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Please use this identifier to cite or link to this item: http://hdl.handle.net/1834/555

Title: Reversing Bottom Circulation in the Somali Basin
Authors: Molinari, R.L.
Beal, L.M.
Chereskin, T.K.
Robbins, P.E.
ASFA Terms: Hydrographic data
Issue Date: 15-Aug-2000
Citation: Geophysical Research Letters, 27(16), p. 2565-2568
Abstract: Two sets of direct velocity measurements were taken, concurrent with hydrographic data, in the bottom waters of the northern Somali Basin in June and September, 1995. The velocities indicate a temporal flow reversal in the bottom circulation, which is consistent with the changing density structure between the sections. In June, there is evidence of a southward Deep Western Boundary Current with a transport of 5 Sv. By September, flow close to the boundary is northward, with a transport of 2.6 Sv. Furthermore, the deep density gradient across the interior of the Somali Basin also changes between occupations, implying a cyclonic circulation in June and anticyclonic flow in September. Rossby wave activity is high in this region during the southwest monsoon, yet there is also evidence of a strong barotropic component to the Great Whirl in September, which may cause the reversal in the abyssal circulation.
URI: http://hdl.handle.net/1834/555
ISSN: 0094-8276
Appears in Collections:Miscellaneous

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