Sources of reactive nitrogen in the upper troposphere during SONEX
Sources of reactive nitrogen in the upper troposphere during SONEX
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SONEX期间对流层上层活性氮的来源
DOI：
10.1029/1999gl900532
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发表时间：
1999
期刊：
影响因子：
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通讯作者：
H. Singh
中科院分区：
文献类型：
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作者：
S. C. Liu;H. Yu;B. Ridley;Y. Wang;D. Davis;Y. Kondo;M. Koike;B. Anderson;S. Vay;G. Sachse;G. Gregory;H. Fuelburg;A. Thompson;H. Singh
分析了SONEX观测到的对流层上层（UT）和平流层下层（LS）中NOy、O3、N2O、超细凝结核（CN）和其他微量气体之间的关系，目的是确定和量化UT中NOy的来源。我们使用N2O将对流层上层空气与平流层影响空气分离，并将分析重点放在对流层上层空气上。NOy和O3随N2O的变化具有显著的相似性。NOy和O3之间的唯一区别是在对流层上层空气中发现的，那里有大量的数据点，NOy和NOy/O3比值都很高。造成这些高NOy值的主要来源是闪电和地表源通过对流输送到UT的辐射。
The relationship among NOy, O3, N2O, ultra‐fine condensation nuclei (CN), and other trace gases in the upper troposphere (UT) and lower stratosphere (LS) observed during SONEX are analyzed with the goal to identify and quantify the sources of NOy in the UT. We use N2O to separate upper tropospheric air from stratospheric influenced air and focus our analysis to the former. The distributions of NOy and O3 show remarkable similarity when they are plotted as a function of N2O. The only difference between NOy and O3 is found in upper tropospheric air where a large number of data points have high values of both NOy and the NOy/O3 ratio. Major sources contributing to these high NOy values are found to be emissions from lightning and surface sources transported to the UT by convection.
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