DOI: 10.1002/grl.50665
论文题名: Evolution of ice crystal regions on the microscale based on in situ observations
作者: Diao M. ; Zondlo M.A. ; Heymsfield A.J. ; Beaton S.P. ; Rogers D.C.
刊名: Geophysical Research Letters
ISSN: 0094-8815
EISSN: 1944-8546
出版年: 2013
卷: 40, 期: 13 起始页码: 3473
结束页码: 3478
语种: 英语
英文关键词: cirrus
; cloud life cycle
; cloud lifetime
; ice crystal
; ice supersaturation
; nucleation
Scopus关键词: Aircraft observations
; cirrus
; Cloud life cycle
; Ice crystals
; In-situ observations
; Microphysical property
; Radiative forcings
; Spatial relationships
; Aircraft
; Atmospheric radiation
; Clouds
; Nucleation
; Uncertainty analysis
; Ice
; airborne survey
; cirrus
; cloud radiative forcing
; Eulerian analysis
; ice crystal
; in situ measurement
; nucleation
; parameterization
英文摘要: Microphysical properties of cirrus clouds largely influence their atmospheric radiative forcing. However, uncertainties remain in simulating/parameterizing the evolution of ice crystals. These uncertainties require more analyses in the Lagrangian view, yet most in situ observations are in the Eulerian view. Here we demonstrate a new method to separate out five phases of ice crystal evolution, using the horizontal spatial relationships between ice supersaturated regions (ISSRs) and ice crystal regions (ICRs). Based on global in situ data sets, we show that the samples of clear-sky ISSRs, ice crystal formation/growth, and evaporation/sedimentation are ~20%, 10%, and 70% of the total ISSR + ICR samples, respectively. In addition, the variance of number-weighted mean diameter (Dc) becomes narrower during the evolution, while the distribution of ice crystal number density (Nc) becomes wider. The new method helps to understand the evolution of ICRs and ISSRs on the microscale by using in situ Eulerian observations. Key Points In-situ aircraft observations of cirrus ice crystal life cycle Cirrus ice crystals mainly in sublimation relative to growth, nucleation phases Simple method to convert aircraft observations to cloud life cycle ©2013. American Geophysical Union. All Rights Reserved. URL: https://www.scopus.com/inward/record.uri?eid=2-s2.0-84880783948&doi=10.1002%2fgrl.50665&partnerID=40&md5=15cd716ce2b6ffab5bf6b0cf47e91157
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资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/6079
Appears in Collections: 气候减缓与适应
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作者单位: Department of Civil and Environmental Engineering, Center for Mid-Infrared Technologies for Health and Environment, Princeton University, E209A, Engineering Quad, Olden St., Princeton, NJ 08544, United States
Recommended Citation:
Diao M.,Zondlo M.A.,Heymsfield A.J.,et al. Evolution of ice crystal regions on the microscale based on in situ observations[J]. Geophysical Research Letters,2013-01-01,40(13).