The nuclei of natural cloud formation part II: The supersaturation in natural clouds and the variation of cloud droplet concentration
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- Twomey, S. Geofisica Pura e Applicata (1959) 43: 243. doi:10.1007/BF01993560
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Calculations are performed to determine the time variation of supersaturation during cloud formation. It is shown that a simple expression can be used to obtain the maximum supersaturation (and hence the number of nuclei activated) as a function of updraught velocity and nucleus spectra insert omitted portion of copy reported in Part 1 and it isshown that they lead to cloud droplet concentrations which agree with those actually observed.