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Poster communications
Quantifying the impact of moderate volcanic eruptions on the stratosphere
Fabrice Jégou
1, *
Gwenaël Berthet
1
T Lurton
1
D Vignelles
1
Nelson Bègue
2
Thierry Portafaix
2
G Payen
3
Hassan Bencherif
2
Jean-Baptiste Renard
1
L Clarisse
4
Jean-Paul Vernier
5
G Krysztofiak
1
Tjarda Roberts
1
Lise Jourdain
1
*
Corresponding author
Fabrice Jégou 1
Correspondent author
Gwenaël Berthet 1
Author Employer institution : Institut national des sciences de l'Univers IdHAL : gwenael-berthet ResearcherId : http://www.researcherid.com/rid/H-8010-2018 ORCID : https://orcid.org/0000-0003-3169-1636
T Lurton 1
Author
D Vignelles 1
Author
Nelson Bègue 2
Author Employer institution : Laboratoire de l'Atmosphère et des Cyclones
Thierry Portafaix 2
Author IdHAL : portafaix-thierry
G Payen 3
Author
Hassan Bencherif 2
Author IdHAL : hassan-bencherif IdRef : https://www.idref.fr/128778776 ORCID : https://orcid.org/0000-0003-1815-0667
Jean-Baptiste Renard 1
Author Employer institution : Institut national des sciences de l'Univers
L Clarisse 4
Author
Jean-Paul Vernier 5
Author
G Krysztofiak 1
Author
Tjarda Roberts 1
Author IdHAL : tjr29
Lise Jourdain 1
Author
1
LPC2E - Laboratoire de Physique et Chimie de l'Environnement et de l'Espace (3A, Avenue de la Recherche Scientifique 45071 Orléans cedex 2 - France)
- OSUC - Observatoire des Sciences de l'Univers en région Centre : UMS3116 (Campus Géosciences, 1A rue de la Férollerie, 45071 Orléans - France)
- INSU - CNRS - Institut national des sciences de l'Univers (INSU-CNRS 3 rue Michel-Ange, 75794 Paris Cedex 16 - France)
- Observatoire de Paris (61 Av de l'Observatoire 75014 PARIS - France)
- PSL - Université Paris sciences et lettres (60 rue Mazarine 75006 Paris - France)
- UO - Université d'Orléans (Château de la Source - Avenue du Parc Floral - BP 6749 - 45067 Orléans cedex 2 - France)
- CNRS - Centre National de la Recherche Scientifique : UMS3116 (France)
- CNES - Centre National d’Études Spatiales [Paris] : UMR 7328 (Siège social : 2 place Maurice Quentin, 75039 Paris - France)
2
LACy - Laboratoire de l'Atmosphère et des Cyclones (Faculté des Sciences et techniques - Université de La Réunion 15 avenue René Cassin CS92003 97744 SAINT DENIS CEDEX 9 - France)
- Météo France (France)
- UR - Université de La Réunion (15, avenue René Cassin - CS92003 -97744 Saint Denis Cedex 9 - Réunion)
- CNRS - Centre National de la Recherche Scientifique : UMR8105 (France)
3
OSU-Réunion - Observatoire des Sciences de l'Univers de La Réunion (OSU-R
Bâtiment S4B, 15, avenue René Cassin
CS 92003 97744 Saint-Denis Cedex 9 - Réunion)
- UR - Université de La Réunion : UMS3365 (15, avenue René Cassin - CS92003 -97744 Saint Denis Cedex 9 - Réunion)
- INSU - CNRS - Institut national des sciences de l'Univers (INSU-CNRS 3 rue Michel-Ange, 75794 Paris Cedex 16 - France)
4
Spectroscopie de l'atmosphère, Service de Chimie Quantique et Photophysique (Université Libre de Bruxelles 50 avenue F. D. Roosevelt B-1050 Brussels - Belgium)
- ULB - Université libre de Bruxelles (Avenue Franklin Roosevelt 50 - 1050 Bruxelles - Belgium)
5
LaRC - NASA Langley Research Center [Hampton] (Hampton, VA 23681-2199 - United States)
Abstract : It is expected that the aerosols in the stratosphere, are predominantly sulfates resulting from natural or anthropogenic sources of precursor gases mainly: carbonyl sulfide (OCS), sulfur dioxide (SO2). Sulphate aerosols are regarded as the main constituent of the "Junge layer" between the tropopause and about 30 km. This assumption is regularly challenged by detection of solid aerosols with aircraft and balloon
measurements. The direct injection of gaseous SO2 into the stratosphere by major volcanic eruptions is likely to generate significant amounts of sulfate aerosols that can stay for several years. Recently, Vernier et al. (2011) have shown from satellite measurements that moderate eruptions modulate the aerosol content during periods not influenced by a major volcanic eruption, called "background" periods.
Surprisingly, the radiative impact of the background stratospheric aerosols over the last decade, has been found to be significant with a counterbalance to global warming (Solomon et al., 2011).
Document type :
Poster communications
Complete list of metadatas
https://hal.univ-reunion.fr/hal-01337346
Contributor : Thierry Portafaix <>
Submitted on : Thursday, June 30, 2016 - 8:24:48 AM
Last modification on : Thursday, September 24, 2020 - 2:26:02 PM
Long-term archiving on: : Saturday, October 1, 2016 - 10:19:44 AM
Contributor : Thierry Portafaix <>
Submitted on : Thursday, June 30, 2016 - 8:24:48 AM
Last modification on : Thursday, September 24, 2020 - 2:26:02 PM
Long-term archiving on: : Saturday, October 1, 2016 - 10:19:44 AM
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- HAL Id : hal-01337346, version 1
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UNIV-REUNION | CNRS | UNIV-ORLEANS | METEO | LPC2E | LACY | OSU-R | INSU | OSUC | PAPANGUE | OBSPM | FST-REUNION | AFRIQ | PSL
Citation
Fabrice Jégou, Gwenaël Berthet, T Lurton, D Vignelles, Nelson Bègue, et al.. Quantifying the impact of moderate volcanic eruptions on the stratosphere. LEFE-CHAT workshop, 2015, Aussois, France. ⟨hal-01337346⟩
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