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2002 LAPCOD Meeting
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Synoptic Comparisons of Numerical Simulations with Drifter Observations of JES Circulation
Inkweon Bang, Christopher N. K. Mooers, Francisco J. Sandoval
University of Miami
ibang@rsmas.miami.edu(Abstract received 11/01/2002 for session A)
ABSTRACT
The Princeton Ocean Model (POM) has been implemented for the Japan (East) Sea (JES) with mesoscale-admitting resolution and driven by seasonal throughflow and synoptic atmospheric forcing for 1999 through 2001; this implementation is referred to as JES-POM. Observed temperature/salinity profiles and horizontal velocities at 800 m from PALACE float trajectories are used to assess the performance of JES-POM simulations. The PALACE float temperature and salinity profiles validated the JES-POM simulated seasonal cycle and identified some significant differences. The mean observed flow at 800 m defines a large cyclonic recirculation gyre over the Japan Basin that validates the simulated flow pattern; however, the simulated speeds were about twice those observed. The variance of the observed and simulated flow at 800 m had similar patterns; however, the simulated variance was about one-half the observed variance. Also, mean circulation and EKE distributions derived from surface WOCE drifters are compared with simulations.
Acknowledgement: Dr. Steve Riser, University of Washington, provided PALACE float data and Dr. Dong-Kyu Lee, Pusan National University, provided maps of surface mean circulation and EKE.
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2002 LAPCOD Meeting, Key Largo, Florida, December 12-16, 2000