SEMINAR: Centre for Water Research Seminar

Intrusions generated by boundary mixing may be an important mechanism to redistribute mixed fluid away from the boundaries and into the lake interior. Much of our understating of the Benthic Boundary Layer (BBL) dynamics, and consequences of near - boundary mixing for the rest of the water body, are based on laboratory, theoretical studies, and only circumstantial evidence from field observations from tracer studies and standard hydrodynamics measurements.

To investigate the fate of mixed fluid in a lake, we released a dye tracer in the BBL of a stratified deep alpine lake and tracked the flow path of the dye tracer via intensive profiling with a multi-scale profiler and real time three-dimensional numerical simulations of the dye tracer plume through the Aquatic Real-time Management System (ARMS).

This allowed us to optimize the sampling regime during the experiment tracking the tracer with far greater precision than previously possible.

This talk will explain the experimental methodology and present the preliminary results of the intrusions behavior.

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