Analysis of cooling effect of water bodies on land surface temperature in nearby region: A case study of Ahmedabad and Chandigarh cities in India

A significant cooling effect of water bodies on land surface temperature (LST) is demonstrated, with Sukhna Lake in Chandigarh showing an average temperature dip of 7.51°C during summer and 3.12°C in winter over three years. The Sabarmati River in Ahmedabad also exhibits notable cooling, reducing temperatures by approximately 1.57°C to 1.71°C on its right bank and around 0.69°C to 0.65°C on the left bank within a 200–300 m influence distance. This study provides direct evidence using remote sensing techniques, specifically Landsat images from 2009–2011, highlighting how surface water features mitigate urban heat island (UHI) effects through evaporation. The findings underscore the potential of water bodies in sustainable urban planning to combat rising temperatures caused by unplanned development and reduced green cover.

Gupta, N., Mathew, A., & Khandelwal, S. (2019). Analysis of cooling effect of water bodies on land surface temperature in nearby region: A case study of Ahmedabad and Chandigarh cities in India. The Egyptian Journal of Remote Sensing and Space Science, 22(1), 81–93. https://doi.org/10.1016/j.ejrs.2018.03.007