Time scales and structure of topographic Rossby waves and meanders in the deep Gulf Stream

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ID: 296776
1986
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Abstract
During July-November 1982, current and temperature records were collected from six current meters spanning the lower 2000 m of the water column on two moorings in the Gulf Stream northeast of Cape Hatteras, N.C.Frequency domain EOF analysis of the velocity cross-spectra reveals that there are two kinematically distinct wave processes present in the subinertial range, identifiable as topographic Rossby wave and meander-associated motions, which are energetically dominant at periods longer than and shorter than 14 days, respectively.Simultaneous thermocline depth measurements obtained using inverted echo sounders show that the low-frequency topographic Rossby wave motions are uncoupled with near-surface displacements of the Gulf Stream path, but that cross-stream velocity fluctuations in the 14-day and 5-day period bands are associated with vertically coherent meanders of the Gulf Stream temperature front.
Reference Key
openalex_W2060351965 Use this key to autocite in the manuscript while using SciMatic Manuscript Manager or Thesis Manager
Authors William E. Johns, D. Randolph Watts
Journal journal of marine research
Year 1986
DOI
10.1357/002224086788405356
URL
https://doi.org/10.1357/002224086788405356
Keywords Keywords not found

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