प्रपत्र-3.6-हाइड्रो - डाइनैमिक मॉडल तथा जी आई एस द्वारा फ्लैश फ़्लड का आंकलन एवं चित्रण

Abstract

The Himalaya is the life line of millions of living organisms and rivers are its backbone. Flash floods in the Himalayas cause continuous disaster. Flash flood is the result of meteorological disturbances. Most districts of the Himalayas are victims of this flood disaster and have been experiencing this disaster for a long time, but the intensity is varied. The worst year was 2013, in which 12 out of 13 districts of Uttarakhand suffered from flash floods. Though man-made climate change has increased the incidence of weather climax in almost all the states of the country, but it its impact in Himalayan states is more visible. Calamity due to heavy rains and cloudburst in the hill states is also considered as part of it. Uttarakhand is hit by floods every year. People die here due to heavy rain and cloudburst events. The purpose of this paper is to analyze various causes of flash floods as well as to assess the effect of flooding from flash floods by modeling. Therefore, in this paper, an event due to cloudburst using a hydro-dynamic model is studied. The results obtained by the model are mapped using techniques such as Arc, GIS and ERDAS, further it has been compared to images obtained from remote sensing satellite. The obtained results demonstrate the usefulness of hydro-dynamic model technology to assess the impact of flooding due to flash floods.