de1774e97efa7ba05f04af8e77eefbae English series ABP Marine Environmental Research Ltd Data Manager enquiries@abpmer.co.uk pointOfContact 2024-03-01 MEDIN Discovery metadata standard 2.3.8 urn:ogc:def:crs:EPSG::4326 2022 - 2023, Celtic Sea Power Ltd, Celtic Sea, Met-Ocean surveys 2024-02-14 publication 2023-09-24 creation 2023-09-24 revision MDE-TCE-196-3964 The Cornwall FLOW Accelerator (CFA) project is a collaborative project including Celtic Sea Power Ltd (CSP project lead), University of Exeter (UoE), University of Plymouth (UoP) and the Offshore Renewable Catapult (OREC). It aims to develop tools, knowledge and data which accelerate the Celtic Sea FLOW opportunity and lay significant groundwork with respect to developing pipeline at both a FLOW project and supply chain level. The project is part funded by the European Regional Development Fund (ERDF). The floating LiDAR systems were procured from Akrocean, and it comprises of an Aluminium float with a 6-feet metal container on it. Apart from the LiDAR, the buoy is also fitted with a few accessory sensors like a downward looking ADCP, Wave Sensor, Depth Sensor, Conductivity Sensor, and a Weather station. The FLS is fitted with a Wave Energy Converter (WEC), solar panels, a battery pack, as well as a methanol fuel cell to meet the energy requirements of the LiDAR, the metocean and subsea sensors, data logging system, power management and the communication systems. The LiDAR sends infrared laser pulses into the atmosphere, four beams in four cardinal directions along a 28 degrees scanning cone angles. Laser pulses are backscattered by aerosol particles in the air (dust, water droplets, aerosol, etc.), that move at wind speed. The collected backscattered light allows for the calculation of wind speed and direction using Doppler induced laser wavelength shift. Up to 10 different range gates can simultaneously be measured using the laser pulse time of flight, allowing to measure the wind speed at 10 different heights. A dedicated signal processing algorithm computes wind vector components from four consecutive line-of-sight measurements as well as performs motion compensation. Leosphere Windsoft software controls the hardware and performs the processing. The FLS systems are configured for 10 measurement heights starting from 50 m, all the way up to 275 m for every 25 metres. The configuration considers the height of the buoy and the container. The pre-validation of the LiDAR units for the current study was carried out during the autumn and winter of 2021-22 in Lichteiland Goeree (LEG) in the Dutch sector of the North Sea by an independent 3rd party organization TNO. It was performed in accordance with the Carbon Trust guidelines and the performance for every parameter and for all measurement heights complied with the Stage 3 acceptance criterion. If you use this data towards any work please reference Celtic Power Limited using the following citation: Cornwall FLOW (Floating Offshore Wind) Accelerator. (2022-2023). Metocean Campaign Data from the Celtic Sea. Celtic Sea Power Limited. Retrieved from The Crown Estate's Marine Data Exchange, https://www.marinedataexchange.co.uk/details/TCE-3964/summary Wribhu Ghosh The Crown Estate +44 020 7851 5000 16 New Burlington Place London W1S 2HX enquiries@thecrownestate.co.uk originator The Crown Estate +44 020 7851 5000 16 New Burlington Place London W1S 2HX enquiries@thecrownestate.co.uk custodian notPlanned Database Delimited Documents Marine Environmental Data and Information Network Research Meteorology and Atmospheric Conditions Research and Development Activity Hydrography Meteorological geographical features Oceanographic geographical features GEMET - INSPIRE themes, version 1.0 2008-01-06 revision Other wave statistics Moored instrument depth Horizontal velocity of the water column (currents) Wind stress and shear Wind strength and direction Electrical conductivity of the water column Temperature of the water column Wave direction Wave height and period statistics Spectral wave data parameters SeaDataNet P021 parameter discovery vocabulary 2009-11-16 revision otherRestrictions Publicly Available https://www.marinedataexchange.co.uk/content/info/terms-of-use 1 eng climatologyMeteorologyAtmosphere inlandWaters oceans SeaDataNet vertical extent keywords 2010-01-01 revision atmosphere SeaDataNet vertical extent keywords 2010-01-01 revision water column -6.2904 -5.6161 50.9655 51.2665 2022-05-31 2023-09-24 https://www.marinedataexchange.co.uk/details/TCE-3964/summary A link to the web service or dataset. https://www.marinedataexchange.co.uk A link to the general host site. series Sensor Type Equipment LiDAR WindCube V2.1 Leosphere LiDAR (M212343EN-D RESTRICTED WindCubeA R V2.1 User Manual, 2021) Wave Sensor Motus 5729 wave sensor (MOTUS Wave Sensor 5729, 2019) Acoustic Doppler Current Profiler Nortek Signature 250 (N3015-031-ComprehensiveManual_ADCP_1118, n.d.) Depth Sensor AIRMAR EchoRange SS510 (Technology Corporation, n.d.) Conductivity Sensor xylem Conductivity Sensor 5819(Com, 2021) Weather Station GILL GMX500 (User Manual for Compact Weather Stations, 2018) WindCube WLS 866 V2.1 Acquisition Frequency (Hz) Resolution Accuracy Range wind speed (m/s) 1 0.1 m/s 0.1 m/s 0 - 60 m/s wind speed dispersion (m/s) 1 0.1 m/s 0.1 m/s 0 - 60 m/s wind speed min (m/s) 1 0.1 m/s 0.1 m/s 0 - 60 m/s wind speed max (m/s) 1 0.1 m/s 0.1 m/s 0 - 60 m/s wind direction (A°) 1 1A° 3A° 0 - 360A° z wind (m/s) 1 0.1 m/s 0.1 m/s 0 - 60 m/s z wind dispersion (m/s) 1 0.1 m/s 0.1 m/s 0 - 60 m/s cnr (dB) 1 cnr min (dB) 1 dopp spect broad (m/s) 1 0.1 m/s 0.1 m/s 0 - 60 m/s data availability (%) 1