b07a6e3b-eb40-4ff8-aee2-efa256ac27b0 English series series 2026-08-05T10:03:15 MEDIN 3.1.2 biota oceans Acoustic noise in the water column SeaDataNet Parameter Discovery Vocabulary 2026-06-19 revision Fish abundance in water bodies SeaDataNet Parameter Discovery Vocabulary 2026-06-19 revision Fish behaviour SeaDataNet Parameter Discovery Vocabulary 2026-06-19 revision 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 Atmospheric conditions GEMET - INSPIRE themes, version 1.0 2009-07-31 revision Species distribution GEMET - INSPIRE themes, version 1.0 2009-07-31 revision SeaDataNet sea areas 2012-11-07 revision English Channel SeaVoX Vertical Co-ordinate Coverages 2020-05-21 revision water column 2008-10-10T00:00:00 2008-10-27T23:59:59 1.18221415492963 1.26099093245853 51.7105268136316 51.7529100147345 TCE-531 Marine Data Exchange 2008, Subacoustech, Gunfleet Sands 1 and 2, Underwater noise during impact piling operations Underwater noise during impact piling operations 2008-01-01T00:00:00 creation 2021-05-17T13:39:18 publication English This project has been undertaken by Subacoustech Environmental Ltd for DONG Energy to meet the requirements set out in FEPA consent 33723/08/0, specifically clause 9.35. It describes a series of underwater noise measurements undertaken at the Gunfleet Sands Offshore Wind Farm site during installation of the first four monopile foundations. The results have been interpreted in terms of the potential impact this noise may have on marine species based on linear unweighted metrics and also on the level of noise above hearing threshold (dBht) for the species considered. Measurements were undertaken along four transects extending approximately to the North, South, East and West of the wind farm site. These transects covered different areas and varying bathymetry of the surrounding region in order to best characterise the likely impact of the noise in the region. Measurements were carried out between the 10th October 2008 and 27th October 2008. 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 Subacoustech Environmental Ltd. info@subacoustech.com originator The Crown Estate +44 020 7851 5000 enquiries@thecrownestate.co.uk distributor Orsted info@orsted.com owner notPlanned Documents https://www.marinedataexchange.co.uk/details/TCE-531/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 primary aim of the measurements was to measure the levels of underwater noise from impact piling operations at a location where herring had been found to be spawning on the same day. This would enable cause and effect to be established. Ideally this would have involved carrying out a trawl for herring, and immediately after successfully finding spawning herring, measuring the levels of noise at that location. The process would then have been repeated at another location. However, due to the limited period of time each pile took to install this method was not feasible. The underwater noise monitoring locations were therefore chosen following discussions with Brown and May Marine and were dependent on where spawning herring had been found during the previous weeks survey, and also where it was believed the herring would be during the current survey. Thomas Walsh Orsted GIS and Data Coordinator +442078115200 xthwa@dongenergy.co.uk pointOfContact EPSG Geodetic Parameter Registry 2022-11-29 revision WGS 84