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Cooling Effects of Blue and Green Infrastructure on Urban Microclimate: A Case Study at Thu Duc District, Ho Chi Minh City
Blue and green infrastructure are potential nature-based solutions to the critical climatic impacts in dense city areas. However, the presence of practical assessment, compared to theoretical research, is still a limit on this topic. This study aimed to numerically and spatially examine the potential effects of blue and green infrastructure on urban microclimate using a case study with scenario analysis. An existing residential area in Thu Duc District, Ho Chi Minh City, was taken for thermodynamic simulations with data from the open sources. Findings were generated by the calculation and demonstration of the air temperature, relative humidity, and heat index values presented at different locations and elevation levels within the given district. The findings confirmed certain cooling effects of blue and green infrastructure in mitigating severe microclimatic conditions and therefore reducing health-related risks. Taking these effects up to the pedestrian level, blue infrastructure can be significantly efficient in heat stress reduction with almost 40% less heat-related danger time and approximately 10% more safe time. The effects were presented at and close to the water body, as well as following the prevailing wind direction. Green infrastructure cooled down the areas along the greenery surfaces due to the reduction of radiant heat flux up to 56.79 W/m2, in combination with shading effects. The outputs of the cooling effects imply the significance of blue and green infrastructure in mitigating severe urban microclimatic conditions. Besides, those measures can also improve land-use efficiency, diversify urban ecosystems, and provide further health-related benefits.
Cooling Effects of Blue and Green Infrastructure on Urban Microclimate: A Case Study at Thu Duc District, Ho Chi Minh City
Blue and green infrastructure are potential nature-based solutions to the critical climatic impacts in dense city areas. However, the presence of practical assessment, compared to theoretical research, is still a limit on this topic. This study aimed to numerically and spatially examine the potential effects of blue and green infrastructure on urban microclimate using a case study with scenario analysis. An existing residential area in Thu Duc District, Ho Chi Minh City, was taken for thermodynamic simulations with data from the open sources. Findings were generated by the calculation and demonstration of the air temperature, relative humidity, and heat index values presented at different locations and elevation levels within the given district. The findings confirmed certain cooling effects of blue and green infrastructure in mitigating severe microclimatic conditions and therefore reducing health-related risks. Taking these effects up to the pedestrian level, blue infrastructure can be significantly efficient in heat stress reduction with almost 40% less heat-related danger time and approximately 10% more safe time. The effects were presented at and close to the water body, as well as following the prevailing wind direction. Green infrastructure cooled down the areas along the greenery surfaces due to the reduction of radiant heat flux up to 56.79 W/m2, in combination with shading effects. The outputs of the cooling effects imply the significance of blue and green infrastructure in mitigating severe urban microclimatic conditions. Besides, those measures can also improve land-use efficiency, diversify urban ecosystems, and provide further health-related benefits.
Cooling Effects of Blue and Green Infrastructure on Urban Microclimate: A Case Study at Thu Duc District, Ho Chi Minh City
Advances in 21st Century Human Settlements
Ha, Vien Thuc (editor) / Nguyen, Hieu Ngoc (editor) / Linke, Hans-Joachim (editor) / Le, Kieu Thi (author) / Schäfer, Stefan (author)
International Conference on Sustainable Urban Development ; 2022 ; Binh Duong - Ho Chi Minh City, Vietnam
Proceedings of the 8th International Conference on Sustainable Urban Development ; Chapter: 8 ; 119-128
2024-07-06
10 pages
Article/Chapter (Book)
Electronic Resource
English
Green Infrastructure Modelling for Assessment of Urban Flood Reduction in Ho Chi Minh city
Springer Verlag | 2019
|DOAJ | 2020
|BASE | 2015
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