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首页> 外文期刊>Atmospheric chemistry and physics >Reconciliation of essential process parameters for an enhanced predictability of Arctic stratospheric ozone loss and its climate interactions (RECONCILE): Activities and results
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Reconciliation of essential process parameters for an enhanced predictability of Arctic stratospheric ozone loss and its climate interactions (RECONCILE): Activities and results

机译：协调必要的工艺参数以增强北极平流层臭氧损失及其气候相互作用的可预测性（RECONCILE）：活动和结果

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The international research project RECONCILE has addressed central questions regarding polar ozone depletion, with the objective to quantify some of the most relevant yet still uncertain physical and chemical processes and thereby improve prognostic modelling capabilities to realistically predict the response of the ozone layer to climate change. This overview paper outlines the scope and the general approach of RECONCILE, and it provides a summary of observations and modelling in 2010 and 2011 that have generated an in many respects unprecedented dataset to study processes in the Arctic winter stratosphere. Principally, it summarises important outcomes of RECONCILE including (i) better constraints and enhanced consistency on the set of parameters governing catalytic ozone destruction cycles, (ii) a better understanding of the role of cold binary aerosols in heterogeneous chlorine activation, (iii) an improved scheme of polar stratospheric cloud (PSC) processes that includes heterogeneous nucleation of nitric acid trihydrate (NAT) and ice on non-volatile background aerosol leading to better model parameterisations with respect to denitrification, and (iv) long transient simulations with a chemistry-climate model (CCM) updated based on the results of RECONCILE that better reproduce past ozone trends in Antarctica and are deemed to produce more reliable predictions of future ozone trends. The process studies and the global simulations conducted in RECONCILE show that in the Arctic, ozone depletion uncertainties in the chemical and microphysical processes are now clearly smaller than the sensitivity to dynamic variability.
机译：国际研究项目RECONCILE已解决了有关极性臭氧消耗的核心问题，目的是量化一些最相关但仍不确定的物理和化学过程，从而提高预测模型的能力，从而切实地预测臭氧层对气候变化的响应。本概述文件概述了RECONCILE的范围和一般方法，并提供了对2010年和2011年观测和建模的总结，这些观测和建模已在许多方面生成了前所未有的数据集，用于研究北极冬季平流层的过程。原则上，它总结了RECONCILE的重要成果，包括（i）更好的约束条件和控制催化性臭氧破坏循环的参数集的一致性，（ii）更好地理解冷二元气溶胶在异质氯活化中的作用，（iii）极地平流层云（PSC）过程的改进方案，包括在非挥发性背景气溶胶上硝酸三水合物（NAT）和冰的异质成核，从而导致反硝化方面的模型参数更好，以及（iv）使用化学反应进行长时间的瞬态模拟根据RECONCILE的结果更新的气候模式（CCM），可以更好地重现南极洲过去的臭氧趋势，并被认为可以对未来的臭氧趋势做出更可靠的预测。在RECONCILE中进行的过程研究和全球模拟表明，在北极，化学和微物理过程中臭氧消耗的不确定性现在明显小于对动态变化的敏感性。

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