Analysis of hydrodynamics and sediment conditions around East Coast Sea Area in Bay of Bengal

Abstract

The bay of Bengal is an important sea area of the 21st century Maritime Silk Road. Systematic analysis of the hydrodynamic and sediment characteristics of the bay of Bengal is conducive to the development and implementation of offshore and coastal projects in the bay of Bengal. In this paper, based on the historical reanalysis data of ECMWF and the observed data of several hydrological stations along the east coast of Bangladesh, including wave, tide level, tidal current and sediment data are verified and assimilated, and the characteristics of wind wave, water level, tide and sediment along the east coast of Bengal are analysed. The hydrodynamic and sediment conditions in the bay of Bengal are generally characterized by “strong tide, strong wave and high suspended sediment concentration”. The bay of Bengal is easily affected by cyclonic storms, which causes a great increase in storm surge. The above situation will lead to the complicated sediment erosion and deposition of storm surge, strong wave and strong tide and high suspended sediment concentration. At present, there has no deep-water port and coastal power plant located in the bay of Bengal. Whether to build a deep-water port or how to transfer at sea should be paid attention to or studied in depth.