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contributor authorBiastoch, A.
contributor authorBeal, L. M.
contributor authorLutjeharms, J. R. E.
contributor authorCasal, T. G. D.
date accessioned2017-06-09T16:30:45Z
date available2017-06-09T16:30:45Z
date copyright2009/10/01
date issued2009
identifier issn0022-3670
identifier otherams-69198.pdf
identifier urihttp://onlinelibrary.yabesh.ir/handle/yetl/4210840
description abstractThe Agulhas Current system has been analyzed in a nested high-resolution ocean model and compared to observations. The model shows good performance in the western boundary current structure and the transports off the South African coast. This includes the simulation of the northward-flowing Agulhas Undercurrent. It is demonstrated that fluctuations of the Agulhas Current and Undercurrent around 50?70 days are due to Natal pulses and Mozambique eddies propagating downstream. A sensitivity experiment that excludes those upstream perturbations significantly reduces the variability as well as the mean transport of the undercurrent. Although the model simulates undercurrents in the Mozambique Channel and east of Madagascar, there is no direct connection between those and the Agulhas Undercurrent. Virtual float releases demonstrate that topography is effectively blocking the flow toward the north.
publisherAmerican Meteorological Society
titleVariability and Coherence of the Agulhas Undercurrent in a High-Resolution Ocean General Circulation Model
typeJournal Paper
journal volume39
journal issue10
journal titleJournal of Physical Oceanography
identifier doi10.1175/2009JPO4184.1
journal fristpage2417
journal lastpage2435
treeJournal of Physical Oceanography:;2009:;Volume( 039 ):;issue: 010
contenttypeFulltext


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