Authors: Shanta Banstola*, Indiana State University
Topics: Geographic Information Science and Systems, Geography and Urban Health, Remote Sensing
Keywords: Urban, Urban Sprwal, Hazard, Risk, GIS/RS
Session Type: Poster
Start / End Time: 3:20 PM / 4:35 PM
Room: Virtual Track 3
Presentation File: No File Uploaded
The study is conducted in the Kathmandu Valley (KV), surrounding the capital city of Nepal. Being an important urban concentration in Nepal, the valley possesses almost all the basic facilities like good quality of education, health services, industries, business, and employment opportunities. Besides this suitable landscape, the climate is an important pulling factor of urbanization. To date, urbanization in the valley has become intense. Because of this, KV experiences urban-oriented hazards like an urban flood. The impervious areas in the city allow for less infiltration and more runoff. Thus, every monsoon season water overflows in all the areas of the city. There are very few works that address the interlinkage between hazard and sprawl. Thus, the major goal of this research is to identify risk zones as a result of the synergetic effects of flood and sprawl. The poster includes the pattern of sprawl for the years 2000, 2010, 2015 and 2020. This research is quantitative and based on the application of Geographic Information System (GIS) and Remote Sensing (RS). Two major approaches for identifying urban spread patterns used in this research are 1) Estimating land-use/land-cover ` 2) Calculating Normalized Differential Built-Up Index (NDBI). Besides this, field verification will be done in order to validate the outputs from GIS and RS analyses. The social survey will be conducted in order to uncover aspects of the rooted problems of urbanization and natural hazards in the region.