Terminal velocity adjustments for plate-like crystals and graupel

K. V. Beard, A. J. Heymsfield

Research output: Contribution to journalArticlepeer-review

7 Scopus citations

Abstract

Velocity adjustments are evaluated for altitude changes using Reynolds number-Davies number correlations of the form Re = aXb which have been obtained from empirical fall velocities of ice particles. In general, the altitude adjustment was found to vary with both pressure and temperature, except for a temperature-independent range near b ~ 0.7. A quantitative evaluation of b, using the drag on a sphere, shows that altitude adjustments for precipitation particles are less sensitive to changes in termperature than pressure, and that the net adjustment is reduced by compensation between the two effects. -from Authors

Original languageEnglish
Pages (from-to)3515-3518
Number of pages4
JournalJournal of the Atmospheric Sciences
Volume45
Issue number22
DOIs
StatePublished - 1988

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