O uso do solo e os padrões de vento: o caso da cidade de Belo Horizonte, MG

• Ano de defesa: 2009
• Autor(a) principal: Daniele Gomes Ferreira
• Tipo de documento: Dissertação
• Tipo de acesso: Acesso aberto
• Idioma: por
• Instituição de defesa: Universidade Federal de Minas Gerais; UFMG
• Palavras-chave em Português: Simulação computacional; Vento; Planejamento urbano; Arquitetura Aspectos ambientais; Climatologia urbana Belo Horizonte (MG); Planejamento urbano Fatores climaticos; Arquitetura
• Link de acesso: http://hdl.handle.net/1843/MMMD-8P9H6L

This work investigated land use impact on wind patterns in the city of Belo Horizonte. Applying computational simulation techniques and a temporal view of urban increase, it is expected that the methodology of this study could be used in urban planning. Three parameters were considered important for input simulation, using the software WindMapTM: terrain, land use and wind. The terrain was reproduced through a digital terrain model. Roughness length (z0), determined by morphometric methods, was used to demonstrate aerodynamic characteristics of land use. A satellite image classification was utilized to identify land use classes in the city in three different moments of urban increase: 1987, 1996 and 2006. All these data produced a digital elevation model of each year. Wind could be characterized by episodes which establish different conditions of atmospheric circulation in local scale. They show stable and unstable atmospheric situations which are representative of annual mean wind and summer conditions, respectively. Meteorological stations data and soundings described wind direction and speed. Computational simulations were performed to compare land use influence and terrain effects on wind patterns. Results pointed out slow wind speed in testes with digital elevation model. Also, they showed that urban surfaces with high density buildings present higher wind speed reductions than those with medium density. In addition, it is possible to conclude that the methodology applied in this study produced satisfactory results of wind patterns analysis and could be used in urban planning practices.