Kopte Robert robert.kopte@ifg.uni-kiel.de 0000-0002-0822-2818 Institut für Geowissenschaften, Christian-Albrechts-Universität, Kiel IfG http://www.ifg.uni-kiel.de/ https://ror.org/04v76ef78 Zabel Matthias mzabel@uni-bremen.de 0000-0003-4681-1821 MARUM - Center for Marine Environmental Sciences, University Bremen MARUM http://www.marum.de/ https://ror.org/04ers2y35 2026 Shipboard ADCP current measurements (75 kHz) during RV METEOR cruise M213 dataset https://doi.org/10.1594/PANGAEA.992812 2026-03-09T13:34:41 Current velocities of the upper water column along the cruise track of R/V Meteor III cruise M213 were collected by a vessel-mounted 75 kHz RDI Ocean Surveyor ADCP. The ADCP transducer was located at 5.0 m below the water line. The instrument was operated in narrowband mode (WM10) with a bin size of 8.00 m, a blanking distance of 4.00 m, and a total of 100 bins, covering the depth range between 17.0 m and 809.0 m. Attitude data from the ship's motion reference unit were used by the data acquisition software VmDAS internally to convert ADCP beam velocities to geographic coordinates. The Python toolbox OSADCP (version 2.2.0) was used for data post-processing. Acoustic Interferences were identified based on outliers in the ADCP echo intensity data. Echo intensity data were cleaned accordingly and affected velocity cells were flagged to be removed prior ensemble-averaging. The ship's velocity was calculated from position fixes obtained by the Global Navigation Satellite System (GNSS), taking into account lever arms of ADCP transducer and GNSS antenna. Accuracy of the derived water velocities mainly depends on the quality of the position fixes and the ship's heading data. Further errors stem from a misalignment of the transducer with the ship's centerline. Data processing included water track calibration of the misalignment angle (-46.4670° +/- 0.5848°) and scale factor (0.9976 +/- 0.0102) of the measured velocities. The velocity data were averaged in time using an average interval of 60 s. Depth cells with ensemble-averaged percent-good values below 25% are marked as 'bad data'. Andrade Mariana Bach Alissa alibach@uni-bremen.de Baltz Anna Bernhard Renée renee@uni-bremen.de Burmester Anne Cabanillas Elvira Eberhard Lisa Esposito Mario mesposito@geomar.de 0000-0002-2575-7814 Groth Finja Krohn Jule Melina Sophie Linowski Erik Müller Annika Nowald Nico Otterpohl Sophia Reichert Leo Rohleder Christian Schillai Sophia Seeliger Julian Wali Shiwan Weber Jannik Wegener Gunter gwegener@mpi-bremen.de 0000-0002-6819-373X Weigelt Jakob Witzleb Antonia Zabel Matthias mzabel@uni-bremen.de 0000-0003-4681-1821 2025 Initiation of a Ridge Flank Observatory off the Southern Reykjanes Ridge - Part 3: Sensor Exchange and Seismic Survey, Cruise No. M213, 05.09.2025 – 08.10.2025, St. John's (Canada) – Las Palmas (Spain) report METEOR-Berichte, Begutachtungspanel Forschungsschiffe M213 https://doi.org/10.48433/cr_m213 83 pp 2025 nc file: ADCP current measurements (75 kHz) during RV METEOR cruise M213 dataset https://store.pangaea.de/Publications/Kopte_M213_75kHz/met_213_vmadcp_75khz.nc Kopte Robert robert.kopte@ifg.uni-kiel.de 0000-0002-0822-2818 2026 Upper-ocean acoustic Doppler current profiler (75kHz-ADCP) underway measurements during METEOR cruise M213 report Institute of Geosciences, Kiel University https://download.pangaea.de/reference/138257/attachments/met_213_vmadcp_75khz_proc_report.pdf Kopte Robert robert.kopte@ifg.uni-kiel.de 0000-0002-0822-2818 Betz Maximilian maximilian.betz@awi.de Anselm Norbert norbert.anselm@awi.de https://www.awi.de/ueber-uns/organisation/mitarbeiter/detailseite/norbert-anselm.html 0000-0003-0367-6850 2022 SOP 75kHz ADCP aboard of RV Meteor ( vessel:meteor:adcp_75khz_2175g) Zenodo https://doi.org/10.5281/zenodo.7022755 -43.749 -18.8146 36.098 57.6785 -29.447495985361783 52.084606634938076 2025-09-08T13:00:00 2025-10-04T05:59:00 17.0 809.0 horizontal profile DAM_Underway DAM Underway Research Data https://www.allianz-meeresforschung.de/kernbereiche/datenmanagement-und-digitalisierung#unterwegs DataHub DataHub Earth and Environment of the Helmholtz Association https://helmholtz.software/projects/datahub M213_0_Underway-3 53.0861 -43.749 -3675.0 2025-09-08T13:00:00 36.098 -18.8146 -5460.0 2025-10-04T05:59:00 https://registry.o2a-data.de/items/7480 M213 RIFLOR 3 https://doi.org/10.48433/cr_m213 Zabel, Matthias 2025-09-05 2025-10-08 St. John's, Canada Las Palmas, Spain 20250131 