator if the position quality deteriorated below acceptable levels. The multibeam echosounder tuning was continually adjusted to ensure an optimum balance of coverage, feature detection, sounding density and noise reduction. An online grid of raw bathymetry and sounding density was monitored to ensure that the project requirements were being met. |
| Related keywords | ||
| Keyword | 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 | 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 | Cable crossing | |
| 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 | 51.473833 |
| East | The eastern-most limit of the data resource in decimal degrees | 1.1424 |
| South | The southern-most limit of the data resource in decimal degrees | 51.373278 |
| West | The western-most limit of the data resource in decimal degrees | 1.0327 |
| 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 | Vattenfall | |
| MDE@vattenfall.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 | Spectrum Geosurvey | |
| info@spectrum-offshore.com | ||
| 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 | Vattenfall Wind Power Ltd | |
| MDE@vattenfall.com | ||
| Resource locators | ||
| Locator URL | Web address (URL) that links to the resource | https://www.marinedataexchange.co.uk/details/TCE-840/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. | 2023-03-06 |
| Harvest date | The date which this record has been (re)harvested from the provider. | 2026-04-12 |
| Metadata date | The date when the content of this metadata record was last updated. | 2026-03-24 |
| 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 |