Journal ArticleDOI
Greenland ice sheet evidence of post-glacial volcanism and its climatic impact
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This paper showed that clustered volcanic eruptions have a considerable cooling effect on climate, which further complicates climatic predictions, and used a temperature index to measure the cooling effect of volcanic activity.Abstract:
Acidity profiles along well dated Greenland ice cores reveal large volcanic eruptions in the Northern Hemisphere during the past 10,000 yr. Comparison with a temperature index shows that clustered eruptions have a considerable cooling effect on climate, which further complicates climatic predictions.read more
Citations
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Origin and consequences of cyclic ice rafting in the Northeast Atlantic Ocean during the past 130,000 years
TL;DR: In this paper, the influence of Earth's orbital parameters on major ice rafting was examined using deep-sea sediment cores recovered from the Northeast Atlantic Ocean in order to elucidate the influence.
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Causes of Climate Change Over the Past 1000 Years
TL;DR: A 21st-century global warming projection far exceeds the natural variability of the past 1000 years and is greater than the best estimate of global temperature change for the last interglacial.
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The volcanic explosivity index (VEI) an estimate of explosive magnitude for historical volcanism
TL;DR: A composite estimate of the magnitude of past explosive eruptions, referred to as the Volcanic Explosivity Index (VEI), is proposed as a semiquantitative compromise between poor data and the need in various disciplines to evaluate the record of past volcanism as mentioned in this paper.
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Stratospheric aerosol optical depths, 1850–1990
TL;DR: A global stratospheric aerosol database employed for climate simulations is described in this article, where the authors estimate the optical depths from optical extinction data, whose quality increases with time over that period.
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Influence of volcanic eruptions on Northern Hemisphere summer temperature over the past 600 years
TL;DR: The most severe short-term Northern Hemisphere cooling event of the past 600 years occurred in 1601, suggesting that either the effect on climate of the eruption of Huaynaputina, Peru, in 1600 has previously been greatly underestimated, or another, as yet unidentified, eruption occurred at the same time as discussed by the authors.
References
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Journal ArticleDOI
Volcanic dust in the atmosphere; with a chronology and assessment of its meteorological significance
TL;DR: In this paper, the authors examine aspects of importance, or possible importance, to meteorology, such as the dust veils created in the atmosphere, particle sizes and distribution, heights, fall speeds and atmospheric residence times.
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Oxygen Isotope Profiles through the Antarctic and Greenland Ice Sheets
TL;DR: The Camp Century, Greenland, deep ice core reveals seasonal variations in the isotopic composition of the ice back to 8,300 years BP as discussed by the authors. But the complexity of the glaciological regime at Byrd Station precludes a rational choice of a time scale.
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Paleoclimatic Inferences from Long Tree-Ring Records: Intersite comparison shows climatic anomalies that may be linked to features of the general circulation.
TL;DR: Tree-ring data contribute to a better understanding of the nature of past climatic variations, and study of the variation of ring-width statistics through time promises to be very fruitful.
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Volcanic explosions and climatic change: A theoretical assessment
TL;DR: In this article, a theoretical assessment of the influence of volcanic activity on the climate is presented, and the dependence of various quantities of interest is plotted as a function of the change in the optical depth of the stratosphere at a reference wavelength.
Journal ArticleDOI
Dating of Greenland ice cores by flow models, isotopes, volcanic debris, and continental dust
Claus U. Hammer,H. B. Clausen,Willi Dansgaard,Niels S. Gundestrup,Sigfus J Johnsen,Niels Reeh +5 more
TL;DR: The available methods for dating of ice cores are based on radioactive decay, ice-flow calculations, or stratigraphic observations as discussed by the authors, and special emphasis is given to stratigraphy methods.