Arctic Ozone Depletion in 2019/20: Roles of Chemistry, Dynamics and the Montreal Protocol
Arctic Ozone Depletion in 2019/20: Roles of Chemistry, Dynamics and the Montreal Protocol
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DOI：
10.1029/2020gl091911
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发表时间：
2021-02-28
影响因子：
5.2
通讯作者：
Chipperfield, Martyn P.
中科院分区：
文献类型：
--
作者：
Feng, Wuhu;Dhomse, Sandip S.;Chipperfield, Martyn P.
我们利用三维化学输送模型和卫星观测研究了2019/20年冬/春的北极臭氧消耗情况，并与往年进行了比较。持续的低温导致氯气在三月份大量活化。3月平均极-帽-平均模拟的化学柱臭氧损失达到78 DU（局部最大损失类似于涡旋的108 DU），与2011年相似。然而，从12月到3月，只有59 DU的微弱动态补充是产量非常低的关键。
We use a three-dimensional chemical transport model and satellite observations to investigate Arctic ozone depletion in winter/spring 2019/20 and compare with earlier years. Persistently, low temperatures caused extensive chlorine activation through to March. March-mean polar-cap-mean modeled chemical column ozone loss reached 78 DU (local maximum loss of similar to 108 DU in the vortex), similar to that in 2011. However, weak dynamical replenishment of only 59 DU from December to March was key to producing very low (