DOI: 10.1002/jgrd.50229
论文题名: Background conditions influence the decadal climate response to strong volcanic eruptions
作者: Zanchettin D. ; Bothe O. ; Graf H.F. ; Lorenz S.J. ; Luterbacher J. ; Timmreck C. ; Jungclaus J.H.
刊名: Journal of Geophysical Research Atmospheres
ISSN: 21698996
出版年: 2013
卷: 118, 期: 10 起始页码: 4090
结束页码: 4106
语种: 英语
英文关键词: Atlantic meridional overturning circulation
; Background climate conditions
; Decadal climate response
; Simulation ensemble
; Tambora
; Volcanic forcing
Scopus关键词: Computer simulation
; Earth (planet)
; Heat transfer
; Sea ice
; Volcanoes
; Atlantic meridional overturning circulations
; Climate condition
; Climate response
; Simulation ensemble
; Tambora
; Volcanic forcing
; Climate models
; climate conditions
; climate variation
; decadal variation
; overturn
; perturbation
; sea ice
; simulation
; volcanic eruption
; Arctic Ocean
; Atlantic Ocean
; Atlantic Ocean (North)
; Indonesia
; Lesser Sunda Islands
; Sumbawa
; Sunda Isles
; Tambora
; West Nusa Tenggara
英文摘要: Background conditions have the potential to influence the climate response to strong tropical volcanic eruptions. As a case study, we systematically assess the decadal climate response to the April 1815 Tambora eruption in a set of full-complexity Earth system model simulations. Three 10-member simulation ensembles are evaluated which describe the climate evolution of the early 19th century under (1) full-forcing conditions, (2) volcanic forcing-only conditions, and (3) volcanic forcing-only conditions excluding events preceding the Tambora eruption. The amplitude of the simulated radiative perturbation induced by the Tambora eruption depends only marginally on the background conditions. In contrast, simulated near-surface atmospheric and especially oceanic dynamics evolve significantly differently after the eruption under different background conditions. In particular, large inter-ensemble differences are found in the post-Tambora decadal evolution of oceanic heat transport and sea ice in the North Atlantic/Arctic Ocean. They reveal the existence of multiple response pathways that depend on background conditions. Background conditions are therefore not merely a source of additive noise for post-eruption decadal climate variability but actively influence the mechanisms involved in the post-eruption decadal evolution. Hence, background conditions should appropriately be accounted for in future ensemble-based numerical studies. Key Points The background state affects the decadal climate response to volcanic eruptionsBackground conditions actively influence the climate response mechanismsNorth Atlantic/Arctic oceanic heat transport and sea ice are key factor ©2013. American Geophysical Union. All Rights Reserved. Citation statistics:
资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/63750
Appears in Collections: 影响、适应和脆弱性 气候减缓与适应
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作者单位: Max Planck Institute for Meteorology, Bundesstr. 53, 20146 Hamburg, Germany; KlimaCampus, University of Hamburg, Hamburg, Germany; Now at Leibniz-Institut für Atmosphärenphysik, Universität Rostock, Schlossstraße 6, 18225 Kühlungsborn, Germany; Centre for Atmospheric Science, University of Cambridge, Downing Place, Cambridge CB2 3EN, United Kingdom; Justus Liebig University Giessen, Senckenbergstrasse 1, 35390 Giessen, Germany
Recommended Citation:
Zanchettin D.,Bothe O.,Graf H.F.,et al. Background conditions influence the decadal climate response to strong volcanic eruptions[J]. Journal of Geophysical Research Atmospheres,2013-01-01,118(10)