seanoe:74195 CANNAT Mathilde CNRS, IPGP, France cannat@ipgp.fr 2025-05-16 ISO 19115:2003/19139 1.0 Array of Ocean Bottom Tilt Current Meters: data from the EMSO-Azores observatory, 2016-2017 2017 2025-05-16 Cannat Mathilde, Wheeler Benjamin, Barreyre Thibaut, Sarradin Pierre-Marie (2017). Array of Ocean Bottom Tilt Current Meters: data from the EMSO-Azores observatory, 2016-2017. SEANOE. https://doi.org/10.17882/74195 This dataset contains current data acquired between September 2016 and July 2017 using 2 TCM3 Ocean Bottom Tilt Current Meters installed next to the Tour Eiffel and Montségur hydrothermal vent sites. The TCM-3 Ocean Bottom Tilt Current Meter from Lowell Instruments LLC (North Falmouth, MA, USA) measures current using the drag-tilt principle. The logger is buoyant and is anchored to the bottom via a short flexible tether. Drag from moving water tilts the logger in the direction of flow. The logger’s accelerometer and magnetometer channels are used to record the amount of tilt and direction of tilt (compass bearing). The array comprised 3 currentmeters, deployed near the Tour Eiffel, Montségur and White Castle hydrothermal vent sites (the instrument at White Castle did not recover data). The array is not connected to an energy node. The currentmeter's internal clocks are set to UTC time before deployment. Clock drift after recovery is not implemented in data but added as metadata in the file "Sites and Sensor metadata". CANNAT Mathilde CNRS, IPGP, France cannat@ipgp.fr WHEELER Benjamin CNRS, IPGP, France BARREYRE Thibaut CNRS, IPGP, France Ifremer, France SARRADIN Pierre-Marie Ifremer, France SEANOE https://www.seanoe.org/data/00630/74195/illustration.gif Mid-Atlantic Ridge EMSO-Azores EMSO Hydrothermal Vents Lucky Strike Eiffel Tower Crystal Montsegur current velocity current direction near seafloor seawater temperature Time-series MoMARSAT2017 MoMARSAT2016 Physical oceanography Azores EMSO - Regional Facility 2025-12-09 geonetwork.thesaurus.local.place.EMSO_RegionalFacility Lucky Strike EMSO - Site 2025-12-09 geonetwork.thesaurus.local.place.EMSO_Site Currents ODATIS aggregation parameters and Essential Variable names 2025-07-29 geonetwork.thesaurus.external.theme.NVS.OD1 Physical oceanography SeaDataNet Parameter Disciplines 2025-07-29 geonetwork.thesaurus.external.parameter.NVS.P08 IR-EMSO-France Research Infrastructure 2025-12-09 geonetwork.thesaurus.local.theme.IR Autonomous devices EMSO - Platform 2025-12-09 geonetwork.thesaurus.local.place.EMSO_Platform /Observational data/in-situ Type de jeux de donnée ODATIS 2025-12-09 geonetwork.thesaurus.local.theme.type_jeux_donnee CC-BY (Creative Commons - Attribution) EMSO data are published without any warranty, express or implied. The user assumes all risk arising from his/her use of EMSO data. EMSO data are intended to be research-quality and include estimates of data quality and accuracy, but it is possible that these estimates or the data themselves contain errors. It is the sole responsibility of the user to assess if the data are appropriate for his/her use, and to interpret the data, data quality, and data accuracy accordingly. EMSO welcomes users to ask questions and report problems to the contact addresses listed in the data files or on the EMSO web page. Currents and topography drive assemblage distribution on an active hydrothermal edifice 2020 Elsevier BV GIRARD FANNY SARRAZIN JOZEE ARNAUBEC AURELIEN CANNAT MATHILDE SARRADIN PIERRE-MARIE WHEELER BENJAMIN MATABOS MARJOLAINE 10.1016/j.pocean.2020.102397 Array of Ocean Bottom Tilt Current Meters: data from the EMSO-Azores observatory, 2022-2023 2024 SEANOE Cannat Mathilde Gayet Nicolas Demont Antoine Fontaine Fabrice Matabos Marjolaine Sarradin Pierre-Marie 10.17882/100007 Array of Ocean Bottom Tilt Current Meters: data from the EMSO-Azores observatory, 2023-2024 2024 SEANOE Cannat Mathilde Gayet Nicolas Rodier Philippe Demont Antoine Matabos Marjolaine Sarradin Pierre-Marie 10.17882/101802 Currents and topography drive assemblage distribution on an active hydrothermal edifice: associated data 2020 SEANOE Girard Fanny Sarrazin Jozee Arnaubec Aurelien Cannat Mathilde Sarradin Pierre-Marie Wheeler Benjamin Matabos Marjolaine 10.17882/76283 EMSO-Azores