Publications

Chauhan, S; Jethoo, AS; Varshney, V (2025). Comprehensive diurnal thermal characterization of agro-climatic zones in Rajasthan using remote sensing techniques and time-specific observations. REMOTE SENSING LETTERS, 16(8), 842-855.

Abstract
We examine daily spatial and temporal changes in land surface temperatures (LST) across four Rajasthan cities situated in different climatic zones of India. We analyse LST patterns during day and night hours using Moderate Resolution Imaging Spectroradiometer (MODIS) data (2003-2020). It is observed that daytime LST coefficient of determination values (R-2 = 0.57-0.99) as well as the night-time LST values (R-2 = 0.12-0.97) vary across cities due to various geographical and climatic conditions. In Bharatpur, daytime LST correlations (R-2 >0.95) remain stronger as compared to night-time (R-2 <0.18) across the whole year except during monsoon. In contrast, Bikaner shows lower correlations between daytime (R-2 approximate to 0.57) while night-time exhibit stronger correlations (R-2 approximate to 0.92), the city being located in an arid desert climate. In Kota, nocturnal LST stability reach levels of 0.76-0.97, while daytime variations peak in the pre-monsoon months. The standard temperature profile of Udaipur is similarly observed to depend on seasonal patterns as the LST values reduce to R-2 <= 0.21 during the monsoon months and peak night-time stability occurred during the post-monsoon period (R-2 approximate to 0.88). This study establishes the daily patterns of LST throughout Rajasthan's different agro-climatic regions since these patterns support climate change analysis.

DOI:
10.1080/2150704X.2025.2511185

ISSN:
2150-7058