Models-3 Users

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Models-3 Users WorkshopRaleigh, North
CarolinaOctober 27-23, 2003
New Developments and Applications of Models-3in
Canada
J. Wayne Boulton, Mike Lepage, Xin Qiu, and
Martin Gauthier RWDI West Inc., Guelph, Ontario,
Canada Colin di Cenzo Environment Canada PYR,
Vancouver, British Columbia, Canada
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New Developments

• MC2 to MM5 converter
• Convert MC2 output for input to SMOKE CMAQ
• Re-project and interpolate horizontal grids
• Convert vertical grid to MM5 sigma levels
• Map different parameters between MC2 and MM5
• Parallel processor CMAQ runs on LINUX
• Compile CMAQ (source libraries) to run in
  parallel distributed LINUX environment (with UC
  Riverside)
• Real-time AQ forecasting (MC2, SMOKE, CMAQ)
• Assist University of B.C. staff to setup of
  real-time 12-km 4-km regional AQ forecasts for
  the PNW

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PNW Model Domains
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MC2 to MM5
Interpolation between projections and grid
resolutions
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MC2 to MM5
Mapping Time Invariant Time Variant params
from MC2 to MM5
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MC2 to MM5
Conversion performance evaluation
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Parallel CMAQ Performance
CPU time elapsed (seconds), and Percent () time
relative to a single-CPU run.
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Vancouver
CMAQ Model Performance
PM2.5 (µg/m3)
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Ozone (ppbV)
Chilliwack
CMAQ Model Performance
PM2.5 (µg/m3)
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New Applications

• CMAQ runs in support of Health Canada risk
  assessments
• 75 electric vehicle fleet penetration with four
  electricity production scenarios
• GIS-based post-processing routines developed
• Ethanol blend fuel (E10) scenarios (ongoing)
• CMAQ runs in support of emission source
  contribution assessments from power plants
• Various emission / source contribution scenarios
• Hourly power plant emissions modelled in SMOKE
• Development of improved spatial surrogates and
  temporal profiles for SMOKE
• Based on traffic demand model (EMME/2) outputs

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On-Road Vehicle Surrogates Temporal Profiles
Spatial Surrogate Techniques a) Road length b)
VMT (traffic demand model)
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