DOI: 10.1002/2016JD025082
论文题名: Aerosol effects on the anvil characteristics of mesoscale convective systems
作者: Saleeby S.M. ; van den Heever S.C. ; Marinescu P.J. ; Kreidenweis S.M. ; DeMott P.J.
刊名: Journal of Geophysical Research: Atmospheres
ISSN: 2169897X
出版年: 2016
卷: 121, 期: 18 起始页码: 10880
结束页码: 10901
语种: 英语
英文关键词: cirrus anvils
; cloud modeling
; MC3E
; mesoscale convective systems
; microphysics
Scopus关键词: aerosol
; atmospheric convection
; cirrus
; cloud cover
; cloud microphysics
; cloud water
; concentration (composition)
; condensate
; ice crystal
; mesoscale meteorology
; mixing ratio
; vertical distribution
英文摘要: Simulations of two mesoscale convective systems (MCSs) that occurred during the Midlatitude Continental Convective Clouds Experiment were performed to examine the impact of aerosol number concentration on the vertical distributions of liquid and ice condensate and the macrophysical, microphysical, and radiative properties of the cirrus-anvil cloud shield. Analyses indicate that for an increase in aerosol concentration from a clean continental to a highly polluted state, there was an increase in the rime collection rate of cloud water, which led to less lofted cloud water. Aerosol-induced trends in the cloud mixing ratio profiles were, however, nonmonotonic in the mixed phase region, such that a moderate increase in aerosol concentration produced the greatest reduction in cloud water. Generally, less lofted cloud water led to less anvil ice mixing ratio but more numerous, small ice crystals within the anvil. In spite of reduced anvil ice mixing ratio, the anvil clouds exhibited greater areal coverage, increased albedo, reduced cloud top cooling, and reduced net radiative flux, which led to an aerosol-induced warming (reduced cooling) effect in these squall lines. ©2016. American Geophysical Union. All Rights Reserved. 资助项目: DE-SC0010569
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资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/62845
Appears in Collections: 影响、适应和脆弱性 气候减缓与适应
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作者单位: Department of Atmospheric Science, Colorado State University, Fort Collins, CO, United States
Recommended Citation:
Saleeby S.M.,van den Heever S.C.,Marinescu P.J.,et al. Aerosol effects on the anvil characteristics of mesoscale convective systems[J]. Journal of Geophysical Research: Atmospheres,2016-01-01,121(18)