DOI: 10.1002/2015GL066544
论文题名: Stratocumulus to cumulus transition in the presence of elevated smoke layers
作者: Yamaguchi T. ; Feingold G. ; Kazil J. ; McComiskey A.
刊名: Geophysical Research Letters
ISSN: 0094-8372
EISSN: 1944-8103
出版年: 2015
卷: 42, 期: 23 起始页码: 10478
结束页码: 10485
语种: 英语
英文关键词: aerosol-cloud-radiation interactions
; cloud physics
; entrainment
; light absorbing aerosol
; stratocumulus to cumulus transition
Scopus关键词: Aerosols
; Air entrainment
; Boundary layers
; Clouds
; Large eddy simulation
; Precipitation (meteorology)
; Smoke
; Aerosol clouds
; Climate forcings
; Cloud fields
; Cloud physics
; Cumulus cloud
; Light absorbing aerosols
; Stratocumulus to cumulus transition
; Water vapor contents
; Smoke abatement
; aerosol
; climate forcing
; cloud microphysics
; cloud radiative forcing
; entrainment
; smoke
; stratocumulus
英文摘要: The transition from stratocumulus to cumulus clouds in the presence of elevated light-absorbing smoke layers is investigated with idealized large-eddy simulations. A smoke layer is placed 1 km above stratocumulus top and evolves with the cloud fields over the course of a 3 day simulation. The simulations presented vary the smoke-generated heating and the moisture content of the smoke layer. A control case without smoke is simulated for comparison. On day 2 of the transition, when still above cloud, smoke generates a more broken cloud field than the control case, depending weakly on the strength of the aerosol heating but strongly on the water vapor content in the smoke layer. Following nighttime recovery and contact with the stratocumulus, smoke hinders the transition by strengthening the inversion, limiting boundary layer deepening and reducing precipitation-related breakup. This modulation delays the transition, which may extend the stratocumulus deck westward, with concomitant implications for climate forcing. © 2015. American Geophysical Union. All Rights Reserved. URL: https://www.scopus.com/inward/record.uri?eid=2-s2.0-84953638216&doi=10.1002%2f2015GL066544&partnerID=40&md5=4c08cef4a08cb41916eee3747ab2be24
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资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/7988
Appears in Collections: 科学计划与规划 气候变化与战略
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作者单位: Cooperative Institute for Research in Environmental Sciences, University of Colorado Boulder, Boulder, CO, United States
Recommended Citation:
Yamaguchi T.,Feingold G.,Kazil J.,et al. Stratocumulus to cumulus transition in the presence of elevated smoke layers[J]. Geophysical Research Letters,2015-01-01,42(23).