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Progress on an urban surface energy balance model comparison study. Acknowledge: UK Met Office, Vasilis Pappas (KCL), Rob Mullen (KCL). Sue Grimmond , Martin Best, Janet Barlow King's College London, UK Met Office, University of Reading With (people participating so far):

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progress on an urban surface energy balance model comparison study
Progress on an urban surface energy balance model comparison study

Acknowledge:

  • UK Met Office, Vasilis Pappas (KCL), Rob Mullen (KCL)
  • Sue Grimmond, Martin Best, Janet Barlow
  • King's College London, UK Met Office, University of Reading
  • With (people participating so far):
  • J-J Baik(Korea),M Best (UK), M Bruse(Germany),I Calmet(France), A Dandou(Greece),
  • K Fortuniak (Poland),R Hamdi(Belgium), M Kanda (Japan), H Kondo (Japan),
  • S Krayenhoff (Canada), S-B Limor(Israel), A Martilli(Spain),V Masson (France),
  • K Oleson (USA),A Porson (UK), U Sievers (Germany),H Thompson (UK)

COST-728 Exeter meeting, 3-4 May 2007

variety of applications for urban energy balance models
Variety of Applications for Urban Energy Balance Models
  • For example:
    • Meso-scale modelling
    • Global climate modelling
    • Air quality
    • View factor determinations
    • Heat island studies
    • Upper boundary conditions for other models
    • Weather forecasting
    • Energy assessments
    • Emergency response
  • This Study
    • Suite of different models
    • Range of complexity
    • Range of applications
    • Range of data needs
    • Range of computer needs
    • Common: all run offline
available models
Available models

Computational Requirements

Too expensive to run?

Globally more

applicable?

Parameters difficult to get?

Number of Parameters

multi step model runs
Multi-step model runs
  • Simulation of the components of the surface energy balance (net radiation, storage, sensible and latent heat fluxes) for the location(s) of the evaluation dataset
  • Four stages
    • Different levels of input data are released to the modellers
    • At each stage more information is released about the morphology and physical properties of the site
      • enables determination of model parameters with more accuracy
    • Staged approach to establish the required accuracy for each model parameter by comparing the quality of the simulation at each stage.
final comments
Final Comments
  • Models that are already participating show a wide range of approaches
    • Need to follow up on some details
  • Multiple versions of some individual models are participating
  • Initial trial dataset now available
      • Data back from three groups
      • This is allowing us to iron out issues at both ends
  • People can still participate
    • Encouraged to do so! Contact me: sue.grimmond@kcl.ac.uk
    • Participants will be co-authors in manuscripts etc
  • Waiting to hear if NERC will fund the next parts of this project