https://download.pangaea.de/reference/138950/attachments/M213_nav.png doi:10.1594/PANGAEA.993376 Meteor (1986) https://en.wikipedia.org/wiki/RV_Meteor_(1986) DBBH 8411279 Vessel mounted Acoustic Doppler Current Profiler [75 kHz] VMADCP-75 Current meters Teledyne RDI Ocean Surveyor 75 kHz vessel-mounted ADCP http://vocab.nerc.ac.uk/collection/L22/current/TOOL0362/ 12534994 CC-BY-4.0 Creative Commons Attribution 4.0 International https://creativecommons.org/licenses/by/4.0/ DATE/TIME Date/Time http://en.wikipedia.org/wiki/ISO_8601 Time T http://dbpedia.org/resource/Time Kopte Robert robert.kopte@ifg.uni-kiel.de 0000-0002-0822-2818 Date/Time LATITUDE Latitude http://en.wikipedia.org/wiki/ISO_6709 Kopte Robert robert.kopte@ifg.uni-kiel.de 0000-0002-0822-2818 Latitude LONGITUDE Longitude http://en.wikipedia.org/wiki/ISO_6709 Kopte Robert robert.kopte@ifg.uni-kiel.de 0000-0002-0822-2818 Longitude DEPTH, water Depth water m depth http://purl.obolibrary.org/obo/PATO_0001595 water http://purl.obolibrary.org/obo/CHEBI_15377 Length L http://dbpedia.org/resource/Length Kopte Robert robert.kopte@ifg.uni-kiel.de 0000-0002-0822-2818 Depth water [m] Current velocity, east-west Cur vel U cm/s Linear Velocity http://dbpedia.org/resource/Velocity Vessel mounted Acoustic Doppler Current Profiler [75 kHz] VMADCP-75 Current meters Teledyne RDI Ocean Surveyor 75 kHz vessel-mounted ADCP http://vocab.nerc.ac.uk/collection/L22/current/TOOL0362/ Kopte Robert robert.kopte@ifg.uni-kiel.de 0000-0002-0822-2818 Cur vel U [cm/s] Current velocity, north-south Cur vel V cm/s Linear Velocity http://dbpedia.org/resource/Velocity Vessel mounted Acoustic Doppler Current Profiler [75 kHz] VMADCP-75 Current meters Teledyne RDI Ocean Surveyor 75 kHz vessel-mounted ADCP http://vocab.nerc.ac.uk/collection/L22/current/TOOL0362/ Kopte Robert robert.kopte@ifg.uni-kiel.de 0000-0002-0822-2818 Cur vel V [cm/s] Quality flag, current velocity QF cur vel Seadatanet flag: Data quality control procedures according to SeaDataNet (2010) https://www.seadatanet.org/content/download/596/file/SeaDataNet_QC_procedures_V2_%28May_2010%29.pdf Kopte Robert robert.kopte@ifg.uni-kiel.de 0000-0002-0822-2818 UV QC flag meanings= 0:unknown, 1:good_data, 2:probably_good_data, 3:potentially_correctable_bad_data, 4:bad_data, 5:not_used, 6:not_used, 7:nominal_value, 8:interpolated_value, 9:missing_value QF cur vel Echo intensity Echo int cts Abundance or Count Vessel mounted Acoustic Doppler Current Profiler [75 kHz] VMADCP-75 Current meters Teledyne RDI Ocean Surveyor 75 kHz vessel-mounted ADCP http://vocab.nerc.ac.uk/collection/L22/current/TOOL0362/ Kopte Robert robert.kopte@ifg.uni-kiel.de 0000-0002-0822-2818 Echo int [cts] Echo intensity, cleaned Echo int clean cts Abundance or Count Vessel mounted Acoustic Doppler Current Profiler [75 kHz] VMADCP-75 Current meters Teledyne RDI Ocean Surveyor 75 kHz vessel-mounted ADCP http://vocab.nerc.ac.uk/collection/L22/current/TOOL0362/ Kopte Robert robert.kopte@ifg.uni-kiel.de 0000-0002-0822-2818 Echo int clean [cts] Backscatter, relative Backsc rel dB Vessel mounted Acoustic Doppler Current Profiler [75 kHz] VMADCP-75 Current meters Teledyne RDI Ocean Surveyor 75 kHz vessel-mounted ADCP http://vocab.nerc.ac.uk/collection/L22/current/TOOL0362/ Kopte Robert robert.kopte@ifg.uni-kiel.de 0000-0002-0822-2818 Backsc rel [dB] Pings, averaged to a double ensemble value Pings per ens # Abundance or Count Vessel mounted Acoustic Doppler Current Profiler [75 kHz] VMADCP-75 Current meters Teledyne RDI Ocean Surveyor 75 kHz vessel-mounted ADCP http://vocab.nerc.ac.uk/collection/L22/current/TOOL0362/ Kopte Robert robert.kopte@ifg.uni-kiel.de 0000-0002-0822-2818 Pings per ens [#] Percent good pings good ping % Dimensionless Ratio ψ Vessel mounted Acoustic Doppler Current Profiler [75 kHz] VMADCP-75 Current meters Teledyne RDI Ocean Surveyor 75 kHz vessel-mounted ADCP http://vocab.nerc.ac.uk/collection/L22/current/TOOL0362/ Kopte Robert robert.kopte@ifg.uni-kiel.de 0000-0002-0822-2818 good ping [%] CurationLevelC Enhanced curation https://wiki.pangaea.de/wiki/Curation_levels ProcLevel2 PANGAEA data processing level 2 https://wiki.pangaea.de/wiki/Processing_levels#PANGAEA_data_processing_level_2 citable DAMUnderwayResearchData author107220 author108191 author113007 author113008 author113009 author113010 author113011 author113012 author113013 author113014 author113015 author113016 author113017 author29225 author50507 author52337 author54088 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