COMPARATIVE-STUDY OF THE STORM-SURGE MODELS PROPOSED FOR BANGLADESH - LAST DEVELOPMENTS AND RESEARCH NEEDS

For the prediction of the storm surges of Bangladesh, a model has been developed by incorporating the islands and the bathymetrical details. The effects of the Swatch of No Ground, the sea level rises and the bottom level changes have been found to be active in the water regime of the Bay of Bengal. The model further indicates that the sea-level rise will result in proportional increase in surge-height and the bathymetrical rise will prolong the peak of the storm surges. Storm-surge models so far proposed for Bangladesh are discussed emphasizing the new ideas developed and the deficiencies remaining. The areas of research-needs in the storm-surge modeling activities for Bangladesh are pointed out and a set of recommendations is made.