Vol. 2, Issue 5, Part H (2016)

Abstract
Flood is one of the calamitous events which disturbs not only the life pattern of the human beings but also destroys their lifelong stored properties every year. Floods are high stream flows, which overlap natural or artificial banks of a river or a stream and are markedly higher than usual as well as inundation of low land. Sometimes copious monsoon rains combine with massive flows from the rivers, and then the floods indeed become calamitous. Through geophysical studies, it has been found that more than one and half billion of people on the Earth planet reside on riverside or coastal flood plains where they produce 1/3 of world’s food production. At least some fraction of these plains go under flood water one or the other day, hence causing widespread losses to human lives, devasted homes and heads of cattle dead, destroy agricultural crops and disrupt the communication links such as railways, roads as well health hazards. Even after the receding of floods, it takes several months or even years before the community comes to the pre-flood level. In flood control and management, the strategy should be reduced the intensity of floods. Indiscriminate occupation of, and economic activity in coastal areas and flood plain zones should be regulated.