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  4. Exploring the relationship between urban form and land surface temperature (LST) in a semi-arid region Case study of Ben Guerir city - Morocco
 
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Exploring the relationship between urban form and land surface temperature (LST) in a semi-arid region Case study of Ben Guerir city - Morocco

AMZI, Rida
•
DIOP, El Bachir
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TEKOUABOU KOUMETIO, Cedric Stephane
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July 31, 2021
Environmental Challenges

Surface temperature is one of the critical factors used to study microclimate conditions through Land surface Temperature (LST), a widely used data source. This paper tests a classification approach using moderate spatial satellite resolution images to extract surface properties of Local Climate Zones (LCZs) in a semi-arid region against measured LSTs. However, LST is used to study and explore the spatial relationship between temperature and urban morphology. Therefore, it is considered an alternative and reliable data source to complement in-situ measurement, especially in developing countries. The used methodology is based on two statistical approaches: 1) auto-spatial correlation using Getis Ord Gi* statistic, and 2) ANOVA test. Results showed an inversion effect of surface urban heat island - SUHI, where a strong correlation between specific LCZs and the surface temperature was found. The urban classes represented by open-low-rise, compact-low-rise have shown a significant decrease in surface temperature for almost two decades and in both summer and winter seasons compared to non-urban ones. Therefore, the outcomes of this study may have critical implications for urban planners who seek to mitigate SUHI effects in arid and semi-arid urban areas. Also, the approach used in this study can be helpful to follow the urban environment's spatial and temporal development as an application framework of sustainable development.

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1-s2.0-S2667010021002080-main.pdf

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openaccess

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CC BY-NC-ND

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3.43 MB

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039c7642f790215ee28787fab430a8dd

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