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Content Provider | SpringerLink |
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Author | Vilibić, I. Horvath, K. Strelec Mahović, N. Monserrat, S. Marcos, M. Amores, Á. Fine, I. |
Copyright Year | 2013 |
Abstract | We investigated the atmospheric processes and physics that were active during a tsunami-like event hitting Boothbay Harbor area (Maine, USA) on 28 October 2008. The data collected by tide gauges, ground and sounding stations and meteo–ocean buoys in the area were analyzed, together with satellite and radar images. The atmospheric processes were reproduced by the weather research and forecasting model, verified by in situ and remote sensing data. A cold front moved over the area at the time of the event, with embedded convective clouds detected by satellite and radar data and the internal gravity waves (IGWs) detected by radar and reproduced by the model at the rear of the frontal precipitation band. According to the model, the IGWs that passed over Boothbay Harbor generated strong ground air-pressure oscillations reaching 2.5 hPa/3 min. The IGWs were ducted towards the coast without significant dissipation, propagating in a stable near-surface layer capped by an instability at approximately 3.5 km height and satisfying all conditions for their maintenance over larger areas. The intensity, speed and direction of the IGWs were favourable for generation of a meteotsunami wave along the Gulf of Maine shelf. Operational observation systems were not capable of sufficiently capturing the ground disturbance due to a too coarse sampling rate, while the numerical model was found to be a useful tool in eventual future detection and warning systems. |
Starting Page | 25 |
Ending Page | 53 |
Page Count | 29 |
File Format | |
ISSN | 0921030X |
Journal | Natural Hazards |
Volume Number | 74 |
Issue Number | 1 |
e-ISSN | 15730840 |
Language | English |
Publisher | Springer Netherlands |
Publisher Date | 2013-08-29 |
Publisher Place | Dordrecht |
Access Restriction | Subscribed |
Subject Keyword | Meteotsunami Meteo and ocean data Mesoscale atmospheric modelling Atmospheric gravity waves U.S. East Coast Natural Hazards Hydrogeology Geophysics/Geodesy Geotechnical Engineering & Applied Earth Sciences Civil Engineering Environmental Management |
Content Type | Text |
Resource Type | Article |
Subject | Atmospheric Science Water Science and Technology |
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