Title: The influence of temperature dynamics, land cover, and spectral indices on urban environment: a special emphasis on Chennai

Authors: Safrin Rex Dulcie; Thirumaran Kesavaperumal; L. Saikala

Addresses: Department of Architecture, National Institute of Technology, Tiruchirapalli, 620 015, India ' Department of Architecture, National Institute of Technology, Tiruchirapalli, 620 015, India ' Department of Architecture, National Institute of Technology, Tiruchirapalli, 620 015, India

Abstract: Fast paced urbanisation has altered land cover contributing to urban heat island (UHI) effect. Research often focuses on developed countries, but this study examines land surface temperature (LST) and its relationship between various spectral indices, normalised differentiation vegetation index (NDVI), normalised differentiation built-up index (NDBI), normalised differentiation latent heat index (NDLI) and normalised differentiation water index (NDWI) specific to Chennai Metropolitan Area from 2014-2022 using GIS, remote sensing and statistical analysis. Results show high LST in built-up areas and reduced vegetation cover. Pearson's correlation indicates a positive association between NDBI and NDVI (r = 0.758), NDBI and NDLI (r = 0.69) at 0.01 levels. These findings aid in understanding urban climate resilience and inform policies to mitigate UHI and promote sustainable development.

Keywords: urban heat island; UHI; spectral indices; land surface temperature; LST; land use land cover.

DOI: 10.1504/IJENM.2025.151309

International Journal of Enterprise Network Management, 2025 Vol.16 No.4, pp.367 - 386

Received: 06 Aug 2024
Accepted: 15 Apr 2025
Published online: 22 Jan 2026 *

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