ABSTRACT
This city’s rapid economic growth has resulted in a large increase in urbanisation; also, an increase in summer season precipitation is projected, perhaps resulting in flooding. Using the Soil and Water Assessment Tool, we examined flood risk and vulnerability due to climate change and urbanisation in our study. Delhi and the national capital region surrounding areas have captivated a considerable amount of people in the post-economic reform period, resulting in a quick moderation of its land use land cover (LULC) pattern. The findings demonstrate that over the research period, significant changes in LULC have occurred due to a constant increment in the built-up area and dormant land, as well as a decrease in farmland and vegetation. A hydrodynamic model was utilised to precisely model and simulate urban flooding methodology and analyse the flood hazards to pedestrians and cars in floodwaters, showing that the sewage system massively diminished flood risks to pedestrians and cars, apart from local places with heavy upwelling water depths, in which the sewage system enhanced local flowrate, leading to greater flood risks, available for individuals. The research’s implications aim to advise homeowners and engineers about the risks of floods in human-altered environments via GIS and remote sensing image classifications.
