Research

Astronomy & Space Sciences

Title :

Flash flood risk assessment using satellite images, GIS tools and hydrological modeling

Area of research :

Astronomy & Space Sciences

Focus area :

Flood hazard and risk vulnerability analysis, Flood inundation modelling, SAR based assessment of backscattering for inundation mapping urban flooding

Contact info :

Details

Executive Summary :

Flash flood is one of the devastating natural disaster in the mountainous region of India. Floods in mountainous environment because of their quick hydrological response as well as their considerable power make mountain streams highly hazardous and events therein difficult to forecast such that they cause large amounts of losses and fatalities worldwide. Floods in mountain basins are often flashy, and therefore differ from most other fluvial floods in that the lead time for warnings is generally very limited. In these environments, direct current meter measurements are often impossible to conduct during flood peaks for safety and technical reasons. It is impossible to avoid risks of floods or prevent their occurrence, however it is plausible to work on the reduction of their effects and to reduce the losses which they may cause. Flash flood mapping to identify sites in high risk flood zones is one of the powerful tools for this purpose for planners, risk managers and disaster response or emergency services during extreme and intense rainfall events. Therefore, in this project, it is proposed to utilize hydraulic modeling, geomorphic, and hydrologic data, DEM, thematic data, meteorological data, socio-economic data to model and map flood risk vulnerable areas to flash floods.

Co-PI:

Shri C.M.Bhatt, Indian Institute of Remote Sensing (IIRS), Dehradun

Organizations involved