HR: 17:00h
AN: OS44A-05 [Abstracts]
TI: Circulation in the Southwest tropical Pacific for the year 2000 from an assimilated model
AU: * Cornuelle, B D
EM: bcornuelle@ucsd.edu
AF: Scripps Institution of Oceanography/UCSD, 9500 Gilman Drive Dept 0230, La Jolla, CA
92093-0230, United States
AU: Hoteit, I M
EM: ihoteit@ucsd.edu
AF: Scripps Institution of Oceanography/UCSD, 9500 Gilman Drive Dept 0230, La Jolla, CA
92093-0230, United States
AU: Stammer, D
EM: stammer@ifm.uni-hamburg.de
AF: Institut fuer Meereskunde
Universitaet Hamburg, Toplowitzstr. 7/III, Hamburg, 22529, Germany
AU: Koehl, A
EM: koehl@ifm.uni-hamburg.de
AF: Institut fuer Meereskunde
Universitaet Hamburg, Toplowitzstr. 7/III, Hamburg, 22529, Germany
AU: Heimbach, P
EM: heimbach@ocean.mit.edu
AF: Massachusetts Institute of Technology, 77 Massachusetts Avenue, Cambridge, MA 02139,
United States
AB:
A regional eddy-permitting model of the tropical Pacific has been
adjusted to fit observations for the year 2000 by controlling initial
conditions, boundary conditions, and forcing. The model domain covers
26S to 26N and has uniform 1/3 degree resolution. The fit includes
most observations: SSH and SST from satellites, in-situ T and S
profiles from floats and TAO moorings, and u and v from drifters and
TAO moorings. Except for the forcing, initial conditions, and
boundary conditions adjustments, the model dynamics were assumed to be
perfect. The resultant circulation obeys the model equations, and
could in principle be reproduced by another model using the same
controls. The restricted set of controls and the finite number of
iterations (approximately 140) means that exact matches to all
observations are not expected. The mean and time-evolving circulation
in the Southwest (SW) tropics will be discussed and compared to that
inferred from Argo profiles and other observations. In addition, the
sensitivity of circulation features to surface forcing, both local and
remote, will be explored.
DE: 4504 Air/sea interactions (0312, 3339)
DE: 4512 Currents
DE: 4532 General circulation (1218, 1222)
DE: 4534 Hydrodynamic modeling
SC: Ocean Sciences [OS]
MN: 2007 Fall Meeting