5e30238d-9349-446d-8741-d8ae504e438b English series series 2026-07-15T10:55:54 MEDIN 3.1.2 biota Cetacean behaviour SeaDataNet Parameter Discovery Vocabulary 2026-06-19 revision Seal behaviour SeaDataNet Parameter Discovery Vocabulary 2026-06-19 revision Fish behaviour SeaDataNet Parameter Discovery Vocabulary 2026-06-19 revision Research The Crown Estate Renewable Energy Development Phases 2012-05-15 revision Research and Development Activity The Crown Estate Renewable Energy Development Areas 2012-05-15 revision Species distribution GEMET - INSPIRE themes, version 1.0 2009-07-31 revision SeaVoX Vertical Co-ordinate Coverages 2020-05-21 revision water column 2005-09-30T23:00:00 2006-07-10T23:00:00 -3.48021866047141 1.81195154153466 51.445122296891 54.0121625760581 TCE-242 Marine Data Exchange 2005-2006, Subacoustech, COWRIE Research, Measurement and interpretation of underwater noise during construction and operation of offshore windfarms in UK waters Measurement and interpretation of underwater noise during construction and operation of offshore windfarms in UK waters 2007-01-01T00:00:00 creation 2021-05-17T13:33:43 publication English This study was carried out to measure the underwater noise generated by offshore wind farms during the construction and operation phases. The purpose of the programme of measurements is to provide information which will aid the estimation and minimisation of the impact of noise during the lifecycle (construction, operation and decommissioning) of wind farms. Measurements were taken during the pile driving phase at North Hoyle, Scroby Sands, Kentish Flats, Barrow and Burbo Bank. The noise created during the pile driving process can cause injury and harmful damage to marine mammals close to the turbines (100metres) and behavioural effects at ranges of the order of 10 kilometres or more. Measurements were taken at the North Hoyle, Scroby Sands, Kentish Flats and Barrow offshore wind farms during the operation phase. In general, the level of noise created by operational wind farms was found to be very low and no evidence was found of noise levels that might have the capacity to cause marine animals to avoid the area. Origin: Subacoustech Ltd 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 JR Nedwell, SJ Parvin, B Edwards, R Workman, AG Brooker, JE Kynoch Subacoustech Environmental Ltd. +44 (0)1489 892 881 jeremy.nedwell@subacoustech.com originator The Crown Estate +44 020 7851 5000 enquiries@thecrownestate.co.uk distributor COWRIE cowrie@offshorewind.co.uk owner notPlanned Documents https://www.marinedataexchange.co.uk/details/TCE-242/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 For this programme of work a standard was adopted where measurements covered the frequency range of 1 Hz to over 120 kHz (data always oversampled at 350 kHz). This spans the entire frequency range over which fish and marine mammals can hear. Recording over this range is not trivial, both in terms of sample rate required and hence the quantity of data acquired, and the dynamic range that is required to adequately span a spectral dynamic range and temporal dynamic range that together may exceed 150 dB. Sound measurements were taken using Brüel & Kjær hydrophones. For the measurements close to the pile being driven a Type 8105 hydrophone was used, while for the measurements at greater distances, and for measurements at operational windfarms, a Type 8106 hydrophone was used. The latter type has a higher sensitivity than the former, and could overload if the sound level is high, as it is in the close vicinity to a pile being driven. The calibrations of the hydrophones are traceable to the Danish Primary Laboratory of Acoustics (DPLA) and the American National Institute of Standards and Technology (NIST) International calibration standards. Copies of the calibration charts supplied with the hydrophones are given in Appendix B. The calibrations of the hydrophones were also tested with a Brüel & Kjær Type 4223 pistonphone calibrator with WA0658 coupler prior to use. The calibrator operates at a nominal frequency of 250 Hz and was calibrated and traceable to International Standards. Subacoustech Ltd JR Nedwell, SJ Parvin, B Edwards, R Workman, AG Brooker, JE Kynoch 02380711840 jeremy.nedwell@subacoustech.com pointOfContact EPSG Geodetic Parameter Registry 2022-11-29 revision WGS 84