ASSESSMENT OF FLOOD RISK VULNERABILITY OF VISHWAMITRI RIVER BASIN USING REMOTE SENSING AND GIS 3459
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Date
2022-04
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JAU JUNAGADH
Abstract
Floods are the most common natural disaster in the world. Flooding is
expected to become more common in the future, according to studies. Once the risk
assessment for the area has been completed precisely, flood mitigation solutions,
which comprise both structural and non-structural measures, can be selected
efficiently. A review of flood risk assessment approaches is presented in this work,
which considers flood risk as a function of flood hazard and vulnerability. In this
study, some of the most widely used approaches for assessing flood hazard, flood
vulnerability, and flood risk, including multi criteria decision making tools, GIS, and
remote sensing, are examined.
Climate change, unplanned rapid urbanisation, inefficient watershed
management, and reduced infiltration into groundwater due to the development of
impermeable surfaces in metropolitan areas are all likely to make floods more severe
and frequent in the future. Even while natural variables such as climate change might
be blamed for the increased likelihood of floods, we cannot ignore the anthropogenic
elements, which are the most important qualities. An increase in the frequency of
floods has resulted in significant losses, including human lives, property and
infrastructure damage, and environmental harm.
The study was formulated by keeping in view three objectives like to perform
geomorphic analysis of the Vishwamitri river basin adapting remote sensing and GIS
technique, to prepare flood risk map for identifying flood-prone area applying multi criteria decision-making tool with GIS and to propose plans or strategies for flood risk
management.
The flood risk map is a crucial tool for decision-makers to consider possible
defensive measures, bette