Environment Environnement Canada Canada Air Quality Research Branch Meteorological Service of Canada Performance Evaluation Performance Evaluation of AURAMS for Multiple of AURAMS for Multiple Cases Cases Michael Moran , Véronique Bouchet, Wanmin Gong, Paul Makar, Sophie Cousineau, Louis-Philippe Crevier, Ashu Dastoor, Sunling Gong, Sylvain Ménard, and Balbir Pabla Meteorological Service of Canada Toronto, Ontario and Montreal, Quebec
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A ir Quality Research Branch Meteorological Service of Canada Environment Environnement Canada Performance Evaluation of AURAMS for Multiple Cases Michael.
A ir Quality Research Branch Meteorological Service of Canada Environment Environnement Canada AURAMS Is “A Unified Regional Air-quality Modelling System” Episodic, regional, size-resolved, chemically- characterized PM modelling system “Unified’ in sense that it considers multiple air pollutants and can be applied to multiple AQ issues (e.g., PM, acid deposition, tropospheric O 3 ) Consists of 3 main components: regional emissions processing system; nonhydrostatic global meteorological model; “off-line” sectional PM regional air-quality model Current PM resolution: 12 size bins ( m) and 9 chemical components (SO 4 =, NO 3 -, NH 4 +, BC, pOC, sOC, CM, SS, H 2 O)
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Environment EnvironnementCanada Canada
Air Quality Research BranchMeteorological Service of Canada
Performance Evaluation Performance Evaluation of AURAMS for Multiple of AURAMS for Multiple
CasesCasesMichael Moran, Véronique Bouchet, Wanmin Gong, Paul Makar, Sophie
Meteorological Service of CanadaToronto, Ontario and Montreal,
Quebec
Environment EnvironnementCanada Canada
Air Quality Research BranchMeteorological Service of Canada
Talk OutlineTalk Outline•What Is An AURAMS?•Case Studies & AQ Data Sources•Some Operational Evaluation Results•Some Diagnostic Evaluation Results •Some Real-Time Evaluation Results•Summary and Next Steps
Environment EnvironnementCanada Canada
Air Quality Research BranchMeteorological Service of Canada
AURAMS Is “AURAMS Is “AA UUnified nified RRegional egional AAir-quality ir-quality MModelling odelling SSystem”ystem”
• Episodic, regional, size-resolved, chemically-characterized PM modelling system
• “Unified’ in sense that it considers multiple air pollutants and can be applied to multiple AQ issues (e.g., PM, acid deposition, tropospheric O3)
• Consists of 3 main components: regional emissions processing system; nonhydrostatic global meteorological model; “off-line” sectional PM regional air-quality
model• Current PM resolution: 12 size bins (0.01-40.96
m) and 9 chemical components (SO4=, NO3
-, NH4+,
BC, pOC, sOC, CM, SS, H2O)
Environment EnvironnementCanada Canada
Air Quality Research BranchMeteorological Service of Canada
Canadian Emissions Processing System (CEPS)
point mobile area biogenics
GEM(prognostic meteorological
model)
Population dataEconometric data
Land-use data
Geophysical data
National Emission Inventories
(Cdn, U.S.)
Meteorological observations
(OA)
PM2.5, PM10 Concentration Fields
Regional PM Model (CHRONOS+ADOM+CAM+new)Advection/diffusion (of 29 gaseous and 9x12 aerosol tracers) , emission (including gaseous precursors and size-segregated and chemically-resolved PM), dry deposition of gaseous tracer, coupled gaseous, aqueous-phase, aerosol/heterogeneous chemistry, secondary organic aerosol formation, aerosol microphysics (nucleation, condensation/evaporation, coagulation, CCN activation), size-dependent scavenging/wet deposition, size-dependent dry deposition of aerosols, gravitational settling/sedimentation.
Environment EnvironnementCanada Canada
Air Quality Research BranchMeteorological Service of Canada
Model CharacteristicsModel Feature CMAQ AURAMSMet Driver MM5 or ETA GEM
Air Quality Research BranchMeteorological Service of Canada
Same-Day Evaluation of Real-Time Forecasts (1)
Obs O - MModel
• Based on AIRNOW data feed• Summer 2004 for O3 and PM2.5
Environment EnvironnementCanada Canada
Air Quality Research BranchMeteorological Service of Canada
Same-Day Evaluation of Real-Time Forecasts (2)
Environment EnvironnementCanada Canada
Air Quality Research BranchMeteorological Service of Canada
Summary and Next Steps
• AURAMS is an episodic, regional, size-resolved, chemically-characterized PM modelling system that includes a sectional PM CTM
• Operational, diagnostic, and real-time performance evaluations have all provided useful insights
• Older cases provide point of comparison with other models (e.g., ADOM, RADM) while newer cases provide richer PM and PM precursor data sets for multi-pollutant evaluations
• Additional cases (e.g., Eastern Supersite 2001/02 period, ICARTT/NEAQS-2K4 period), longer simulations, more fields (e.g., precip chemistry), more model intercomparisons are being pursued