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

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.

本数据集收录了2017年7月至2018年8月期间，利用位于埃菲尔铁塔、蒙塞居尔和水晶热液喷口附近的三个TCM3海底倾斜流速仪所采集的实时数据。TCM-3海底倾斜流速仪由Lowell Instruments LLC（美国马萨诸塞州北福尔茅斯）生产，其测量流速的原理基于拖曳倾斜机制。该记录仪具有浮力，并通过一段短而柔韧的系泊缆锚定于海底。流动水的拖曳作用会使记录仪沿水流方向倾斜。记录仪的加速度计和磁力计通道用于记录倾斜程度及其方向（罗盘方位）。该阵列由三个流速仪组成，分别部署在上述三个地点附近。该阵列未连接至能源节点。在部署前，流速仪的内部时钟被设置为协调世界时（UTC）。数据恢复后的时钟漂移未在数据中体现，但作为元数据添加至表格table_tcm3emso_azores 2016-2018。