Array of Ocean Bottom Tilt Current Meters: data from the EMSO-Azores observatory, 2017-2018

Surface Currents

This dataset contains current data acquired between July 2017 and August 2018 using 3 TCM3 Ocean Bottom Tilt Current Meters installed next to the Tour Eiffel, Montségur and Crystal 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 comprises 3 currentmeters, deployed near the Tour Eiffel, Montségur and Crystal hydrothermal vent sites. It 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 Table_TCM3EMSO_Azores 2016-2018.

Data and resources

Raw data

Current data - 19 MB

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Raw data

Temperature data - 5 MB

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Sensor metadata - 16 KB

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Sites - 72 bytes

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Quality controlled data

Current data TCM3-1 - 6 MB

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Quality controlled data

Current data TCM3-2 - 6 MB

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Quality controlled data

Current data TCM3-3 - 6 MB

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DOI of the product

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Seanoe

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Additional information

Temporal extent	2017-07-20 – 2018-08-16
Date (publication)	2018-10-01
Date (revision)	2025-05-16
Status	onGoing
Update frequency	asNeeded
Metadata language	en
License	CC-BY (Creative Commons - Attribution)
Source metadata	ISO 19115 XML
Last updated	2026-11-04
Created	2026-11-04
API	package_show