b9c95bd5-8f8c-4e5a-98b7-5cc5939c1428 English dataset GIS Team GeoSciences Department GEOxyz, Main Office (+32) 56 70 68 48 GIS@geoxyz.eu pointOfContact 2026-06-15 MEDIN 3.1.2 EPSG Geodetic Parameter Registry 2021-01-06 revision WGS 84 / UTM zone 31N Acoustic backscatter in the water column 2019-05-20 publication 2026-06-15 revision 2019-05-20 creation 92FB0DDF-EA9E-4B76-A21A-DB6F89EC4626 East Anglia Three (EA3) is the second East Anglia offshore windfarm project developed byScottish Power Renewables (UK) (SPR) as part of the East Anglia Hub. EA3 is located 71km east of Great Yarmouth and covers an area of approximately 305km2. 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 at July of 2026. SPR have awarded GEOxyz a contract to renew the geophysical surveys over several wind turbine (WTG) foundations (FOU) locations across the site. A total of 95 WTGs are scheduled for installation during this phase of construction. Not all locations form part of this survey campaign; 69 of the 95 locations were surveyed during Campaign 4, comprising the original 64 base-scope locations plus 5 additional locations from the D06–D13 string confirmed by SPR. Additionally, 3 scour protection monitoring (SPS) locations were surveyed consisting of MBES acquisition only covering a minimum diameter of 100 m. The purpose of the work is to acquire multibeam echosounder (MBES), backscatter and sidescan sonar (SSS) data around the targeted wind turbine (WTG) foundation (FOU) locations. Targeted locations may or may not have infrastructure already installed at the time of survey. Should foundation infrastructure not already be in place a 170m radius (340m diameter) around each WTG location must be surveyed. Where a foundation is already installed the required survey area can be reduced to 150m radius (300m diameter). GIS Team GeoSciences Department GEOxyz, Main Office GIS engineer (+32) 56 70 68 48 GIS@geoxyz.eu owner GIS Team GeoSciences Department GEOxyz, Main Office GIS engineer (+32) 56 70 68 48 GIS@geoxyz.eu custodian GIS Team GeoSciences Department GEOxyz, Main Office GIS engineer (+32) 56 70 68 48 GIS@geoxyz.eu originator GIS Team GeoSciences Department GEOxyz, Main Office GIS engineer (+32) 56 70 68 48 GIS@geoxyz.eu distributor unknown Marine Environmental Data and Information Network MEDIN metadata record availability 2026-06-15 revision Hydrography Oceanographic geographical features GEMET - INSPIRE themes, version 1.0 2021-09-28 revision Bathymetry and Elevation Side-scan sonar Sound velocity and travel time in the water column SeaDataNet Parameter Discovery Vocabulary 2021-09-28 revision otherRestrictions No limitation otherRestrictions No condition English 8-bit variable size UCS Transfer Format, based on ISO/IEC 10646 oceans 2.761393 3.001694 52.284555 52.518150 SeaVox salt and freshwater body gazetteer 2021-01-06 creation North Sea 2021-04-20 2011-05-20 -49.69 -20.96 Database SSDM 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 Dataset has not been evaluated against Commission Regulation (EU) No 1089/2010 false Vertical Datum: VORF Vessel: Geo Ocean IV Equipment: Kongsberg EM204204 dual swath Navigation processing summary and software: Qimera/FMGT Data processing summary: Gain adjustment, Artefact cleaning Background Value: Encoded Software used in deliverable creation: FMGT Positional uncertainty: N/A Resolution:0.25m and 1m Created by:MKE Checked by:MKE