Impacts of formaldehyde photolysis rates on tropospheric chemistry

被引：35

作者：

Cooke, M. C. ^{[1
]}

Utembe, S. R. ^{[1
]}

Carbajo, P. Gorrotxategi ^{[1
]}

Archibald, A. T. ^{[1
]}

Orr-Ewing, A. J. ^{[1
]}

Jenkin, M. E. ^{[1
,2
]}

Derwent, R. G. ^{[3
]}

Lary, D. J. ^{[4
]}

Shallcross, D. E. ^{[1
]}

机构：

[1] Univ Bristol, Sch Chem, Bristol BS8 1TS, Avon, England

[2] Atmospher Chem Serv, Okehampton EX20 1FB, Devon, England

[3] Rdscientific, Newbury, Berks, England

[4] Univ Maryland Baltimore Cty, Goddard Earth Sci & Technol Ctr, Baltimore, MD 21228 USA

来源：

ATMOSPHERIC SCIENCE LETTERS | 2010年 / 11卷 / 01期

基金：

英国工程与自然科学研究理事会;

关键词：

formaldehyde; photolysis; global; modelling; HOx; INTERMEDIATES CRI MECHANISM; ABSORPTION CROSS-SECTIONS; EMISSION; HYDROGEN; OZONE;

D O I：

10.1002/asl.251

中图分类号：

P3 [地球物理学]; P59 [地球化学];

学科分类号：

0708 ; 070902 ;

摘要：

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

引用

页码：33 / 38

页数：6

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