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Nonlinear Processes in Geophysics An interactive open-access journal of the European Geosciences Union
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NPG | Articles | Volume 26, issue 3
Nonlin. Processes Geophys., 26, 283–290, 2019
https://doi.org/10.5194/npg-26-283-2019
© Author(s) 2019. This work is distributed under
the Creative Commons Attribution 4.0 License.
Nonlin. Processes Geophys., 26, 283–290, 2019
https://doi.org/10.5194/npg-26-283-2019
© Author(s) 2019. This work is distributed under
the Creative Commons Attribution 4.0 License.

Research article 21 Aug 2019

Research article | 21 Aug 2019

Explosive instability due to flow over a rippled bottom

Anirban Guha and Raunak Raj
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Status: closed
Status: closed
AC: Author comment | RC: Referee comment | SC: Short comment | EC: Editor comment
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AR: Author's response | RR: Referee report | ED: Editor decision
AR by Anirban Guha on behalf of the Authors (06 Jun 2019)  Author's response    Manuscript
ED: Referee Nomination & Report Request started (07 Jun 2019) by Roger Grimshaw
RR by Anonymous Referee #1 (19 Jun 2019)
RR by Anonymous Referee #2 (09 Jul 2019)
ED: Publish subject to minor revisions (review by editor) (09 Jul 2019) by Roger Grimshaw
AR by Anirban Guha on behalf of the Authors (22 Jul 2019)  Author's response    Manuscript
ED: Publish subject to technical corrections (22 Jul 2019) by Roger Grimshaw
AR by Anirban Guha on behalf of the Authors (23 Jul 2019)  Author's response    Manuscript
Publications Copernicus
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Short summary
Waves observed on the ocean surface often nonlinearly interact among themselves and undergo algebraic growth – a mechanism known as resonant triad interaction. Bragg resonance is a special resonant triad in which one of the constituent waves is the ocean's undulating bottom boundary. Here we show that, in the presence of an ocean current, two surface waves or a surface wave and an interfacial wave (wave existing at the ocean pycnocline) can undergo exponential growth.
Waves observed on the ocean surface often nonlinearly interact among themselves and undergo...
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