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.

Data sets

Raw Multi-Channel Seismic Shot Data from the Sandino Basin, offshore Nicaragua, acquired during R/V Maurice Ewing expedition EW0412 (2004) MGDS http://www.marine-geo.org/tools/search/entry.php?id=EW0412

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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.
Special issue