38b52181-087f-425b-96f7-f20603130c9e English series series 2026-09-10T13:41:39 MEDIN 3.1.2 biota environment oceans Acoustic backscatter in the water column SeaDataNet Parameter Discovery Vocabulary 2026-06-19 revision Habitat characterisation SeaDataNet Parameter Discovery Vocabulary 2026-06-19 revision Habitat extent SeaDataNet Parameter Discovery Vocabulary 2026-06-19 revision Research The Crown Estate Renewable Energy Development Phases 2012-05-15 revision Zone search area The Crown Estate Renewable Energy Development Areas 2012-05-15 revision Habitats and biotopes GEMET - INSPIRE themes, version 1.0 2009-07-31 revision Oceanographic geographical features 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 North Sea SeaVoX Vertical Co-ordinate Coverages 2020-05-21 revision water column 2015-01-06T00:00:00 2015-10-31T23:59:59 -3.8271 -1.2534 57.6598 58.9952 CES-341 Marine Data Exchange 2015, Subacoustech Environmental, Zone 1 - Moray Firth, Underwater Noise Modelling - Fish Ecology 2026-09-10T13:41:35 publication English This dataseries contains reports and data (mainly as shape files). This technical study presents additional underwater noise modelling undertaken by Subacoustech Environmental in order to assess the effects of impact piling noise at the three consented MORL offshore wind farms: Telford, Stevenson, and MacColl, on relevant fish species in light of the refined piling strategy. Following from the initial study and modelling as part of the 2012 Environmental Study, more information is now known and so there are better refined parameters for further study. The noise levels have been presented as dBht(Species) levels for salmon, cod and herring in keeping with the previous modelling carried out as part of the Environmental Statement (ES) (MORL, 2012). The modelling results show that the largest impact ranges are predicted for herring, with maximum impact ranges predicted out to 35.8 km for 90 dBht, where a strong avoidance reaction is expected by virtually all individuals, and out to 91.0 km for 75 dB, where some avoidance reaction is expected by the majority of individuals, but habituation or context may limit effect. 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 Crown Estate Scotland +44 (0)131 260 6070 enquiries@crownestatescotland.com custodian Subacoustech Environmental Ltd. +44 (0)1489 892 881 subacoustech@subacoustech.com originator Crown Estate Scotland +44 (0)131 260 6070 enquiries@crownestatescotland.com distributor Rebecca Hughes EDP Renewables GIS and Data Manager rebecca.hughes@edpr.com owner notPlanned Geographic Information System https://www.marinedataexchange.co.uk/details/CES-341/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 Location information for the study (e.g. piling locations) was provided to Subacoustech Ltd by Moray Offshore Renewables Limited (MORL). Subacoustech carried out the work under contract to MORL. The same modelling methodology and locations have been used as in the ES. Underwater noise effects arising from piling activity were modelled relating to two scenarios (Highest Expected (HE) and Most Probable (MP)) for Soil Profile 2. A pile diameter of 2.5m is assumed with both scenarios with maximum blow energies of 1800kJ for P2MP and 2250 kJ for P2HE. Natasha Kumar EDP Renewables natasha.kumar.scholar@edpr.com pointOfContact EPSG Geodetic Parameter Registry 2022-11-29 revision WGS 84