Redirigiendo al acceso original de articulo en 21 segundos...
Inicio  /  Urban Science  /  Vol: 2 Núm: 1 Par: March (2018)  /  Artículo
ARTÍCULO
TITULO

Impact of Highly Reflective Materials on Meteorology, PM10 and Ozone in Urban Areas: A Modeling Study with WRF-CHIMERE at High Resolution over Milan (Italy)

Serena Falasca and Gabriele Curci    

Resumen

The Urban Heat Island (UHI) is a well-known phenomenon concerning an increasing percentage of the world?s population due to the growth rates of metropolitan areas. Given the health and economic implications of UHIs, several mitigation techniques are being evaluated and tested. In this study, we consider the use of highly reflective materials for urban surfaces, and we carried out numerical experiments using the Weather Research and Forecasting model coupled with the CHIMERE model in order to investigate the effects of these materials on the meteorology and air quality in the urban area of Milan (Italy). Results show that an increase in albedo from 0.2 to 0.7 for urban roofs, walls and streets leads to a decrease in UHI intensity by up to 2?3 °C and of the planetary boundary layer (PBL) height of about 500 m. However, the difference of PM10 and ozone between urban and surrounding areas increases by a factor of about 2, attributable to the reduction of PBL height and wind speed and to the increased reflected solar radiation that may enhance photochemical production during the daytime. Therefore, if anthropogenic emissions are held at the same levels, the potential benefit to the UHI in terms of thermal discomfort may have negative repercussions on air quality.

 Artículos similares

       
 
William Beck, Thomas Isenhart, Peter Moore, Keith Schilling, Richard Schultz and Mark Tomer    
Streambank erosion may represent a significant source of sediment and phosphorus (P) to overall watershed loads; however, watershed-scale quantification of contributions is rare. In addition, streambanks are often comprised of highly variable stratigraph... ver más
Revista: Water

 
Rafael Robina Ramírez and Luis A. Sañudo-Fontaneda    
Since 1996, the South African government has undertaken a considerable project to fulfil the proclaimed right of citizens to access sufficient water and sanitation (Government of South Africa, 1996) through traditional water management and water governan... ver más
Revista: Water

 
Wen-Hsien Tsai and Shang-Yu Lai    
In the last 20 years, with the liberalization of the economy, and the trend of industrial globalization, people have gradually paid more attention to environmental protection. With the tremendous advances in information technology, enterprises facing suc... ver más

 
Chiara Giosuè, Alberto Belli, Alessandra Mobili, Barbara Citterio, Francesca Biavasco, Maria Letizia Ruello and Francesca Tittarelli    
Revista: Buildings

 
Francisco Martins Portelinha Júnior, Antonio Carlos Zambroni de Souza, Miguel Castilla, Denisson Queiroz Oliveira and Paulo Fernando Ribeiro    
Microgrids are a feasible path to deploy smart grids, an intelligent and highly automated power system. Their operation demands a dedicated communication infrastructure to manage, control and monitor the intermittent sources of energy and loads. Therefor... ver más
Revista: Energies