Publication Date:
2022-05-25
Description:
Author Posting. © American Meteorological Society, 2010. This article is posted here by permission of American Meteorological Society for personal use, not for redistribution. The definitive version was published in Journal of Physical Oceanography 40 (2010): 1988–2006, doi:10.1175/2010JPO4336.1.
Description:
Techniques from dynamical systems theory have been applied to study horizontal stirring of fluid in the Philippine Archipelago. The authors’ analysis is based on velocity fields produced by two high-resolution (3 and 6 km) numerical models. Particular attention is paid to identifying robust surface flow patterns and associating them with dominant Lagrangian coherent structures (LCSs). A recurrent wind-driven dipole in the lee of the coastline is considered in detail. The associated LCSs form a template for stirring, exchange, and biological transport in and around the dipole. Chaotic advection is argued to provide a relevant framework for interpreting mesoscale horizontal stirring processes in an archipelago as a whole. Implications for the formation of filaments, the production of tracer variance, and the scale at which stirring leads to mixing are discussed in connection with an observed temperature record.
Description:
This work was supported by the
Office of Naval Research: Grant N00014-07-1-0590 to
Woods Hole Oceanographic Institution; Grant ONR-
0601153N to Stevens Institute of Technology; Grant
N00014-07-1-0417 to Institute of Marine and Coastal
Sciences, Rutgers University; and Grant N00014-09-1-
0582 to Lamont-Doherty Earth Observatory of Columbia
University.
Keywords:
Advection
;
Ocean circulation
Repository Name:
Woods Hole Open Access Server
Type:
Article
Format:
application/pdf
