Results 201 to 210 of about 333,506 (238)

Skillful prediction of multidecadal variations in volcanic forcing [PDF]

Geophysical Research Letters, 2017
AbstractStratospheric sulfate injections from explosive volcanic eruptions are a primary natural climate forcing. Improved statistical models can now capture and simulate dynamical relationships in temporal variations of binary data. Leveraging these new techniques, the presented analysis clearly indicates that the number of large eruptions in the most
Alexandre Tuel, Caspar Ammann
exaly   +4 more sources

A New Volcanic Stratospheric Sulfate Aerosol Forcing Emulator (EVA_H): Comparison With Interactive Stratospheric Aerosol Models [PDF]

Journal of Geophysical Research D: Atmospheres, 2020
Idealized models or emulators of volcanic aerosol forcing have been widely used to reconstruct the spatio‐temporal evolution of past volcanic forcing. However, existing models, including the most recently developed Easy Volcanic Aerosol (EVA, Toohey et ...
Anja Schmidt, Matthew Toohey, Thomas Aubry   +2 more
exaly   +4 more sources

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Impacts of initial conditions on volcanic forcing and responses

2023
Volcanic impacts on the environment and climate depend on the volcanic forcing. This is controlled by the eruption source parameters like eruption magnitude, composition, season, latitude and injection altitude. But how the volcanic forcing is affected by initial conditions, and what differences tropical and extratropical volcanic eruptions have is not
Zhuo, Z., Fuglestvedt, H., Toohey, M., Krüger, K.   +3 more
openaire   +2 more sources

Impact of global warming on the rise of volcanic plumes and implications for future volcanic aerosol forcing [PDF]

Journal of Geophysical Research D: Atmospheres, 2016
AbstractVolcanic eruptions have a significant impact on climate when they inject sulfur gases into the stratosphere. The dynamics of eruption plumes is also affected by climate itself, as atmospheric stratification impacts plumes' height. We use an integral plume model to assess changes in volcanic plume maximum rise heights as a consequence of global ...
Wim Degruyter, Valentina Radic, Costanza Bonadonna   +2 more
exaly   +4 more sources

Volcanic radiative forcing of climate: Past and future

2023
The 28th IUGG General Assembly (IUGG2023) (Berlin 2023)
Aubry, T., Schmidt, A., Chim, M.
openaire   +2 more sources

Effect of climate sensitivity on the Response to Volcanic Forcing

Journal of Geophysical Research: Atmospheres, 2005
The results from 16 coupled atmosphere/ocean general circulation model (AOGCM) simulations are used to reduce internally generated noise and to obtain an improved estimate of the underlying response of 20th century global mean temperature to volcanic forcing.
Wigley, T. M. L., Ammann, C. M., Santer, B. D., Raper, S. C. B.   +3 more
openaire   +5 more sources

Proxy evidence for an El Niño-like response to volcanic forcing

Nature, 2003
Past studies have suggested a statistical connection between explosive volcanic eruptions and subsequent El Niño climate events. This connection, however, has remained controversial. Here we present support for a response of the El Niño/Southern Oscillation (ENSO) phenomenon to forcing from explosive volcanism by using two different palaeoclimate ...
Caspar Ammann, Michael Mann
exaly   +3 more sources

No consistent ENSO response to volcanic forcing over the last millennium

Science, 2020
Not a big deal after all Do volcanic eruptions affect El Niño–Southern Oscillation (ENSO) variability? Models indicate that sulfate aerosols resulting from large eruptions can initiate an El Niño–like response in the tropical Pacific, but observations have not shown evidence of such behavior.
Sylvia G. Dee, Kim M. Cobb, Julien Emile-Geay, Toby R. Ault, R. Lawrence Edwards, Hai Cheng, Christopher D. Charles   +6 more
openaire   +2 more sources

Periodicity and driving forces of volcanism

Russian Geology and Geophysics, 2015
Abstract The volume and style of volcanism change periodically, with cycles of three main scales, which have different causes and effects. Short cycles of volcanic activity last from tens to thousands of years and are associated with periodic accumulation of magma in shallow chambers and its subsequent eruptions.
openaire   +1 more source

A monthly and latitudinally varying volcanic forcing dataset in simulations of 20th century climate [PDF]

Geophysical Research Letters, 2003
A new monthly volcanic forcing dataset is included in a coupled GCM for a more physically consistent treatment of the stratospheric sulfate aerosol history from explosive volcanism.
Caspar Ammann, Gerald Meehl, Charles Zender   +2 more
exaly   +2 more sources