کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
4674139 | 1634242 | 2010 | 17 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
A mechanism of deep-ocean mixing due to near-inertial waves generated by flow over bottom topography
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موضوعات مرتبط
مهندسی و علوم پایه
علوم زمین و سیارات
علم هواشناسی
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چکیده انگلیسی
This article describes a remarkable effect of the horizontal component of the Coriolis vector, which is traditionally neglected in geophysical fluid wave theory, for the generation of inertio-gravity waves caused by flow over topography. Earlier an initial-value approach was used to calculate the evolutions of internal waves generated by atmospheric forcing in the linear Boussinesq model as done by many investigators for the study of near-inertial waves in the ocean. In this study, however, we focused on the mechanism of generating near-inertial waves by a bottom forcing with various periods. It is shown that the non-traditional Coriolis effects can significantly enhance the generation of near-inertial waves. Moreover, the intensity of generated near-inertial waves increases as the period of bottom forcing approaches to the local inertial period, suggesting the importance of tidal flows for generating near-inertial waves in deep ocean near critical latitudes. It is inferred that such near-inertial waves may contribute to a mechanism of deep-ocean mixing.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Dynamics of Atmospheres and Oceans - Volume 49, Issues 2â3, April 2010, Pages 124-140
Journal: Dynamics of Atmospheres and Oceans - Volume 49, Issues 2â3, April 2010, Pages 124-140
نویسندگان
Akira Kasahara,