Sea-salt aerosol in Hawaii and the Influence of Large Organized Structures (LOS) or Rolls on Fluxes and Visibility,  ONR,  2006- 2009.(A. Clarke,  V. Kapustin).

Airborne Measurments in Support of Pacific Atmospheric Sulfur Experiment (PASE): Process Affecting Physiochyemistry and Evolution of   Aerosol Size Distributions in the Tropics, NSF, 2006-2009, (A. Clarke,    V. Kapustin, S. Howell).

Aircraft study on DC-8, Airborne study of Arctic aerosol and chemistry as part of POLARCAT in the IPY in 2008. NASA - ARCTAS, 2008 - 2010 (A. Clarke,  S. Howell, V.Kapustin).

Aircraft Study on NCAR C-130, Airborne study of role of aerosol and its links to ocean chemistry and influence on cloud formation in pockets of open cells (POC) off the coast of Chile in 2008-2009. NSF VOCALS, 2008 2011 (A. Clarke,  S. Howell, V. Kapustin).