Field observations of meteotsunami locally called “abiki” in Urauchi Bay, Kami-Koshiki Island, Japan

Asano, Toshiyuki; Yamashiro, Toru; Nishimura, Norihiro

doi:10.1007/s11069-012-0330-2

Cited by 17 publications

(15 citation statements)

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“…Many questions still remain in regard to meteotsunami formation and the threat posed by impacts on coastal communities although extensive research has been carried out to understand and document meteotsunami events around the world [ Jansa et al ., ; Candella , ; Dragani et al ., ; Šepić et al ., ; Thomson et al ., ; Asano et al ., ; Pasquet and Vilibić , ; Vilibić et al ., ]. Recent work has also described the danger associated with reflected waves [ Pasquet and Vilibić , ; Lipa et al ., ] and the unique threats posed by edge waves and wave focusing due to enclosed basins such as the Great Lakes [ Bechle and Wu , ; Šepić and Rabinovich , ].…”

Section: Discussionmentioning

confidence: 99%

“…Meteotsunami events have been documented in several countries around the world, causing destructive impacts to coastal communities while being difficult to forecast [ Candela et al ., ; Jansa et al ., ; Vilibić et al ., ; Dragani et al ., ; Šepić et al ., ; Thomson et al ., ; Asano et al ., ; Pasquet and Vilibić , ; Vilibić et al ., ]. Meteotsunamis are waves with periods between 2 h and 2 min that are generated by an atmospheric disturbance and behave more like seismic tsunami waves than storm surge or seiche events [ Monserrat et al ., ].…”

Section: Introductionmentioning

confidence: 99%

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Reconstruction of a meteotsunami in Lake Erie on 27 May 2012: Roles of atmospheric conditions on hydrodynamic response in enclosed basins

Anderson

Bechle

et al. 2015

JGR Oceans

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On 27 May 2012, atmospheric conditions gave rise to two convective systems that generated a series of waves in the meteotsunami band on Lake Erie. The resulting waves swept three swimmers a 0.5 mi offshore, inundated a marina, and may have led to a capsized boat along the southern shoreline. Analysis of radial velocities from a nearby radar tower in combination with coastal meteorological observation indicates that the convective systems produced a series of outflow bands that were the likely atmospheric cause of the meteotsunami. In order to explain the processes that led to meteotsunami generation, we model the hydrodynamic response to three meteorological forcing scenarios: (i) the reconstructed atmospheric disturbance from radar analysis, (ii) simulated conditions from a high‐resolution weather model, and (iii) interpolated meteorological conditions from the NOAA Great Lakes Coastal Forecasting System. The results reveal that the convective systems generated a series of waves incident to the southern shore of the lake that reflected toward the northern shoreline and reflected again to the southern shore, resulting in spatial wave focusing and edge wave formation that combined to impact recreational users near Cleveland, OH. This study illustrates the effects of meteotsunami development in an enclosed basin, including wave reflection, focusing, and edge wave formation as well as temporal lags between the causative atmospheric conditions and arrival of dangerous wave conditions. As a result, the ability to detect these extreme storms and predict the hydrodynamic response is crucial to reducing risk and building resilient coastal communities.

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Section: Discussionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Reconstruction of a meteotsunami in Lake Erie on 27 May 2012: Roles of atmospheric conditions on hydrodynamic response in enclosed basins

Anderson

Bechle

et al. 2015

JGR Oceans

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“…Upon reaching the coast, long-ocean waves further grow because of decrease of sea depth [Hibiya and Kajiura, 1982;Orlić et al, 2010]. Final wave amplification occurs when bathymetry directs incoming waves toward the heads of bays and harbors with high-amplification factors, in which meteotsunami waves can become several meters high due to both narrowing and shallowing of the bay and harbor resonance (occurring when there is an incoming train of long-ocean waves) [Hibiya and Kajiura, 1982;Orlić et al, 2010;Asano et al, 2012;Vilibić et al, 2014]. 2014]; however, maximum wave heights at meteotsunami hot spots are often underestimated because of too coarse model resolution in coastal areas and especially in elongated bays and inlets Orlić et al, 2010].…”

Section: Introductionmentioning

confidence: 99%

Northern Adriatic meteorological tsunamis: Assessment of their potential through ocean modeling experiments

