000857542 001__ 857542
000857542 005__ 20240712101034.0
000857542 0247_ $$2doi$$a10.5194/acp-18-10825-2018
000857542 0247_ $$2ISSN$$a1680-7316
000857542 0247_ $$2ISSN$$a1680-7324
000857542 0247_ $$2ISSN$$a=
000857542 0247_ $$2ISSN$$aAtmospheric
000857542 0247_ $$2ISSN$$achemistry
000857542 0247_ $$2ISSN$$aand
000857542 0247_ $$2ISSN$$aphysics
000857542 0247_ $$2ISSN$$a(Online)
000857542 0247_ $$2Handle$$a2128/20124
000857542 0247_ $$2WOS$$aWOS:000440515900001
000857542 0247_ $$2altmetric$$aaltmetric:51672483
000857542 037__ $$aFZJ-2018-06533
000857542 082__ $$a550
000857542 1001_ $$00000-0002-1428-9453$$aMallik, Chinmay$$b0$$eCorresponding author
000857542 245__ $$aOxidation processes in the eastern Mediterranean atmosphere: evidence from the modelling of HO<sub><i>x</i></sub> measurements over Cyprus
000857542 260__ $$aKatlenburg-Lindau$$bEGU$$c2018
000857542 3367_ $$2DRIVER$$aarticle
000857542 3367_ $$2DataCite$$aOutput Types/Journal article
000857542 3367_ $$0PUB:(DE-HGF)16$$2PUB:(DE-HGF)$$aJournal Article$$bjournal$$mjournal$$s1542793369_5314
000857542 3367_ $$2BibTeX$$aARTICLE
000857542 3367_ $$2ORCID$$aJOURNAL_ARTICLE
000857542 3367_ $$00$$2EndNote$$aJournal Article
000857542 520__ $$aThe Mediterranean is a climatically sensitive region located at the crossroads of air masses from three continents: Europe, Africa, and Asia. The chemical processing of air masses over this region has implications not only for the air quality but also for the long-range transport of air pollution. To obtain a comprehensive understanding of oxidation processes over the Mediterranean, atmospheric concentrations of the hydroxyl radical (OH) and the hydroperoxyl radical (HO2) were measured during an intensive field campaign (CYprus PHotochemistry EXperiment, CYPHEX-2014) in the northwest of Cyprus in the summer of 2014. Very low local anthropogenic and biogenic emissions around the measurement location provided a vantage point to study the contrasts in atmospheric oxidation pathways under highly processed marine air masses and those influenced by relatively fresh emissions from mainland Europe.The CYPHEX measurements were used to evaluate OH and HO2 simulations using a photochemical box model (CAABA/MECCA) constrained with CYPHEX observations of O3, CO, NOx, hydrocarbons, peroxides, and other major HOx (OH+HO2) sources and sinks in a low-NOx environment (<100pptv of NO). The model simulations for OH agreed to within 10% with in situ OH observations. Model simulations for HO2 agreed to within 17% of the in situ observations. However, the model strongly under-predicted HO2 at high terpene concentrations, this under-prediction reaching up to 38% at the highest terpene levels. Different schemes to improve the agreement between observed and modelled HO2, including changing the rate coefficients for the reactions of terpene-generated peroxy radicals (RO2) with NO and HO2 as well as the autoxidation of terpene-generated RO2 species, are explored in this work. The main source of OH in Cyprus was its primary production from O3 photolysis during the day and HONO photolysis during early morning. Recycling contributed about one-third of the total OH production, and the maximum recycling efficiency was about 0.7. CO, which was the largest OH sink, was also the largest HO2 source. The lowest HOx production and losses occurred when the air masses had higher residence time over the oceans.
