Joint Seminar: The global ocean circulation on both eddy-resolving and millennial scales

The global ocean circulation, in particular the overturning circulation, has time scales of centuries to decades. Assessing the pathways of water parcels around the globe is only viable on such long time scales using low resolution model data. However, the ocean circulation is in many regions eddy-driven, and these eddies are not represented in the low resolution model.

In this presentation, I will introduce a statistical technique for obtaining so-called super-trajectories, which are Lagrangian pathways of any given length formed using a Monte Carlo process. The super-trajectories are computed from short trajectories by essentially tying these short trajectories together. The short trajectories can be either based solely on observational data or on high-resolution model output. I will show how powerful these super-trajectories are, and how they can be used to trace the global three-dimensional ocean circulation on centennial to millennial time scales.

Date

17.08.2011

Time

13:30 h

Place

Bundesstr. 53, room 022/023
Seminar Room 022/023, Ground Floor, Bundesstrasse 53, 20146 Hamburg, Hamburg

Speaker

Erik van Sebille, RSMAS, University of Miami / University of New South Wales

Organizers

Daniela Matei

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