DOI: 10.1002/2016GL069835
论文题名: Reconciling the observed and modeled Southern Hemisphere circulation response to volcanic eruptions
作者: McGraw M.C. ; Barnes E.A. ; Deser C.
刊名: Geophysical Research Letters
ISSN: 0094-8961
EISSN: 1944-8692
出版年: 2016
卷: 43, 期: 13 起始页码: 7259
结束页码: 7266
语种: 英语
英文关键词: ENSO
; model biases
; SAM
; volcano
Scopus关键词: Atmospheric pressure
; Climate change
; Climatology
; Nickel
; Volcanoes
; ENSO
; Internal climate variability
; Model bias
; Observational study
; Southern Annular Mode
; Southern hemisphere circulation
; Southern oscillation
; Tropospheric circulation
; Climate models
英文摘要: Confusion exists regarding the tropospheric circulation response to volcanic eruptions, with models and observations seeming to disagree on the sign of the response. The forced Southern Hemisphere circulation response to the eruptions of Pinatubo and El Chichón is shown to be a robust positive annular mode, using over 200 ensemble members from 38 climate models. It is demonstrated that the models and observations are not at odds, but rather, internal climate variability is large and can overwhelm the forced response. It is further argued that the state of the El Niño–Southern Oscillation can at least partially explain the sign of the observed anomalies and may account for the perceived discrepancy between model and observational studies. The eruptions of both El Chichón and Pinatubo occurred during El Niño events, and it is demonstrated that the Southern Annular Mode anomalies following volcanic eruptions are weaker during El Niño events compared to La Niña events. ©2016. American Geophysical Union. All Rights Reserved. URL: https://www.scopus.com/inward/record.uri?eid=2-s2.0-84978250310&doi=10.1002%2f2016GL069835&partnerID=40&md5=3279f1f8429e5efff6dd8fd7052446ff
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资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/9924
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 Science, Colorado State University, Fort Collins, CO, United States
Recommended Citation:
McGraw M.C.,Barnes E.A.,Deser C.. Reconciling the observed and modeled Southern Hemisphere circulation response to volcanic eruptions[J]. Geophysical Research Letters,2016-01-01,43(13).