DOI: 10.1002/2013GL059113
论文题名: Observed linkages between the northern annular mode/North Atlantic Oscillation, cloud incidence, and cloud radiative forcing
作者: Li Y. ; Thompson D.W.J. ; Huang Y. ; Zhang M.
刊名: Geophysical Research Letters
ISSN: 0094-10329
EISSN: 1944-10060
出版年: 2014
卷: 41, 期: 5 起始页码: 1681
结束页码: 1688
语种: 英语
英文关键词: cloud
; cloud radiative forcing
; CloudSat/CALIPSO
; North Atlantic Oscillation
; northern annular mode
Scopus关键词: Atmospheric pressure
; Clouds
; Troposphere
; Cloud radiative forcing
; CloudSat
; Horizontal distribution
; North Atlantic Ocean
; North Atlantic oscillations
; Northern annular mode
; Northern Hemispheres
; Temperature anomaly
; Atmospheric radiation
; CALIPSO
; cloud cover
; CloudSat
; data set
; marine atmosphere
; North Atlantic Oscillation
; Northern Hemisphere
; radiative forcing
; temperature anomaly
; troposphere
; Atlantic Ocean
; Atlantic Ocean (North)
; Middle East
英文摘要: The signature of the northern annular mode/North Atlantic Oscillation (NAM/NAO) in the vertical and horizontal distribution of tropospheric cloudiness is investigated in CloudSat and CALIPSO data from June 2006 to April 2011. During the Northern Hemisphere winter, the positive polarity of the NAM/NAO is marked by increases in zonally averaged cloud incidence north of ~60°N, decreases between ~25 and 50°N, and increases in the subtropics. The tripolar-like anomalies in cloud incidence associated with the NAM/NAO are largest over the North Atlantic Ocean basin/Middle East and are physically consistent with the NAM/NAO-related anomalies in vertical motion. Importantly, the NAM/NAO-related anomalies in tropospheric cloud incidence lead to significant top of atmosphere cloud radiative forcing anomalies that are comparable in amplitude to those associated with the NAM/NAO-related temperature anomalies. The results provide observational evidence that the most prominent pattern of Northern Hemisphere climate variability is significantly linked to variations in cloud radiative forcing. Implications for two-way feedback between extratropical dynamics and cloud radiative forcing are discussed. Key Points NAM/NAO is marked by a meridional dipole in upper tropospheric clouds NAM/NAO-related cloud anomalies lead to marked cloud radiative forcing (CRF) anomalies The CRF anomalies act to shorten the timescale of the NAM/NAO-related temperature anomalies ©2014. American Geophysical Union. All Rights Reserved. URL: https://www.scopus.com/inward/record.uri?eid=2-s2.0-84895078879&doi=10.1002%2f2013GL059113&partnerID=40&md5=e29cb50624503a13ab32e26fd741b7ee
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资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/7593
Appears in Collections: 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:
Li Y.,Thompson D.W.J.,Huang Y.,et al. Observed linkages between the northern annular mode/North Atlantic Oscillation, cloud incidence, and cloud radiative forcing[J]. Geophysical Research Letters,2014-01-01,41(5).