Joint IPRC-Oceanography SeminarFebruary 2, 3:00pm - 4:30pm
Mānoa Campus, MSB 100
International Pacific Research Center
University of Hawaii
"Wind-forced baroclinic beta-plumes, and an application to the Hawaiian Lee Countercurrent"
Abstract: An idealized linear continuously-stratified ocean model is used to study the baroclinic response to localized wind stress curl, also known as a wind-forced beta-plume. Vertical viscosity is found to damp preferentially higher-order vertical modes, inducing a westward deepening of the plume, together with a decay of surface zonal jets and the appearance of deep flow far to the west of the forcing. The associated zonal scales vary monotonically with the meridional forcing scale. An eddy-resolving global ocean model shows that the Hawaiian Lee Countercurrent (HLCC) has a vertical structure similar to that of idealized beta-plumes, and similar sensitivity to the wind stress curl meridional length scale. The model exhibits a previously unknown deep extension of the HLCC, which is confirmed by velocity data derived from ARGO float trajectories.
IPRC-Oceanography, Mānoa Campus
Ocean Student, 956-7633, firstname.lastname@example.org
Thursday, February 2
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Series on Reaching All of The Learners in Your Classroom: Cultural DiversityMānoa Campus, Kuykendall 106
D l'ecriture oraleMānoa Campus, Center for Biography, Henke Hall 325
Joint IPRC-Oceanography SeminarMānoa Campus, MSB 100
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HulaWindward Campus, Hale Kuhina 115