Method for Detection of Meteotsunami Propagation in the Yellow Sea: Reported Cases

Kim, Myung‐Seok; Eom, Hyun-Min; Lim, Eun-Pyo; Lee, Chan-Kyu; You, Sung Hyup; Woo, Seung‐Buhm

doi:10.2112/si95-220.1

Cited by 3 publications

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“…phase relationship between pressure jump and high-frequency sea level (Kim et al, 2019); and spread of daily maximum amplitudes to multiple tide gauges, more than three tide gauges (Kim et al, 2020).…”

Section: Characteristics Of the Accident Eventsmentioning

confidence: 99%

“…Just one meteotsunami event was detected at the BR tide gauge over the past decade. The BR tide gauge is a site with an extremely low level of background noise that has not exceeded 10 cm except for the event of March 31, 2007, which is the largest meteotsunami event of the accident (Kim et al, 2020). The most frequent meteotsunamis occurred at the AH and DH harbour tide gauges, often followed by meteotsunami-induced harbour seiches (Eom et al, 2012;Kim et al, 2016;.…”

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confidence: 99%

“…The most frequent meteotsunamis occurred at the AH and DH harbour tide gauges, often followed by meteotsunami-induced harbour seiches (Eom et al, 2012;Kim et al, 2016;. In the meteotsunami events of the accidents (31/03/2007, 04/05/2008, and 26/04/2011), significant amplitudes of the meteotsunamis were first recorded at the DH tide gauge (Kim et al, 2020). The DH tide gauge as the westernmost observation point of the eastern coast of the yellow sea (Fig.…”

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confidence: 99%

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Pressure-forced meteotsunami occurrences in the eastern Yellow Sea over the past decade (2010–2019): monitoring guidelines

Kim

Woo

Eom

et al. 2021

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Abstract. The eastern Yellow Sea meteotsunami occurrences between 2010 and 2019 and guidelines derived using favourable conditions of pressure disturbance (10 min rate of air pressure change) for meteotsunami generation are described. A total of 34 meteotsunami events over the past decade can be classified based on a current meteotsunami monitoring and observation system. 1 min intervals of mean sea level pressure and sea level observations from 89 meteorological stations and 16 tide gauges are analysed. Most of the classified meteotsunami events (76 %, 26/34) in the eastern Yellow Sea are found to be between February and June during the winter-to-summer transition, which shows a strong seasonal trend. The meteotsunami occurrences are spatially frequent at the DaeHeuksando (DH) tide gauge, known as a beacon tide gauge of the observation system. It appears that the specific characteristics (intensity, occurrence rate, and propagation) of the pressure disturbance are in common on extreme meteotsunami events that are classified by applying the hazardous meteotsunami conditions among the 34 events. For a risk level assessment of the eastern Yellow Sea meteotsunami occurrences, favourable conditions of the pressure disturbance for meteotsunami generation are utilized. Overall, this study can provide useful and practical guidelines such as operation period, potential hot spot, and risk level to monitoring system operators when operating the monitoring system of the Yellow Sea.

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Section: Characteristics Of the Accident Eventsmentioning

confidence: 99%

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confidence: 99%

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