The Impact of Polar Stratospheric Clouds when Modelling the Future Recovery of the Polar Ozone Layer

UM-UKCA（与联合王国化学和气溶胶模块耦合的统一模式）全球化学气候模式包括一个描述平流层山波引起的温度波动的参数化方案，该方案与模式PSC方案耦合。需要诸如此类的新发展，使交互式化学-气候模型更具物理基础和全面性，以提高我们对平流层臭氧进行准确预测的能力，并减少当前和未来气候的不确定性。该模型将用于了解对二十一世纪世纪平流层极地臭氧水平和两半球气候的预测对列入真实代表性的南、南极臭氧空洞的敏感性，特别是南极臭氧空洞恢复的时间（及其在抵消温室气体增加的影响方面的作用）是否受到影响。该项目将涉及与BAS，NASA和其他国际合作伙伴之间正在进行的补充项目的密切合作。

The UM-UKCA (Unified Model coupled to the United Kingdom Chemistry and Aerosol module) global chemistry-climate model includes a parameterisation scheme describing stratospheric mountain-wave-induced temperature fluctuations, which is coupled to the models PSC scheme. Novel developments such as this that make interactive chemistry-climate models more physically based and comprehensive are needed to improve our ability to make accurate predictions of stratospheric ozone and reduce uncertainties in the current and future climate. The model will be used to understand the sensitivity of projections of twenty-first century stratospheric polar ozone levels and climate in both hemispheres to inclusion of realistic representation of PSCs, and especially whether the timing of the recovery of the Antarctic ozone hole (and its role in offsetting the effects of increasing greenhouse gases) is affected. The project will involve close collaboration with an ongoing complementary project between BAS, NASA, and other international partners.