Jan 2005
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2005njph....7..129b&link_type=abstract
New Journal of Physics, Volume 7, Issue 1, pp. 129 (2005).
Physics
7
Scientific paper
By applying the technique of uniform asymptotic approximation to the oscillatory integrals representing tsunami wave profiles, the form of the travelling wave far from the source is calculated for arbitrary initial disturbances. The approximations reproduce the entire profiles very accurately, from the front to the tail, and their numerical computation is much faster than that of the oscillatory integrals. For one-dimensional propagation, the uniform asymptotics involve Airy functions and their derivatives; for two-dimensional propagation, the uniform asymptotics involve products of these functions. Separate analyses are required when the initial disturbance is specified as surface elevation or surface velocity as functions of position, and when these functions are even or odd.
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