000189748 001__ 189748
000189748 005__ 20240712101029.0
000189748 0247_ $$2doi$$a10.5194/acp-15-1289-2015
000189748 0247_ $$2ISSN$$a1680-7316
000189748 0247_ $$2ISSN$$a1680-7324
000189748 0247_ $$2Handle$$a2128/8538
000189748 0247_ $$2WOS$$aWOS:000349799500010
000189748 037__ $$aFZJ-2015-02780
000189748 082__ $$a550
000189748 1001_ $$0P:(DE-HGF)0$$aKaiser, J.$$b0
000189748 245__ $$aEvidence for an unidentified non-photochemical ground-level source of formaldehyde in the Po Valley with potential implications for ozone production
000189748 260__ $$aKatlenburg-Lindau$$bEGU$$c2015
000189748 3367_ $$0PUB:(DE-HGF)16$$2PUB:(DE-HGF)$$aJournal Article$$bjournal$$mjournal$$s1429770989_1332
000189748 3367_ $$2DataCite$$aOutput Types/Journal article
000189748 3367_ $$00$$2EndNote$$aJournal Article
000189748 3367_ $$2BibTeX$$aARTICLE
000189748 3367_ $$2ORCID$$aJOURNAL_ARTICLE
000189748 3367_ $$2DRIVER$$aarticle
000189748 520__ $$aOzone concentrations in the Po Valley of northern Italy often exceed international regulations. As both a source of radicals and an intermediate in the oxidation of most volatile organic compounds (VOCs), formaldehyde (HCHO) is a useful tracer for the oxidative processing of hydrocarbons that leads to ozone production. We investigate the sources of HCHO in the Po Valley using vertical profile measurements acquired from the airship Zeppelin NT over an agricultural region during the PEGASOS 2012 campaign. Using a 1-D model, the total VOC oxidation rate is examined and discussed in the context of formaldehyde and ozone production in the early morning. While model and measurement discrepancies in OH reactivity are small (on average 3.4 ± 13%), HCHO concentrations are underestimated by as much as 1.5 ppb (45%) in the convective mixed layer. A similar underestimate in HCHO was seen in the 2002–2003 FORMAT Po Valley measurements, though the additional source of HCHO was not identified. Oxidation of unmeasured VOC precursors cannot explain the missing HCHO source, as measured OH reactivity is explained by measured VOCs and their calculated oxidation products. We conclude that local direct emissions from agricultural land are the most likely source of missing HCHO. Model calculations demonstrate that radicals from degradation of this non-photochemical HCHO source increase model ozone production rates by as much as 0.6 ppb h−1 (12%) before noon.
000189748 536__ $$0G:(DE-HGF)POF3-243$$a243 - Tropospheric trace substances and their transformation processes (POF3-243)$$cPOF3-243$$fPOF III$$x0
000189748 536__ $$0G:(DE-Juel1)HITEC-20170406$$aHITEC - Helmholtz Interdisciplinary Doctoral Training in Energy and Climate Research (HITEC) (HITEC-20170406)$$cHITEC-20170406$$x1
000189748 588__ $$aDataset connected to CrossRef, juser.fz-juelich.de
