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2002 LAPCOD Meeting
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Lagrangian Analysis of the Biophysical Dynamics of Fronts
Donald B. Olson
RSMAS/MPO University of Miami
dolson@rsmas.miami.edu(Abstract received 09/09/2002 for session A)
ABSTRACT
The application of both Lagrangian models and observations to the problem of understanding the dynamics of oceanic fronts and their role in setting up marine habitat is reviewed. From the observational perspective surface drifter experiments in the Pacific (Kuroshio and California Current), the Indian Ocean, South Atlantic and Gulf Stream are used to compare these different ecosystems. These observations are used to consider larval dispersal in both pelagic and meroplanktonic organisms. Applications range from understanding the distribution of zooplankton, dispersal of reef organisms across ocean basins, and the spawning of large pelagics. Practical aspects of simulation of larval drift and the inclusion of swimming behavior are discussed. The discussion will conclude with a consideration of the problem of understanding populations that are structured in terms of age and past history. Here the Lagrangian frame is the only feasible one to use in a biological model. Examples of structured models of both individual organisms and subpopulations will be given.
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2002 LAPCOD Meeting, Key Largo, Florida, December 12-16, 2000