Impacts of formaldehyde photolysis rates on tropospheric chemistry
Impacts of formaldehyde photolysis rates on tropospheric chemistry
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DOI：
10.1002/asl.251
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发表时间：
2010-01-01
影响因子：
3
通讯作者：
Shallcross, D. E.
中科院分区：
文献类型：
--
作者：
Cooke, M. C.;Utembe, S. R.;Shallcross, D. E.
利用一个全球化学输送模式研究了甲醛光解参数的实验室测定对对流层痕量气体浓度的影响。利用新的实验室数据，甲醛的光解是一个更重要的去除途径。HOx水平随着对流层顶部和两极的最大变化而增加，使甲醛成为对流层上部HOx的更重要来源。臭氧和二次有机气溶胶的全球总量随着臭氧的增加而增加，在太阳天顶角较高时更为显著。版权所有（C）2010皇家气象学会
A global chemistry transport model is employed to investigate the impact of recent laboratory determinations of photolysis parameters for formaldehyde on concentrations of tropospheric trace gases. Using the new laboratory data, the photolysis of formaldehyde is a more significant removal pathway. HOx levels are increased with the greatest changes towards the top of the troposphere and the poles, making formaldehyde a more significant source of upper tropospheric HOx than previously thought. Global totals of ozone and secondary organic aerosol increase with the rise in ozone being more significant at higher solar zenith angles. Copyright (C) 2010 Royal Meteorological Society