Stratospheric ozone changes from explosive tropical volcanoes: Modelling and ice core constraints
International audience • The tropical volcanic eruption in the model shows that the sign of the ozone change is highly sensitive to stratospheric chlorine amounts. • δ 15 N(NO − 3) (a proxy for surface ultraviolet radiation) from the Samalas eruption is obscured by inter-annual variability in the ic...
Published in: | Journal of Geophysical Research: Atmospheres |
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Main Authors: | , , , , , , , , , , , |
Other Authors: | , , , |
Format: | Article in Journal/Newspaper |
Language: | English |
Published: |
HAL CCSD
2020
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Subjects: | |
Online Access: | https://hal.science/hal-03402301 https://hal.science/hal-03402301/document https://hal.science/hal-03402301/file/ISOL_ICE_volcano.pdf https://doi.org/10.1029/2019jd032290 |
Summary: | International audience • The tropical volcanic eruption in the model shows that the sign of the ozone change is highly sensitive to stratospheric chlorine amounts. • δ 15 N(NO − 3) (a proxy for surface ultraviolet radiation) from the Samalas eruption is obscured by inter-annual variability in the ice core. • δ 15 N(NO − 3) changes are unlikely to be synchronous with volcanic sulphate peaks due to different pathways for these signals to reach the ice. |
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