Urban heat island and thermal comfort of Esfahan City (Iran) during COVID-19 lockdown. (10th June 2022)
- Record Type:
- Journal Article
- Title:
- Urban heat island and thermal comfort of Esfahan City (Iran) during COVID-19 lockdown. (10th June 2022)
- Main Title:
- Urban heat island and thermal comfort of Esfahan City (Iran) during COVID-19 lockdown
- Authors:
- Roshan, Gholamreza
Sarli, Reza
Fitchett, Jennifer M. - Abstract:
- Abstract: The Urban Heat Island (UHI), driven in part by urban green space transformation, and resulting in bioclimatic stress, is one of the major environmental problems facing cities today. A brief reprise in UHI severity is hypothesised to have occurred for many cities during COVID-19 lockdown, as a result of the marked reduction in individual and industrial activities. This study explores the UHI the city of Esfahan, one of the major metropolises of Iran, comparing the urban temperature for the period 20 March to 20 April 2020, the first lockdown period in Iran, with a long term mean for this month calculated from 2000 to 2019. During the lockdown period, the UHI effect covered a much smaller land area than in all prior years investigated. The land surface area which experienced heat stress reduced significantly during the lockdown period, and the total energy heating requirement (heat degree days) increased by 23, 945.2° day calories compared to the long term average. These results demonstrate the significant changes in UHI and related variables during lockdown. While lockdown regulations are not sustainable in the long run, the improvements recorded demonstrate the potential to mitigate anthropogenic heating. Graphical abstract: Image 1 Highlights: COVID-19 lockdown resulted in reduced pollution and anthropogenic heating globally with the suspension of industrial activities. This has the potential to reduce the intensity and land surface area of urban heat islands, andAbstract: The Urban Heat Island (UHI), driven in part by urban green space transformation, and resulting in bioclimatic stress, is one of the major environmental problems facing cities today. A brief reprise in UHI severity is hypothesised to have occurred for many cities during COVID-19 lockdown, as a result of the marked reduction in individual and industrial activities. This study explores the UHI the city of Esfahan, one of the major metropolises of Iran, comparing the urban temperature for the period 20 March to 20 April 2020, the first lockdown period in Iran, with a long term mean for this month calculated from 2000 to 2019. During the lockdown period, the UHI effect covered a much smaller land area than in all prior years investigated. The land surface area which experienced heat stress reduced significantly during the lockdown period, and the total energy heating requirement (heat degree days) increased by 23, 945.2° day calories compared to the long term average. These results demonstrate the significant changes in UHI and related variables during lockdown. While lockdown regulations are not sustainable in the long run, the improvements recorded demonstrate the potential to mitigate anthropogenic heating. Graphical abstract: Image 1 Highlights: COVID-19 lockdown resulted in reduced pollution and anthropogenic heating globally with the suspension of industrial activities. This has the potential to reduce the intensity and land surface area of urban heat islands, and alleviate the reliance on cooling energy. We explore changes in the UHI size, position and intensity, and cooling and heating requirements for Esfahan City. Statistically significant decreases in temperature for 2020 relative to 2000-2019, increased heating energy requirements. … (more)
- Is Part Of:
- Journal of cleaner production. Volume 352(2022)
- Journal:
- Journal of cleaner production
- Issue:
- Volume 352(2022)
- Issue Display:
- Volume 352, Issue 2022 (2022)
- Year:
- 2022
- Volume:
- 352
- Issue:
- 2022
- Issue Sort Value:
- 2022-0352-2022-0000
- Page Start:
- Page End:
- Publication Date:
- 2022-06-10
- Subjects:
- Thermal stress -- Hot spot -- Cold spot -- Heating requirement -- Esfahan metropolis
Factory and trade waste -- Management -- Periodicals
Manufactures -- Environmental aspects -- Periodicals
Déchets industriels -- Gestion -- Périodiques
Usines -- Aspect de l'environnement -- Périodiques
628.5 - Journal URLs:
- http://www.sciencedirect.com/science/journal/09596526 ↗
http://www.elsevier.com/journals ↗ - DOI:
- 10.1016/j.jclepro.2022.131498 ↗
- Languages:
- English
- ISSNs:
- 0959-6526
- Deposit Type:
- Legaldeposit
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- Available online (eLD content is only available in our Reading Rooms) ↗
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- British Library DSC - 4958.369720
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