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Water current measurements using oceanographic bottom lander LoTUS
Stockholm University, Faculty of Science, Department of Physical Geography.
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Number of Authors: 52020 (English)In: Applied Ocean Research, ISSN 0141-1187, E-ISSN 1879-1549, Vol. 94, article id 101982Article in journal (Refereed) Published
Abstract [en]

LOTUS is a bottom landing, Long Term Underwater Sensing node made for the observation of ocean water temperatures. LoTUS is moored to the seafloor and measures temperature according to a specified time schedule until, at the end of the mission, it surfaces to transmit the collected data to on-shore recipients using an Iridium link. The paper presents an extension of the sensing capability which includes water current velocity (speed and direction) using a robust, reliable and inexpensive Eulerian method. The method is based on the tilting stick principle where a combination of inertial and magnetic measurement data are used. The paper discusses the principal technique, modeling of the system, practical considerations, optimization of the setup for specific flow conditions, and the verification of experimental data.

Place, publisher, year, edition, pages
2020. Vol. 94, article id 101982
Keywords [en]
Ocean current velocity, Temperature, Long term, Eulerian, Moored system dynamics, Sensing
National Category
Earth and Related Environmental Sciences
Identifiers
URN: urn:nbn:se:su:diva-179690DOI: 10.1016/j.apor.2019.101982ISI: 000509631800014OAI: oai:DiVA.org:su-179690DiVA, id: diva2:1412165
Available from: 2020-03-05 Created: 2020-03-05 Last updated: 2022-03-23Bibliographically approved

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Kirchner, Nina

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