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Measuring subsurface dispersion with inexpensive Lagrangian floats

By December 23, 2022January 6th, 2023No Comments
Institution: University of British Columbia, Université du Québec (à Rimouski)
Theme: Environmental change
Area of Vulnerability: Marine ecosystems/living resources

Project Complete

Principal investigator

Samuel Stevens (Ph.D. student), University of British Columbia

Co-Principal investigators

Supervisors: Cédric Chavanne, Université du Québec (à Rimouski) & Rich Pawlowicz, University of British Columbia

Call

RQM/MEOPAR TReX Graduate Students & Postdoc Awards

As part of the TReX program, I am designing a subsurface float to measure currents in the deeper waters of the Gulf of St. Lawrence. This simple float consists of a GPS and a carefully calculated amount of weight which, when deployed, will drift below the surface of the ocean for a period before jettisoning its weight and resurfacing. Upon resurfacing, the float will transmit a GPS signal, providing a point-to-point measurement of the subsurface currents in the St. Lawrence. We aim to deploy these floats in tandem with the proposed dye release experiment, helping us to understand the prevailing transport pathways and the dispersal of contaminants in the deeper waters of the region.