000857542 536__ $$0G:(DE-HGF)POF3-243$$a243 - Tropospheric trace substances and their transformation processes (POF3-243)$$cPOF3-243$$fPOF III$$x0
000857542 588__ $$aDataset connected to CrossRef
000857542 7001_ $$0P:(DE-HGF)0$$aTomsche, Laura$$b1
000857542 7001_ $$0P:(DE-HGF)0$$aBourtsoukidis, Efstratios$$b2
000857542 7001_ $$0P:(DE-HGF)0$$aCrowley, John N.$$b3
000857542 7001_ $$0P:(DE-HGF)0$$aDerstroff, Bettina$$b4
000857542 7001_ $$0P:(DE-HGF)0$$aFischer, Horst$$b5
000857542 7001_ $$0P:(DE-HGF)0$$aHafermann, Sascha$$b6
000857542 7001_ $$0P:(DE-HGF)0$$aHüser, Imke$$b7
000857542 7001_ $$0P:(DE-Juel1)173894$$aJaved, Umar$$b8
000857542 7001_ $$0P:(DE-HGF)0$$aKeßel, Stephan$$b9
000857542 7001_ $$00000-0001-6307-3846$$aLelieveld, Jos$$b10
000857542 7001_ $$0P:(DE-HGF)0$$aMartinez, Monica$$b11
000857542 7001_ $$00000-0002-0062-7976$$aMeusel, Hannah$$b12
000857542 7001_ $$0P:(DE-Juel1)166537$$aNovelli, Anna$$b13
000857542 7001_ $$00000-0003-4443-0822$$aPhillips, Gavin J.$$b14
000857542 7001_ $$00000-0003-2440-6104$$aPozzer, Andrea$$b15
000857542 7001_ $$0P:(DE-HGF)0$$aReiffs, Andreas$$b16
000857542 7001_ $$00000-0001-6479-2092$$aSander, Rolf$$b17
000857542 7001_ $$0P:(DE-Juel1)167439$$aTaraborrelli, Domenico$$b18
000857542 7001_ $$0P:(DE-HGF)0$$aSauvage, Carina$$b19
000857542 7001_ $$0P:(DE-HGF)0$$aSchuladen, Jan$$b20
000857542 7001_ $$00000-0003-4889-1669$$aSu, Hang$$b21
000857542 7001_ $$0P:(DE-HGF)0$$aWilliams, Jonathan$$b22
000857542 7001_ $$0P:(DE-HGF)0$$aHarder, Hartwig$$b23$$eCorresponding author
000857542 773__ $$0PERI:(DE-600)2069847-1$$a10.5194/acp-18-10825-2018$$gVol. 18, no. 14, p. 10825 - 10847$$n14$$p10825 - 10847$$tAtmospheric chemistry and physics$$v18$$x1680-7324$$y2018
000857542 8564_ $$uhttps://juser.fz-juelich.de/record/857542/files/acp-18-10825-2018.pdf$$yOpenAccess
000857542 8564_ $$uhttps://juser.fz-juelich.de/record/857542/files/acp-18-10825-2018.pdf?subformat=pdfa$$xpdfa$$yOpenAccess
000857542 909CO $$ooai:juser.fz-juelich.de:857542$$pdnbdelivery$$pVDB$$pVDB:Earth_Environment$$pdriver$$popen_access$$popenaire
000857542 9101_ $$0I:(DE-588b)5008462-8$$6P:(DE-Juel1)173894$$aForschungszentrum Jülich$$b8$$kFZJ
000857542 9101_ $$0I:(DE-588b)5008462-8$$6P:(DE-Juel1)166537$$aForschungszentrum Jülich$$b13$$kFZJ
000857542 9101_ $$0I:(DE-588b)5008462-8$$6P:(DE-Juel1)167439$$aForschungszentrum Jülich$$b18$$kFZJ
000857542 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
000857542 9141_ $$y2018
000857542 915__ $$0StatID:(DE-HGF)0200$$2StatID$$aDBCoverage$$bSCOPUS
000857542 915__ $$0LIC:(DE-HGF)CCBY4$$2HGFVOC$$aCreative Commons Attribution CC BY 4.0
000857542 915__ $$0StatID:(DE-HGF)1150$$2StatID$$aDBCoverage$$bCurrent Contents - Physical, Chemical and Earth Sciences
000857542 915__ $$0StatID:(DE-HGF)9905$$2StatID$$aIF >= 5$$bATMOS CHEM PHYS : 2017
000857542 915__ $$0StatID:(DE-HGF)0501$$2StatID$$aDBCoverage$$bDOAJ Seal
000857542 915__ $$0StatID:(DE-HGF)0500$$2StatID$$aDBCoverage$$bDOAJ
000857542 915__ $$0StatID:(DE-HGF)0110$$2StatID$$aWoS$$bScience Citation Index
000857542 915__ $$0StatID:(DE-HGF)0111$$2StatID$$aWoS$$bScience Citation Index Expanded
000857542 915__ $$0StatID:(DE-HGF)0150$$2StatID$$aDBCoverage$$bWeb of Science Core Collection
000857542 915__ $$0StatID:(DE-HGF)0510$$2StatID$$aOpenAccess
000857542 915__ $$0StatID:(DE-HGF)0030$$2StatID$$aPeer Review$$bDOAJ : Peer review
000857542 915__ $$0StatID:(DE-HGF)0100$$2StatID$$aJCR$$bATMOS CHEM PHYS : 2017
000857542 915__ $$0StatID:(DE-HGF)0310$$2StatID$$aDBCoverage$$bNCBI Molecular Biology Database
000857542 915__ $$0StatID:(DE-HGF)0300$$2StatID$$aDBCoverage$$bMedline
000857542 915__ $$0StatID:(DE-HGF)0199$$2StatID$$aDBCoverage$$bClarivate Analytics Master Journal List
000857542 9201_ $$0I:(DE-Juel1)IEK-8-20101013$$kIEK-8$$lTroposphäre$$x0
000857542 9801_ $$aFullTexts
000857542 980__ $$ajournal
000857542 980__ $$aVDB
000857542 980__ $$aUNRESTRICTED
000857542 980__ $$aI:(DE-Juel1)IEK-8-20101013
000857542 981__ $$aI:(DE-Juel1)ICE-3-20101013