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Detailed Reference Information |
Chen, C., Reid, R.O. and Nowlin, W.D. (1996). Near-inertial oscillations over the Texas-Louisiana shelf. Journal of Geophysical Research 101: doi: 10.1029/95JC03395. issn: 0148-0227. |
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Wind-induced, near-inertial oscillations over the Texas-Louisiana shelf in spring and summer 1992 are described using the current and wind observations taken during the first year of the Texas-Louisiana Shelf Circulation and Transport Processes Study (LATEX A). Rotary spectral analysis shows clockwise-rotating energy peaks at near-inertial frequencies for records from all current meter moorings after the suppression of principal tidal signals. The vertical structure of near-inertial oscillations is characterized by a first baroclinic mode with a near 180¿ phase difference between the upper mixed layer and the lower stratified layer. The oscillations are intermittent with a modulation timescale of about 5--10 days. They are surface-intensified and have maximum values near the shelf break, decaying gradually toward the coast but rapidly offshore. Near-inertial oscillations appear to accompany a sudden change of the wind stress during frontal passages. Diagnostic analysis suggests that the large near-inertial oscillations over the LATEX shelf are mainly generated by high-frequency (near-inertial) variation of the wind stress accompanying the passage of atmospheric fronts. When the downward transfer of the near-inertial energy to the deep stratified layer is small, a simple mixed layer model forced by the observed wind stress provides a reasonable prediction of the near-inertial currents in the mixed layer. ¿ American Geophysical Union 1996 |
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Abstract |
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Keywords
Oceanography, Physical, Internal and inertial waves, Oceanography, Physical, Coriolis effects, Oceanography, Physical, Currents, Oceanography, Physical, Surface waves and tides |
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Publisher
American Geophysical Union 2000 Florida Avenue N.W. Washington, D.C. 20009-1277 USA 1-202-462-6900 1-202-328-0566 service@agu.org |
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