MARINE EXTREME SURFACE DISTURBANCESMI

Section
Hazardous processes in the hydrosphere: fundamental and engineering aspects
  • Grigory I. Dolgikh V.I. Il’ichev Pacific Oceanological Institute FEB RAS, Vladivostok, Russia
  • Stanislav G. Dolgikh V.I. Il’ichev Pacific Oceanological Institute FEB RAS, Vladivostok, Russia https://orcid.org/0000-0001-9828-5929
Keywords: extreme disturbances, killer waves, return phenomenon, intermode energy transfer, wind waves, laser meter of hydrosphere pressure variations
(+) Abstract

Along with the tsunami, killer waves are among the catastrophic phenomena of the World Ocean, which bring enormous losses to both people and marine objects created by human hands. We call them more moderate-marine extreme surface disturbances. This name is due to the fact that the name of the killer wave, in our opinion, corresponds more to a tsunami. In the classical representation of wave excitation, they poorly fit the name of a wave. Nevertheless, their generally accepted name is killer waves. The article discusses the results of processing sections of recordings of a laser hydrosphere pressure variations meter installed on the shelf of the Sea of Japan at a depth of 27 m, in which marine disturbances are distinguished, similar in appearance to killer waves: "one sister", "two sisters", "three sisters". When processing the experimental data obtained for June 2007, the main modes of wind waves and infragravity sea waves responsible for the formation of the observed killer waves were identified. Extreme surface disturbances against the background of wind waves are strongly distinguished in amplitude and shape. The intermode energy transfer in the observed wave packet resembles in its behavior a modified Fermi-Paste-Ulam return, characteristic of oscillators-geoblocks of the Earth's crust. Energy transfer occurs between modes of different wave packets having different nature of formation. Thus, in the experimental data under consideration, the first wave packet corresponds to the wind range, and the second to the infragravity range.

(+) About the author(s)

Grigory I. Dolgikh,
V.I. Il’ichev Pacific Oceanological Institute FEB RAS, Vladivostok, Russia

eLibrary
SPIN-
код

ORCID ID

Scopus ID

Прочие

5241-3375

0000-0002-2806-3834

7003888822

A-7685-2014

Stanislav G. Dolgikh,
V.I. Il’ichev Pacific Oceanological Institute FEB RAS, Vladivostok, Russia

eLibrary (РИНЦ)
SPIN-
код

ORCID ID

Scopus ID

Прочие

1836-2541

0000-0001-9828-5929

6604069353

A-7684-2014

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Published
2022-02-10
How to Cite
Grigory I. Dolgikh, & Stanislav G. Dolgikh. (2022). MARINE EXTREME SURFACE DISTURBANCESMI. Hydrosphere. Hazard Processes and Phenomena, 3(4), 322-332. https://doi.org/10.34753/HS.2021.3.4.322

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