Urban Densification and Urban Climate Change – Assessing Interaction through Densification Scenarios and Climate Simulations

Loibl, Wolfgang and Etminan, Ghazal and Österreicher, Doris and Ratheiser, Matthias and Stollnberger, Romana and Tschannett, Simon and Tötzer, Tanja and Vuckovic, Milena and Walal, Karoline (2019) Urban Densification and Urban Climate Change – Assessing Interaction through Densification Scenarios and Climate Simulations. IS THIS THE REAL WORLD? Perfect Smart Cities vs. Real Emotional Cities. Proceedings of REAL CORP 2019, 24th International Conference on Urban Development, Regional Planning and Information Society. pp. 809-817. ISSN 2521-3938

Text (Urban Densification and Urban Climate Change – Assessing Interaction through Densification Scenarios and Climate Simulations) CORP2019_28.pdf - Published Version Download (2MB)

Abstract

The paper discusses interrelations of urban densification and urban climate under global warming conditions by means of microclimate simulations as well as urban densification scenarios, referring to two research projects exploring test areas in Vienna and Linz, Austria. The impact of the extension of building heights on microclimate in densely urbanized areas is tested applying 3D city models describing building height distribution, surface properties and open space characteristics. In Vienna the densification impact on the local climate is explored for a larger study area by extruding the buildings’ footprints towards the maximum height as allowed by the current zoning regulations. In Linz the urban densification impact on the local climate is tested by adding high-rise buildings which are planned to be developed in a selected neighbourhood. Building height extension scenarios allow on the one side examining the densification potential to create new residential floorspace without requiring additional building land and on the other side to investigate the impact of densification on climate conditions by modelling the effects on heat storage during sunlight hours, nocturnal heat radiation from buildings and air flow. Microclimate simulations show significant differences in the diurnal variation pattern of the mean radiant temperature depending on increase or decrease of shading and heat storage effects due to densification.

Item Type:	Article
Uncontrolled Keywords:	climate simulation, climate-urban fabric interaction, climate change, urban densification, climate adaptation
Subjects:	H Social Sciences > HD Industries. Land use. Labor N Fine Arts > NA Architecture Q Science > QA Mathematics > QA76 Computer software
Depositing User:	REAL CORP Administrator
Date Deposited:	28 Jan 2021 11:50
Last Modified:	28 Jan 2021 15:53
URI:	http://repository.corp.at/id/eprint/505

Actions (login required)

View Item