Did the Toba volcanic eruption of 74 ka B.P. produce widespread glaciation

@article{Robock2009DidTT,
  title={Did the Toba volcanic eruption of 74 ka B.P. produce widespread glaciation},
  author={Alan Robock and Caspar Ammann and Luke D. Oman and Drew T. Shindell and Samuel Levis and Georgiy L. Stenchikov},
  journal={Journal of Geophysical Research},
  year={2009},
  volume={114}
}
[1] It has been suggested that the Toba volcanic eruption, approximately 74 ka B.P., was responsible for the extended cooling period and ice sheet advance immediately following it, but previous climate model simulations, using 100 times the amount of aerosols produced by the 1991 Mount Pinatubo eruption, have been unable to produce such a prolonged climate response. Here we conduct six additional climate model simulations with two different climate models, the National Center for Atmospheric… 

Figures from this paper

Global climate disruption and regional climate shelters after the Toba supereruption

A large ensemble of global climate model simulations are used to demonstrate that the climate response to Toba was likely to be pronounced in Europe, North America, and central Asia but muted in the Southern Hemisphere, with implications for understanding the range of environmental impacts from past and future supereruptions.

Environmental impact of the 73 ka Toba super-eruption in South Asia

Microphysical simulations of large volcanic eruptions: Pinatubo and Toba

Simulations of stratospheric clouds from eruptions ranging in size from the 1991 eruption of Mount Pinatubo to that of Toba 74,000 years ago have been completed using a 3D microphysical sectional

DID A VOLCANIC MEGA-ERUPTION CAUSE GLOBAL COOLING DURING THE LATE ORDOVICIAN?

Abstract The Late Ordovician Taconic orogeny was associated with volcanic eruptions along the subduction zones of the Iapetus Ocean. One of these eruptions, which led to the deposition of the Deicke

Evaluating the link between the sulfur-rich Laacher See volcanic eruption and the Younger Dryas climate anomaly

Abstract. The Younger Dryas is considered the archetypal millennial-scale climate change event, and identifying its cause is fundamental for thoroughly understanding climate systematics during

Reconciling the climate and ozone response to the 1257 CE Mount Samalas eruption

Simulations from HadGEM3-ES, a fully coupled Earth system model, with interactive atmospheric chemistry and a microphysical treatment of sulfate aerosol are used to assess the chemical and climate impacts from the injection of sulfur and halogen species into the stratosphere as a result of the Mt. Samalas eruption.
...

References

SHOWING 1-10 OF 56 REFERENCES

Climate-Volcanism Feedback and the Toba Eruption of ∼74,000 Years Ago

Abstract A general feedback between volcanism and climate at times of transition in the Quaternary climate record is suggested, exemplified by events accompanying the Toba eruption (∼74,000 yr ago),

An AOGCM simulation of the climate response to a volcanic super-eruption

Volcanic ‘super-eruptions’ have been suggested to have significantly influenced the Earth’s climate, perhaps causing glaciations and impacting on the human population. Climatic changes following a

Volcanic winter and accelerated glaciation following the Toba super-eruption

THE eruption of Toba in Sumatra 73,500 years ago was the largest known explosive volcanic event in the late Quaternary1. It could have lofted about 1015 g each of fine ash and sulphur gases to

Climatic response to high‐latitude volcanic eruptions

[1] Strong volcanic eruptions can inject large amounts of SO2 into the lower stratosphere, which over time, are converted into sulfate aerosols and have the potential to impact climate. Aerosols from

The role of microphysical and chemical processes in prolonging the climate forcing of the Toba Eruption

The mega-eruption of Toba, Sumatra, occurred around 73 Ka ago, during the onset of a glaciation of the Late Quaternary. This coincidence combined with the unprecedented amount of sulphur released by

Limited global change due to the largest known Quaternary eruption, Toba ≈74 kyr BP?

Simulations of preindustrial, present-day, and 2100 conditions in the NASA GISS composition and climate model G-PUCCINI

A model of atmospheric composition and climate has been developed at the NASA Goddard Institute for Space Studies (GISS) that includes composition seamlessly from the surface to the lower mesosphere.

The climatic impact of supervolcanic ash blankets

Supervolcanoes are large caldera systems that can expel vast quantities of ash, volcanic gases in a single eruption, far larger than any recorded in recent history. These super-eruptions have been

Regional climate responses to geoengineering with tropical and Arctic SO2 injections

[1] Anthropogenic stratospheric aerosol production, so as to reduce solar insolation and cool Earth, has been suggested as an emergency response to geoengineer the planet in response to global

A GCM Study of Volcanic Eruptions as a Cause of Increased Stratospheric Water Vapor

Abstract Recent general circulation model (GCM) experiments have shown that idealized climatic perturbations that increase the temperature of the tropical tropopause region can cause larger than
...