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CESAR Project 2: Modelling Climate
CESAR Project 2: Modelling Climate
CESAR Project 2: Modelling Climate
CESAR Project 2: Modelling Climate
CESAR Project 2: Modelling Climate
CESAR Project 2: Modelling Climate
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CESAR Project 2: Modelling Climate

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  • 1. CESAR - Project 2 Modelling urban climate Natalie Theeuwes, Gert-Jan Steeneveld, Bert van Hove , Bert Holtslag
  • 2. Activities CESAR project 2 Assessment model performance for the Randstad; • derivation of geometrical and thermo graphic parameters 1 from observations and model simulation; • testing sensitivity of modeled temperature, humidity and wind (P1) against modifications in most important model parameters • sensitivity study with different PBL + UCM schemes Impacts of a limited set of important weather events and of spatial configurations on meteorological fields in the Randstad Assessing model output requirements for coupling to Urban Strategy Further model validation and parameterization against observational data; 2 assessing relationships between UHI(max), thermal comfort (heat stress), & and urban features (P2, →US) 3 Running the model for various weather scenarios, and spatial and socio-economical scenarios for the urban environment in the Randstad (P3) 4 Providing updates for implementation in Urban Strategy Completing of PhD thesis and final publications (P4, P5)
  • 3. Model parameterization and validation by observations CESAR – Project 2: Meteorological Processes Many new urban canopy schemes on the market, but: What is the skill for urban canopy schemes at street level (micro scale) and mesoscale?
  • 4. Derivation universal relationships for Urban Strategy Oke (1987): CESAR – Project 2: Meteorological Processes WRF too extensive for Urban Strategy: Once validated, derive universal Modification of urban temperature ∆T as a function of H/W geometry for functions/relationships between urban heat several values of ∆ε (ref. ε = 0.80) and city parameters, incoming radiation, geo-wind for use in Urban Strategy ε - emissivity Montavez et al 2008
  • 5. Which data/information do we need? KvK Theme 4 Climate proofing cities •Observations •Modeling (meso– and microscale) CESAR KvK Theme 6 Project 1 Scenarios for regional climate CESAR project 2 Project 3 Urban area features (configuration, morphology) Project 4 Scenarios for spatial and socio- economic developments Randstad
  • 6. Which data/information do we need? Which weather conditions? Which types of urban environment? Input requirements Urban Strategy? Feedback stakeholders? Output format/presentation results? (e.g. statistical/numerical?) Assistance in obtaining spatial and socio-economical information ……………..

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