Articles | Volume 29, issue 2
Nonlin. Processes Geophys., 29, 141–160, 2022
https://doi.org/10.5194/npg-29-141-2022

Special issue: Nonlinear internal waves

Nonlin. Processes Geophys., 29, 141–160, 2022
https://doi.org/10.5194/npg-29-141-2022
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 et al.

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Cited articles

Bai, Y., Song, H., Guan, Y., and Yang, S.: Estimating depth of polarity conversion of shoaling internal solitary waves in the northeastern South China Sea, Cont. Shelf Res., 143, 9–17, https://doi.org/10.1016/j.csr.2017.05.014, 2017. 
Benjamin, T. B.: Internal waves of permanent form in fluids of great depth, J. Fluid Mech., 29, 559–592, https://doi.org/10.1017/S002211206700103X, 1967. 
Biescas, B., Sallarès, V., Pelegrí, J. L., Machín, F., Carbonell, R., Buffett, G., Dañobeitia, J. J., and Calahorrano, A.: Imaging meddy finestructure using multichannel seismic reflection data, Geophys. Res. Lett., 35, L11609, https://doi.org/10.1029/2008GL033971, 2008. 
Biescas, B., Armi, L., Sallarès, V., and Gràcia, E.: Seismic imaging of staircase layers below the Mediterranean Undercurrent, Deep-Sea Res. Pt. I, 57, 1345–1353, https://doi.org/10.1016/j.dsr.2010.07.001, 2010. 
Bogucki, D. J., Redekopp, L. G., and Barth, J.: Internal solitary waves in the Coastal Mixing and Optics 1996 experiment: Multimodal structure and resuspension, J. Geophys. Res.-Oceans, 110, C02024, https://doi.org/10.1029/2003JC002253, 2005. 
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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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