Prediction of Urban Heat Island Effect over Jinan City Using the Markov-Cellular Automata Model Combined with Urban Biophysical Descriptors

2021 ◽  
Author(s):  
Xiangjin Meng ◽  
Fei Meng ◽  
Zhan Zhao ◽  
Chenglong Yin
Keyword(s):  
Cellular Automata ◽  
Urban Heat Island ◽  
Urban Heat Island Effect ◽  
Heat Island ◽  
Cellular Automata Model ◽  
Island Effect ◽  
Urban Heat ◽  
Jinan City

scholarly journals Impact of Urban Expansion on Rain Island Effect in Jinan City, North China

2021 ◽  
Vol 13 (15) ◽  
pp. 2989
Author(s):  
Yanjun Zhao ◽  
Jun Xia ◽  
Zongxue Xu ◽  
Lei Zou ◽  
Yunfeng Qiao ◽  
...  
Keyword(s):  
Urban Heat Island ◽  
Urban Expansion ◽  
Urban Heat Island Effect ◽  
Heat Island ◽  
Impervious Surfaces ◽  
Rapid Urbanization ◽  
Island Effect ◽  
Urban Heat ◽  
Jinan City ◽  
Precipitation Events

Rapid urbanization leads to changes in urban micro meteorology, such as the urban heat island effect and rain island effect, which eventually brings about urban waterlogging and other problems. In this study, the data of precipitation, temperatures and impervious surfaces with long series and high resolution are used to study the rain island effect in Jinan City, China. MK-Sen’s slope estimator, Pettitt test and Pearson correlation analysis are used to quantitatively analyze the effects of urban expansion on extreme climate indices. The results show that Jinan City has experienced rapid urbanization since the 1978 economic reform, and the impervious surface areas have increased from 311.68 km2 (3.04%) in 1978 to 2389.50 km2 (23.33%) in 2017. Urban expansion has a significant impact on temperature, with large variations in extreme temperature indices over the intensive construction area relative to the sparse construction area, as well as significant positive correlations with impervious surfaces. Jinan City shows a certain degree of rain island effect, which seems to be spatially correlated with the urban heat island effect. The frequency of short-duration precipitation events significantly increases and the intensity of precipitation events generally increases. The magnitude and frequency of extreme precipitation indices in the intensive construction area significantly increases when compared to that in the sparse construction area, and they have a significant correlation with impervious surfaces. The tendency of Jinan City’s precipitation regime center shifts toward the intensive construction area.

Impact of the urban heat island effect on the climate of the State of Qatar

2021 ◽  
Vol 24 (3/4) ◽  
pp. 400
Author(s):  
Mohammed Al Marzooqi ◽  
Hazrat Bilal ◽  
Rajesh Govindan ◽  
Krishna Kumar Kanikicharla ◽  
Tareq Al Ansari
Keyword(s):  
Urban Heat Island ◽  
The State ◽  
Urban Heat Island Effect ◽  
Heat Island ◽  
Island Effect ◽  
Urban Heat

scholarly journals Patterns of Urban Heat Island Effect in Adelaide: A Mobile Traverse Experiment

2017 ◽  
Vol 11 (4) ◽  
pp. 80
Author(s):  
Ehsan Sharifi ◽  
Ali Soltani
Keyword(s):  
Heat Stress ◽  
Urban Heat Island ◽  
Urban Policy ◽  
Urban Heat Island Effect ◽  
Urban Structure ◽  
Heat Island ◽  
Near Surface ◽  
Island Effect ◽  
Urban Rural ◽  
Urban Heat

Urban structure, hard surfaces and shortage of vegetation cause an artificial temperature increase in cities, known as the urban heat island effect. This paper determines the daily patterns of urban heat in Adelaide, Australia. The near-surface temperature profile of Adelaide was mapped in 60 journeys alongside a straight cross route connecting Adelaide Hills to the West Beach between 26 July and 15 August 2013. Results indicate that the most intense urban-rural temperature differences occurred during midnight in Adelaide. However, the afternoon urban heat had more temperature variation in the urban area. In the late afternoon, the near-surface urban heat fluctuates by 2°C within three kilometres and by 1.2°C in just one kilometer. Afternoon heat stress can vary based on space configurations and urban surface covers. Afternoon heat stress causes the highest heat load on urban dwellers. A better understanding of daily urban heat variations in cities assists urban policy making and public life management in the context of climate change.

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