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Issues to Resolve

Issues to Resolve. What version of Aura runs to use (Aura 3, 4) Doubling experiments Radionucleides?. Proposal ideas / themes. Use / impact of other meteorological fields GFDL (Liu) – (Future simulations, Long Range Transport, Adjoint?) UCI/Oslo (Prather) NCEP (GMAO)

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Issues to Resolve

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  1. Issues to Resolve • What version of Aura runs to use (Aura 3, 4) • Doubling experiments • Radionucleides?

  2. Proposal ideas / themes • Use / impact of other meteorological fields • GFDL (Liu) – (Future simulations, Long Range Transport, Adjoint?) • UCI/Oslo (Prather) • NCEP (GMAO) • Hindcast (Improve forecast?) • Aerosols? (not here) • SO2 (Weisenstein) • Duncan, Liu (air quality, Long-range transport • Other? (Logan? Prather?) • Testing/ Improving model • Use of satellite data (MLS, other). • Radionucleides (Considine, Liu) • Aerosols (nitrate, Biang;AQ, Duncan; cloud/ice activation, Nenes, Liu/Penner…). • AC and C No. 2 (convection, washout; Rodriguez, Considine, Liu, Neu? Nenes…). • Chemical mechanims? • WHAT MODELING CAPABILITIES SHOULD BE PROVIDED BY “CORE” INSTITUTION?

  3. GROUP ON WET DEPOSITION / CONVECTION • Wet deposition: Issues • Most schemes for liquid scavenging seem similar, except for Rosstyn • Treatment of ice scavenging varies a lot • What data to use? (Besides 210Pb) • Deposition data (NAPD) (Aqueous phase chemistry?) • HIRDLS HNO3 (ice removal?) • HNO3 gas (large variability). • TC4 outflow data • Possibility of developing microphysics-based schemes (need more variables archived). • Implicit dependence of current schemes on ∆t. • Convection issues: • New data bases for testing convection? • Test different met. fields with different schemes, same emissions, simple chemistry. • For a given met. field, perturb strength of convection and find impact. • “On line” vs. offline. • Other species tests (methyl iodide) • Other diagnostics

  4. WET DEPOSITION / CONVECTION + Others • Potential proposals • Test convection, wet deposion, new sources of 7Be, other tests of convection: (Considine, Liu) • Bring in GFDL met. fields, adjoint of GMI? Look at long-range transport (Liu). • New wet deposition schemes? (Neu, Prather). • Lightning in future climate (Pickering). • Wet deposition / microphysics (Nenes?). • Impact of stratospheric changes, QBO on tropospheric composition (Prather/Logan?) • “Core” activities • Automated grading system for results, fold in data (PCMDI) • Data archive? • Incorporating different met. fields, develop tests to guarantee incorporation. • Additional archived variables from GEOS (autoconversion rates).

  5. ACTION ITEMS • Regular update on development of embedded CTM.\ • Further coordination of proposals. • Understand differences between AURA3 and AURA4. • Finish doubling experiments. • Upcoming papers: • Logan (TES) • Lightning (Allen/Pickering) • Use of HIRDLS data?

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