observatory real-time data 2017 deployment 2018 SEANOE Cannat Mathilde Sarradin Pierre-Marie Ballu Valérie Legrand Julien Laes Agathe Matabos Marjolaine Rommevaux-Jestin Céline Romuald Daniel Sarrazin Jozee Besançon Simon Moreau Bertrand Podeur Christian 10.17882/54234 10.17600/16001200 10.17600/17000500 oceans -32.27982 -32.275618 37.2888 37.30134 2016-09-05 2017-07-17 TEXTE CSV NC, NETCDF https://www.seanoe.org/data/00630/74195/data/73817.txt WWW:DOWNLOAD-1.0-link--download Raw data Current Data TCM3_3 - 20 MB https://www.seanoe.org/data/00630/74195/data/73818.txt WWW:DOWNLOAD-1.0-link--download Raw data Temperature data TCM3_3 - 13 MB https://www.seanoe.org/data/00630/74195/data/73819.txt WWW:DOWNLOAD-1.0-link--download Raw data Current Data TCM3_1 - 21 MB https://www.seanoe.org/data/00630/74195/data/73820.txt WWW:DOWNLOAD-1.0-link--download Raw data Temperature data TCM3_1 - 13 MB https://www.seanoe.org/data/00630/74195/data/74194.csv WWW:DOWNLOAD-1.0-link--download Sensor metadata - 1 KB https://www.seanoe.org/data/00630/74195/data/74195.csv WWW:DOWNLOAD-1.0-link--download Sites - 54 bytes https://www.seanoe.org/data/00630/74195/data/100924.nc WWW:DOWNLOAD-1.0-link--download Quality controlled data Current Data TCM3_1 - 5 MB https://www.seanoe.org/data/00630/74195/data/100925.nc WWW:DOWNLOAD-1.0-link--download Quality controlled data Current Data TCM3_3 - 5 MB https://erddap.emso.eu/erddap/tabledap/EMSO-AZORES_TCM3-1_2016-2017.html WWW:LINK https://erddap.emso.eu/erddap/tabledap/EMSO-AZORES_TCM3-3_2016-2017 WWW:LINK https://doi.org/10.17882/74195 DOI DOI of the product https://www.seanoe.org/data/00630/74195/ rel-canonical Seanoe Parameters -  temperature (°C) -  current velocity (m/s) - current direction (° from N) Location - Regional node: Emso-Azores - Site: Lucky Strike hydrothermal field - coordinates: see Table_TCM3EMSO_Azores 2016-2017 Installation - cruise: CANNAT Mathilde, SARRADIN Pierre-Marie (2016) MOMARSAT2016 cruise, RV L'Atalante, https://doi.org/10.17600/16001200 Recovery - Cruise: SARRADIN Pierre-Marie, CANNAT Mathilde (2017) MOMARSAT2017 cruise, RV Pourquoi pas ?, http://dx.doi.org/10.17600/17000500 Operating parameters For deployments near selected hydrothermal vents at the EMSO-Azores observatory, the accelerometer and magnetometer are configured with a burst interval of 1 minute, a burst rate of 8 Hz and a burst duration of 15 seconds. Temperature are recorded with a period of 1 minute. Sensor metadata The specifications of the magnetometer, accelerometer and temperature probes are as follows: - magnetometer: 3-axis magnetoresistive sensor and 12-bit A/D Converter, range +/- 1.3 Gauss, accuracy +/- 1° typical (nominal compass bearing), resolution < 0.001 Gauss, maximum recording rate 64 Hz, measurement duration 6 mS - accelerometer: 3-axis MEMS Accelerometer and 10-bit A/D Converter, software averaging: up to 32 values per measurement (25 samples per measurement are averaged when recording at 64 Hz), range +/- 2 g, accuracy < 0.01 g (enables 1° inclination determination), resolution < 0.001 g, maximum recording rate 64 Hz, measurement duration 0.625 ms per sample, 32 samples per recorded value (15.6 ms total sample time at 64 Hz 20 ms at 32 Hz or less) - thermistor: NTC Thermistor and 16-bit A/D Converter, low-pass filter rejects 50/60 Hz noise, range -5 to 30 °C (standard), -20 to 50 °C (extended), accuracy +/-0.1 °C (standard), +/-0.2 °C (extended), resolution < 0.01 °C, maximum rate 1 Hz, time constant 4 minutes typical (when plunged into an ice bath). Sensor setup Test and calibration A set of calibration coefficients for the magnetometer, accelerometer, and temperature channels are stored in the logger. The magnetometer and accelerometer coefficients are unique to each instrument while temperature coefficients are specific to each manufacturing lot. The calibration coefficients are applied upon recovery when the binary data is converted to text data. Data is provided as text, and not corrected for the time drift. Time drift is provided as metadata in Table_TCM3EMSO_Azores 2016-2017. Data management - Real time data transmission: No - Data storage in the Communication and storage unit (COSTOF2): No - Data storage in the instrument: Full