The evolution of raindrop spectra: comparisons between modeled and observed spectra along a mountain slope in Switzerland

Z. Levin, G. Feingold, S. Tzivion, A. Waldvogel

Research output: Contribution to journalArticlepeer-review

Abstract

A comparison is made between the evolution of raindrop spectra as measured at stations in the Swiss Alps separated by vertical distances of the order of 600 m, with that modeled in an axisymmetrical model including detailed microphysics. Results show that under steady rain, weak advective conditions, and rain rates greater than 2 mm h-1, the model satisfactorily reproduces the features of the observed drop spectrum. Results deteriorate for low rain rates (of the order of 1 mm h-1) since drop collisions are too few to modify the spectrum significantly. The general agreement between modeled and observed spectra suggests that further considerations of this kind are justified. -Authors

Original languageEnglish
Pages (from-to)893-900
Number of pages8
JournalJournal of Applied Meteorology
Volume30
Issue number6
DOIs
StatePublished - 1991

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