Pacific ventilation of the Artic Ocean's lower halocline by upwelling and diapycnal mixing over the continental margin Public Deposited

http://ir.library.oregonstate.edu/concern/defaults/zw12z673q

copyrighted by American Geophysical Union

Descriptions

Attribute NameValues
Creator
Abstract or Summary
  • Pacific winter waters, a major source of nutrients and buoyancy to the Arctic Ocean, are thought to ventilate the Arctic's lower halocline either by injection (isopycnal or penetrative) of cold saline shelf waters, or by cooling and freshening Atlantic waters upwelled onto the shelf. Although ventilation at salinity (S) > 34 psu has previously been attributed to hypersaline polynya waters, temperature, salinity, nutrient and tracer data suggest instead that much of the western Arctic's lower halocline is in fact influenced by a diapycnal mixing of Pacific winter waters (with S ~ 33.1 psu) and denser eastern Arctic halocline (Atlantic) waters, the mixing taking place possibly over the northern Chukchi shelf/slope. Estimates from observational data confirm that sufficient quantities of Atlantic water may be upwelled to mix with the inflowing Pacific waters, with volumes implying the halocline over the Chukchi Borderland region may be renewed on timescales of order a year.
Resource Type
DOI
Date Available
Date Issued
Citation
  • Woodgate, R. A., Aagaard, K., Swift, J. H., Falkner, K., and Smethie, W. M., Jr., 2005, Pacific ventilation of the Arctic Ocean's lower halocline by upwelling and diapycnal mixing over the continental margin: Geophys. Res. Lett., v. 32(18).
Series
Keyword
Rights Statement
Publisher
Language
Replaces
Additional Information
  • description.provenance : Approved for entry into archive by Linda Kathman(linda.kathman@oregonstate.edu) on 2010-03-03T22:03:14Z (GMT) No. of bitstreams: 1 Woodgate_et_al_GRL_2005.pdf: 632185 bytes, checksum: a69a710d68b81c1210ed328a69e9d1c9 (MD5)
  • description.provenance : Made available in DSpace on 2010-03-03T22:03:14Z (GMT). No. of bitstreams: 1 Woodgate_et_al_GRL_2005.pdf: 632185 bytes, checksum: a69a710d68b81c1210ed328a69e9d1c9 (MD5) Previous issue date: 2005-09-29
  • description.provenance : Submitted by David Moynihan (dmscanner@gmail.com) on 2010-03-03T21:25:37Z No. of bitstreams: 1 Woodgate_et_al_GRL_2005.pdf: 632185 bytes, checksum: a69a710d68b81c1210ed328a69e9d1c9 (MD5)

Relationships

In Administrative Set:
Last modified: 07/25/2017

Downloadable Content

Download PDF
Citations:

EndNote | Zotero | Mendeley

Items