000189748 7001_ $$0P:(DE-HGF)0$$aWolfe, G. M.$$b1
000189748 7001_ $$0P:(DE-Juel1)2693$$aBohn, B.$$b2$$ufzj
000189748 7001_ $$0P:(DE-Juel1)7591$$aBroch, S.$$b3$$ufzj
000189748 7001_ $$0P:(DE-Juel1)7363$$aFuchs, Hendrik$$b4$$ufzj
000189748 7001_ $$0P:(DE-HGF)0$$aGanzeveld, L. N.$$b5
000189748 7001_ $$0P:(DE-Juel1)8954$$aGomm, Sebastian$$b6$$ufzj
000189748 7001_ $$0P:(DE-Juel1)5628$$aHäseler, R.$$b7$$ufzj
000189748 7001_ $$0P:(DE-Juel1)16326$$aHofzumahaus, A.$$b8$$ufzj
000189748 7001_ $$0P:(DE-Juel1)16342$$aHolland, F.$$b9$$ufzj
000189748 7001_ $$0P:(DE-Juel1)8740$$aJäger, Julia$$b10
000189748 7001_ $$0P:(DE-Juel1)6775$$aLi, Xin$$b11$$ufzj
000189748 7001_ $$0P:(DE-Juel1)136668$$aLohse, I.$$b12$$ufzj
000189748 7001_ $$0P:(DE-Juel1)6776$$aLu, K.$$b13
000189748 7001_ $$0P:(DE-HGF)0$$aPrévôt, A. S. H.$$b14
000189748 7001_ $$0P:(DE-Juel1)16347$$aRohrer, F.$$b15$$ufzj
000189748 7001_ $$0P:(DE-Juel1)2367$$aWegener, R.$$b16$$ufzj
000189748 7001_ $$0P:(DE-HGF)0$$aWolf, R.$$b17
000189748 7001_ $$0P:(DE-Juel1)16346$$aMentel, T. F.$$b18$$ufzj
000189748 7001_ $$0P:(DE-Juel1)4528$$aKiendler-Scharr, A.$$b19$$ufzj
000189748 7001_ $$0P:(DE-Juel1)16324$$aWahner, A.$$b20$$ufzj
000189748 7001_ $$0P:(DE-HGF)0$$aKeutsch, F. N.$$b21$$eCorresponding Author
000189748 773__ $$0PERI:(DE-600)2069847-1$$a10.5194/acp-15-1289-2015$$gVol. 15, no. 3, p. 1289 - 1298$$n3$$p1289 - 1298$$tAtmospheric chemistry and physics$$v15$$x1680-7324$$y2015
000189748 8564_ $$uwww.atmos-chem-phys.net/15/1289/2015/
000189748 8564_ $$uhttps://juser.fz-juelich.de/record/189748/files/acp-15-1289-2015.pdf$$yOpenAccess
000189748 8564_ $$uhttps://juser.fz-juelich.de/record/189748/files/acp-15-1289-2015.gif?subformat=icon$$xicon$$yOpenAccess
000189748 8564_ $$uhttps://juser.fz-juelich.de/record/189748/files/acp-15-1289-2015.jpg?subformat=icon-1440$$xicon-1440$$yOpenAccess
000189748 8564_ $$uhttps://juser.fz-juelich.de/record/189748/files/acp-15-1289-2015.jpg?subformat=icon-180$$xicon-180$$yOpenAccess
000189748 8564_ $$uhttps://juser.fz-juelich.de/record/189748/files/acp-15-1289-2015.jpg?subformat=icon-640$$xicon-640$$yOpenAccess
000189748 8564_ $$uhttps://juser.fz-juelich.de/record/189748/files/acp-15-1289-2015.pdf?subformat=pdfa$$xpdfa$$yOpenAccess
000189748 8564_ $$uhttps://juser.fz-juelich.de/record/189748/files/acp-15-1289-2015.jpg?subformat=icon-144$$xicon-144$$yOpenAccess
000189748 909CO $$ooai:juser.fz-juelich.de:189748$$pdnbdelivery$$pVDB$$pVDB:Earth_Environment$$pdriver$$popen_access$$popenaire
000189748 9101_ $$0I:(DE-588b)5008462-8$$6P:(DE-Juel1)2693$$aForschungszentrum Jülich GmbH$$b2$$kFZJ
000189748 9101_ $$0I:(DE-588b)5008462-8$$6P:(DE-Juel1)7591$$aForschungszentrum Jülich GmbH$$b3$$kFZJ
000189748 9101_ $$0I:(DE-588b)5008462-8$$6P:(DE-Juel1)7363$$aForschungszentrum Jülich GmbH$$b4$$kFZJ
