: Why does Bangladesh flood even when it receives below average rainfall? #IndiaNEWS Being a riverine country, about a great portion of Bangladesh is flooded every year. The flood mainly occurs during

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Why does Bangladesh flood even when it receives below average rainfall? #IndiaNEWS
Being a riverine country, about a great portion of Bangladesh is flooded every year. The flood mainly occurs during the monsoon period of early July to late September. Even in 2021, when rainfall throughout Bangladesh has been below average, floods are being experienced in some floodplains of the Teesta and Jamuna rivers, as well as the lower southern portion of the country.Bangladesh is one of the countries most susceptible to floods in South Asia, as well as to the consequences of climate change. There are five main types of natural floods occurring in Bangladesh:Riverine floodRainfall floodFlash floodTidal floodStorm surge flood.River floods The principal sources of floods are the river floods from the overbank flows of the major river systems, the Brahmaputra, the Ganges and the Meghna, in the monsoon months. Local rainfall floods frequently accompany river floods caused by runoff from Bangladesh’s high-intensity, long-duration precipitation. This huge discharge of water cannot be drained to the Bay of Bengal because of high outfall water levels.The northern and northeastern transboundary hilly rivers are susceptible to flash floods from the adjacent hills in India in the pre-monsoon season between April and May. The areas adjacent to estuaries and tidal rivers in the southwest and south-central parts of the country experience tidal floods twice...Read more

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