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000033352 084__ $$2WoS$$aEnvironmental Sciences
000033352 084__ $$2WoS$$aMeteorology & Atmospheric Sciences
000033352 1001_ $$0P:(DE-HGF)0$$aCorsmeier, U.$$b0
000033352 245__ $$aOzone and PAN formation inside and outside of the Berlin plume - process analysis and numerical process simulation
000033352 260__ $$aDordrecht [u.a.]$$bSpringer Science + Business Media B.V$$c2002
000033352 300__ $$a289 - 321
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000033352 440_0 $$03073$$aJournal of Atmospheric Chemistry$$v42$$x0167-7764
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000033352 520__ $$aDuring the BERLIOZ field phase on 20 July 1998 a 40 km wide ozone-plume 30 to 70 km north of Berlin in the lee of the city was detected. The ozone mixing ratio inside the plume was app. 15 ppb higher than outside, mainly caused by high ozone precursor emissions in Berlin, resulting in a net chemical ozone production of 6.5 ppb h(-1), which overcompensates ozone advection of -3.6 ppb h(-1) and turbulent diffusion of -1.1 ppb h(-1). That means, although more ozone leaves the control volume far in the lee of Berlin than enters it at the leeside cityborder and although turbulent diffusion causes a loss of ozone in the leeside control volume the chemical production inside the volume leads to a net ozone increase. Using a semi-Lagrangian mass budget method to estimate the net ozone production, 5.0 ppb h(-1) are calculated for the plume. This means a fraction of about 20% of ozone in the plume is produced by local emissions, therefore called 'home made' by the Berlin emissions. For the same area KAMM/DRAIS simulations using an observation based initialisation, results in a net production rate between 4.0 and 6.5 ppb h(-1), while the threefold nested EURAD model gives 6.0 ppb h(-1). The process analysis indicates in many cases good agreement (10% or better) between measurements and simulations not only in the ozone concentrations but also with respect to the physical and chemical processes governing the total change. Remaining differences are caused by different resolution in time and space of the models and measurements as well as by errors in the emission calculation.The upwind-downwind differences in PAN concentrations are partly similar to those of ozone, because in the BERLIOZ case they are governed mainly by photochemical production. While in the stable boundary layer at night and windward of Berlin 0.1 to 0.3 ppb are detected, in the centre of the plume at noon concentrations between 0.75 ppb and 1.0 ppb are measured. The O-3/PAN ratio is about 80 to 120 and thus due to the relatively low PAN concentrations significantly higher than found in previous studies. The low PAN formation on 20 July, was mainly restricted by the moderate nonmethane hydrocarbon levels, whereas high PAN concentrations of 3.0 ppb on 21 July, are caused by local production in the boundary layer and by large scale advection aloft.
000033352 536__ $$0G:(DE-Juel1)FUEK257$$2G:(DE-HGF)$$aChemie und Dynamik der Geo-Biosphäre$$cU01$$x0
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000033352 65320 $$2Author$$acity plume
000033352 65320 $$2Author$$aozone formation
000033352 65320 $$2Author$$aPAN formation
000033352 65320 $$2Author$$aairborne measurements
000033352 65320 $$2Author$$aprocess studies
000033352 65320 $$2Author$$anumerical simulations
000033352 65320 $$2Author$$aanthropogenic precursor
000033352 7001_ $$0P:(DE-HGF)0$$aKalthoff, N.$$b1
000033352 7001_ $$0P:(DE-HGF)0$$aVogel, B.$$b2
000033352 7001_ $$0P:(DE-HGF)0$$aHammer, M.-U.$$b3
000033352 7001_ $$0P:(DE-HGF)0$$aFiedler, A. R.$$b4
000033352 7001_ $$0P:(DE-HGF)0$$aKottmeier, C.$$b5
000033352 7001_ $$0P:(DE-Juel1)6742$$aVolz-Thomas, A.$$b6$$uFZJ
000033352 7001_ $$0P:(DE-Juel1)VDB808$$aKonrad, S.$$b7$$uFZJ
000033352 7001_ $$0P:(DE-Juel1)VDB4331$$aGlaser, K.$$b8$$uFZJ
000033352 7001_ $$0P:(DE-HGF)0$$aNeininger, B.$$b9
000033352 7001_ $$0P:(DE-HGF)0$$aLehning, M.$$b10
000033352 7001_ $$0P:(DE-HGF)0$$aJaeschke, W.$$b11
000033352 7001_ $$0P:(DE-HGF)0$$aMemmesheimer, M.$$b12
000033352 7001_ $$0P:(DE-HGF)0$$aRappenglück, B.$$b13
000033352 7001_ $$0P:(DE-HGF)0$$aJakobi, G.$$b14
000033352 773__ $$0PERI:(DE-600)1475524-5$$a10.1023/A:1015732532499$$gVol. 42, p. 289 - 321$$p289 - 321$$q42<289 - 321$$tJournal of atmospheric chemistry$$v42$$x0167-7764$$y2002
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