Towards Selective Tidal-Stream Transport for Lagrangian profilers

Jerome Jouffroy, Qiuyang Zhou, Oliver Zielinski

Research output: Chapter in Book/Report/Conference proceedingArticle in proceedingsResearchpeer-review


Autonomous Lagrangian profilers are widely used as measurement and monitoring platforms. In their current mode of operation, the profilers usually drift passively at their parking depth before making a vertical profile to go back to the surface. This paper presents a control strategy to actively select and use tidal currents so that a profiler can autonomously reach a desired destination. After presenting the profiler and possible modifications for a coastal environment, we introduce simple
mathematical models for the profiler and its environment. We then present a feedback controller that, taking into account the direction of oscillating tidal currents, is able to steer the profiler to any horizontal location. For illustration, we also give a few simulation results using tidal current data from the North Sea.
Original languageEnglish
Title of host publicationOCEANS 2011, MTS/IEEE
Number of pages6
Publication date2011
ISBN (Print)978-1-4577-1427-6
Publication statusPublished - 2011


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