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首页> 外文期刊>Atmospheric chemistry and physics >The effects of lightning-produced NOsubx/sub and its vertical distribution on atmospheric chemistry: sensitivity simulations with MATCH-MPIC
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The effects of lightning-produced NOsubx/sub and its vertical distribution on atmospheric chemistry: sensitivity simulations with MATCH-MPIC

机译：闪电产生的NO x 及其垂直分布对大气化学的影响：MATCH-MPIC的灵敏度模拟

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摘要

The impact of different assumptions concerning the source magnitude as well asthe vertical placement of lightning-produced nitrogen oxides is studied usingthe global chemistry transport model MATCH-MPIC. The responses of NOx,O3, OH, HNO3 and peroxyacetyl-nitrate (PAN) are investigated. A markedsensitivity to both parameters is found. NOx burdens globally can beenhanced by up to 100% depending on the vertical placement and source magnitudestrength. In all cases, the largest enhancements occur in the tropical uppertroposphere, where lifetimes of most trace gases are longer and where they thusbecome more susceptible to long-range transport by large-scale circulationpatterns. Comparison with observations indicate that 0 and 20 Tg(N)/yrproduction rates of NOx from lightning are too low and toohigh, respectively. However, no single intermediate production rateor vertical distribution can be singled out as best fitting the observations,due to the large scatter in the datasets. This underscores the need forfurther measurement campaigns in key regions, such as the tropical continents.
机译：使用全球化学迁移模型MATCH-MPIC，研究了关于源大小以及闪电产生的氮氧化物垂直放置的不同假设的影响。研究了NO x ，O 3 ，OH，HNO 3 和过氧乙酰硝酸盐（PAN）的响应。发现对两个参数具有明显的敏感性。根据垂直位置和震源强度，全球NO x 的负担最多可以提高100％。在所有情况下，最大的增强作用发生在热带对流层上，在热带对流层中大多数微量气体的寿命更长，因此它们更容易受到大规模环流模式的远距离传输的影响。与观测值的比较表明，雷电产生的NO x 的0和20 Tg（N）/ yr生成率分别太低和太高。但是，由于数据集中的分散性较大，因此没有任何一个中间生产率或垂直分布能最好地拟合出观测值。这突显了在热带大陆等主要地区开展进一步测量活动的必要性。

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