A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
A Study on Urban Heat Island Using Geospatial Techniques
Global warming poses a threat to the earth’s climatic system. The rise in long-term temperature of the earth’s surface is a significant consequence of global warming. Urban areas are more susceptible to abnormal rises in temperatures. The higher temperatures in urban areas, generally defined as Urban Heat Island (UHI), pose a severe threat to the fastest-growing cities. Several aspects cause UHI’s, such as replacing natural surfaces with built-up areas, changes in air quality, and anthropogenic heat. UHI is a key driver in the transformation of climate. This article reviews recent trends followed in determining and analyzing UHI and providing thoughtful validation strategies. The elements analyzed in this article include different data products used for identifying various methodologies for determination and analysis of UHI temperature-independent spectral-indices (TISI), Temperature emissivity separation (TES), and Normalized Difference vegetative Index-based emissivity method (NBEM) methodologies. The discussion of this research resembles the study of different algorithms used for multiple Thermal Infra-Red sensors like Landsat 7, 8 and the use of open-source technologies like QGIS. The current study also lists various validation techniques and elaborates the requirement of T-Base, R-base, and inter-comparison techniques for UHI studies. This study is helpful for researchers for identifying the problem and for professionals to take responsible decision-making during urban planning.
A Study on Urban Heat Island Using Geospatial Techniques
Global warming poses a threat to the earth’s climatic system. The rise in long-term temperature of the earth’s surface is a significant consequence of global warming. Urban areas are more susceptible to abnormal rises in temperatures. The higher temperatures in urban areas, generally defined as Urban Heat Island (UHI), pose a severe threat to the fastest-growing cities. Several aspects cause UHI’s, such as replacing natural surfaces with built-up areas, changes in air quality, and anthropogenic heat. UHI is a key driver in the transformation of climate. This article reviews recent trends followed in determining and analyzing UHI and providing thoughtful validation strategies. The elements analyzed in this article include different data products used for identifying various methodologies for determination and analysis of UHI temperature-independent spectral-indices (TISI), Temperature emissivity separation (TES), and Normalized Difference vegetative Index-based emissivity method (NBEM) methodologies. The discussion of this research resembles the study of different algorithms used for multiple Thermal Infra-Red sensors like Landsat 7, 8 and the use of open-source technologies like QGIS. The current study also lists various validation techniques and elaborates the requirement of T-Base, R-base, and inter-comparison techniques for UHI studies. This study is helpful for researchers for identifying the problem and for professionals to take responsible decision-making during urban planning.
A Study on Urban Heat Island Using Geospatial Techniques
Lecture Notes in Civil Engineering
Kumar, Pala Gireesh (editor) / Subramaniam, Kolluru V. L. (editor) / Santhakumar, S. Moses (editor) / Satyam D., Neelima (editor) / Haripavan, N. (author) / Radhakrishnan, Nisha (author) / Kannamma, D. (author)
2022-05-14
9 pages
Article/Chapter (Book)
Electronic Resource
English
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