Chaotic advection in an archipelago
Rypina, Irina I.
Pratt, Lawrence J.
Levin, Julia C.
Gordon, Arnold L.
MetadataShow full item record
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.
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.
Showing items related by title, author, creator and subject.
Mechanisms governing interannual variability of upper-ocean temperature in a global ocean hindcast simulation Doney, Scott C.; Yeager, Stephen G.; Danabasoglu, Gokhan; Large, William G.; McWilliams, James C. (American Meteorological Society, 2007-07)The interannual variability in upper-ocean (0–400 m) temperature and governing mechanisms for the period 1968–97 are quantified from a global ocean hindcast simulation driven by atmospheric reanalysis and satellite data ...
Hansen, Jeff E.; Raubenheimer, Britt; List, Jeffrey H.; Elgar, Steve (John Wiley & Sons, 2015-03-23)Alongshore force balances, including the role of nonlinear advection, in the shoaling and surf zones onshore of a submarine canyon are investigated using a numerical modeling system (Delft3D/SWAN). The model is calibrated ...
Lateral circulation and sediment transport driven by axial winds in an idealized, partially mixed estuary Chen, Shih-Nan; Sanford, Lawrence P.; Ralston, David K. (American Geophysical Union, 2009-12-03)A 3D hydrodynamic model (ROMS) is used to investigate lateral circulation in a partially mixed estuary driven by axial wind events and to explore the associated transport of sediments. The channel is straight with a ...