Detection and Characterization of Meteotsunamis in the Gulf of Genoa

Picco, Paola; Schiano, M. E.; Incardone, Silvio; Repetti, Luca; Demarte, Maurizio; Pensieri, Sara; Bozzano, Roberto

doi:10.3390/jmse7080275

Cited by 7 publications

(6 citation statements)

References 59 publications

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“…It can be seen that the peak energy reaches 0.1 in the oscillation period of 25-40 minutes. This result is almost the same as [11], who found the peak energy of the meteotsunami in 26-30 minutes. At other stations, no significant wavelet energy was seen in the tsunami band spectrum.…”

Section: High-frequency Sea Level Signalsupporting

confidence: 88%

Analysis of high waves and coastal flooding event in Manado in mid-January 2021 (meteotsunami perspective)

Firdaus,

Mawarni,

Sinurat

2023

IOP Conf. Ser.: Earth Environ. Sci.

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Meteotsunami is atmospheric-induced ocean waves at the frequency of tsunami waves (2 minutes-2 hours). On January 17, 2021, the high waves tsunami-like due to lousy weather superimposed with the high tide were reported hitting the coastal area of Manado City, North of Sulawesi. This research examined the characteristic of that tsunami wave-like phenomenon. The sea level, atmospheric data (i.e., wind and air pressure), and weather satellite imagery were used in this study. The sea level, air pressure, and wind data were filtered to remove the low-frequency signal to obtain the amplitude of the high-frequency signal. The results showed that a high-frequency sea level signal’s maximum wave height (peak to trough) is up to 0.4 m. This condition responded to the increase in high-frequency maximum wind speed reaching 11 m/s associated with the convective system, such as the Cumulonimbus cloud system, detected 10 hours before the maximum high-frequency sea-level event. These circumstances meet the meteotsunami criteria, but the other parameter, such as air pressure, is not.

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Section: High-frequency Sea Level Signalsupporting

confidence: 88%

Analysis of high waves and coastal flooding event in Manado in mid-January 2021 (meteotsunami perspective)

Firdaus,

Mawarni,

Sinurat

2023

IOP Conf. Ser.: Earth Environ. Sci.

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“…To prove that the multi-meteotsunami events, which occurred in a number of Mediterranean and Black Sea locations, are related to each other, Šepić et al (2015a) used intense 1 3 air pressure oscillations collected by different observing networks, which have become standard in recent decades. For other regions, measurements of high-frequency air pressure observations have also been used to investigate meteotsunamis, such as in the Black Sea (Vilibić et al 2010;Šepić et al 2018b), southwestern Sicily, the Maltese Islands (Drago 2009;Šepić et al 2018a) and the Gulf of Genoa (Picco et al 2019).…”

Section: Surface Manifestation Of Meteotsunamigenic Disturbancesmentioning

confidence: 99%

The Mediterranean and Black Sea meteotsunamis: an overview

et al. 2020

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This paper presents the first comprehensive review of the Mediterranean and Black Sea meteorological tsunamis or meteotsunamis (atmospherically induced destructive long ocean waves in the tsunami frequency band) based on the available literature, tools and services. The Mediterranean and Black Seas are micro-tidal basins; therefore, rapid sea level changes in the tsunami frequency band may strongly affect coastal regions and infrastructures and endanger human lives. The review also includes a succinct bibliography of Mediterranean and Black Sea meteotsunami papers and evaluates their structure in respect to geographical extent, the type of tools used (observations versus modelling) and source processes in the atmosphere versus ocean manifestations. This review continues with a presentation of major meteotsunami events and a discussion about their sources, the resonant transfer of energy towards the sea, their propagation towards shore and their interactions with bathymetry. Meteotsunami monitoring and forecasting systems are overviewed with respect to available observations, deterministic and stochastic modelling tools and operational early warning networks. This review includes an important assessment of operational and research gaps and ideas for improving research tools and understanding of various aspects of meteotsunamis. The authors believe and hope that this review will help researchers and services to increase or improve their capacities and skills for conducting better research on meteotsunamis, not just in the Mediterranean and Black Seas, but in all ocean basins around the world affected by this destructive and dangerous phenomenon.

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“…The principal seiches of the Ligurian Sea was identified in the sixties [33] and later modeled by Papa [34,35]. Its occurrence over the last 10 years was analyzed by Picco et al [36]. The principal oscillation period of the Ligurian Sea, whose amplitude can reach about 5 cm, was 3.6 h. Seiches did not occur very often but can last a few days.…”

Section: Tidal and Infragravity Variabilitymentioning

confidence: 99%

“…Spectral analysis also identified secondary seiches at 2.6 h and 2.1 h (Figure 2). Meteotsunamis detected in the Ligurian Sea are mainly generated by atmospheric pressure jumps or travelling perturbations [37] and are characterized by 26-30 min oscillations. The most frequently detected in the time series had an amplitude of about 10 cm.…”

Section: Tidal and Infragravity Variabilitymentioning

confidence: 99%

A Comparison between Coastal Altimetry Data and Tidal Gauge Measurements in the Gulf of Genoa (NW Mediterranean Sea)

Picco¹,

Vignudelli

Repetti³

2020

JMSE

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Satellite altimetry data from X-TRACK products were analyzed for an overall assessment of their capability to detect coastal sea level variability in the Ligurian Sea. Near-coastal altimetry data, collected from 2009 to 2016 along track n.044, were compared with simultaneous high frequency sampled data at the tidal station in Genoa (NW Mediterranean Sea). The two time series show a very good agreement: correlation between total sea level elevation from the altimeter and sea level variation from the tidal gauge is 0.92 and root mean square difference is 4.5 cm. Some relevant mismatches can be ascribed to the local high frequency coastal variability due to shelf and harbor oscillation detected at the tidal station, which might not be observed at the location of the altimetry points of measurement. The analysis evidences discrepancies (root mean square difference of 4.7 cm) between model results for open sea tides and harmonic analysis at the tidal station, mainly occurring at the annual and semiannual period. On the contrary, the important part of dynamic atmospheric correction due to the inverse barometer effect, well agrees with that computed at the tidal station.

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Detection and Characterization of Meteotsunamis in the Gulf of Genoa

Cited by 7 publications

References 59 publications

Analysis of high waves and coastal flooding event in Manado in mid-January 2021 (meteotsunami perspective)

Analysis of high waves and coastal flooding event in Manado in mid-January 2021 (meteotsunami perspective)

The Mediterranean and Black Sea meteotsunamis: an overview

A Comparison between Coastal Altimetry Data and Tidal Gauge Measurements in the Gulf of Genoa (NW Mediterranean Sea)

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