抄録
To study the flood characteristics of Bengal delta created by three mighty Himalayan Rivers: the Ganges, the Brahmaputra and the Meghna, historical water level and discharge data of three stations, one from each of the three rivers, were analyzed along with the flood history of Bangladesh. An attempt has been made to find the correlation of flood season discharges with Global Indices like Southern Oscillation Index (SOI) and Indian Ocean Dipole Mode Index (IODMI). By analyzing the data it is found that the flood pattern is changing and extreme peaks are increasing. Significant correlation exists between flood season discharge of Surma and Jamuna. Monthly and seasonal river discharges have some significant correlations with SOI and IODMI.
