DOI: 10.1002/2016GL067830
论文题名: Observational evidence for aerosol invigoration in shallow cumulus downstream of Mount Kilauea
作者: Mace G.G. ; Abernathy A.C.
刊名: Geophysical Research Letters
ISSN: 0094-9187
EISSN: 1944-8918
出版年: 2016
卷: 43, 期: 6 起始页码: 2981
结束页码: 2988
语种: 英语
英文关键词: aerosol
; aerosol invigoration
; CloudSat
; marine boundary layer
; MODIS
Scopus关键词: Aerosols
; Atmospheric aerosols
; Boundary layers
; Clouds
; Reflection
; Sulfur dioxide
; Wind
; Aerosol indirect effect
; Aerosol invigoration
; Aerosol optical depths
; CloudSat
; Marine boundary layers
; MODIS
; Natural laboratories
; Shallow cumulus clouds
; Marine radar
; aerosol
; boundary layer
; CloudSat
; cumulus
; MODIS
; observational method
; optical depth
; radar
; reflectivity
; sulfur dioxide
; volcanic eruption
; wind velocity
; Hawaii [(ISL) Hawaiian Islands]
; Hawaii [United States]
; Hawaiian Islands
; Kilauea
英文摘要: Knowledge of how marine boundary layer (MBL) shallow cumulus clouds respond to changes in aerosol is central to understanding how MBL clouds modulate the climate system. Mount Kilauea on the island of Hawaii began erupting in 2008 injecting substantial SO2 into the marine boundary layer creating a unique natural laboratory. Examining data from approximately 600 passes of the A-Train downstream of Mount Kilauea over a 3 year period and separating data into aerosol optical depth quartiles, we find an unambiguous increase in marine boundary cloud top height and an increase in surface wind speed as aerosol increases while the radar reflectivity does not change substantially. We conclude that increased aerosols may have caused invigoration of the MBL clouds. Additionally, we find that increases in sub 1 km cloud fraction combined with increasing aerosol explain the increased visible reflectance suggesting that evidence for the so-called first aerosol indirect effect should be reexamined. ©2016. American Geophysical Union. All Rights Reserved. URL: https://www.scopus.com/inward/record.uri?eid=2-s2.0-84979469566&doi=10.1002%2f2016GL067830&partnerID=40&md5=eedc045d2ae6ebdeb7e21121f3fe8ff0
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资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/10150
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: Department of Atmospheric Sciences, University of Utah, Salt Lake City, UT, United States
Recommended Citation:
Mace G.G.,Abernathy A.C.. Observational evidence for aerosol invigoration in shallow cumulus downstream of Mount Kilauea[J]. Geophysical Research Letters,2016-01-01,43(6).