Semidiurnal Baroclinic Tides on the Central Oregon Inner Shelf Public Deposited

http://ir.library.oregonstate.edu/concern/articles/df65vd23q

This is the publisher’s final pdf. The published article is copyrighted by American Meteorological Society and can be found at:  https://www2.ametsoc.org/ams/index.cfm/publications/journals/journal-of-physical-oceanography/

Descriptions

Attribute NameValues
Creator
Abstract or Summary
  • Semidiurnal velocity and density oscillations are examined over the mid- and inner continental shelf near Heceta Bank on the Oregon coast. Measurements from two long-term observation networks with sites on and off the submarine bank reveal that both baroclinic velocities and displacements are dominated by the first mode, with larger velocities on the midshelf and northern parts of the bank. Midshelf sites have current ellipses that are near the theoretical value for single, progressive internal tidal waves compared to more linearly polarized currents over the inner shelf. Baroclinic current variability is not correlated to the spring-neap cycle and is uncorrelated between mooring locations. An idealized model of two internal waves propagating from different directions reproduces some of the observed variability in semidiurnal ellipse parameters. At times, the phasing between moorings along a cross-shelf transect are consistent with onshelf wave propagation, a characteristic also present in the output of a three-dimensional regional circulation model. Regional wind-driven upwelling/downwelling influences stratification at all shelf moorings. At locations north of the bank, stronger baroclinic velocities were found during periods of higher background stratification.
Resource Type
DOI
Date Available
Date Issued
Citation
  • Suanda, S. H., & Barth, J. A. (2015). Semidiurnal Baroclinic Tides on the Central Oregon Inner Shelf. Journal of Physical Oceanography, 45(10), 2640-2659. doi:10.1175/JPO-D-14-0198.1
Series
Keyword
Rights Statement
Funding Statement (additional comments about funding)
Publisher
Peer Reviewed
Language
Replaces

Relationships

Parents:

This work has no parents.

Last modified

Downloadable Content

Download PDF

Items