Integrated Hydrological Modelling over Upstream Catchments of Himalayan Rivers and Assessment of Hydrological Events in Tehri Dam and Srinagar Catchments

Abstract

Flash floods in the Himalayan Rivers result in hundreds of deaths causing a sudden hazard in a minimum period of time. These hydrological events of mostly happen due to cloudburst incidents in the Indian Himalayas, with an unexpected heavy overwhelming of precipitation in a short interval over a small region. These extreme hydrological events are assessed through the analytical hierarchy process for the upper stream catchments of Tehri Dam and Srinagar. The morphometry characteristics of these catchments are collaboratively integrated with the SAC (Space Application Centre) hydro simulated discharge and rainfall data to identify the flash-flood-vulnerable hazard region over the surrounding catchment regions.

Keywords

• flash floods
• cloudburst
• hydrological events
• analytical hierarchy process