4dfb7ef9-885a-48a6-ac10-83ab6af20f3c English series series 2026-09-10T12:20:11 MEDIN 3.1.2 biota oceans Acoustic noise in the water column SeaDataNet Parameter Discovery Vocabulary 2026-06-19 revision Cetacean behaviour SeaDataNet Parameter Discovery Vocabulary 2026-06-19 revision Consenting 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 Species distribution GEMET - INSPIRE themes, version 1.0 2009-07-31 revision 0 SeaDataNet sea areas 2012-11-07 revision North Sea SeaVoX Vertical Co-ordinate Coverages 2020-05-21 revision water column 2011-11-29T00:00:00 2012-06-19T23:00:00 -2.820248 -2.20248 58.121337 58.182133 CES-364 Marine Data Exchange 2012, Subacoustech, Zone 1 - Moray Firth, Underwater Noise Study 2026-09-10T12:20:11 publication English This Technical Study presents in detail the results of modelling undertaken to provide a prediction of the likely extent of effects on marine fauna associated with underwater noise generated during the construction and operation of the proposed Telford, Stevenson and MacColl offshore wind farms in the MORL Zone and associated offshore transmission infrastructure (OfTI). It also provides a review of the literature relating to underwater noise and its impacts on marine fauna, the various metrics used in assessing impacts and additional details relating to the noise modelling methodology. 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 rebecca.hughes@edpr.com originator Crown Estate Scotland +44 (0)131 260 6070 enquiries@crownestatescotland.com distributor Rebecca Hughes EDP Renewables GIS & Data Manager 0131 556 7602 rebecca.hughes@edpr.com owner asNeeded Geographic Information System https://www.marinedataexchange.co.uk/details/CES-364/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 general approach to estimating the levels of subsea noise from offshore wind farm developments has been undertaken in two phases. In the first a broad-brush modelling approach has been used to rank order a wide range of offshore wind farm-related sources of underwater noise. This was done using the proprietary Simple Propagation Estimator And Ranking model (SPEAR) developed specifically for the Moray Firth developers (Moray Offshore Renewables Ltd, MORL, and Beatrice Offshore Windfarm Ltd, BOWL). In the main, the information used to validate this model has come from the very substantial database of recordings of various noise sources compiled by Subacoustech Environmental over the last 20 years. The model uses estimates from this database of the typical frequency content, source level and transmission losses associated with each type of noise source. These data have been used to determine the impact of each noise source on the marine environment, by using the estimate of noise level and a suitable criterion for a level above which it will have an effect to estimate the area which is affected by the noise source for each class or species of marine animal. Rebecca Hughes EDP Renewables GIS & Data Manager 0131 556 7602 rebecca.hughes@edpr.com pointOfContact EPSG Geodetic Parameter Registry 2022-12-12 revision WGS 84 / UTM zone 30N