منابع مشابه
1 . WALLS OF WATER Tsunamis
Tsunamis I got outside my hotel, and saw that the ocean was now level with our island. To my horror, a wall of water— boiling, frothing, angry as hell—was bearing straight down at us, and a strange mist that looked like thick fog blocked out the sun. I stopped breathing. .. . —Dave Lowe, eyewitness to the 26 December 2004 tsunami on the South Ari Atoll in the Maldives W e relate Christmas to ha...
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A time-reversal mirror is, roughly speaking, a device which is capable of receiving a signal in time, keeping it in memory and sending it back into the medium in the reversed direction of time. A brief mathematical review of the time-reversal theory is presented in the context of the linear shallow water equations. In particular an explicit expression is given for the refocused pulse in the sim...
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We consider the stability of periodic gravity free-surface water waves traveling downstream at a constant speed over a shear flow of finite depth. In case the free surface is flat, a sharp criterion of linear instability is established for a general class of shear flows with inflection points and the maximal unstable wave number is found. Comparison to the rigid-wall setting testifies that free...
متن کاملDissipation of Narrow-Banded Surface Water Waves
Our overall objective is to find mathematical models that describe accurately how waves in nature propagate and evolve. One process that affects evolution is dissipation (Segur et al., J Fluid Mech 539:229–271, 2005), so in this paper we explore several models in the literature that incorporate various dissipative physical mechanisms. In particular, we seek theoretical models that (1) agree wit...
متن کاملIonospheric detection of gravity waves induced by tsunamis
Juliette Artru,1 Vesna Ducic,2 Hiroo Kanamori,1 Philippe Lognonné2 and Makoto Murakami3 1Seismological Laboratory MC 252-21, California Institute of Technology, Pasadena, CA 91125, USA. E-mail: [email protected] 2Institut de Physique du Globe de Paris, Département de Géophysique Spatiale et Planétaire, UMR7096, 4 avenue de Neptune, 94107 Saint-Maur-des-Fossés, France 3Crustal Deformation...
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ژورنال
عنوان ژورنال: Journal of Dynamics and Differential Equations
سال: 2006
ISSN: 1040-7294,1572-9222
DOI: 10.1007/s10884-006-9031-4