Flooding in Bangladesh Essay

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Flooding in Bangladesh

Bangladesh is a low lying country and almost all of Bangladesh lies on the largest delta in the world. It is situated between the Himalayas and the Indian Ocean with a vast river basin made up of the Ganges, the Brahamaputra, the Meghna and their tributaries. It also has the highest population density in the world with 847 inhabitants per square kilometer.

Bangladesh is one of the world's least developed countries and prone to natural disasters, such as cyclones, floods and droughts. Half of it is less than five meters above sea level. Therefore any change in the earth’s temperature that causes the level of the oceans to rise would seriously affect the flooding of the
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depressions and tropical cyclones, precede cyclonic storms and are often as high as seven to ten meters.

The heavy wet summer monsoons also contribute to the flooding, it brings rain that adds to the flow of water in rivers. The summer monsoon was responsible for the excessive rainfall of 1987 and 1988 in Bangladesh.

An increased amount of precipitation can also cause flooding. An above normal monsoon downpour in the Ganges-Brahmaputra-Megna drainage system is thought to be the primary cause of the 1988 flood in Bangladesh. It is not known, however, if the heavy precipitation is actually an effect of other processes such as the greenhouse effect or destruction of forests in the upstream region.

Another physical cause of flooding in Bangladesh is tectonic activity. The Indian Plate is moving towards the Eurasian Plate. The land where they meet (Himalayas) is getting higher and steeper every year (fold mountains). As a result soil is becoming loose and is susceptible to erosion. This causes more soil and silt in rivers, leading to flooding in Bangladesh as the river channel becomes narrower and shallower. As the young mountains continue to raise this means that the majority of the water will fall downstream taking as much as possible of the water into the river Ganges, the Brahamaputra and the Meghna.

There are also human causes in Bangladesh which are

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