State/Federal Technical Work Collaborative Group Conference call Regional Technical Operations Work Group Modeling Year representativeness analysis project State/Federal Technical Work Collaborative Group Conference call “small group" May 14, 2018 Tom Moore

Modeling Year representativeness analysis Kickoff Project – foundational work Contractor support with in-kind WRAP member agencies’ effort Purpose: determine inter-annual variability of meteorology, emissions, and air quality observations in the western U.S. to assess representativeness for regional modeling and air quality planning Examine available meteorology and air quality observations from monitoring networks in the western and central U.S. (i.e., WRAP and selected CENSARA states), focused on 2014-15-16, including: Meteorology Surface temp., Wind speed, Precipitation, Synoptic climatology variation and typing Emissions trends and important changes/variation in source categories Air Quality Ozone, PM2.5 total mass and species and PM10 total mass, Wet deposition of nitrogen (NH4+, NO3-)

Representativeness Analysis: Project Tracking Sheet Parameters Status Air Quality   IMPROVE RH Components Light extinction summaries Made additional improvements to prototype interactive graphics tool Peak urban ozone and PM concentrations Annual O3 and PM design value summary statistic by county Produced maps of annual NAAQS summary statistics O3 and PM means and percentiles: rural Daily max 8-hr O3, PM2.5, PM10 Downloaded daily max 8-hr O3 and seasonal mean PM component concentrations from EPA CASTNET webpage Deposition Seasonal total deposition by geographic sub-region from CASTNET/NTN Added annual wet deposition maps and trends to OneNote; still need dry deposition maps Exceptional AQ and climate events Identify any exceptional event flags in AQ data; review NOAA annual climate event summaries Rec’d responses from: J. Spenillo, EPA Reg. X; added NOAA annual climate anomaly summaries to OneNote Meteorology Ozone conducive conditions: EPA method EPA O3 Adj. Factors Have annual maps and regional time series for 2000-2016; entered into OneNote Upper air Wx Patterns Seasonal anomaly maps: 500mb height, T  2014-2016 Quarterly means and anomalies for 500mb height, 1000 mb T, SLP Sfc Wx Patterns Seasonal anomaly maps: T, WS  2014-2016 Quarterly means and anomalies of SLP; added ENSO timeseries to OneNote Precipitation PRISM interpolated precip maps 2014-2016 Annual and monthly total precip and % of avg; Drought Drought indices U.S. Drought Monitor infographics now in OneNote Emissions Fires Quarterly avg PM2.5 from FINN FINN fire emissions 2012-2017 downloaded; 2014-2016 quarterly maps completed; Anthropogenic Emissions NEI totals by state for selected SIC rollups Rec’d list of SCC groups used by WA Ecology from F. Herron-Thorpe; On-Highway NOx and PM emissions by sub-region; IWDW 2008 and 2011 emissions by source sector Other Field Studies FRAPPE, CABOTS, LVOS/FAST-LVOS

project schedule and deliverables WRAP-up Schedule 4/30: Collect comments in OneNote 5/1 – 5/18: Ramboll develops synthesis of results afternoon of 5/22: RTOWG call to discuss draft synthesis results, content and organization of draft report 5/30: Draft report (with description of data collected/analyzed, data synthesis, results and recommendations) ~6/5: Handoff IMPROVE graphing tool to CIRA 6/10: Comments on draft report Week of 6/14: Final report 5 project calls since early Feb. Transfer data and display tools to Technical Support System

Thanks.