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Lisbon Urban Heat Island Updated: new Highlights about the Relationships between Thermal Patterns and Wind Regimes
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Orientador(es)
Resumo(s)
Urban growth implies significant modifications in the urban climate. To understand the influence of the city of Lisbon on the
urban boundary layer, a mesoscalemeteorological network was installed in 2004. The main goals of the present study are to update
the results of the research published in 2007 and to bring more precise information about the relationship between the Urban
Heat Island (UHI) and the regional and local wind systems. The highest frequencies of the UHI were found in the city centre
(Restauradores). In the green park ofMonsanto, the highest frequency occurred between −2 and0∘C.During the summer, the effect
of the breezes was observed in Bel´em, lowering the temperature.The“strong” UHI (intensity >4∘C) occurredmore often during the
summer, with median values of 2∘C by night and 1.8∘C by day.The highest frequencies of UHI occurred for winds between 2 and
6m/s and were not associated with atmospheric calm, as pointed out in the literature.Winds above 8m/s inhibit the occurrence of
strong UHI in Lisbon. Summer nighttime strong UHI should be further investigated, due to the heat stress consequences on the
population and probable increase of energy consumption.
Descrição
Palavras-chave
urban growth urban climate urban Heat Island Lisbon
Contexto Educativo
Citação
António Lopes, Elis Alves, Maria João Alcoforado, and Raquel Machete, “Lisbon Urban Heat Island Updated: New Highlights about the Relationships between Thermal Patterns and Wind Regimes,” Advances in Meteorology, vol. 2013, Article ID 487695, 11 pages, 2013. doi:10.1155/2013/487695
Editora
Hindawi Publishing Corporation