Peroxy radicals measured during Mauna Loa Observatory Photochemistry Experiment 2: The data and first analysis
Peroxy radicals measured during Mauna Loa Observatory Photochemistry Experiment 2: The data and first analysis
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冒纳罗亚天文台光化学实验 2 期间测量的过氧自由基：数据和首次分析
DOI：
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发表时间：
1996
期刊：
影响因子：
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通讯作者：
J. Calvert
中科院分区：
文献类型：
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作者：
C. Cantrell;R. Shetter;T. Gilpin;J. Calvert
过氧自由基的测量使用化学放大在四个密集的测量期间的莫纳罗亚天文台光化学实验（MLOPEX 2）运动从1991年9月至1992年8月。一分钟的平均自由基浓度得到了8至16万亿分之一体积（pptv）的总体不确定性，这取决于环境臭氧的变化。30分钟平均浓度的不确定度为± 30%。过氧自由基表现出昼夜行为预期的大气物种与光化学的起源和相关的一个简单的表达式，描述了自由基的形成和损失。自由基水平的稳态分析的应用表明，在某些条件下，可能需要气相化学以外的损失过程来解释观察到的浓度。
Peroxy radicals were measured using chemical amplification during the four intensive measurement periods of the Mauna Loa Observatory Photochemistry Experiment (MLOPEX 2) campaign from September 1991 to August 1992. One-minute average radical concentrations were obtained with overall uncertainties of 8 to 16 parts per trillion by volume (pptv), depending on the variability of ambient ozone. Thirty-minute averaged concentrations have uncertainties of ±30%. The peroxy radicals exhibited diurnal behavior expected of an atmospheric species with photochemical origins and correlated with a simple expression that describes radical formation and loss. The application of a steady state analysis to the radical levels suggested that for some conditions, loss processes other than gas phase chemistry may be required to explain the observed concentrations.