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Secondary ice particle production during rime growth: The effect of drop size distribution and rimer velocity
Author(s) -
Mossop S. C.
Publication year - 1985
Publication title -
quarterly journal of the royal meteorological society
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.744
H-Index - 143
eISSN - 1477-870X
pISSN - 0035-9009
DOI - 10.1002/qj.49711147012
Subject(s) - hard rime , supercooling , drop (telecommunication) , growth rate , mechanics , production rate , clear ice , accretion (finance) , atmospheric sciences , range (aeronautics) , materials science , environmental science , meteorology , astrophysics , geology , physics , sea ice , arctic ice pack , mathematics , geometry , composite material , industrial engineering , telecommunications , antarctic sea ice , computer science , engineering
The rate of production of secondary ice particles during the growth of rime in a supercooled cloud at about ‐5°C is known to depend mainly upon the rate of accretion of large drops (diameter ⩾25 m̈m). New experiments have defined more clearly how ‘splinter’ production is affected by the rate of accretion of small drops (diameter ⩽12m̈m). The relationship between secondary ice production and rimer velocity is explored over a wider velocity range than before. At low velocities, splinter production persists to 0.55 ms −1 and probably lower. There is no evidence of a low‐velocity cut‐off as previously claimed. At high velocities, splinter production persists to velocities >5ms −1 . This may have important implications for secondary ice production in hail clouds.