Copernicus期刊
期刊
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作者:J. Williams , P. Artaxo ...
来源:[J].Atmospheric Chemistry and Physics, 2016, Vol.16 (17), pp.10965-10984
摘要:Methyl ethyl ketone (MEK) enters the atmosphere following direct emissionfrom vegetation and anthropogenic activities, as well as being produced bythe gas-phase oxidation of volatile organic compounds (VOCs) such as n -butane. This study presents the first overview of ambient MEK...
作者:J. Williams , T. Hoffmann ...
来源:[J].Atmospheric Chemistry and Physics, 2015, Vol.15 (2), pp.799-813
摘要:Atmospheric concentrations of nitrous acid (HONO), one of the majorprecursors of the hydroxyl radical (OH) in the troposphere, significantlyexceed the values predicted by the assumption of a photostationary state(PSS) during daytime. Therefore, additional sources of HONO wer...
作者:... P. R. Veres , J. Williams , R. J. Yokelson
来源:[J].Atmospheric Chemistry and Physics, 2015, Vol.15 (2), pp.845-865
摘要:We deployed a high-resolution proton-transfer-reaction time-of-flight massspectrometer (PTR-TOF-MS) to measure biomass-burning emissions from peat,crop residue, cooking fires, and many other fire types during the fourthFire Lab at Missoula Experiment (FLAME-4) laboratory cam...
作者:... F. Helleis , J. Williams , B. Jähne
来源:[J].Ocean Science, 2015, Vol.11 (1), pp.121-138
摘要:In this study we present gas-exchange measurements conducted in a large-scalewind–wave tank. Fourteen chemical species spanning a wide range of solubility(dimensionless solubility, α = 0.4 to 5470) and diffusivity(Schmidt number in water, Sc w = 594 to 1194)...
作者:J. Williams , S. Wolff ...
来源:[J].Atmospheric Chemistry and Physics, 2015, Vol.15 (6), pp.3359-3378
摘要:The Amazonian rainforest is a large tropical ecosystem, which is one of thelast pristine continental terrains. This ecosystem is ideally located for thestudy of diel and seasonal behaviour of biogenic volatile organic compounds(BVOCs) in the absence of local human interferen...
作者:... M. J. Tang , J. Williams , M. Boy
来源:[J].Atmospheric Chemistry and Physics, 2015, Vol.15 (7), pp.3909-3932
摘要:Using the 1-D atmospheric chemistry transport model SOSAA, we haveinvestigated the atmospheric reactivity of a boreal forest ecosystemduring the HUMPPA-COPEC-10 campaign (summer 2010, at SMEAR~II insouthern Finland). For the very first time, we present verticallyresolved mod...
作者:J. Williams , A. R. Baker ...
来源:[J].Biogeosciences, 2015, Vol.12 (10), pp.3131-3140
摘要:To obtain a comprehensive picture of the spatial distribution of water-soluble organic nitrogen (WSON) in marine aerosols, samples were collectedduring research cruises in the tropical and southern Atlantic Ocean and alsoin the southern Indian Ocean (Amsterdam Island) for a ...
作者:J. Williams , J. Fachinger ...
来源:[J].Atmospheric Chemistry and Physics, 2016, Vol.16 (8), pp.4867-4883
摘要:Through measurements of NO2, O3 and NO3during the PARADE campaign (PArticles and RAdicals, Diel observations ofmEchanisms of oxidation) in the German Taunus mountains we derive nighttimesteady-state lifetimes ( τ ss) of NO3...
作者:... J. Kesselmeier , J. Lelieveld , J. Williams
来源:[J].Biogeosciences, 2013, Vol.10 (6), pp.4241-4257
摘要:Numerous reactive volatile organic compounds (VOCs) are emitted intothe atmosphere by vegetation. Most biogenic VOCs are highly reactivetowards the atmosphere's most important oxidant, the hydroxyl (OH)radical. One way to investigate the chemical interplay betweenbiosphere a...
作者:J. Williams , H. Harder ...
来源:[J].Atmospheric Chemistry and Physics, 2013, Vol.13 (11), pp.5731-5749
摘要:Peroxy radicals were measured by a PeRCA (Peroxy Radical Chemical Amplifier)instrument in the boundary layer during the DOMINO (Diel Oxidant MechanismsIn relation to Nitrogen Oxides) campaign at a coastal, forested siteinfluenced by urban-industrial emissions in southern Spa...

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