FastFind »   Lastname: doi:10.1029/ Year: | Advanced Search  

AGU: Geophysical Research Letters

 

Keywords

  • barotropic
  • Rossby wave
  • Gulf Stream

Index Terms

  • Oceanography: Physical: Planetary waves
  • Oceanography: Physical: Eddies and mesoscale processes
  • Oceanography: Physical: Western boundary currents
  • Oceanography: Physical: Topographic/bathymetric interactions
  • Oceanography: General: Numerical modeling

Abstract

GEOPHYSICAL RESEARCH LETTERS, VOL. 34, L23613, 6 PP., 2007
doi:10.1029/2007GL031937

Barotropic Rossby wave radiation from a model Gulf Stream

Arthur J. Miller

Climate Research Division, Scripps Institution of Oceanography, University of California, San Diego, La Jolla, California, USA

Douglas J. Neilson

Climate Research Division, Scripps Institution of Oceanography, University of California, San Diego, La Jolla, California, USA

Douglas S. Luther

School of Ocean and Earth Science Technology, University of Hawaii at Manoa, Honolulu, Hawaii, USA

Myrl C. Hendershott

Climate Research Division, Scripps Institution of Oceanography, University of California, San Diego, La Jolla, California, USA

Bruce D. Cornuelle

Climate Research Division, Scripps Institution of Oceanography, University of California, San Diego, La Jolla, California, USA

Peter F. Worcester

Climate Research Division, Scripps Institution of Oceanography, University of California, San Diego, La Jolla, California, USA

Matthew A. Dzieciuch

Climate Research Division, Scripps Institution of Oceanography, University of California, San Diego, La Jolla, California, USA

Brian D. Dushaw

Applied Physics Laboratory, University of Washington, Seattle, Washington, USA

Bruce M. Howe

Applied Physics Laboratory, University of Washington, Seattle, Washington, USA

Julia C. Levin

Institute of Marine and Coastal Sciences, Rutgers University, New Brunswick, New Jersey, USA

Hernan G. Arango

Institute of Marine and Coastal Sciences, Rutgers University, New Brunswick, New Jersey, USA

Dale B. Haidvogel

Institute of Marine and Coastal Sciences, Rutgers University, New Brunswick, New Jersey, USA

The barotropic Rossby wave field in the North Atlantic Ocean is studied in an eddy-resolving ocean model simulation. The meandering model Gulf Stream radiates barotropic Rossby waves southward through preferred corridors defined by topographic features. The smoother region between the Bermuda Rise and the mid-Atlantic Ridge is a particularly striking corridor of barotropic wave radiation in the 20–50 day period band. Barotropic Rossby waves are also preferentially excited at higher frequencies over the Bermuda Rise, suggesting resonant excitation of topographic Rossby normal modes. The prevalence of these radiated waves suggests that they may be an important energy sink for the equilibrium state of the Gulf Stream.

Received 27 August 2007; accepted 29 October 2007; published 12 December 2007.

Citation: Miller, A. J., et al. (2007), Barotropic Rossby wave radiation from a model Gulf Stream, Geophys. Res. Lett., 34, L23613, doi:10.1029/2007GL031937.

Cited By

Please wait one moment ...