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The Spindown of Bottom-Trapped Plumes Public Deposited

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  • This note considers the decay of a bottom-trapped freshwater plume after the causative freshwater inflow has ceased. It is shown that shortly after the low-density inflow stops, the barotropic pressure field that it created radiates away and the ocean circulation becomes controlled by baroclinic pressure gradients generated by the remnants of the inflow. This produces a reversal of the circulation in the region downstream of the inflow, after which the entire plume starts to move in the upstream direction. The decay of the plume is henceforth controlled by upstream oceanic flow and dilution through cross-isopycnal mixing.
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  • Matano, Ricardo P., Elbio D. Palma, 2010: The Spindown of Bottom-Trapped Plumes. J. Phys. Oceanogr., 40, 1651–1658.
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  • 40
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  • 7
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  • R. P. Matano acknowledges the financial support of the National Science Foundation throughGrantsOCE-0726994 andOCE- 0928348 and of NASA through Grant NNX08AR40G. E. D. Palma acknowledges the financial support from CONICET (PIP09-112-200801), Agencia Nacional de Promocio´n Cientı´fica y Tecnolo´ gica (PICT08-1874), Universidad Nacional del Sur (24F044), and the Inter- American Institute for Global Change Research, supported by the U.S. National Science Foundation Grant GEO-045325.
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  • description.provenance : Made available in DSpace on 2012-01-26T16:19:11Z (GMT). No. of bitstreams: 1 MatanoRicardoP.CEOAS.SpindownBottomTrapped.pdf: 1711442 bytes, checksum: df828f1173aeae07c11b7bee8e1eda93 (MD5) Previous issue date: 2010-07
  • description.provenance : Submitted by Deborah Campbell (deborah.campbell@oregonstate.edu) on 2012-01-26T16:19:11Z No. of bitstreams: 1 MatanoRicardoP.CEOAS.SpindownBottomTrapped.pdf: 1711442 bytes, checksum: df828f1173aeae07c11b7bee8e1eda93 (MD5)

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