647df8a8-ea4d-46f0-836a-ce55902f864a English series series 2026-04-07T14:11:59 MEDIN 3.1.2 climatologyMeteorologyAtmosphere transportation Hazards to navigation SeaDataNet Parameter Discovery Vocabulary 2023-12-12 revision Transport activity SeaDataNet Parameter Discovery Vocabulary 2023-12-12 revision Radar backscatter SeaDataNet Parameter Discovery Vocabulary 2023-12-12 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 Offshore Cable Corridor The Crown Estate Renewable Energy Development Areas 2012-05-15 revision Hydrography GEMET - INSPIRE themes, version 1.0 2009-07-31 revision Transport networks GEMET - INSPIRE themes, version 1.0 2009-07-31 revision 3700 SeaDataNet sea areas 2012-11-07 revision Irish Sea and St. George's Channel SeaVoX Vertical Co-ordinate Coverages 2020-05-21 revision inapplicable 2014-01-01T00:00:00 2014-12-31T23:59:59 -5.0537 -3.6694 53.4913 53.9755 TCE-2671 Marine Data Exchange 2014, Anatec, Zone 9 Celtic Array, Shipping and Navigation 2014-09-01T00:00:00 creation 2021-05-17T14:23:43 publication English This study forms Chapter 14 of the Stage 2 Preliminary Environmental Information (Stage 2 PEI) of the Rhiannon Offshore Wind Farm, which is part of the Environmental Impact Assessment (EIA). The study was carried out by Anatec Limited and it describes the existing environment with regard to shipping and navigation and assesses the potential impacts of the Offshore Development area of the proposed Rhiannon Wind Farm (RWF). 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 Anatec Limited Project Manager aberdeen@anatec.com originator The Crown Estate +44 020 7851 5000 enquiries@thecrownestate.co.uk distributor Orsted info@forewind.co.uk owner notPlanned Documents Geographic Information System https://www.marinedataexchange.co.uk/details/TCE-2671/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 Methodology included marine traffic surveys, desk-based research and consultation to allow the identification of receptors and potential impacts. The process then followed the methodology defined by the DECC -Department of Energy and Climate Change - DECC Methodology for Assessing Marine Navigational Risk (DECC, 2005) and MCA - Maritime and Coastguard Agency in assessing risk associated with the development of offshore wind farms. Baseline shipping activity within the Offshore Development was assessed using AIS- Automatic Identification System and Radar data collected in line with MGN 371 requirements to identify vessel types and activities. The period of data collection encompassed seasonal weather fluctuations in shipping activity and also accounted for a range of tidal conditions. The data set used as the main assessment tool and for modelling included 14 days AIS and Radar data collected in August 2012 from the Benaiah which was a dedicated survey vessel, 14 days AIS in December 2012 from shore based stations and 14 days AIS and Radar collected in May 2013 from the Glenravel also a dedicated survey vessel. A larger dataset of 21 months (collected from shore based AIS) was also assessed to identify both anchoring vessels and adverse weather routing of commercial vessels. This was undertaken to ensure that seasonality and varying weather conditions is captured out with the smaller dataset required under the MGN 371 required marine traffic survey period. Recreational vessel data was extracted from the AIS and Radar tracks recorded in August 2012, December 2012 and May 2013. Again this data was also considered alongside data collected from the shore based AIS stations and Fishing vessel data were extracted from the AIS and Radar tracks recorded in August 2012, December 2012 and May 2013 - Please note that presentation of fishing data within this report is controlled by the Marine Management Organisation and further information can be found in the Commercial Fisheries chapter - Chapter 13 of the Stage 2 Preliminary Environmental Information (Stage 2 PEI) Celtic Array GIS and Data Manager info@celticarray.com pointOfContact EPSG Geodetic Parameter Registry 2022-12-12 revision WGS 84 / UTM zone 30N