Investigation of Spatio–Temporal Changes in Land Use and Heat Stress Indices over Jaipur City Using Geospatial Techniques

Suresh Chandra, Swatantra Kumar Dubey, Devesh Sharma, Bijon Kumer Mitra and Rajarshi Dasgupta
Additional contact information
Suresh Chandra: Centre of Excellence for Climate Change & Vector-Borne Diseases, ICMR-National Institute of Malaria Research, Department of Health Research, Government of India, New Delhi 110077, India
Swatantra Kumar Dubey: Department of Environmental Engineering, Seoul National University of Science & Technology (SeoulTech), Gongneung-ro, Nowon-gu, Seoul 01811, Korea
Devesh Sharma: Department of Atmospheric Science, School of Earth Sciences, Central University of Rajasthan, Ajmer 305817, India
Bijon Kumer Mitra: Integrated Sustainability Center, Institute for Global Environmental Strategies (IGES), 2108-11 Kamiyamaguchi, Hayama 240-0115, Kanagawa, Japan
Rajarshi Dasgupta: Integrated Sustainability Center, Institute for Global Environmental Strategies (IGES), 2108-11 Kamiyamaguchi, Hayama 240-0115, Kanagawa, Japan

Sustainability, 2022, vol. 14, issue 15, 1-30

Abstract: Heat waves are expected to intensify around the globe in the future, with a potential increase in heat stress and heat-induced mortality in the absence of adaptation measures. India has high current exposure to heat waves, and with limited adaptive capacity, impacts of increased heat waves might be quite severe. This paper presents a comparative analysis of urban heat stress/heatwaves by combining temperature and vapour pressure through two heat stress indices, i.e., Wet Bulb Globe Temperature (WBGT) and humidex index. For the years 1970–2000 (historical) and 2041–2060 (future), these two indicators were estimated in Jaipur. Another goal of this research is to better understand Jaipur land use changes and urban growth. For the land use study, Landsat 5 TM and Landsat 8 OLI satellite data from the years 1993, 2010, and 2015 were examined. During the research period, urban settlement increased and the majority of open land is converted to urban settlements. In the coming term, all months except three, namely July to September, have seen an increase in the WBGT index values; however, these months are classified as dangerous. Humidex’s historical value has been 21.4, but in RCP4.5 and RCP8.5 scenarios, it will rise to 25.5 and 27.3, respectively, and slip into the danger and extreme danger categories. The NDVI and SAVI indices are also used to assess the city’s condition during various periods of heat stress. The findings suggest that people’s discomfort levels will rise in the future, making it difficult for them to work outside and engage in their usual activities.

Keywords: heat stress; WBGT index; climate change; land use; humidex index (search for similar items in EconPapers)
JEL-codes: O13 Q Q0 Q2 Q3 Q5 Q56 (search for similar items in EconPapers)
Date: 2022
References: View references in EconPapers View complete reference list from CitEc
Citations: View citations in EconPapers (1)

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