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JÜRGEN GRIESER,CHRISTIAN-D. SCHONWIESE
Explosive volcanism is known to have a large impact on climate. Thus, in order to understand past climate variability, volcanic forcing has to be considered. For the most recent explosive volcanic eruptions instrumental data of stratospheric aerosol o...
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CHRISTIAN D. SCHONWIESE,DIETER BAYER
The observed global, hemispheric, and meridional (zonal means) temperature fluctuations near surface covering the period 1851-1991 or 1861-1991, respectively, are reproduced by 'multiforced' regression models which take into account volcanic, solar, E...
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ALEXANDER CRESS,CHRISTIAN D. SCHONWIESE
In order to investigate the volcanic forcing of air temperature on a global scale five different volcanic activity parameter time series are used, two of them representing new modifications of earlier assessments. These parameter time series are compa...
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UDO SCHNEIDER,CHRISTIAN D. SCHONWIESE
The interannual variations of the El Niño/Southern Oscillation phenomenon (ENSO) and the North Atlantic Oscillation (NAO) are statistically analysed in the time and frequency domain using time series of the following monthly indices: Two Pacific sea s...
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CHRISTIAN D. SCHONWIESE
The ejecta ofvolcanism, including gas-to-particle conversions, form atmospheric aerosol layers which influence the radiation processes and in consequence the climate. Thereby, the major explosive eruptions are of predominant interest. They cause strat...
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