Nonlinear Processes in Geophysics
Nonlinear Processes in Geophysics
NPG
Articles | Volume 29, issue 2
Articles | Volume 29, issue 2
https://doi.org/10.5194/npg-29-141-2022
© Author(s) 2022. This work is distributed under
the Creative Commons Attribution 4.0 License.
Special issue:
https://doi.org/10.5194/npg-29-141-2022
© Author(s) 2022. This work is distributed under
the Creative Commons Attribution 4.0 License.
Articles | Volume 29, issue 2
Research article
 | 
04 Apr 2022
Research article |  | 04 Apr 2022

Regional study of mode-2 internal solitary waves at the Pacific coast of Central America using marine seismic survey data

Wenhao Fan, Haibin Song, Yi Gong, Shun Yang, and Kun Zhang

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Short summary
Compared with mode-1 internal solitary waves (ISWs), mode-2 ISWs in the ocean require further study. A mass of mode-2 ISWs developing at the Pacific coast of Central America have been imaged using seismic reflection data. We find that the relationship between the mode-2 ISW propagation speed and amplitude is diverse. It is affected by seawater depth, pycnocline depth, and pycnocline thickness. The ISW vertical amplitude structure is affected by the ISW nonlinearity and the pycnocline deviation.
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Nonlinear internal waves