![]() Flooding due to storm surges pollute drinking water sources resulting in shortage of drinking water and causing out-break of epidemics, mostly water borne diseases Very strong winds (Gales) may cause uprooting of trees, damage to dwellings, overhead installations, communication lines etc., resulting in loss of life and property. The storm surges are by far the greatest killers in a cyclone as sea water inundates low lying areas of the coastal regions causing heavy floods, erosion of beaches and embankments, damage to vegetation and reducing soil fertility. What are the disaster potential of Storm Surge?ĭisaster potential due to cyclones is due to high storm surges occurring at the time of landfall. But, it is found that there is an interaction of storm surge with astronomical tide, and during high tide time the total surge is little less than x+y and during low tide time it is little more than x-y. In general one may expect that if there is a storm surge of x metres and tidal wave of y metres then during high tide total surges would be x+y and during low tide x-y. What is the interaction of astronomical tide with storm surge? The height of water level rise due to storm surge is the difference at the coast between the observed level of the sea surface and the level that would have occurred in the absence of the tropical cyclone. It is caused mainly by atmospheric weather systems such as tropical cyclones, hurricane winds shoving the ocean water up over the coast, although low pressure in the eye also contributes a much smaller amount. Storm surge is the abnormal rise in sea level generated by a hurricane or other intense storm, over and above the predicted or normal astronomical tide. Satellite Oceanography Satellite Oceanography.Modelling & Research Ocean Modelling & Research.
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