065e45fb-cf58-44f3-811b-d4fdbc14296a English series series 2026-03-12T15:37:26 MEDIN 3.1.2 oceans Sediment acoustics SeaDataNet Parameter Discovery Vocabulary 2023-12-12 revision Bathymetry and Elevation SeaDataNet Parameter Discovery Vocabulary 2023-12-12 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 Elevation GEMET - INSPIRE themes, version 1.0 2009-07-31 revision 2016-10-12T00:00:00 2016-10-22T23:59:59 -3.5571 -3.38 53.9442 54.0303 TCE-2304 Marine Data Exchange 2016, Deep BV, West of Duddon Sands, Post-construction Bathymetric Survey (Survey 1 Consent) Post-construction Bathymetric Survey (Survey 1 Consent) 2023-09-04T15:57:20 publication English Deep BV has been contracted by Dong Energy Ltd. to conduct several bathymetrical surveys at the West of Duddon Sands Windfarm (WDS01) in the East Irish Sea, United Kingdom. The surveys were performed as one combined survey operation, during autumn 2016 and can be divided in two parts: Survey 1 – This consent survey covered a selection of 6 wind turbine generators (WTGs), 17km of array cables between the WTGs, the WDS01 substation, as well as the entire route of export cable north and the export cable south. The objective of the survey was to accurately measure the current state of the offshore installations, to identify areas with seabed change and scour development around structures and to identify potential cable exposures and/or free-spans of cables. Survey 2 – The Crossing and Proximity Agreement (CPA) survey. This survey covered two cable crossing agreements (A10 & A11) and the proximity agreements (A12). This series covers Survey 1 (Consent survey) only.The primary objectives of the autumn 2016 post-construction survey to be undertaken within the scope of this specification include as a minimum (as defined by Dong):  Accurately map the seabed in the defined survey areas;  Identify areas with seabed change and scour development around structures, down to 10 cm changes, compared to previous surveys;  Document all observed cable crossings and rock dumps in the survey areas. Show examples from "typical areas", representing the majority of the site/cable routes;  Identify potential cable exposures/free-spans of cables and describe changes (and potential exposures/free-spans) in detail;  Document accuracy of measurements;  Create a 3D model of exposed/free-spanning cables from MBES data;  Align all data processing, interpretation and reporting with respect to the technical specifications in Dong Appendix 7 (WDS01 - 2016 - Post-construction Survey - Appendix 7 - Technical Requirements). 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 Deep BV, Hydrography and Geophysics +31 (0) 20 6343 676 info@deepbv.nl originator The Crown Estate +44 020 7851 5000 enquiries@thecrownestate.co.uk distributor Orsted info@orsted.com owner notPlanned Delimited Text or Plaintext https://www.marinedataexchange.co.uk/details/TCE-2304/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 During the survey operations, continuous QC has taken place. This included monitoring status and quality indicators of the multibeam system. Automated alerts were used when a status or quality indicator of one of the sensors was out of the specified range. Continuously the surveyor was monitoring the data coverage, the 95% confidence level and monitoring overlapping data between adjacent survey lines during survey operations. The Crown Estate +44 020 7851 5000 enquiries@thecrownestate.co.uk pointOfContact EPSG Geodetic Parameter Registry 2024-06-17 revision ETRS89 / UTM zone 30N