Air Resources BoardCalifornia Environmental Protection Agency
OZONE SIP OZONE SIP MODELING and MODELING and
DATA ANALYSISDATA ANALYSISPolicy Committee Meeting
John DaMassaSaffet TanrikuluAjith KaduwelaMarch 13, 2003
O3 SIP Modeling and Data AnalysisO3 SIP Modeling and Data Analysis
Presentation overview• Data Analysis• Emission Inventory• Modeling
O3 SIP Modeling and Data Analysis O3 SIP Modeling and Data Analysis Cont.Cont.
Team approach• Coordination among ARB and districts
– Meetings and conference calls
– Emissions inventory coordination group
• Modeling effort by districts• CCOS contractors and Technical Committee
CCOS Data AnalysisCCOS Data Analysis
CCOS database• Meteorological measurements
– Winds, temperature, humidity and solar radiation
• Air quality measurements– Ozone, NO, NO2, HC, and carbonyl
• Surface, remote sensing and aircraft measurements
CCOS Data Analysis Cont.CCOS Data Analysis Cont.
Data analysis• Various data analysis methods are used• QA/QC is performed• Web site to display data