2015

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Potential for generation of meteotsunami waves via open ocean resonance has been documented for the shallow northern Adriatic, based on a set of barotropic numerical modeling experiments. Model simulations were forced by a bell‐shaped traveling atmospheric (air pressure, wind) disturbance, with shape and propagation parameters chosen in accordance with measurements done during several observed northern Adriatic meteotsunamis. Air pressure disturbances were found to generate much larger meteotsunami waves than wind disturbances, with wind disturbances having a limited influence in the very coastal and shallow areas only. Numerical simulations reveal that the most important factor for generation of large meteotsunami waves is matching between the speed of the atmospheric disturbance and the speed of long‐ocean waves. Already a small (∼10%) deviation from resonant conditions stops the wave growth and dramatically decreases height of predicted waves. A train of atmospheric disturbances can significantly increase maximum wave heights at selected locations at which multiple reflections and superimpositions of meteotsunami waves occur. Sensitivity of model simulations to resonant conditions and limited cross‐propagation width of atmospheric disturbance explain the localization of destructive meteotsunami waves in a limited area during destructive historic events. Mapping of maximum predicted wave heights indicates places with large meteotsunami hazard potential, matching the locations where real events were observed, and may be a useful tool for assessing vulnerability and risks in coastal areas during extreme sea level events.

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“…This event as well as the Boothbay (Maine) meteotsunami in 2008 ) and the Daytona Beach (Florida) event in 1992 (Churchill et al 1995;Sallenger et al 1995) are three U.S. examples of many meteotsunamis around the world that have proved to be hazardous. Other locations where meteotsunami have notably struck include the Balearic Islands (Monserrat et al 1991), the Adriatic Sea (Vilibić et al 2004), Japan (Hibiya and Kajiura 1982;Asano et al 2012), and the Kuril Islands (Rabinovich and Monserrat 1998). Current understanding of meteotsunamis comes from both theoretical/numerical studies (e.g., Vilibić 2008;Vennell 2010) and careful examination of case study observations (Rabinovich and Monserrat 1996;Monserrat et al 2006).…”

Section: Introductionmentioning

confidence: 99%

“…In many of the locations were meteotsunamis were damaging, harbor resonance (e.g., Raichlen and Lee 1992) was a critical factor. Several studies highlight the use of spectral analysis to examine many of these effects (e.g., Rabinovich and Monserrat 1998;Vilibić et al 2005;Monserrat et al 2006;Asano et al 2012).…”

Section: Introductionmentioning

confidence: 99%

A framework for the probabilistic analysis of meteotsunamis

Geist

Brink

Gove³

2014

Nat Hazards

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A probabilistic technique is developed to assess the hazard from meteotsunamis. Meteotsunamis are unusual sea-level events, generated when the speed of an atmospheric pressure or wind disturbance is comparable to the phase speed of long waves in the ocean. A general aggregation equation is proposed for the probabilistic analysis, based on previous frameworks established for both tsunamis and storm surges, incorporating different sources and source parameters of meteotsunamis. Parameterization of atmospheric disturbances and numerical modeling is performed for the computation of maximum meteotsunami wave amplitudes near the coast. A historical record of pressure disturbances is used to establish a continuous analytic distribution of each parameter as well as the overall Poisson rate of occurrence. A demonstration study is presented for the northeast U.S. in which only isolated atmospheric pressure disturbances from squall lines and derechos are considered. For this study, Automated Surface Observing System stations are used to determine the historical parameters of squall lines from 2000 to 2013. The probabilistic equations are implemented using a Monte Carlo scheme, where a synthetic catalog of squall lines is compiled by sampling the parameter distributions. For each entry in the catalog, ocean wave amplitudes are computed using a numerical hydrodynamic model. Aggregation of the results from the Monte Carlo scheme results in a meteotsunami hazard curve that plots the annualized rate of exceedance with respect to maximum event amplitude for a particular location along the coast. Results from using multiple synthetic catalogs, resampled from the parent parameter distributions, yield mean and quantile

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Field observations of meteotsunami locally called “abiki” in Urauchi Bay, Kami-Koshiki Island, Japan

Cited by 17 publications

References 16 publications

Reconstruction of a meteotsunami in Lake Erie on 27 May 2012: Roles of atmospheric conditions on hydrodynamic response in enclosed basins

Reconstruction of a meteotsunami in Lake Erie on 27 May 2012: Roles of atmospheric conditions on hydrodynamic response in enclosed basins

Northern Adriatic meteorological tsunamis: Assessment of their potential through ocean modeling experiments

A framework for the probabilistic analysis of meteotsunamis

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