Publicações

Muraleedharan, G., Guedes Soares, C., Murty, T.S., Jain, I., Rao, A.D. e Dube, S.K., (2011), “Application of the Work-Energy Theorem for Computing Inundation from Long Gravity Waves”, Sea Level Rise, Coastal Engineering, Shorelines and Tides, Oceanography and Ocean Engineering Series, pp. 171-190

An expression developed for beach run-up heights for long gravity waves based on work energy theorem concept of classical physics is validated against real historical tsunami data including the 26th December 2004 Indian Ocean tsunami. It can also be applied for pilot estimation of storm surge inundation approximately as tsunamis and storm surges differ mainly in their generation mechanisms but behave in a similar way in shallow waters (long-period gravity waves). The time required by a wave to travel from shallow depths (d1 m) to 0 m depth and shore slopes show significant nonlinear functional relationships (power series, R2 > 0.99). The average deceleration ( a ) estimated by Monte-Carlo method (Composite mid-point rule) rather than constant deceleration (a), when a tsunami wave travels from 1 m to 0 m depth seems to be more effective in estimating near shore tsunami heights for steep shore slopes (>0.3). Storm surge beach run-up height depends on the height near coastline, on the shore slopes and shallow water bottom topography over which the wave travels (as that determines the greater momentum of terminal speed) and slopes on land. Inundation is estimated for 61 cyclonic events in the Bay of Bengal during the period, 1972 - 2006.

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