138b3aff-c317-46e1-91fc-8f0806805a89 English dataset GEOxyz, Main Office (+32) 56 70 68 48 sales@geoxyz.be pointOfContact 2025-11-04 MEDIN 3.1.2 EPSG Geodetic Parameter Registry 2021-01-06 revision WGS 84 / UTM zone 31N 2025, EA3, OWF, BKS 2025-09-12 publication 2025, EA3, OWF, BKS East Anglia Three (EA3) is the second East Anglia offshore windfarm project developed by Scottish Power (SPR) as part of the East Anglia Hub which is shown in Figure 1. EA3 is located 71km east of Great Yarmouth and covers an area of approximately 305km. It has capacity to generate 1.2GW from the 95 planned turbines installed onto monopile foundations and a single offshore converter station (OFCS) installed onto a jacket foundation. Construction of EA3 is currently ongoing however the mobility of the seabed on site limits the validity of pre-construction survey data, with the latest datasets are due to expire in mid-2025. Scottish Power have awarded GEOxyz a contract to renew the geophysical surveys over wind turbine (WTG) foundations (FOU) and inter-array (IAC) locations where construction has yet to commence. A total of 95 WTGs are scheduled for installation during this phase of construction and it is anticipated that up to 22 WTG FOUs may have been started prior to commencement of the geophysical acquisition and therefore not require survey. The OFCS location does not form part of this survey scope. Figure 2 provides the general layout of EA3 including planned for spare foundation locations which do not form part of the scope of work (SoW). WTGs are separated approximately 1.1km apart in a north-south direction, and 2 to 2.8km in a west-east direction, with the separation increasing gradually from north to south. It is understood that the purpose of the work is to acquire multibeam echosounder (MBES), backscatter and sidescan sonar (SSS) data around the planned turbine foundation and MBES and backscatter only either side of the planned inter-array locations where construction has not yet commenced. A 170m radius around each WTG location identified by Scottish Power must be surveyed with both MBES and SSS. A corridor 10m either side (20m wide total) of each IAC location identified by Scottish Power must also be surveyed with MBES only. ScottishPower Renewables +44 (0)141 568 2000 contactus@scottishpower.com owner ScottishPower Renewables +44 (0)141 568 2000 contactus@scottishpower.com custodian GEOxyz, Main Office (+32) 56 70 68 48 sales@geoxyz.be originator GEOxyz, Main Office (+32) 56 70 68 48 sales@geoxyz.be distributor unknown Marine Environmental Data and Information Network MEDIN metadata record availability 2025-11-04 revision Hydrography GEMET - INSPIRE themes, version 1.0 2021-09-28 revision Acoustic backscatter in the water column SeaDataNet Parameter Discovery Vocabulary 2021-09-28 revision otherRestrictions no limitations to public access otherRestrictions no constraint to public access English 8-bit variable size UCS Transfer Format, based on ISO/IEC 10646 oceans 2.7424621582031 3.0583190917969 52.520399155853 52.752697824888 SeaVox salt and freshwater body gazetteer 2021-01-06 creation North Sea 2025-07-02 2025-08-10 unknown unknown Database dataset 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 2010-12-08 publication Vertical Datum: VORF Vessel: GeoSurveyor XI Equipment: Kongsberg EM2042-07 single head, dual swath Navigation processing summary and software: Qimera Data processing summary: Gain adjustment, Artefact cleaning Background Value: Encoded Software used in deliverable creation: FMGT Positional uncertainty: NA Resolution: 0.25m Created by: JGU Checked by: JGU