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    On the internal wave variability during the Internal Wave Experiment (IWEX)

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    WHOI 81-17.pdf (5.957Mb)
    Date
    1981-04
    Author
    Frankignoul, Claude  Concept link
    Joyce, Terrence M.  Concept link
    Metadata
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    Citable URI
    https://hdl.handle.net/1912/10237
    DOI
    10.1575/1912/10237
    Keyword
    Internal waves
    Abstract
    The relation between internal wave variability and larger and smaller scales of motion is investigated, using the IWEX data set. To investigate the role of internal waves in the vertical diffusion of large scale momentum, the time variability of the vertical flux of horizontal internal wave momentum (estimated from temperature and current data) is compared to that of the mean vertical shear. It is found that internal waves cannot cause a vertical viscosity as large as proposed by Müller (1976), but that the data are too noisy to detect a possible wave‐induced viscosity in absolute value of the order of 10−2 m2 s−1 or less. Similarities in the time behavior of the total internal wave energy and that of the square mean vertical shear suggest that some kind of dynamical coupling exists between internal waves and larger scale flows. There is some evidence that the level of temperature finestructure activity also varies in a related way. An analysis of CTD station data taken during Mode demonstrates the mappability of the finestructure activity, and again suggests a relation with the geostrophic eddy flow.
    Description
    Also published as: Journal of Geophysical Research 84 (1979): 769-776.
    Collections
    • Physical Oceanography (PO)
    • WHOI Technical Reports
    Suggested Citation
    Technical Report: Frankignoul, Claude, Joyce, Terrence M., "On the internal wave variability during the Internal Wave Experiment (IWEX)", 1981-04, DOI:10.1575/1912/10237, https://hdl.handle.net/1912/10237
     

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