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Cloud Aerosol Research in the Marine Atmosphere (CARMA)

Cloud Aerosol Research in the Marine Atmosphere (CARMA). A multi-year project to look primarily at the interaction of aerosols and clouds in the marine atmosphere. A concurrent, ancillary task has been to characterize, both chemically and physically, the aerosols in the MBL.

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Cloud Aerosol Research in the Marine Atmosphere (CARMA)

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  1. Cloud Aerosol Research in the Marine Atmosphere (CARMA) • A multi-year project to look primarily at the interaction of aerosols and clouds in the marine atmosphere. • A concurrent, ancillary task has been to characterize, both chemically and physically, the aerosols in the MBL

  2. Proposed CARMA-IV Goals • Hygroscopicity climatology for litoral region • Assess the relative importance of super-inversion mixing and below cloud aerosol on cloud optical depth • Assess the impact of precipitation scavenging on MBL aerosol concentration

  3. Potential New Goals • Assess the importance of EC particles as CCN • Evaluate the impact of chemistry on aerosol hygroscopicity during vertical transport in the MBL • Explore relationship between individual particle hygroscopicity and bulk scattering hygroscopicity

  4. Instruments for Proposed Goals

  5. Instruments for Potential Goals

  6. For light scattering dependence: For particle size dependence: DHGF’s (wet to dry diameter ratio) Hygroscopicity Parameters

  7. Hygroscopicity data for Climatology

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