Spatio-temporal urban land surface temperature variations and heat stress vulnerability index in Thiruvananthapuram city of Kerala, India
Land use/Land cover (LU/LC) modifications leads to rise in surface temperature is a global concern. This study investigates the effects of LU/LC changes in Land Surface Temperature (LST) variations and effects of Urban Heat Island (UHI) in Thiruvananthapuram city. Furthermore, the study proposed a n...
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Taylor & Francis Group
2025-01-01
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| Series: | Geology, Ecology, and Landscapes |
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| Online Access: | https://www.tandfonline.com/doi/10.1080/24749508.2023.2182088 |
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| author | R S Anupriya T A Rubeena |
| author_facet | R S Anupriya T A Rubeena |
| author_sort | R S Anupriya |
| collection | DOAJ |
| description | Land use/Land cover (LU/LC) modifications leads to rise in surface temperature is a global concern. This study investigates the effects of LU/LC changes in Land Surface Temperature (LST) variations and effects of Urban Heat Island (UHI) in Thiruvananthapuram city. Furthermore, the study proposed a novel heat stress vulnerability index (HSVI) using Analytical Hierarchy Process (AHP) method. Results shows that transformation of all land uses is to built-up areas, which shows an increase of +118.46% where as others such as vegetation (-24.27%), open area (-64.315) and waterbody (-43.88%) shows drastic decrease over 34 years. The relationship between Normalized Difference Vegetation Index and LST shows a significant change with R2 values between 0.223 in 1988, 0.382 in 2000 and 0.253 in 2022. Moreover, this also contributed to the increase of the mean LST of 26.96 ºC in 1988 to 28.52 ºC in 2022. HSVI of the study indicates that 30.83% of the study area is categorized as very low heat stress vulnerable area followed by 37.22% area in low heat stress vulnerability, 17.88% in moderate heat stress vulnerability, 8.87% in high heat stress vulnerability and 5.19% of the area falling in very high heat stress Vulnerability class. |
| format | Article |
| id | doaj-art-e070f5a3beca4eedb52a7ca98354141f |
| institution | DOAJ |
| issn | 2474-9508 |
| language | English |
| publishDate | 2025-01-01 |
| publisher | Taylor & Francis Group |
| record_format | Article |
| series | Geology, Ecology, and Landscapes |
| spelling | doaj-art-e070f5a3beca4eedb52a7ca98354141f2025-08-20T03:12:51ZengTaylor & Francis GroupGeology, Ecology, and Landscapes2474-95082025-01-019126227810.1080/24749508.2023.2182088Spatio-temporal urban land surface temperature variations and heat stress vulnerability index in Thiruvananthapuram city of Kerala, IndiaR S Anupriya0T A Rubeena1Department of Geography, University College, Thiruvananthapuram, IndiaDepartment of Geography, University College, Thiruvananthapuram, IndiaLand use/Land cover (LU/LC) modifications leads to rise in surface temperature is a global concern. This study investigates the effects of LU/LC changes in Land Surface Temperature (LST) variations and effects of Urban Heat Island (UHI) in Thiruvananthapuram city. Furthermore, the study proposed a novel heat stress vulnerability index (HSVI) using Analytical Hierarchy Process (AHP) method. Results shows that transformation of all land uses is to built-up areas, which shows an increase of +118.46% where as others such as vegetation (-24.27%), open area (-64.315) and waterbody (-43.88%) shows drastic decrease over 34 years. The relationship between Normalized Difference Vegetation Index and LST shows a significant change with R2 values between 0.223 in 1988, 0.382 in 2000 and 0.253 in 2022. Moreover, this also contributed to the increase of the mean LST of 26.96 ºC in 1988 to 28.52 ºC in 2022. HSVI of the study indicates that 30.83% of the study area is categorized as very low heat stress vulnerable area followed by 37.22% area in low heat stress vulnerability, 17.88% in moderate heat stress vulnerability, 8.87% in high heat stress vulnerability and 5.19% of the area falling in very high heat stress Vulnerability class.https://www.tandfonline.com/doi/10.1080/24749508.2023.2182088LSTLU/LC changeUHIKeralaIndia |
| spellingShingle | R S Anupriya T A Rubeena Spatio-temporal urban land surface temperature variations and heat stress vulnerability index in Thiruvananthapuram city of Kerala, India Geology, Ecology, and Landscapes LST LU/LC change UHI Kerala India |
| title | Spatio-temporal urban land surface temperature variations and heat stress vulnerability index in Thiruvananthapuram city of Kerala, India |
| title_full | Spatio-temporal urban land surface temperature variations and heat stress vulnerability index in Thiruvananthapuram city of Kerala, India |
| title_fullStr | Spatio-temporal urban land surface temperature variations and heat stress vulnerability index in Thiruvananthapuram city of Kerala, India |
| title_full_unstemmed | Spatio-temporal urban land surface temperature variations and heat stress vulnerability index in Thiruvananthapuram city of Kerala, India |
| title_short | Spatio-temporal urban land surface temperature variations and heat stress vulnerability index in Thiruvananthapuram city of Kerala, India |
| title_sort | spatio temporal urban land surface temperature variations and heat stress vulnerability index in thiruvananthapuram city of kerala india |
| topic | LST LU/LC change UHI Kerala India |
| url | https://www.tandfonline.com/doi/10.1080/24749508.2023.2182088 |
| work_keys_str_mv | AT rsanupriya spatiotemporalurbanlandsurfacetemperaturevariationsandheatstressvulnerabilityindexinthiruvananthapuramcityofkeralaindia AT tarubeena spatiotemporalurbanlandsurfacetemperaturevariationsandheatstressvulnerabilityindexinthiruvananthapuramcityofkeralaindia |