Land Conversion and Its Effect on Land Surface Temperature in the Thiruvananthapuram District of Kerala

By : Aneesh M.R , Suresh S , Prasad T.K , Mani K

Page No: 16-27

Abstract
Based on Survey of India (SOI) Topographical maps of 1:25000, Landsat TM-5 and Landsat OLI TIRS-8 image the present study evaluates the effect of land conversion on Land Surface Temperature (LST) in the Thiruvananthapuram district of Kerala. The land conversion matrix was calculated in the ArcGIS 10 platform to understand the trend of land conversion. To examine how land conversion might have influenced the LST, change detection was performed to identify the areas where land conversion took place between 1991 and 2017. A total of 1000 converted areas from different land uses were identified and selected for the analysis. These changed areas were then overlaid (spatial overlay) with LST layers to calculate the LST differences during the period. Results show that land transformation has increased considerably the LST, especially in the built-up area.

Authors:
Aneesh M.R.
Research Scholar (Formerly), Department of Geography, University College, Thiruvananthapuram, Kerala.

Suresh S.
Assistant Professor, Department of Geography, Sree Sankaracharya University of Sanskrit, Kalady, Ernakulam, Kerala.

Prasad T.K.
Associate Professor, Department of Geography, Kannur University, Payyanur Campus, Kannur, Kerala.

Mani K.
Principal (Rtd.), University College, Thiruvananthapuram, Kerala.
 

DOI: https://doi.org/10.32381/ATNAGI.2022.42.01.2