The evolution of three-peak raindrop size distribution in one- dimensional shaft models. Part I: single-pulse rain

R. List, G. M. McFarquhar

Research output: Contribution to journalArticle

Abstract

Pulsed input of raindrop packages at the top of one-dimensional shafts, followed by coalescence and breakup during the fall produces, when integrated over time of the whole rainfall, three-peak drop-size distributions (3PDs) at all levels throughout the shaft. The 3PDs are different from the three-peak equilibrium distributions (PEDs) that develop with steady sources of rain. However, for long pulse lengths, the 3PD becomes closer to the 3PED; for short pulse lengths, the large-drop peak is not very prominent for the input of Marshall-Palmer distributions. The diameters corresponding to the maximum concentrations are approxmately the same as those of the 3PED. -from Authors

Original languageEnglish (US)
Pages (from-to)2996-3006
Number of pages11
JournalJournal of the Atmospheric Sciences
Volume47
Issue number24
DOIs
StatePublished - Jan 1 1990

ASJC Scopus subject areas

  • Atmospheric Science

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