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rea.ei.jrc.it/netshare/thunis/citydelta/

http://rea.ei.jrc.it/netshare/thunis/citydelta/. How to address urban AQ in integrated assessment?. Questions for integrated assessment: Impact assessment at sub-grid scale (PM, ozone) Balance Europe-wide vs. local emission controls NOT: Compliance with AQ limit values of AQ-Directives.

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rea.ei.jrc.it/netshare/thunis/citydelta/

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  1. http://rea.ei.jrc.it/netshare/thunis/citydelta/

  2. How to address urban AQ in integrated assessment? Questions for integrated assessment: • Impact assessment at sub-grid scale (PM, ozone) • Balance Europe-wide vs. local emission controls NOT: Compliance with AQ limit values of AQ-Directives

  3. Requirements for impact assessment Health : • PM mortality: • Long-term (cumulative) exposure, • No threshold, thus annual mean concentrations relevant • PM morbidity: • Daily time series, for entire year (not planned for RAINS) • O3 morbidity: • AOT60 was used in past, for summer half-year • Epidemiological studies are regressed against urban background! Vegetation: • O3 crops/forests: • AOT40 was used in past, level 2? How important for cities?

  4. Approach for IA • Take rural background as calculated by regional scale model as starting point • Identify systematic differences between rural and urban background concentrations • Identify factors responsible for these differences and quantify functions describing them • Use these functions in Integrated Assessment • for impact assessment, • for target setting, • for optimization (?)

  5. City-Delta Model comparison exercise for urban/regional dispersion models to identify: • systematic differences (deltas) between rural and urban background AQ, • how these deltas depend on urban emissions and other factors, • how these deltas vary across cities, • how these deltas vary across models. For PM (coarse and fine) and O3

  6. Organization • Steered by EMEP/CIAM, EUROTRAC 2, EMEP/MSC-W, JRC-EIS • Coordinated by JRC-EIS, Ispra (K. Cuvelier and P. Thunis) • Kick-off meeting (Ispra, February 2002) attended by 17 modelling teams • 8 cities (providing emissions, meteorology, monitoring data) • Results expected for end of 2002 • Interpretation planned for 2003 • Next meeting: June 24-25, 2002 at IIASA • Web site: http://rea.ei.jrc.it/netshare/thunis/citydelta/

  7. CAMx THOR CMAQ MOCAGE LOTOS EUROS CALGRID EURAD-FFA MUSCAT EURAD AURORA MARS OFIS TRANSCHIM STEM-FCM MCCM UAM CHIMERE 18 participating models

  8. City-Delta Domains • London • Paris • Marseille • Milano • Copenhagen • Berlin • Prague • Katowice

  9. Scenarios • 7 emission scenarios (CLE, -NOx1, -NOx2, -VOC,-NOx/VOC, -PM2.5, -PMcoarse) • 3 variants (regional vs. urban emission controls) • Long-term calculations (full year for PM, 6 months for O3) • Spatial resolution within urban domains: 5-10 km • Boundary conditions: provided by MSC-W or calculated by models

  10. City-Delta • More information:http://rea.ei.jrc.it/netshare/thunis/citydelta/ • Next meeting:June 24-25, 2002 at IIASA

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