Coalescence efficiency measurements for minimally charged cloud drops

Laboratory measurements were made of the collison cross section for water drops freely falling in air to evaluate coalescence efficiencies for cloud drops of 55-105 mum radius in a radius ratio range of 0.5-1.0. The charge on drops was minimized by control of the electric field at the location of dr...

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Veröffentlicht in:	Journal of the atmospheric sciences 2002-01, Vol.59 (2), p.233-243
Hauptverfasser:	BEARD, Kenneth V, DURKEE, Russell I, OCHS, Harry T
Format:	Artikel
Sprache:	eng
Schlagworte:	Cloud physics Clouds Coalescence Earth, ocean, space Efficiency Exact sciences and technology External geophysics Measurement Meteorology Water
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Zusammenfassung:	Laboratory measurements were made of the collison cross section for water drops freely falling in air to evaluate coalescence efficiencies for cloud drops of 55-105 mum radius in a radius ratio range of 0.5-1.0. The charge on drops was minimized by control of the electric field at the location of drop formation and was further reduced using bipolar ions.
ISSN:	0022-4928 1520-0469
DOI:	10.1175/1520-0469(2002)059<0233:CEMFMC>2.0.CO;2