Author(s): T. C. Gopalakrishnan; C. C. Tung; J. S. Wei
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Keywords: No Keywords
Abstract: Evaluation of storm surge and the consequent flooding of coastal areas is an essential aspect of disaster prevention and safety zoning of coastal regions. This involves choosing a design storm and computing the resulting elevation of water level near the coastline. The extent of flooding depends not only on the storm surge but also on the storm wave riding the enhanced water level that has already intruded the onshore areas. This problem is modeled in the present study in two phases - the first is to use a two-dimensional resol- ution in the offshore region and the second is to connect the storm surge thus predicted to the onshore motion of the water. The onshore motion itself is composed of two phenomena; they are the intrusion of water inland due to the enhanced sea level and the motion of waves over it. The second phase, namely, the onshore motion, is based on a one-dimensional resolution because a two-dimensional moving boundary model is computationally very expensive.
Year: 1985