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| Titel |
A perturbed parameter model ensemble to investigate Mt. Pinatubo's 1991 initial sulfur mass emission |
| VerfasserIn |
J.-X. Sheng, D. K. Weisenstein, B.-P. Luo, E. Rozanov, F. Arfeuille, T. Peter |
| Medientyp |
Artikel
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| Sprache |
Englisch
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| ISSN |
1680-7316
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| Digitales Dokument |
URL |
| Erschienen |
In: Atmospheric Chemistry and Physics ; 15, no. 20 ; Nr. 15, no. 20 (2015-10-19), S.11501-11512 |
| Datensatznummer |
250120101
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| Publikation (Nr.) |
 copernicus.org/acp-15-11501-2015.pdf |
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| Zusammenfassung |
| We have performed more than 300 atmospheric simulations of the 1991 Pinatubo
eruption using the AER 2-D sulfate aerosol model to optimize the initial
sulfur mass injection as a function of altitude, which in previous modeling
studies has often been chosen in an ad hoc manner (e.g., by applying a
rectangular-shaped emission profile). Our simulations are generated by
varying a four-parameter vertical mass distribution, which is determined by a
total injection mass and a skew-normal distribution function. Our results
suggest that (a) the initial mass loading of the Pinatubo eruption is
approximately 14 Mt of SO2; (b) the injection vertical distribution is
strongly skewed towards the lower stratosphere, leading to a peak mass sulfur
injection at 18–21 km; (c) the injection magnitude and height affect early
southward transport of the volcanic clouds as observed by SAGE II. |
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