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HIGEAR

HIGEAR. Steve Howell, Yohei Shinozuka, and Tony Clarke University of Hawaii. Area, mm^ 2 /cm^3. TDMA. Don Collins and Jason Tomlinson Texas A&M. IMPEX C130 flight 4 (Seattle local 3). Loop 9. Aerosol is composed of a mixture of sulfate and possibly dust. Loop 10. Loop 11. Loop 9.

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HIGEAR

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  1. HIGEAR Steve Howell, Yohei Shinozuka, and Tony Clarke University of Hawaii

  2. Area, mm^2/cm^3

  3. TDMA Don Collins and Jason Tomlinson Texas A&M

  4. IMPEX C130 flight 4 (Seattle local 3)

  5. Loop 9 Aerosol is composed of a mixture of sulfate and possibly dust Loop 10 Loop 11

  6. Loop 9 Aitken mode increases in concentration as the C-130 enters in the plume Loop 11 Loop 10

  7. Organic Sampler Greg Roberts

  8. Aerosol layers transported as three dimensional rivers of aerosol. • Rapid changes in aerosol size distribution and chemistry impact CCN concentrations Aerosol transport and CCN clouds

  9. Long-range transport above 3500 m • detailed aerosol structure • dust / pollution ?? • Regional source within mixed layer probably new particle formation • Atmospheric mixing necessary for long-range transport to serve as CCN Aerosol transport and CCN clouds

  10. Dude, where’s my sulfate? Rick Peltier, PILS, Georgia Tech Ed Dunlea, AMS, Univ. of Colorado

  11. RF04 – 26 April 2006

  12. RF05 – PILS Sulfate

  13. RF05 – AMS SO4 View of flight track from the South

  14. RF05 – AMS Org View of flight track from the South

  15. Close up on Asian plumes Good correlation of SO4 with NOy again First flight with organics visible in Asian plumes

  16. Ion composition mainly sulfate and ammonium WSOC instrument problems during flight at ~1800 – no data available. Does not include unmeasured species (e.g. soot, OC) Aerosol density estimated (1.5) Most aerosol neutral charge balance (although a few deviations from 0)

  17. CO Teresa Campos NCAR

  18. O3, NOx, NOy Andy Weinheimer and David Knapp NCAR

  19. PANs Frank Flocke NCAR

  20. 4/21 flight track color coded by PAN

  21. 4/21 flight

  22. 4/21 flight: PAN, PPN and NOy

  23. 4/21 flight: PAN vs. PPN

  24. 4/26 flight: PAN and PPN

  25. CH2O Alan Fried, Jim Walega, Dirk Richter, and Petter Weibring NCAR

  26. Caltech CIMS David McCabe and John Crounse

  27. IMPEX Science Meeting PTRMS Thomas Karl, Sou Matsunaga, Kolby Jardine and Alex Guenther VOCs measured targeted IMPEX: BTX: benzene, toluene, C8, C9 Acetonitrile (biomass burning) OVOCs: Methanol, (Acetaldehyde), Acetone/Propanal, C4 (MEK+butanal), C5 and C6 carbonyls, Acetic Acid/Glycolaldehyde, hydroxyacetone

  28. Acetonitrile (biomass burning marker) and Benzene are not correlated in Asian plume. OVOCs slightly enhanced

  29. SRF3 and SRF 4 Acetonitrile ppbv

  30. srf4 srf3 SRF3 and SRF 4 Benzene ppbv

  31. Toluene/Benzene Ratio

  32. NCAR-CIMS Lee Mauldin and Rebecca Anderson

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