Lisbon Urban Heat Island Updated: New Highlights about the Relationships between Thermal Patterns and Wind Regimes
Urban growth implies significant modifications in the urban climate. To understand the influence of the city of Lisbon on the urban boundary layer, a mesoscale meteorological network was installed in 2004. The main goals of the present study are to update the results of the research published in 200...
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| Format: | Article |
| Language: | English |
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Wiley
2013-01-01
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| Series: | Advances in Meteorology |
| Online Access: | http://dx.doi.org/10.1155/2013/487695 |
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| author | António Lopes Elis Alves Maria João Alcoforado Raquel Machete |
| author_facet | António Lopes Elis Alves Maria João Alcoforado Raquel Machete |
| author_sort | António Lopes |
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| description | Urban growth implies significant modifications in the urban climate. To understand the influence of the city of Lisbon on the urban boundary layer, a mesoscale meteorological 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 of Monsanto, the highest frequency occurred between −2 and 0°C. During the summer, the effect of the breezes was observed in Belém, lowering the temperature. The “strong” UHI (intensity >4°C) occurred more 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 6 m/s and were not associated with atmospheric calm, as pointed out in the literature. Winds above 8 m/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. |
| format | Article |
| id | doaj-art-6c17240e183143058330fe2d365fe166 |
| institution | Kabale University |
| issn | 1687-9309 1687-9317 |
| language | English |
| publishDate | 2013-01-01 |
| publisher | Wiley |
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| series | Advances in Meteorology |
| spelling | doaj-art-6c17240e183143058330fe2d365fe1662025-02-03T01:12:18ZengWileyAdvances in Meteorology1687-93091687-93172013-01-01201310.1155/2013/487695487695Lisbon Urban Heat Island Updated: New Highlights about the Relationships between Thermal Patterns and Wind RegimesAntónio Lopes0Elis Alves1Maria João Alcoforado2Raquel Machete3Institute of Geography and Spatial Planning (IGOT-UL), Center of Geographical Studies (Climate Change and Environmental Systems Research Group), University of Lisbon, Av. Prof. Gama Pinto, 1649-003 Lisboa, PortugalInstitute of Geography and Spatial Planning (IGOT-UL), Center of Geographical Studies (Climate Change and Environmental Systems Research Group), University of Lisbon, Av. Prof. Gama Pinto, 1649-003 Lisboa, PortugalInstitute of Geography and Spatial Planning (IGOT-UL), Center of Geographical Studies (Climate Change and Environmental Systems Research Group), University of Lisbon, Av. Prof. Gama Pinto, 1649-003 Lisboa, PortugalInstitute of Geography and Spatial Planning (IGOT-UL), Center of Geographical Studies (Climate Change and Environmental Systems Research Group), University of Lisbon, Av. Prof. Gama Pinto, 1649-003 Lisboa, PortugalUrban growth implies significant modifications in the urban climate. To understand the influence of the city of Lisbon on the urban boundary layer, a mesoscale meteorological 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 of Monsanto, the highest frequency occurred between −2 and 0°C. During the summer, the effect of the breezes was observed in Belém, lowering the temperature. The “strong” UHI (intensity >4°C) occurred more 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 6 m/s and were not associated with atmospheric calm, as pointed out in the literature. Winds above 8 m/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.http://dx.doi.org/10.1155/2013/487695 |
| spellingShingle | António Lopes Elis Alves Maria João Alcoforado Raquel Machete Lisbon Urban Heat Island Updated: New Highlights about the Relationships between Thermal Patterns and Wind Regimes Advances in Meteorology |
| title | Lisbon Urban Heat Island Updated: New Highlights about the Relationships between Thermal Patterns and Wind Regimes |
| title_full | Lisbon Urban Heat Island Updated: New Highlights about the Relationships between Thermal Patterns and Wind Regimes |
| title_fullStr | Lisbon Urban Heat Island Updated: New Highlights about the Relationships between Thermal Patterns and Wind Regimes |
| title_full_unstemmed | Lisbon Urban Heat Island Updated: New Highlights about the Relationships between Thermal Patterns and Wind Regimes |
| title_short | Lisbon Urban Heat Island Updated: New Highlights about the Relationships between Thermal Patterns and Wind Regimes |
| title_sort | lisbon urban heat island updated new highlights about the relationships between thermal patterns and wind regimes |
| url | http://dx.doi.org/10.1155/2013/487695 |
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