7b9f01b4-cde6-42d5-a826-292225d5844a English series series 2026-08-12T12:38:29 MEDIN 3.1.2 climatologyMeteorologyAtmosphere Radar backscatter SeaDataNet Parameter Discovery Vocabulary 2026-06-19 revision Post-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 Agreement for Lease Area The Crown Estate Renewable Energy Development Areas 2012-05-15 revision Transport networks GEMET - INSPIRE themes, version 1.0 2009-07-31 revision SeaDataNet sea areas 2012-11-07 revision Irish Sea and St. George's Channel SeaVoX Vertical Co-ordinate Coverages 2020-05-21 revision atmosphere 2007-08-10T00:00:00 2007-09-17T23:00:00 -3.88021866047141 -2.964681654179 53.3030226951271 53.7310568920665 TCE-1687 Marine Data Exchange 2007, QinetiQ, North Hoyle, Assessment of visibility of North Hoyle and proposed Gwynt y Môr wind farms from neighbouring radars Radar assessment and radar visibility 2007-08-10T00:00:00 creation 2023-10-02T16:21:41 publication English This project was been requested by npower renewables after an objection to the Gwynt y Mor Offshore Wind Farm was lodged by NATS En-route Ltd (NERL) on the grounds of the potential impact on the St Annes radar. Airport Planning and Development Ltd (APD) were appointed to look into this and subsequently requested QinetiQ to assist in the technical part of the investigation. This report provides an assessment of visibility of both North Hoyle and proposed Gwynt y Môr wind farms from neighbouring radars. Key recommendations emphasize prioritizing the development of in-fill radar solutions and further investigating advanced technologies like phased arrays and electronic fencing to maintain safe airspace surveillance, as existing mitigation options are insufficient. Origin: Npower Renewables 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 QinetiQ customercontact@QinetiQ.com originator The Crown Estate +44 020 7851 5000 enquiries@thecrownestate.co.uk distributor RWE support@rwe.com owner notPlanned Geographic Information System Text or Plaintext https://www.marinedataexchange.co.uk/details/TCE-1687/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 Using technical assessments, simulations, antenna analysis, and radar modelling—including line-of-sight and coverage mapping, post-MTI RCS modelling, and comparative reviews of in-fill radar options—the studies confirmed that the wind farms would cause unacceptable radar clutter and persistent plots, with existing mitigation strategies such as screening, antenna height modification, beam-switching, and physical or electronic fencing proving either impractical or ineffective. Reviews of alternative radar coverage identified RAF Valley, Clee Hill, and Manchester Airport as the best candidates for in-fill mitigation, although all potential solutions presented limitations. The Crown Estate enquiries@thecrownestate.co.uk pointOfContact EPSG Geodetic Parameter Registry 2022-11-29 revision WGS 84