NDLI: Potential hazards and dynamical analysis of interfacial solitary wave interactions

Content Provider	Springer Nature Link
Author	Hsu, J. R. C. Cheng, M. H. Chen, Chen Yuan
Copyright Year	2012
Abstract	Over the last few decades, a lot of attention has been concentrated on the consequences of marine impacts, especially those caused by the tsunami wave train. Internal solitary waves are similar to the surface waves that commonly occur in the waters of the ocean or large lakes and can have significant effects on oceanic mixing, climate change, the movement of submerged plankton, and the weathering of geological structures. This motion can be severe enough to create natural hazards, such as submarine tsunamis in the ocean. These could also even occur in large lakes. Numerical modeling has shown that the waveform of a soliton that interacts with others of a similar kind would emerge unchanged from the collision, except for a phase shift. However, the results from laboratory experiments are rather limited, despite the successful generation of ISWs using a collapse mechanism in a wave flume. This paper reports on some interesting facts compiled from the results of a series of laboratory experiments on the investigation of the head-on collision of two ISWs. Our results confirm that the waveforms of two depression ISWs will more or less retain their initial shape after a head-on collision. However, the transmitted wavelength will broaden when two elevation ISWs collide, perhaps affected by bottom friction. Overall, the resulting waveforms induced by such head-on collisions agree well with the theoretical predictions for depression ISWs, regardless of their scale of amplitude, but the results are only valid for elevated waveforms of large amplitude.
Starting Page	255
Ending Page	278
Page Count	24
File Format	PDF
ISSN	0921030X
Journal	Natural Hazards
Volume Number	65
Issue Number	1
e-ISSN	15730840
Language	English
Publisher	Springer Netherlands
Publisher Date	2012-09-18
Publisher Place	Dordrecht
Access Restriction	One Nation One Subscription (ONOS)
Subject Keyword	Interfacial solitary wave (ISW) Potential hazards Dynamical analysis Laboratory experiments Geophysics/Geodesy Environmental Management Civil Engineering Natural Hazards Geotechnical Engineering & Applied Earth Sciences Hydrogeology
Content Type	Text
Resource Type	Article
Subject	Atmospheric Science Water Science and Technology

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