Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Surface urban heat island and buildings energy: visualization of urban climatic flows
The surface urban heat island (SUHI) effect can be defined as the relative warmth of urban surfaces compared with its surroundings due to the difference in their respective cooling rates. Classic studies have demonstrated that urban warming is a regional and occasional phenomenon whose occurrence depends on weather conditions and characteristics of the urban fabric. Satellite imagery and GIS are combined in this paper to unveil patterns in thermal variations across cities and relate air temperature to density or land cover. Six European regions were selected: Madrid (40ºN, 3ºE), Cologne (50ºN, 6ºE), Barcelona (41ºN,2ºE) London (51ºN,0.5ºW), Brussels(50ºN,4ºE) and Berlin(52ºN,13ºE). Images with information on surface temperature were obtained from Modis Satellite database. Over 120 files were scrutinized to select 6 winter and summer days and nights. From these, six summer nights are presented as they offer the clearest land surface temperature distribution. The spatial correlation between air temperature, density and land cover was analysed in GIS and plotted as citywide cross sections. The strongest correspondence was found between density and land cover. Finally, the influence of UHI in the energy demand of domestic buildings in London and Barcelona was investigated. This analysis showed the greater relative impact of this phenomenon in warmer regions.
Surface urban heat island and buildings energy: visualization of urban climatic flows
The surface urban heat island (SUHI) effect can be defined as the relative warmth of urban surfaces compared with its surroundings due to the difference in their respective cooling rates. Classic studies have demonstrated that urban warming is a regional and occasional phenomenon whose occurrence depends on weather conditions and characteristics of the urban fabric. Satellite imagery and GIS are combined in this paper to unveil patterns in thermal variations across cities and relate air temperature to density or land cover. Six European regions were selected: Madrid (40ºN, 3ºE), Cologne (50ºN, 6ºE), Barcelona (41ºN,2ºE) London (51ºN,0.5ºW), Brussels(50ºN,4ºE) and Berlin(52ºN,13ºE). Images with information on surface temperature were obtained from Modis Satellite database. Over 120 files were scrutinized to select 6 winter and summer days and nights. From these, six summer nights are presented as they offer the clearest land surface temperature distribution. The spatial correlation between air temperature, density and land cover was analysed in GIS and plotted as citywide cross sections. The strongest correspondence was found between density and land cover. Finally, the influence of UHI in the energy demand of domestic buildings in London and Barcelona was investigated. This analysis showed the greater relative impact of this phenomenon in warmer regions.
Surface urban heat island and buildings energy: visualization of urban climatic flows
Jorge Rodríguez-Álvarez (Autor:in)
2016
Aufsatz (Zeitschrift)
Elektronische Ressource
Unbekannt
Metadata by DOAJ is licensed under CC BY-SA 1.0
Urban heat island effect on energy application studies of office buildings
| Online Contents | 2014
Countermeasures to Urban Heat Island Considering Urban Energy Usage
| Springer Verlag | 2019
Assessment of the Effects of Urban Heat Island on Buildings
| Springer Verlag | 2020
On the energy impact of urban heat island and global warming on buildings
| Online Contents | 2014