ec4f397e-8c04-404e-8fa2-a3ad28048d31 English series series 2026-10-09T12:30:20 MEDIN 3.1.2 biota oceans Bird counts SeaDataNet Parameter Discovery Vocabulary 2026-06-19 revision Bird behaviour SeaDataNet Parameter Discovery Vocabulary 2026-06-19 revision Cetacean behaviour SeaDataNet Parameter Discovery Vocabulary 2026-06-19 revision Seal behaviour SeaDataNet Parameter Discovery Vocabulary 2026-06-19 revision Seal abundance SeaDataNet Parameter Discovery Vocabulary 2026-06-19 revision Cetacean abundance SeaDataNet Parameter Discovery Vocabulary 2026-06-19 revision Pre-Construction monitoring The Crown Estate Renewable Energy Development Phases 2012-05-15 revision Offshore area of search 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 Atmospheric conditions 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 Celtic Sea SeaVoX Vertical Co-ordinate Coverages 2020-05-21 revision atmosphere 2023-05-16T23:00:00 2023-05-16T23:00:00 -7.478642 -5.172582 50.324221 51.658171 TCE-4623 Marine Data Exchange 2023, APEM Limited, UK Celtic Sea Area, Airborne LiDAR Survey 2026-09-06T23:00:00 creation 2026-10-09T12:30:20 publication English Celtic Sea Power Limited commissioned APEM Limited to undertake an airborne Light Detection and Ranging (LiDAR) survey across the UK Celtic Sea area in May 2023. The survey was designed to support development of a bird flight height index for the Celtic Sea and combined calibrated airborne LiDAR with high-resolution digital still imagery to collect data on bird flight heights, bird and marine megafauna occurrence, and spatial distribution. The survey was undertaken on 17 May 2023 using two flights, with imagery and LiDAR data subsequently processed and quality assured by APEM. The survey was undertaken as part of the Cornwall FLOW Accelerator (CFA) project, led by Celtic Sea Power Limited in partnership with the University of Exeter, University of Plymouth and Offshore Renewable Energy Catapult (OREC), with funding from the European Regional Development Fund (ERDF). 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 Users of this dataset should acknowledge Celtic Sea Power Limited as the data owner and note that the survey was undertaken as part of the Cornwall FLOW Accelerator (CFA) project, funded by the European Regional Development Fund (ERDF). otherRestrictions The Crown Estate +44 020 7851 5000 enquiries@thecrownestate.co.uk custodian APEM Limited M.Delaunay@apemltd.co.uk originator The Crown Estate +44 020 7851 5000 enquiries@thecrownestate.co.uk distributor Celtic Sea Power Limited enquiries@celticseapower.co.uk owner notPlanned Delimited Documents Geographic Information System https://www.marinedataexchange.co.uk/details/TCE-4623/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 dataset was produced from an airborne LiDAR survey undertaken by APEM Limited for Celtic Sea Power Limited on 17 May 2023. The survey used a twin-engine aircraft fitted with a calibrated TopEye 3 LiDAR system and a high-resolution digital still camera system. Two survey flights were completed at approximately 579 m (1,900 ft) above mean sea level, with imagery collected at approximately 2 cm ground sampling distance. Raw LiDAR trajectories were post-processed using Applanix POSPac software, and LiDAR data were combined with corrected flight trajectories to generate accurately georeferenced survey outputs. System calibration and survey verification were undertaken using ground control data, including verification lines near Newquay. Bird locations identified from the digital imagery were matched with LiDAR returns above the sea surface to derive bird flight heights, with confidence assigned according to the number and quality of LiDAR hits. Image interpretation and species identification were internally quality assured by APEM. Wribhu Ghosh Celtic Sea Power Limited Technical & Data Lead 07879210563 wribhu.ghosh@celticseapower.co.uk pointOfContact EPSG Geodetic Parameter Registry 2022-12-12 revision WGS 84 / UTM zone 30N