Spatio-temporal Analysis of Flood Hazard Zonation in Assam

Flood, the most catastrophic natural disaster of the globe is affecting the life of the people each year in both aspects; economically and socially. It has been causing enormous damage to livelihood, infrastructure, property, etc. Assam is the most flood-affected state of Northeast India which is inundated by floods are caused due to the Brahmaputra and its tributaries. The traditional approach of flood monitoring necessitates ground truth information, surveys, manpower, and other resources; this procedure is time-consuming, labor-intensive, and requires continuous monitoring. Satellite remote sensing data, serve as beneficial input for monitoring the flood. It is known that the continuous monitoring of vast flood-affected areas is only possible using remote sensing (RS) technology. This work's framework is exhibited for Assam's several districts. The result of this framework shows the spatial hotspots zone of different flood hazards and vulnerability assessment of the districts in a statistical manner with Moderate Resolution Imaging Spectroradiometer (MODIS). Assam has a flood hazard zone covering 25.44% of its territory. The very flood sensitive area was predicted to cover 8% of the total land, with districts like Barpeta and Morigaon having the most acreage under flood zone.