Theoretical and Observational Study of Snow-Size Spectra and Snowflake Aggregation Efficiencies

Mean snowflake collection efficiencies can be estimated by studying the height evolution of snow-size spectra in natural precipitation. This was done by using coordinated aircraft and Doppler radar measurements of snow-size spectra and analytical and numerical techniques to model the stochastic coll...

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Bibliographic Details
Published in:Journal of the atmospheric sciences 1978-05, Vol.35 (5), p.882-889
Main Author: Passarelli, Richard E.
Format: Article
Language:English
Online Access:Get full text
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Summary:Mean snowflake collection efficiencies can be estimated by studying the height evolution of snow-size spectra in natural precipitation. This was done by using coordinated aircraft and Doppler radar measurements of snow-size spectra and analytical and numerical techniques to model the stochastic collection process. For aggregating stellar and dendritic crystals in the temperature range -15 to -12 degrees C, the estimated mean collection efficiency was 1.4 plus or minus 0.6.
ISSN:0022-4928
1520-0469
DOI:10.1175/1520-0469(1978)035<0882:taosos>2.0.co;2