On the Role of Heterogeneous Chemistry in Ozone Depletion and Recovery

On the Role of Heterogeneous Chemistry in Ozone Depletion and Recovery
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多相化学在臭氧消耗和恢复中的作用

DOI:
10.1029/2018gl078596
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发表时间:
2018
影响因子:
5.2
通讯作者:
Ryan Reynolds Neely
Ryan Reynolds Neely
中科院分区:
地球科学1区
文献类型:
--
作者:
C. Wilka;K. Shah;K. Stone;S. Solomon;D. Kinnison;M. Mills;A. Schmidt;Ryan Reynolds Neely

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我们证明,确定平流层臭氧变化可归因于臭氧消耗物质和根据《蒙特利尔议定书》采取的行动,需要评估火山爆发的混杂影响。使用最先进的化学气候模型,我们表明,2004年后火山爆发造成的平流层气溶胶负荷增加阻碍了2000年后臭氧恢复的速度。与此相反,在1980年至1998年的消耗时期,火山爆发增加了臭氧损失率。我们还提出了没有任何气溶胶化学的计算,以单独分离气相化学的贡献。这项研究强调了在对臭氧变化进行建模时,需要有关平流层气溶胶负荷的准确信息,特别是准确识别臭氧愈合的早期迹象这一具有挑战性的任务。
We demonstrate that identification of stratospheric ozone changes attributable to ozone depleting substances and actions taken under the Montreal Protocol requires evaluation of confounding influences from volcanic eruptions. Using a state‐of‐the‐art chemistry‐climate model, we show that increased stratospheric aerosol loading from volcanic eruptions after 2004 impeded the rate of ozone recovery post‐2000. In contrast, eruptions increased ozone loss rates over the depletion era from 1980 to 1998. We also present calculations without any aerosol chemistry to isolate contributions from gas‐phase chemistry alone. This study reinforces the need for accurate information regarding stratospheric aerosol loading when modeling ozone changes, particularly for the challenging task of accurately identifying the early signs of ozone healing distinct from other sources of variability.
DOI: 10.5194/acp-17-12533-2017
发表时间: 2017-10
影响因子: 6.3
作者:
V. Sofieva;E. Kyrölä;M. Laine;J. Tamminen;D. Degenstein;A. Bourassa;C. Roth;D. Zawada;M. Weber
通讯作者: V. Sofieva;E. Kyrölä;M. Laine;J. Tamminen;D. Degenstein;A. Bourassa;C. Roth;D. Zawada;M. Weber
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发表时间: 2017-09
影响因子: 6.3
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通讯作者: M. Weber;M. Coldewey‐Egbers;V. Fioletov;S. Frith;J. Wild;J. Burrows;C. Long;D. Loyola