A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
Impact of Urbanization on Land Use and Land Cover Change and Land Surface Temperature in a Satellite Town
Urban Heat Island, the phenomenon synonymous with urbanization and change in local climate, is a grave threat to the energy balance and resources of a city. This paper presents a study of one of the fastest-growing satellite towns of Delhi, Gurugram, using remote sensing techniques to establish if the fast pace of urban expansion influenced air and surface temperatures. The temperature trends were studied using remote sensing and ArcGIS software. Satellite images for the years 2000 (Landsat 7 ETM+), 2010 (Landsat 5, TM) and 2019 (Landsat 8, OLI/TIRS) were downloaded and analyzed for LST ArcGIS using the mono-window algorithm. The year 2019 revealed a maximum LST of 47.68 °C for June in comparison with an LST of 44.8 °C for June 2010 and 40.4 °C for May 2000. The city’s temporal and spatial changes over the past decades (2000–2019) were studied by the technique of change detection. To study land use and land cover changes, supervised classification using ERDAS was done. The supervised classification (maximum likelihood classifier) has been used to identify the five major categories of LULC for the period years 2000, 2010 and 2019. The study found that since 2000, the city’s most abundant resource of agricultural land 2000 saw a sharp decline of 60% in 2019. This seems to be utilized by the urban built-up because the urban areas also saw an increment of more than 62% for the same time frame. The classification had accuracy of 96.67%, 94% and 86.67% for the years 2000, 2010 and 2019, respectively. Studies involving LULC classification are important because they represent how human activities are modifying ecology. The classification helped establish that the agricultural areas of Gurugram are on a rapid decline, whereas urban built-up areas have significantly doubled in the past two decades. The study helps in understanding the impacts of urbanization patterns for a fast-expanding metropolis and the possible interventions to be made by urban planners and policy managers to prevent further aggravation of UHI and plan mitigation strategies.
Impact of Urbanization on Land Use and Land Cover Change and Land Surface Temperature in a Satellite Town
Urban Heat Island, the phenomenon synonymous with urbanization and change in local climate, is a grave threat to the energy balance and resources of a city. This paper presents a study of one of the fastest-growing satellite towns of Delhi, Gurugram, using remote sensing techniques to establish if the fast pace of urban expansion influenced air and surface temperatures. The temperature trends were studied using remote sensing and ArcGIS software. Satellite images for the years 2000 (Landsat 7 ETM+), 2010 (Landsat 5, TM) and 2019 (Landsat 8, OLI/TIRS) were downloaded and analyzed for LST ArcGIS using the mono-window algorithm. The year 2019 revealed a maximum LST of 47.68 °C for June in comparison with an LST of 44.8 °C for June 2010 and 40.4 °C for May 2000. The city’s temporal and spatial changes over the past decades (2000–2019) were studied by the technique of change detection. To study land use and land cover changes, supervised classification using ERDAS was done. The supervised classification (maximum likelihood classifier) has been used to identify the five major categories of LULC for the period years 2000, 2010 and 2019. The study found that since 2000, the city’s most abundant resource of agricultural land 2000 saw a sharp decline of 60% in 2019. This seems to be utilized by the urban built-up because the urban areas also saw an increment of more than 62% for the same time frame. The classification had accuracy of 96.67%, 94% and 86.67% for the years 2000, 2010 and 2019, respectively. Studies involving LULC classification are important because they represent how human activities are modifying ecology. The classification helped establish that the agricultural areas of Gurugram are on a rapid decline, whereas urban built-up areas have significantly doubled in the past two decades. The study helps in understanding the impacts of urbanization patterns for a fast-expanding metropolis and the possible interventions to be made by urban planners and policy managers to prevent further aggravation of UHI and plan mitigation strategies.
Impact of Urbanization on Land Use and Land Cover Change and Land Surface Temperature in a Satellite Town
GIScience & Geo-environmental Modelling
Rahman, Atiqur (editor) / Sen Roy, Shouraseni (editor) / Talukdar, Swapan (editor) / Shahfahad (editor) / Malcoti, Manisha D. (author) / Zia, Hina (author) / Kabre, Chitrarekha (author)
2023-03-04
15 pages
Article/Chapter (Book)
Electronic Resource
English
Urban heat island , Remote sensing , Land surface temperature (LST) , Land use and land cover (LULC) , Normalized differential built-up index (NDBI) Environment , Environment, general , Computer Applications , Geography, general , Urban Ecology , Ecology , Climate, general , Earth and Environmental Science
Characterizing the relationship between land use land cover change and land surface temperature
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