000189748 9101_ $$0I:(DE-588b)5008462-8$$6P:(DE-Juel1)8954$$aForschungszentrum Jülich GmbH$$b6$$kFZJ
000189748 9101_ $$0I:(DE-588b)5008462-8$$6P:(DE-Juel1)5628$$aForschungszentrum Jülich GmbH$$b7$$kFZJ
000189748 9101_ $$0I:(DE-588b)5008462-8$$6P:(DE-Juel1)16326$$aForschungszentrum Jülich GmbH$$b8$$kFZJ
000189748 9101_ $$0I:(DE-588b)5008462-8$$6P:(DE-Juel1)16342$$aForschungszentrum Jülich GmbH$$b9$$kFZJ
000189748 9101_ $$0I:(DE-588b)5008462-8$$6P:(DE-Juel1)6775$$aForschungszentrum Jülich GmbH$$b11$$kFZJ
000189748 9101_ $$0I:(DE-588b)5008462-8$$6P:(DE-Juel1)136668$$aForschungszentrum Jülich GmbH$$b12$$kFZJ
000189748 9101_ $$0I:(DE-588b)5008462-8$$6P:(DE-Juel1)16347$$aForschungszentrum Jülich GmbH$$b15$$kFZJ
000189748 9101_ $$0I:(DE-588b)5008462-8$$6P:(DE-Juel1)2367$$aForschungszentrum Jülich GmbH$$b16$$kFZJ
000189748 9101_ $$0I:(DE-588b)5008462-8$$6P:(DE-Juel1)16346$$aForschungszentrum Jülich GmbH$$b18$$kFZJ
000189748 9101_ $$0I:(DE-588b)5008462-8$$6P:(DE-Juel1)4528$$aForschungszentrum Jülich GmbH$$b19$$kFZJ
000189748 9101_ $$0I:(DE-588b)5008462-8$$6P:(DE-Juel1)16324$$aForschungszentrum Jülich GmbH$$b20$$kFZJ
000189748 9130_ $$0G:(DE-HGF)POF2-233$$1G:(DE-HGF)POF2-230$$2G:(DE-HGF)POF2-200$$aDE-HGF$$bErde und Umwelt$$lAtmosphäre und Klima$$vTrace gas and aerosol processes in the troposphere$$x0
000189748 9131_ $$0G:(DE-HGF)POF3-243$$1G:(DE-HGF)POF3-240$$2G:(DE-HGF)POF3-200$$3G:(DE-HGF)POF3$$4G:(DE-HGF)POF$$aDE-HGF$$bErde und Umwelt$$lAtmosphäre und Klima$$vTropospheric trace substances and their transformation processes$$x0
000189748 9141_ $$y2015
000189748 915__ $$0LIC:(DE-HGF)CCBY3$$2HGFVOC$$aCreative Commons Attribution CC BY 3.0
000189748 915__ $$0StatID:(DE-HGF)0150$$2StatID$$aDBCoverage$$bWeb of Science Core Collection
000189748 915__ $$0StatID:(DE-HGF)0100$$2StatID$$aJCR
000189748 915__ $$0StatID:(DE-HGF)9905$$2StatID$$aIF >= 5
000189748 915__ $$0StatID:(DE-HGF)0500$$2StatID$$aDBCoverage$$bDOAJ
000189748 915__ $$0StatID:(DE-HGF)0200$$2StatID$$aDBCoverage$$bSCOPUS
000189748 915__ $$0StatID:(DE-HGF)0110$$2StatID$$aWoS$$bScience Citation Index
000189748 915__ $$0StatID:(DE-HGF)0111$$2StatID$$aWoS$$bScience Citation Index Expanded
000189748 915__ $$0StatID:(DE-HGF)0510$$2StatID$$aOpenAccess
000189748 915__ $$0StatID:(DE-HGF)1150$$2StatID$$aDBCoverage$$bCurrent Contents - Physical, Chemical and Earth Sciences
000189748 915__ $$0StatID:(DE-HGF)0300$$2StatID$$aDBCoverage$$bMedline
000189748 915__ $$0StatID:(DE-HGF)0199$$2StatID$$aDBCoverage$$bThomson Reuters Master Journal List
000189748 920__ $$lyes
000189748 9201_ $$0I:(DE-Juel1)IEK-8-20101013$$kIEK-8$$lTroposphäre$$x0
000189748 9801_ $$aFullTexts
000189748 980__ $$ajournal
000189748 980__ $$aVDB
000189748 980__ $$aUNRESTRICTED
000189748 980__ $$aFullTexts
000189748 980__ $$aI:(DE-Juel1)IEK-8-20101013
000189748 981__ $$aI:(DE-Juel1)ICE-3-20101013