The Role of Vegetation Indices to Alleviate the Land Surface Temperature in Almora

Shashikanta*, Ajaykumar**, Sunaina Singh***
*Banasthali University, Rajasthan, India.
**Guru Jambheshwar University of Science and Technology, Hisar, Haryana, India.
***Kumaun University, Uttarakhand, India.
Periodicity:June - August'2021
DOI : https://doi.org/10.26634/jit.10.3.14511

Abstract

The term "urban heat island" (UHI) refers to a temperature that is greater than the surrounding rural or suburban region. The urban heat factor is directly proportional to the land surface temperature. UHI is a much warmer urban region than the neighbouring rural areas. Heat is produced in large cities by the combined energy of all the people, automobiles, buses, and trains. In heat balance research and as a control for climate models, the land surface temperature is an essential component for predicting the radiation budget. In this research, an effort was made to estimate surface temperature across the Almora city region using Landsat-5 and Landsat-8 satellite data. The Lands at visible and Near Infrared (NIR) channels were used to explore the variability of these Land Surface Temperatures (LST) about distinct land use/land cover types. The emissivity per pixel was derived directly from the satellite data and calculated as narrowband emissivity at the satellite sensor channel to reduce the estimation error in surface temperature. The findings imply that the approach may be used to predict the surface temperature and emissivity using the Normalized Difference Vegetation Index (NDVI) with good accuracy in various metropolitan regions.

Keywords

Urban Heat Island, Land Surface Temperatures (LST), Normalized Difference Vegetation Index (NDVI), Landsat, Near Infrared (NIR) Channels.

How to Cite this Article?

Shashikanta, Ajaykumar, and Singh, S. (2021). The Role of Vegetation Indices to Alleviate the Land Surface Temperature in Almora. i-manager's Journal on Information Technology, 10(3), 44-51. https://doi.org/10.26634/jit.10.3.14511

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