Evaluation of Diurnal Variations in Urban Surface Temperature with Earth Observations System

Diksha Rana (), Maya Kumari, Deepak Kumar and Neeru Jaiswal ()
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Diksha Rana: Amity School of Natural Resources & Sustainable Development (ASNRSD), Amity Institute of Geoinformatics & Remote Sensing (AIGIRS), Amity University, Sector 125, Noida 201303, Gautam Buddha Nagar, Uttar Pradesh, India
Maya Kumari: Amity School of Natural Resources & Sustainable Development (ASNRSD), Amity University, Sector 125, Noida 201303, Gautam Buddha Nagar, Uttar Pradesh, India
Deepak Kumar: Center of Excellence in Weather & Climate Analytics, Atmospheric Sciences Research Center (ASRC), University at Albany (UAlbany), State University of New York (SUNY), Albany 12226, NY, USA4Amity Institute of Geoinformatics & Remote Sensing (AIGIRS), Amity University Uttar Pradesh (AUUP), Sector-125, Noida 201313, Gautam Buddha Nagar, Uttar Pradesh, India
Neeru Jaiswal: Atmospheric Sciences Division, Atmospheric, and Oceanic Sciences Group, Space Applications Centre (ISRO), Ahmedabad 380015, Gujarat, India

Journal of Environmental Assessment Policy and Management (JEAPM), 2023, vol. 25, issue 01, 1-34

Abstract: Rapid urbanisation causes the ‘heat island’ problem in megacities worldwide. The industrialisation has fuelled the increase in the urbanisation in Indian cities. This work measures and characterises Ahmedabad’s heat island variations (India). The study uses two satellite passes of the MODIS sensor over the summer for the last three years to assess urban heat island intensity (UHII). Sentinel-2B records are used to create a land-use map. The study considers the impact of land-use patterns on summer UHII diurnal fluctuations. Daily diurnal changes in land surface temperature (LST) are being analysed. Locations and land-use land-cover patterns affect UHII. Satellite observations show greater LST values during the day than at night, however, UHII is stronger at night. Urban UHII is stronger rural UHII. Lower vegetation cover area is one of the key causes of UHII development, as seen in the region’s Normalized Difference Vegetation Index (NDVI) values.

Keywords: Diurnal variations; earth observation satellites; surface temperature; urban heat island intensity (UHII); MODIS (search for similar items in EconPapers)
Date: 2023
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DOI: 10.1142/S1464333222400014

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