Monday, February 8, 2021

Can urban heat be mitigated in a single urban street? Monitoring, strategies, and performance results from a real scale redevelopment project

Urban overheating affects the health and wellbeing of communities, the environmental quality, and the economic performance of cities. This study demonstrates that outdoor thermal comfort can be improved in a single street by decreasing ambient (Ta) and surface (Ts) temperatures by implementing innovative and traditional heat mitigation strategies. Ten scenarios were modelled in ENVI-met and evaluated based on detailed in-situ and airborne-based meteorological data collected along Phillip Street (Parramatta) in Sydney, Australia. The best-performing scenario combining reflective materials, increased greenery, spray systems, and traditional shading provides a very significant reduction of Ta and Ts of up to 3.3 °C and 30.9 °C, respectively.

Sunday, February 7, 2021

On the impact of modified urban albedo on ambient temperature and heat related mortality

Do u know that the magnitude of the temperature drop caused by the albedo increase in cities is close to 0.09C per 0.1 rise of the albedo ? Also that the levels of the urban heat related mortality increase significantly as a function of the population size of the cities and the local poverty levels while ncreased urban albedo reduces heat related mortality between 0.1 and 4 deaths per day, corresponding to an average decrease of deaths close to 19.8% per degree of temperature drop, or 1.8% per 0.1 increase of the albedo?

Read more:

https://www.sciencedirect.com/science/article/abs/pii/S0038092X21000475?dgcid=author