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Gravity

Air resistance. Gravity. Curvature Effect. Solute Effect. Pure Water: High Vapor pressure Small rain drop. Salty Water: Low Vapor pressure Large rain drop. Table 7-1, p. 166. Bergeron Process (ice-crystal process) Ice grows at the expense of water drops. Accretion (riming)

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Gravity

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  1. Air resistance Gravity

  2. Curvature Effect

  3. Solute Effect Pure Water: High Vapor pressure Small rain drop Salty Water: Low Vapor pressure Large rain drop

  4. Table 7-1, p. 166

  5. Bergeron Process (ice-crystal process) Ice grows at the expense of water drops.

  6. Accretion (riming) Ice collecting suppercooled water drops Results in icy snow pellets called graupel

  7. Aggregation Ice collecting small ice particles to make a snow flake

  8. Virga

  9. Fall Streaks -- icy crystals or snow falling

  10. Dendrite snow crystal

  11. Fig. 7-11, p. 172

  12. Fig. 7-12, p. 173

  13. Rime: super cooled drop freezing on contact

  14. Freezing Rain: rain freezes on contact.

  15. Fig. 7-21, p. 180

  16. Days with Freezing rain Fig. 7-23, p. 182

  17. Fig. 5, p. 183

  18. Fig. 7-18, p. 179

  19. 5.5 inches

  20. Polarized light

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