Drifter Behavior on the Oregon–Washington Shelf during Downwelling-Favorable Winds Public Deposited

http://ir.library.oregonstate.edu/concern/defaults/37720f300

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  • Drifters released offshore of Oregon during predominantly downwelling favorable alongshore winds during three different deployments (October 1994, January 1998, and September 1998) display similar behavior: after being advected around in the offshore eddy field, they move onshore to a particular isobath and are advected poleward alongshore, without coming ashore. Numerical modeling results suggest that this may be due to downwelling circulation creating a marginally stable density gradient on the shelf inshore of the downwelling front, thereby increasing the vertical eddy diffusivity, which reduces the effective cross-shelf Ekman transport to nearly zero. The downwelling front itself is accompanied by a poleward jet, which carries drifters rapidly to the north. This behavior is consistent with previous modeling results.
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  • Austin, Jay A., John A. Barth, 2002: Drifter Behavior on the Oregon–Washington Shelf during Downwelling-Favorable Winds. Journal of Physical Oceanography, 32(11), 3132–3144.
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  • description.provenance : Submitted by Deborah Campbell (deborah.campbell@oregonstate.edu) on 2011-12-12T21:06:04Z No. of bitstreams: 1 BarthJohnA.CEOAS.DrifterBehaviorOregon.pdf: 1645830 bytes, checksum: c1e0db140242edeb226c35ad12e42ee3 (MD5)
  • description.provenance : Made available in DSpace on 2011-12-30T17:36:34Z (GMT). No. of bitstreams: 1 BarthJohnA.CEOAS.DrifterBehaviorOregon.pdf: 1645830 bytes, checksum: c1e0db140242edeb226c35ad12e42ee3 (MD5) Previous issue date: 2002-11
  • description.provenance : Approved for entry into archive by Sue Kunda(sue.kunda@oregonstate.edu) on 2011-12-30T17:36:34Z (GMT) No. of bitstreams: 1 BarthJohnA.CEOAS.DrifterBehaviorOregon.pdf: 1645830 bytes, checksum: c1e0db140242edeb226c35ad12e42ee3 (MD5)

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