2015, Spectrum Geosurvey Limited, Kentish Flats Extension, Post Construction Survey 2015

• Published by: Marine Environmental Data & Information Network
• Last updated: 10 July 2024
• Topic: Not added
• Licence: Other Licence ; View licence information

Summary

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.

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Data links

Link to the data	Format	File added	Data preview
A link to the general host site.	N/A	10 July 2024	Not available
A link to the web service or dataset.	N/A	10 July 2024	Not available

Additional information

View additional metadata

• Added to data.gov.uk: 2018-04-25
• Access contraints: None
• Harvest GUID: 53a8a762-668a-473e-8572-a18e1cb2a357
• Extent: Latitude: 51.473833° to 51.373278°
• Extent: Longitude: 1.032700° to 1.142400°
• Spatial reference system: urn:ogc:def:crs:EPSG::4236
• Dataset reference date: 2016-03-07 (publication)
• Frequency of update: asNeeded
• Responsible party: Vattenfall (custodian); Spectrum Geosurvey (originator)
• ISO 19139 resource type: series
• Metadata language: eng
• Source Metadata: XML
• Source Metadata: HTML

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Data is freely available for research or commercial use providing that the originators are acknowledged in any publications produced. also refer to the T&Cs on the MDE website: http://www.marinedataexchange.co.uk/pages/terms-of-use.aspx