bc002471-1fc9-4317-9d17-069c0e958ce9 English series series 2026-05-18T08:23:47 MEDIN 3.1.2 geoscientificInformation oceans Sedimentary structure SeaDataNet Parameter Discovery Vocabulary 2026-04-23 revision Side-scan sonar SeaDataNet Parameter Discovery Vocabulary 2026-04-23 revision Sound velocity and travel time in the water column SeaDataNet Parameter Discovery Vocabulary 2026-04-23 revision Bathymetry and Elevation SeaDataNet Parameter Discovery Vocabulary 2026-04-23 revision Post-Construction monitoring The Crown Estate Renewable Energy Development Phases 2012-05-15 revision Renewable Energy Lease area The Crown Estate Renewable Energy Development Areas 2012-05-15 revision Offshore Substation The Crown Estate Renewable Energy Development Areas 2012-05-15 revision Offshore Cable Corridor The Crown Estate Renewable Energy Development Areas 2012-05-15 revision Meteorological geographical features GEMET - INSPIRE themes, version 1.0 2009-07-31 revision Elevation GEMET - INSPIRE themes, version 1.0 2009-07-31 revision Oceanographic geographical features GEMET - INSPIRE themes, version 1.0 2009-07-31 revision SeaVoX Vertical Co-ordinate Coverages 2020-05-21 revision water column 2012-05-02T00:00:00 2012-05-17T23:59:59 -3.67077555367112 -3.44373295185234 54.0092642401199 54.1279117469857 TCE-2193 Marine Data Exchange 2012, EGS, Walney, May Post-Construction Survey May Post-Construction Survey 2021-05-17T14:09:53 publication English In May 2012 EGS (International) Ltd was contracted to undertake a bathymetric survey in the post-construction (operational) phase of the project to determine whether there are any changes to seabed morphology at the wind farm site including inter array cables and along the export cable routes. In addition the survey covered three locations where debris from wind farm construction has been lost to the seabed. To meet this objective EGS conducted a multibeam high frequency bathymetric survey combined with seabed mapping and sub-surface hazard identification using side-scan sonar (SSS) in conjunction with a USBL system, across each of the proposed WTG, substation locations and export cable routes over the Walney Offshore Windfarm 1 & 2 sites. 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 EGS (International) Ltd +44 1420 489 329 info@egssurvey.co.uk originator The Crown Estate +44 020 7851 5000 enquiries@thecrownestate.co.uk distributor Orsted info@orsted.com owner notPlanned Delimited Documents https://www.marinedataexchange.co.uk/details/TCE-2193/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 The main equipment spread consisted of a Kongsberg EM3002 MBES and Klein 3000 dual frequency SSS. C&C Technologies C-Nav DGPSs were used for horizontal positioning, in combination with a Kongsberg HiPAP 351P USBL system for the SSS tow fish (interfaced into the QPS QINSy navigation package). Vertical level was LAT (VORF LAT Geoid model), levels were derived by post processing raw GPS data acquired by the Leica 1200 and the C&C Technologies C-Nav units. A 200 metre wide corridor either side of the array and export cables was surveyed; four survey lines were conducted over each of the WTG locations and substations and along the cable routes at a line spacing of 40m and 140m either side of each WTG and export cable; a total of 1050.1km of survey line were run over the WOW 1 & 2 site. The Crown Estate +44 020 7851 5000 enquiries@thecrownestate.co.uk pointOfContact EPSG Geodetic Parameter Registry 2022-12-12 revision WGS 84 / UTM zone 30N