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Presentation
WRF-UCM and CMAQ very high resolution simulations (200 m spatial resolution) over London (UK), Athens (Greece), Gliwice (Poland), Helsinki (Finland) and Florence (Italy)
11th Urban Environment Symposium (2012)
  • R. San José
  • J.L. Pérez
  • Nektarios Chrysoulakis
  • R.M. González
Abstract
Numerical techniques for simulation of the atmospheric dynamics have been improved substantially and the advanced of the computer power allows performing very high resolution simulations. One of the more advanced mesoscale meteorological model is the Weather Research and Forecasting (WRF) [Skamarock W.C. et al. 2005] model developed by NCAR (US). Over urban areas the resolution has to become higher and mesoscale meteorological models have been “urbanized” in order to introduce the urban effects in the mesoscale flow In order to better represent the physical processes involved in the exchange of heat, momentum, and water vapor in urban environment in mesoscale model, the Urban Canopy Model (UCM) [Kusaka H. et al. 2001] is used with the WRF model. WRF/UCM outputs have been used to drive air quality simulations with the Community Multi-scale Air Quality (CMAQ) [Byum et al.] modelling system (EPA, US). An off-line linkage between WRF and CMAQ has been implemented through the MCIP interface processor, The results showed in this paper, are part of the activities into the FP7 EU project “Sustainable urban planning decision support accounting for urban metabolism (BRIDGE)”. It provides the means to close the gap between bio-physical sciences and urban planners and to illustrate the advantages of accounting for urban metabolism issues on a routine basis in design decisions. BRIDGE is focused on the following components of urban metabolism: Energy, water, carbon and pollutants. The WRF/UCM-CMAQ high resolution (200 m.) simulated datasets have been integrated in a Decision Support System (DSS). The environmental impacts of the respective physical flows can be assessed with the DSS which will be used to support the decision making needed to achieve the above challenges by proposing quantitative measures and guidelines for sustainable use of energy and materials in urban planning. Five European cities have been selected as BRIDGE case studies: Helsinki, Finland; Athens, Greece; London, United Kingdom; Firenze, Italy and Gliwice, Poland.
Keywords
  • WRF‐UCM and CMAQ modelling; urban environment
Publication Date
September 19, 2012
Citation Information
San José, R., Pérez, J. L., Crysoulakis, N. and González, R. M., 2012. WRF-UCM and CMAQ very high resolution simulations (200 m spatial resolution) over London (UK), Athens (Greece), Gliwice (Poland), Helsinki (Finland) and Florence (Italy). In book of absracts of the 11th Urban Environment Symposium, p. 90, Karlsruhe, Germany, 16 - 19 September.