DOI: 10.1002/grl.50539
论文题名: Contrail ice particles in aircraft wakes and their climatic importance
作者: Schumann U. ; Jeßberger P. ; Voigt C.
刊名: Geophysical Research Letters
ISSN: 0094-8966
EISSN: 1944-8697
出版年: 2013
卷: 40, 期: 11 起始页码: 2867
结束页码: 2872
语种: 英语
英文关键词: aerosol
; aircraft
; cirrus
; contrail
; soot
; wake
Scopus关键词: Aircraft wakes
; cirrus
; contrail
; Different sizes
; Gas concentration
; Ice concentration
; Measurements of
; Radiative forcings
; Aerosols
; Aircraft
; Atmospheric radiation
; Clouds
; Soot
; Sulfur dioxide
; Wakes
; Ice
; aircraft
; cirrus
; contrail
; radiative forcing
; soot
; trace gas
; volcanic cloud
; wake
英文摘要: Measurements of gaseous (NO, NOy, SO2, HONO) and ice particle concentrations in young contrails in primary and secondary wakes of aircraft of different sizes (B737, A319, A340, A380) are used to investigate ice particle formation behind aircraft. The gas concentrations are largest in the primary wake and decrease with increasing altitude in the secondary wake, as expected for passive trace gases and aircraft-dependent dilution. In contrast, the measured ice particle concentrations were found larger in the secondary wake than in the primary wake. The contrails contain more ice particles than expected for previous black carbon (soot) estimates. The ice concentrations may result from soot-induced ice nucleation for a soot number emission index of 1015 kg-1. For a doubled ice particle concentration in young contrails, a contrail cirrus model computes about 60% increases of global radiative forcing by contrail cirrus because of simultaneous increases in optical depth, age, and cover. © 2013 American Geophysical Union. All Rights Reserved. URL: https://www.scopus.com/inward/record.uri?eid=2-s2.0-84879979967&doi=10.1002%2fgrl.50539&partnerID=40&md5=cf47aa8490a69f38321632487cba96b0
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资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/6230
Appears in Collections: 气候减缓与适应
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作者单位: Deutsches Zentrum für Luft- und Raumfahrt, Institut für Physik der Atmosphäre, Postfach 1116, D-82234 Oberpfaffenhofen, Germany
Recommended Citation:
Schumann U.,Jeßberger P.,Voigt C.. Contrail ice particles in aircraft wakes and their climatic importance[J]. Geophysical Research Letters,2013-01-01,40(11).