Scale interaction between tropical instability waves and low-frequency oceanic flows SCIE SCOPUS

Cited 6 time in WEB OF SCIENCE Cited 6 time in Scopus
Title
Scale interaction between tropical instability waves and low-frequency oceanic flows
Author(s)
Kug, Jong-Seong; Ham, Yoo-Geun; Jin, Fei-Fei; Kang, In-Sik
Publication Year
2010-01-30
Abstract
Tropical instability waves (TIWs), prevailing in the tropical Pacific and Atlantic Oceans, interact with the low-frequency oceanic flow. It is known that TIWs act as negative feedback to ENSO through a thermal process. In this study, we examine the dynamical eddy feedback of TIWs. We show that in terms of physical processes, the dynamical TIW feedback is very similar to the atmospheric synoptic eddy feedback in the extratropics. For example, the mean seasonal eddy vorticity flux of TIWs can be largely explained by the left-hand rule, which states that eddy vorticity fluxes are predominantly directed toward the left-hand side of the oceanic flow. Therefore, they act as positive feedback to the low-frequency oceanic flow. We also show that the positive eddy feedback is obtained from eddy structure changes induced by the low-frequency flow. Citation: Kug, J.-S., Y.-G. Ham, F.-F. Jin, and I.-S. Kang (2010), Scale interaction between tropical instability waves and low-frequency oceanic flows, Geophys. Res. Lett., 37, L02710, doi:10.1029/2009GL041020.
ISSN
0094-8276
URI
https://sciwatch.kiost.ac.kr/handle/2020.kiost/4143
DOI
10.1029/2009GL041020
Bibliographic Citation
GEOPHYSICAL RESEARCH LETTERS, v.37, 2010
Publisher
AMER GEOPHYSICAL UNION
Subject
EQUATORIAL PACIFIC; VARIABILITY; ATLANTIC; MODEL
Type
Article
Language
English
Document Type
Article
Publisher
AMER GEOPHYSICAL UNION
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