0d362ee8-bc20-4a85-8ebb-7bd7f45f4553 English series series 2026-03-24T16:27:52 MEDIN 3.1.2 geoscientificInformation oceans Sedimentary structure SeaDataNet Parameter Discovery Vocabulary 2023-12-12 revision Seismic reflection SeaDataNet Parameter Discovery Vocabulary 2023-12-12 revision Seismic refraction SeaDataNet Parameter Discovery Vocabulary 2023-12-12 revision Bathymetry and Elevation SeaDataNet Parameter Discovery Vocabulary 2023-12-12 revision Pre-Construction monitoring The Crown Estate Renewable Energy Development Phases 2012-05-15 revision Offshore Cable Corridor The Crown Estate Renewable Energy Development Areas 2012-05-15 revision Elevation GEMET - INSPIRE themes, version 1.0 2009-07-31 revision SeaDataNet sea areas 2012-11-07 revision North Sea 2015-07-31T23:00:00 2015-08-28T23:00:00 0.19 2.029 53.47 53.84 TCE-655 Marine Data Exchange 2015, Gardline, Hornsea Project One - Heron Wind and Njord Ventus, Geophysical Survey Export Cable Geophysical Survey Export Cable 2021-05-17T13:41:57 publication English Gardline Geosurvey Limited carried out an export cable route survey for DONG Energy Wind Power AS extending from the Hornsea Project One Wind Turbine Area to landfall at the Lincolnshire coast. The object was to gather information strictly along newly designed export cable routes where the existing data is considered insufficient, using single beam and multi-beam echo sounders, pinger and sparker. There will be no limitations when published on the Marine Data Exchange otherRestrictions 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 otherRestrictions The Crown Estate +44 020 7851 5000 enquiries@thecrownestate.co.uk custodian Gardline Geosurvey Limited +44 (0)1493 845 600 geosurvey@gardline.com originator The Crown Estate +44 020 7851 5000 enquiries@thecrownestate.co.uk distributor Orsted Customer-questions@orsted.com owner notPlanned Database Documents Geographic Information System https://www.marinedataexchange.co.uk/details/TCE-655/summary A link to the web service or dataset. https://www.marinedataexchange.co.uk A link to the general host site. 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 2010-12-08T00:00:00 publication Conformity with the Commission Regulation (EU) No 1089/2010 was either not relevant to this dataset or not a requirement of the Marine Data Exchange for the creation and submission of this dataset; therefore, conformity has not been assessed and cannot be declared False series Future Delivery ID 737. This metadata file has been created by The Crown Estate, based upon information provided by DONG Energy, for the purpose of uploading the data to the Marine Data Exchange. The vessel's reference point (X=0, Y=0, Z=0) was the CoG (Centre of Gravity). All equipment offsets, towpoints and laybacks are included in Appendix A of the Acquisition Report. Five independent GNSS systems were operated for the duration of the project. Primary navigation for this project was the C&C Technologies CNav DGNSS system which uses a network of reference stations in order to calculate a single differential correction for the vessel’s location. The DGNSS systems performed to a high standard, and hence positioning accuracy achieved was in accordance with specifications for the systems. Absolute accuracy would, therefore, be in the region of ±1m with relative accuracy being greater. A heave compensated, dual frequency echo sounder was used to determine water depths within the survey area. A Simrad EM3002D multi-beam echo sounder is permanently installed on M.V. Vigilant; it was used to provide swathe bathymetry data. Acquired data were processed using Caris HIPS and SIPS (version 8.1) software. All data were reduced to LAT using tidal elevations that were derived using post-processed GNSS observations. For SBP data processing, the data were loaded into Gardline Geosurvey’s GeoFusion software, along with the bathymetry data from the survey area. The data were then shifted on a ping-by-ping basis to match the bathymetry grid, using a water velocity of 1505m/s. This reduces the data to the LAT datum. The Crown Estate +44 020 7851 5000 enquiries@thecrownestate.co.uk pointOfContact EPSG Geodetic Parameter Registry 2024-06-17 revision ETRS89 / UTM zone 31N