DOI: 10.1002/jgrd.50587
论文题名: Two likely stratospheric volcanic eruptions in the 1450s C.E. found in a bipolar, subannually dated 800 year ice core record
作者: Cole-Dai J. ; Ferris D.G. ; Lanciki A.L. ; Savarino J. ; Thiemens M.H. ; McConnell J.R.
刊名: Journal of Geophysical Research Atmospheres
ISSN: 21698996
出版年: 2013
卷: 118, 期: 14 起始页码: 7459
结束页码: 7466
语种: 英语
英文关键词: climatic impact
; ice cores
; Kuwae
; volcanic eruptions
; volcanic records
Scopus关键词: Isotopes
; Sulfur
; Underwater acoustics
; Volcanoes
; Climatic impact
; Ice core
; Kuwae
; Volcanic eruptions
; volcanic records
; Ice
; atmospheric deposition
; chronology
; ice core
; isotopic composition
; Little Ice Age
; resolution
; stratosphere
; sulfate
; volcanic eruption
; volcanism
; Antarctica
; Pacific Ocean
; Pacific Ocean (Tropical)
; West Antarctica
英文摘要: An 800 year volcanic record is constructed from high-resolution chemical analysis of recently obtained West Antarctica and central Greenland ice cores. The high accuracy and precision of the ice core chronologies are a result of dating by annual ice layer counting. Nineteen bipolar volcanic signals in this record represent large, explosive eruptions in the tropics with probable climatic impact. One of the two bipolar volcanic signals dated at 1453 and 1459 is probably left by the eruption of the submarine volcano Kuwae in the tropical Pacific, one of the largest volcanic eruptions in the last millennium. The discovery of the two signals in the 1450s casts doubt on the eruption year of 1452 or 1453 for Kuwae based on previous ice core records. The volcanic sulfate deposition patterns in this bipolar record suggest that the later signal is likely from the Kuwae eruption in 1458, although a firm attribution is not possible. Sulfur isotope composition in the volcanic sulfate in the central Greenland cores indicates that both eruptions in the 1450s injected sulfur gases into the stratosphere with probable impact on the global climate. These results are in agreement with tree ring records showing two short cold episodes during that decade. The bipolar volcanic record supports the hypothesis that unusually active volcanism in the thirteenth century contributed to the onset of the Little Ice Age and another active period in the mid fifteenth century may have helped to sustain the Little Ice Age. Key Points Two large volcanic eruptions occurred in the 1450s Bipolar volcanic record from new Greenland and Antarctica ice cores Ice cores dated with independent annual layer counting ©2013. American Geophysical Union. All Rights Reserved. 资助项目: 0337933
; 0338363
; 0538553
; 0612422
; 0612461
; 0739780
; 0839093
Citation statistics:
资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/63552
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: Department of Chemistry and Biochemistry, South Dakota State University, Box 2202, Brookings, SD 57007, United States; Laboratoire de Glaciologie et Géophysique de l'Environnement, CNRS/Université Joseph Fourier-Grenoble 1, Saint-Martin-d'Hères, France; Department of Chemistry and Biochemistry, University of California, San Diego, San Diego CA, United States; Desert Research Institute, Nevada System of Higher Education, Reno NV, United States
Recommended Citation:
Cole-Dai J.,Ferris D.G.,Lanciki A.L.,et al. Two likely stratospheric volcanic eruptions in the 1450s C.E. found in a bipolar, subannually dated 800 year ice core record[J]. Journal of Geophysical Research Atmospheres,2013-01-01,118(14)