ec7f81ed-23b9-407e-a1c0-4a903bab8924 English series series 2026-05-19T16:05:45 MEDIN 3.1.2 biota Bird counts SeaDataNet Parameter Discovery Vocabulary 2026-04-23 revision Bird behaviour SeaDataNet Parameter Discovery Vocabulary 2026-04-23 revision Bird taxonomy-related abundance per unit area of surface SeaDataNet Parameter Discovery Vocabulary 2026-04-23 revision Feasibility 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 3700 SeaDataNet sea areas 2012-11-07 revision Irish Sea and St. George's Channel SeaVoX Vertical Co-ordinate Coverages 2020-05-21 revision atmosphere 2012-04-24T00:00:00 2013-07-01T23:59:59 -5.0537 -3.6694 53.4913 53.9755 610.00 TCE-2677 Marine Data Exchange 2012 - 2013, HiDef, Zone 9 - Celtic Array, Aerial Bird Survey Aerial Bird Survey 2014-09-01T00:00:00 creation 2021-05-17T14:23:49 publication English HiDef Aerial Survey Ltd. was contracted by Celtic Array to carry out a series of digital video aerial surveys of marine mammals, sharks and birds in the Irish Sea Zone over the duration of April 2012 to March 2013 on a monthly basis. Special emphasis was placed on survey with the North East Potential Development Area and the Rhiannon Wind Farm. Information from this aerial survey will be used to inform the Rhiannon Wind Farm Environmental Statement and, if required for the other Potential Development Areas Environmental Statements. 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 HiDef Aerial Surveying Ltd Aerial Surveyor enquiries@hidefsurveying.co.uk originator The Crown Estate +44 020 7851 5000 enquiries@thecrownestate.co.uk distributor Celtic Array Ltd info@celticarray.com owner weekly Delimited Documents Geographic Information System https://www.marinedataexchange.co.uk/details/TCE-2677/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 Five digital video aerial surveys were flown during the months of April, May, June, July and August 2012, and the results of the video analysis were presented in the report : Interim report on aerial surveys for April to August 2012 , Centrica document number : R3-D-EN-013-0006-501028-002 . Three digital video aerial surveys were flown on June 19th, July 8th and July 18th 2013; the results of the analysis are presented in the report: Final report on supplementary aerial surveys from June 2013 to July 2013, Centrica document number: SE-D-EV-013-0008-000000-004 . Twelve digital video aerial surveys were flown during the calendar months between April2012 and March 2013; the results of the analysis are presented in the report: Final report on aerial surveys from April 2012 to March 2013, Centrica document number: SE-D-EV-013-0008-000000-003 The results show the survey transects flown, the numbers of each species and species groups recorded during the surveys, the population estimates for each of these in the Irish Sea Zone(ISZ), the Rhiannon Wind Farm and the North East Potential Development Area. The distributions of the most abundant species were plotted using kernel density estimation to generate the density surface maps, and the flying heights and directions of the most abundant species were presented Distribution data was generated for marine mammals, sharks and birds within the Irish Sea Zone that helped to assess where the most sensitive species occur within the Zone, and also within the proposed Rhiannon Wind Farm and NE Potential Development Area. More importantly, by using density surface models, it was possible to assess the number of animals likely to be affected within defined sea areas. Additional information was collected on the height above the sea of flying birds to assess whether they may collide with wind turbines, and also of flight direction of birds which might be flying to or from specific breeding sites on the coast near the ISZ. Celtic Array Ltd GIS and Data Manager info@celticarray.com pointOfContact EPSG Geodetic Parameter Registry 2022-12-12 revision WGS 84 / UTM zone 30N