A new diagnostic for tropospheric ozone production
A new diagnostic for tropospheric ozone production
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DOI：
10.5194/acp-17-13669-2017
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发表时间：
2017-11
影响因子：
6.3
通讯作者：
Peter M. Edwards;M. Evans
中科院分区：
文献类型：
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作者：
Peter M. Edwards;M. Evans
抽象的。对流层臭氧对地球的气候和空气质量很重要。它是在氮氧化物存在下有机物氧化过程中产生的。由于排放的有机物质的范围及其氧化的链状性质，这种化学反应很复杂，很难理解不同过程（排放，沉积，化学）的作用。我们展示了一种新的方法，用于诊断臭氧生产的基础上所发射的分子，其中的命运是由保守的自旋的键合电子内包含的债券的处理。使用这种方法来诊断臭氧生产的GEOS-Chem化学传输模式，我们证明了它的优势，标准的诊断。我们发现，在确定模型内的臭氧生产及其变化的敏感性，债券的数量，它们的化学和寿命，以及对OH的反馈都很重要。这一见解可能使未来的模型模型比较，以更好地确定模型差异的根本原因。
Abstract. Tropospheric ozone is important for the Earth's climate and air quality. It is produced during the oxidation of organics in the presence of nitrogen oxides. Due to the range of organic species emitted and the chain-like nature of their oxidation, this chemistry is complex and understanding the role of different processes (emission, deposition, chemistry) is difficult. We demonstrate a new methodology for diagnosing ozone production based on the processing of bonds contained within emitted molecules, the fate of which is determined by the conservation of spin of the bonding electrons. Using this methodology to diagnose ozone production in the GEOS-Chem chemical transport model, we demonstrate its advantages over the standard diagnostic. We show that the number of bonds emitted, their chemistry and lifetime, and feedbacks on OH are all important in determining the ozone production within the model and its sensitivity to changes. This insight may allow future model–model comparisons to better identify the root causes of model differences.