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Significant radiative impact of volcanic aerosol in the lowermost stratosphere.

Andersson, Sandra LU ; Martinsson, Bengt LU ; Vernier, Jean-Paul; Friberg, Johan LU ; Brenninkmeijer, Carl A M; Hermann, Markus; van Velthoven, Peter F J and Zahn, Andreas (2015) In Nature Communications 6.
Abstract
Despite their potential to slow global warming, until recently, the radiative forcing associated with volcanic aerosols in the lowermost stratosphere (LMS) had not been considered. Here we study volcanic aerosol changes in the stratosphere using lidar measurements from the NASA CALIPSO satellite and aircraft measurements from the IAGOS-CARIBIC observatory. Between 2008 and 2012 volcanism frequently affected the Northern Hemisphere stratosphere aerosol loadings, whereas the Southern Hemisphere generally had loadings close to background conditions. We show that half of the global stratospheric aerosol optical depth following the Kasatochi, Sarychev and Nabro eruptions is attributable to LMS aerosol. On average, 30% of the global... (More)
Despite their potential to slow global warming, until recently, the radiative forcing associated with volcanic aerosols in the lowermost stratosphere (LMS) had not been considered. Here we study volcanic aerosol changes in the stratosphere using lidar measurements from the NASA CALIPSO satellite and aircraft measurements from the IAGOS-CARIBIC observatory. Between 2008 and 2012 volcanism frequently affected the Northern Hemisphere stratosphere aerosol loadings, whereas the Southern Hemisphere generally had loadings close to background conditions. We show that half of the global stratospheric aerosol optical depth following the Kasatochi, Sarychev and Nabro eruptions is attributable to LMS aerosol. On average, 30% of the global stratospheric aerosol optical depth originated in the LMS during the period 2008-2011. On the basis of the two independent, high-resolution measurement methods, we show that the LMS makes an important contribution to the overall volcanic forcing. (Less)
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author
organization
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type
Contribution to journal
publication status
published
subject
in
Nature Communications
volume
6
publisher
Nature Publishing Group
external identifiers
  • pmid:26158244
  • wos:000358858100036
  • scopus:84937013005
ISSN
2041-1723
DOI
10.1038/ncomms8692
language
English
LU publication?
yes
id
81330d6c-e976-4c8a-83f4-90b35b7a3c2c (old id 7750014)
date added to LUP
2015-09-15 21:04:46
date last changed
2017-10-01 04:23:03
@article{81330d6c-e976-4c8a-83f4-90b35b7a3c2c,
  abstract     = {Despite their potential to slow global warming, until recently, the radiative forcing associated with volcanic aerosols in the lowermost stratosphere (LMS) had not been considered. Here we study volcanic aerosol changes in the stratosphere using lidar measurements from the NASA CALIPSO satellite and aircraft measurements from the IAGOS-CARIBIC observatory. Between 2008 and 2012 volcanism frequently affected the Northern Hemisphere stratosphere aerosol loadings, whereas the Southern Hemisphere generally had loadings close to background conditions. We show that half of the global stratospheric aerosol optical depth following the Kasatochi, Sarychev and Nabro eruptions is attributable to LMS aerosol. On average, 30% of the global stratospheric aerosol optical depth originated in the LMS during the period 2008-2011. On the basis of the two independent, high-resolution measurement methods, we show that the LMS makes an important contribution to the overall volcanic forcing.},
  articleno    = {7692},
  author       = {Andersson, Sandra and Martinsson, Bengt and Vernier, Jean-Paul and Friberg, Johan and Brenninkmeijer, Carl A M and Hermann, Markus and van Velthoven, Peter F J and Zahn, Andreas},
  issn         = {2041-1723},
  language     = {eng},
  publisher    = {Nature Publishing Group},
  series       = {Nature Communications},
  title        = {Significant radiative impact of volcanic aerosol in the lowermost stratosphere.},
  url          = {http://dx.doi.org/10.1038/ncomms8692},
  volume       = {6},
  year         = {2015},
}