Assessment of Flooding Scenarios and Flood Risk Due to Storm Surges Using DEM: A Case Study of Dacope Upzila

Authors- Lecturer Md. Sakhawat Hossain, Lecturer Md. Salahuddin

Abstract- Dacope Upzila in Khulna district of Bangladesh is a badly affected area due to storm surge during cyclone Aila and Sidr. In this study, the Digital Elevation Model of the site is developed using GIS interface. The assessment of flooding scenarios and flood risk are performed for the Upzila due to storm surge. The study reveals that approximately 371.6 km2 of the site is flooded due to the height of storm surge of 7m above the mean sea level. It is also found that about 47 km2 and 269 km2 are at high risk according to age group population data and household construction materials data, respectively while 222 km2 and 58.5 km2, and 102.6 km2 and 44.1 km2 are at moderate and low risk, respectively. Moreover, the household survey reveals that about 25.3% of population is highly vulnerable while 22.4% and 52.3% of them face moderate and low vulnerability, respectively.

Cite: Lecturer Md. Sakhawat Hossain, Lecturer Md. Salahuddin. “Assessment of Flooding Scenarios and Flood Risk Due to Storm Surges Using DEM: A Case Study of Dacope Upzila”. IJSET volume 11, issue 4, 2023.