Climate response to large, high-latitude and low-latitude volcanic eruptions in the Community Climate System Model
Explosive volcanism is known to be a leading natural cause of climate change. The second half of the 13th century was likely the most volcanically perturbed half-century of the last 2000 years, although none of the major 13th century eruptions have been clearly attributed to specific volcanoes. This...
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American Geophysical Union
2009
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ftncar:oai:drupal-site.org:articles_15372 2023-09-05T13:17:43+02:00 Climate response to large, high-latitude and low-latitude volcanic eruptions in the Community Climate System Model Schneider, David (author) Ammann, Caspar (author) Otto-Bliesner, Bette (author) Kaufman, D. (author) 2009-08-01 application/pdf http://nldr.library.ucar.edu/repository/collections/OSGC-000-000-002-413 https://doi.org/10.1029/2008JD011222 en eng American Geophysical Union Journal of Geophysical Research-Atmospheres http://nldr.library.ucar.edu/repository/collections/OSGC-000-000-002-413 doi:10.1029/2008JD011222 ark:/85065/d7bg2q1z An edited version of this paper was published by AGU. Copyright2009 American Geophysical Union. volcanic eruptions climate change climate model Text article 2009 ftncar https://doi.org/10.1029/2008JD011222 2023-08-14T18:42:05Z Explosive volcanism is known to be a leading natural cause of climate change. The second half of the 13th century was likely the most volcanically perturbed half-century of the last 2000 years, although none of the major 13th century eruptions have been clearly attributed to specific volcanoes. This period was in general a time of transition from the relatively warm Medieval period to the colder Little Ice Age, but available proxy records are insufficient on their own to clearly assess whether this transition is associated with volcanism. This context motivates our investigation of the climate system sensitivity to high- and low-latitude volcanism using the fully coupled NCAR Community Climate System Model (CCSM3). We evaluate two sets of ensemble simulations, each containing four volcanic pulses, with the first set representing them as a sequence of tropical eruptions and the second representing eruptions occurring in the mid-high latitudes of both the Northern and Southern hemispheres. The short-term, direct radiative impacts of tropical and high-latitude eruptions include significant cooling over the continents in summer and cooling over regions of increased sea-ice concentration in Northern Hemisphere (NH) winter. A main dynamical impact of moderate tropical eruptions is a winter warming pattern across northern Eurasia. Furthermore, both ensembles show significant reductions in global precipitation, especially in the summer monsoon regions. The most important long-term impact is the cooling of the high-latitude NH produced by multiple tropical eruptions, suggesting that positive feedbacks associated with ice and snow cover could lead to long-term climate cooling in the Arctic. Article in Journal/Newspaper Arctic Climate change Sea ice OpenSky (NCAR/UCAR - National Center for Atmospheric Research/University Corporation for Atmospheric Research) Arctic Journal of Geophysical Research 114 D15 |
institution |
Open Polar |
collection |
OpenSky (NCAR/UCAR - National Center for Atmospheric Research/University Corporation for Atmospheric Research) |
op_collection_id |
ftncar |
language |
English |
topic |
volcanic eruptions climate change climate model |
spellingShingle |
volcanic eruptions climate change climate model Climate response to large, high-latitude and low-latitude volcanic eruptions in the Community Climate System Model |
topic_facet |
volcanic eruptions climate change climate model |
description |
Explosive volcanism is known to be a leading natural cause of climate change. The second half of the 13th century was likely the most volcanically perturbed half-century of the last 2000 years, although none of the major 13th century eruptions have been clearly attributed to specific volcanoes. This period was in general a time of transition from the relatively warm Medieval period to the colder Little Ice Age, but available proxy records are insufficient on their own to clearly assess whether this transition is associated with volcanism. This context motivates our investigation of the climate system sensitivity to high- and low-latitude volcanism using the fully coupled NCAR Community Climate System Model (CCSM3). We evaluate two sets of ensemble simulations, each containing four volcanic pulses, with the first set representing them as a sequence of tropical eruptions and the second representing eruptions occurring in the mid-high latitudes of both the Northern and Southern hemispheres. The short-term, direct radiative impacts of tropical and high-latitude eruptions include significant cooling over the continents in summer and cooling over regions of increased sea-ice concentration in Northern Hemisphere (NH) winter. A main dynamical impact of moderate tropical eruptions is a winter warming pattern across northern Eurasia. Furthermore, both ensembles show significant reductions in global precipitation, especially in the summer monsoon regions. The most important long-term impact is the cooling of the high-latitude NH produced by multiple tropical eruptions, suggesting that positive feedbacks associated with ice and snow cover could lead to long-term climate cooling in the Arctic. |
author2 |
Schneider, David (author) Ammann, Caspar (author) Otto-Bliesner, Bette (author) Kaufman, D. (author) |
format |
Article in Journal/Newspaper |
title |
Climate response to large, high-latitude and low-latitude volcanic eruptions in the Community Climate System Model |
title_short |
Climate response to large, high-latitude and low-latitude volcanic eruptions in the Community Climate System Model |
title_full |
Climate response to large, high-latitude and low-latitude volcanic eruptions in the Community Climate System Model |
title_fullStr |
Climate response to large, high-latitude and low-latitude volcanic eruptions in the Community Climate System Model |
title_full_unstemmed |
Climate response to large, high-latitude and low-latitude volcanic eruptions in the Community Climate System Model |
title_sort |
climate response to large, high-latitude and low-latitude volcanic eruptions in the community climate system model |
publisher |
American Geophysical Union |
publishDate |
2009 |
url |
http://nldr.library.ucar.edu/repository/collections/OSGC-000-000-002-413 https://doi.org/10.1029/2008JD011222 |
geographic |
Arctic |
geographic_facet |
Arctic |
genre |
Arctic Climate change Sea ice |
genre_facet |
Arctic Climate change Sea ice |
op_relation |
Journal of Geophysical Research-Atmospheres http://nldr.library.ucar.edu/repository/collections/OSGC-000-000-002-413 doi:10.1029/2008JD011222 ark:/85065/d7bg2q1z |
op_rights |
An edited version of this paper was published by AGU. Copyright2009 American Geophysical Union. |
op_doi |
https://doi.org/10.1029/2008JD011222 |
container_title |
Journal of Geophysical Research |
container_volume |
114 |
container_issue |
D15 |
_version_ |
1776198781952327680 |