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Presenters Notified: November 2012

Program Schedule Posted:November 2012

Abstracts Available: January 2013

Meeting:
17-22 February 2013

Mitarai, S., Okinawa Institute of Science and Technology, Japan, satoshi@oist.jp
Uchiyama, Y., Kobe University, Japan, uchiyama@harbor.kobe-u.ac.jp
Sakagami, T., Okinawa Institute of Science and Technology, Japan, taichis@oist.jp
Siegel, D. A., University of California, Santa Barbara, USA, davey@eri.ucsb.edu
McWilliams, J. C., University of California, Los Angeles, USA, jcm@atmos.ucla.edu

TYPHOONS ALTER DISPERSAL PATTERNS IN THE KUROSHIO CURRENT SYSTEM

We explored the coastal circulation patterns of the subtropical Okinawan ocean in response to strong typhoons, based upon in-situ Lagrangian observations and the Regional Ocean Model System¬†(ROMS) driven by data assimilation products. A total of 54 surface-drifting buoys were deployed from nearshore coral reef regions during the 2012 typhoon season, and were¬†tracked until their batteries became depleted or they beached, during which ten typhoons struck the region. The surface-drifting buoys successfully captured the eddy formation due to ‚Äúinertial resonance‚Ä̬†(Price 1981) and modification of the Kuroshio Current, among other things. The ROMS model, including realistic typhoon forcing, is employed to account for buoy trajectories and the typhoon-Kuroshio interaction behind them. This model is promising in that it can resolve dispersal trajectories of marine species affected by the local weather. It can also yield detailed estimates of inter-annual variability in coast-to-coast connectivity.

Oral presentation

Session #:SS24
Date: 2/22/2013
Time: 10:45