Evidence for nonlinear interaction between internal waves of inertial and semidiurnal frequency

被引：56
|
作者：
Mihaly, SF
Thomson, RE
Rabinovich, AB
机构：
[1] Inst Ocean Sci, Sidney, BC V8L 4B2, Canada
[2] Univ British Columbia, Vancouver, BC V5Z 1M9, Canada
[3] PP Shirshov Oceanol Inst, Moscow, Russia
来源：
GEOPHYSICAL RESEARCH LETTERS | 1998年 / 25卷 / 08期
关键词：
D O I：
10.1029/98GL00722
中图分类号：
P [天文学、地球科学];
学科分类号：
07 ;
摘要：
Observational evidence is presented for pervasive nonlinear interaction between inertial and Ma frequency oscillations in the northeast Pacific. Enhanced currents at the sum frequency (termed the "fM(2) frequency") have the rotary spectral properties of freely propagating waves suggesting permanent energy exchange from the inertial and semidiurnal bands to the fM(2) band. The interaction may be responsible for the greater than predicted decay of inertial energy observed in the ocean and may contribute significantly to oceanic mixing.
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收藏
页码：1205 / 1208
页数：4
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