The Impact of Rainfall on Flood Experienced by Bangladesh
In 2008

Suraiya Begum[1], Md. Mozammel Haque Sarker[2] , Dr. Md. Mahmudur
Rahman[3]
Page No. 43-49

Bangladesh is a disaster prone country. Flood is one the common phenomena and hydrological
disaster that occurred in Bangladesh almost every year. It is located next to India having complex
river system .The country is situated on the Ganges Delta and the many tributaries flowing into the
Bay of Bengal and thus is prone to different natural hydrological disasters like flooding. The
coastal flooding twinned with the bursting of Bangladesh's river banks which is common and
severely affects the landscape and Bangladeshi society. Bangladesh in general is subject to floods
because much of the country occupies the deltaic floodplains of the Ganges Brahmaputra and
Meghna rivers, which is the second largest river system (GBM system) in the world. The major
rivers of Bangladesh have profound effects on the land, people and resources along their courses. .
In Bangladesh, over the years, channel width is increasing and depth is decreasing because of
unfavorable geographic location and discharge control by the countries in the upstream reaches
that lead to unexpected erosion-deposition processes along the major rivers. The flood's main cause
is the creation of Erranticophrus (top soil wash away reaction) from the inhabitants of the
Himalayas irrigating their mountains vertically. Cross-boundary inflow, coincidence of the flood
peaks of Ganges, Brahmaputra and Meghna and huge rainfall is the cause to occur this type of
flood. Heavy rains also cause flooding; as drainage is impeded by high stages in the main rivers.
In this paper, the Impact of rainfall on flood in Bangladesh has been analyzed and studied.
Keywords: Affects, Confluence, Disaster, Hydrological, Phenomena, Tributaries