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VARIABILITY OF GIANT SEA-SALT PARTICLES DURING THE VOCALS CAMPAIN Jorgen B. Jensen NCAR/EOL/RAF

VARIABILITY OF GIANT SEA-SALT PARTICLES DURING THE VOCALS CAMPAIN Jorgen B. Jensen NCAR/EOL/RAF. Explain. Explain. GNI system. Köhler equation  Dry NaCl equiv. size.

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VARIABILITY OF GIANT SEA-SALT PARTICLES DURING THE VOCALS CAMPAIN Jorgen B. Jensen NCAR/EOL/RAF

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  1. VARIABILITY OF GIANT SEA-SALT PARTICLESDURING THE VOCALS CAMPAINJorgen B. JensenNCAR/EOL/RAF

  2. Explain

  3. Explain

  4. GNI system Köhler equation  Dry NaCl equiv. size

  5. GNI NaCleqivalent sizing:Combined sizing uncertainty* as a function of dry radius, rd rd=1 μm rd=2 μm rd=4 μm rd=8 μm rd=16 μmConc.* 7% 7% 7% 7% 8%Sizing** 8% 6% 6% 6% 6%* Due to slide exposure time, air speed, concentration enhancement factor, and ambient saturation ratio.** Due to focus, bead mis-sizing, spherical cap ratio, microscope temperature, surface tension and water activity.

  6. GNI NaCleqivalent sizing:

  7. Some splash impact effects:

  8. Some splash impact effects:Are there more small particles surrounding large particles?

  9. Some splash impact effects:Are there more small particles surrounding large particles?

  10. Some splash impact effects:Are there more small particles surrounding large particles?

  11. Some splash impact effects:Are there more small particles surrounding large particles?

  12. Sea salt mixing ratio as a function of (instantaneous) wind speed

  13. Sea salt mixing ratio as a function of altitude

  14. Wind speed increases (in general) towards the westSea-salt loading increases non-linearly with wind speedThe concentration of very large particles increases non-linearly with sea-salt loading=> There are many more of the largest giant sea-salt particles available in the western end of the VOCALS domain.=> This is a potentially very important aspect of the drizzle formation process. Without a proper representation of the nucleation effect of the giant aerosol particles, I think that we have very little chance of understanding and predicting the drizzle formation.

  15. Wind speed increases (in general) towards the westSea-salt loading increases non-linearly with wind speedThe concentration of very large particles increases non-linearly with sea-salt loading=> There are many more of the largest giant sea-salt particles available in the western end of the VOCALS domain.=> This is a potentially very important aspect of the drizzle formation process. Without a proper representation of the nucleation effect of the giant aerosol particles, I think that we have very little chance of understanding and predicting the drizzle formation.

  16. Wind speed increases (in general) towards the westSea-salt loading increases non-linearly with wind speedThe concentration of very large particles increases non-linearly with sea-salt loading=> There are many more of the largest giant sea-salt particles available in the western end of the VOCALS domain.=> This is a potentially very important aspect of the drizzle formation process. Without a proper representation of the nucleation effect of the giant aerosol particles, I think that we have very little chance of understanding and predicting the drizzle formation.

  17. Wind speed increases (in general) towards the westSea-salt loading increases non-linearly with wind speedThe concentration of very large particles increases non-linearly with sea-salt loading=> There are many more of the largest giant sea-salt particles available in the western end of the VOCALS domain.=> This is a potentially very important aspect of the drizzle formation process. Without a proper representation of the nucleation effect of the giant aerosol particles, I think that we have very little chance of understanding and predicting the drizzle formation.

  18. Wind speed increases (in general) towards the westSea-salt loading increases non-linearly with wind speedThe concentration of very large particles increases non-linearly with sea-salt loading=> There are many more of the largest giant sea-salt particles available in the western end of the VOCALS domain.=> This is a potentially very important aspect of the drizzle formation process. Without a proper representation of the nucleation effect of the giant aerosol particles, I think that we have very little chance of understanding and predicting the drizzle formation. The end

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