The Impacts of Landscape Changes on Annual Mean Land Surface Temperature in the Tropical Mountain City of Sri Lanka: A Case Study of Nuwara Eliya (1996–2017)

Although urbanization has contributed to improving living conditions, it has had negative impacts on the natural environment in urbanized areas. Urbanization has changed the urban landscape and resulted in increasing land surface temperature (LST). Thus, studies related to LST in various urban envir...

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Bibliographic Details
Published in:Sustainability 2019-10, Vol.11 (19), p.5517
Main Authors: Ranagalage, Manjula, Murayama, Yuji, Dissanayake, DMSLB, Simwanda, Matamyo
Format: Article
Language:English
Subjects:
Agricultural land
Cities
Climate
Cold
Density
Developing countries
Environmental impact
Forest management
Land surface temperature
Land use
Landsat
Landscape
LDCs
Living conditions
Mountains
Preservation
Rural areas
Rural land use
Studies
Sustainability
Urban environments
Urban planning
Urbanization
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Summary:Although urbanization has contributed to improving living conditions, it has had negative impacts on the natural environment in urbanized areas. Urbanization has changed the urban landscape and resulted in increasing land surface temperature (LST). Thus, studies related to LST in various urban environments have become popular. However, there are few LST studies focusing on mountain landscapes (i.e., hill stations). Therefore, this study investigated the changes in the landscape and their impacts on LST intensity (LSTI) in the tropical mountain city of Nuwara Eliya, Sri Lanka. The study utilized annual median temperatures extracted from Landsat data collected from 1996 to 2017 based on the Google Earth Engine (GEE) interface. The fractions of built-up (BL), forested (FL) and agricultural (AL) land, were calculated using land use and cover maps based on urban–rural zone (URZ) analysis. The urban–rural margin was demarcated based on the fractions of BL (
ISSN:2071-1050
2071-1050
DOI:10.3390/su11195517