COVID-19;
pandemic;
Urban heat island;
Temperature departures;
Tehran metropolis;
CLIMATE ZONE CLASSIFICATION;
LOCAL CLIMATE;
SPRAWL;
PRECIPITATION;
TEMPERATURE;
POPULATION;
MODELS;
COVER;
D O I:
10.1016/j.scs.2021.103263
中图分类号:
TU [建筑科学];
学科分类号:
0813 ;
摘要:
The increasing expansion of urban environments with associated transformation of land-cover has led to the formation of urban heat islands (UHI) in many urbanized regions worldwide. COVID-19 related environmental impacts, through reduced urban activities, is worthy of investigation as it may demonstrate human capacity to manage UHI. We aim to establish the thermal impacts associated with COVID-19 induced urban 'lockdown' from 20 March to 20 April 2020 over Tehran. Areal changes in UHI are assessed through Classification and Regression Trees (CART), measured against background synoptic scale temperature changes over the years 1950-2020. Results indicate that monthly Tmean, Tmax and Tmin values during this time were considerably lower than longterm mean values for the reference period. Although the COVID-19 initiated shutdown led to an identifiable temperature anomaly, we demonstrate that this is not a product of upper atmospheric or synoptic conditions alone. We also show that the cooling effect over Tehran was not spatially uniform, which is likely due to the complexity of land uses such as industrial as opposed to residential. Our findings provide potentially valuable insights and implications for future management of urban heat islands during extreme heat waves that pose a serious threat to human health.
机构:
Hong Kong Polytech Univ, Dept Land Surveying & Geoinformat, Hong Kong, Peoples R China
Hong Kong Polytech Univ, Res Inst Sustainable Urban Dev, Hong Kong, Peoples R ChinaShenzhen Univ, Coll Management, Nanhai Ave 3688, Shenzhen 518060, Peoples R China
Abbas, Sawaid
Qamer, Faisal Mueen
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机构:
Int Ctr Integrated Mt Dev ICIMOD, Kathmandu 44700, NepalShenzhen Univ, Coll Management, Nanhai Ave 3688, Shenzhen 518060, Peoples R China
Qamer, Faisal Mueen
Wong, Man Sing
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机构:
Hong Kong Polytech Univ, Dept Land Surveying & Geoinformat, Hong Kong, Peoples R China
Hong Kong Polytech Univ, Res Inst Sustainable Urban Dev, Hong Kong, Peoples R ChinaShenzhen Univ, Coll Management, Nanhai Ave 3688, Shenzhen 518060, Peoples R China
Wong, Man Sing
Rasul, Ghulam
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机构:
Int Ctr Integrated Mt Dev ICIMOD, Kathmandu 44700, NepalShenzhen Univ, Coll Management, Nanhai Ave 3688, Shenzhen 518060, Peoples R China
Rasul, Ghulam
Irteza, Syed Muhammad
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机构:
Univ Punjab, Natl Ctr GIS & Space Applicat, Remote Sensing GIS & Climat Res Lab RSGCRL, Lahore, PakistanShenzhen Univ, Coll Management, Nanhai Ave 3688, Shenzhen 518060, Peoples R China
Irteza, Syed Muhammad
Shahzad, Naeem
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Hong Kong Polytech Univ, Dept Land Surveying & Geoinformat, Hong Kong, Peoples R ChinaShenzhen Univ, Coll Management, Nanhai Ave 3688, Shenzhen 518060, Peoples R China
机构:
Univ Kalyani, Dept Physiol, Ergon & Occupat Physiol Lab, Nadia 74123, W Bengal, IndiaUniv Kalyani, Dept Physiol, Ergon & Occupat Physiol Lab, Nadia 74123, W Bengal, India
Majumdar, Piya
Mandi, Sasangbaha
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Univ Kalyani, Dept Physiol, Ergon & Occupat Physiol Lab, Nadia 74123, W Bengal, IndiaUniv Kalyani, Dept Physiol, Ergon & Occupat Physiol Lab, Nadia 74123, W Bengal, India
Mandi, Sasangbaha
Biswas, Ankita
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Univ Kalyani, Dept Physiol, Ergon & Occupat Physiol Lab, Nadia 74123, W Bengal, IndiaUniv Kalyani, Dept Physiol, Ergon & Occupat Physiol Lab, Nadia 74123, W Bengal, India
Biswas, Ankita
Nayak, Prasunpriya
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机构:
All India Inst Med Sci, Dept Physiol, Jodhpur, Rajasthan, IndiaUniv Kalyani, Dept Physiol, Ergon & Occupat Physiol Lab, Nadia 74123, W Bengal, India
Nayak, Prasunpriya
Sahu, Subhashis
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Univ Kalyani, Dept Physiol, Ergon & Occupat Physiol Lab, Nadia 74123, W Bengal, IndiaUniv Kalyani, Dept Physiol, Ergon & Occupat Physiol Lab, Nadia 74123, W Bengal, India
机构:
Yale Univ, Sch Environm, New Haven, CT 06511 USAYale Univ, Sch Environm, New Haven, CT 06511 USA
Chakraborty, T. C.
Sarangi, Chandan
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机构:
Indian Inst Technol Madras, Dept Civil Engn, Chennai 600036, Tamil Nadu, India
Indian Inst Technol Madras, Lab Atmospher & Climate Sci, Chennai 600036, Tamil Nadu, IndiaYale Univ, Sch Environm, New Haven, CT 06511 USA