Hauptseite > Publikationsdatenbank > Enhanced particle formation and growth due to mixing processes in the tropopause region > print

001     28900
005     20240709074438.0
024 7 _ |2 DOI
|a 10.1016/S1352-2310(02)00976-7
024 7 _ |2 WOS
|a WOS:000181260700004
037 _ _ |a PreJuSER-28900
041 _ _ |a eng
082 _ _ |a 550
084 _ _ |2 WoS
|a Environmental Sciences
084 _ _ |2 WoS
|a Meteorology & Atmospheric Sciences
100 1 _ |a Khosrawi, F.
|b 0
|u FZJ
|0 P:(DE-Juel1)VDB744
245 _ _ |a Enhanced particle formation and growth due to mixing processes in the tropopause region
260 _ _ |a Amsterdam [u.a.]
|b Elsevier Science
|c 2003
300 _ _ |a 903 - 910
336 7 _ |a Journal Article
|0 PUB:(DE-HGF)16
|2 PUB:(DE-HGF)
336 7 _ |a Output Types/Journal article
|2 DataCite
336 7 _ |a Journal Article
|0 0
|2 EndNote
336 7 _ |a ARTICLE
|2 BibTeX
336 7 _ |a JOURNAL_ARTICLE
|2 ORCID
336 7 _ |a article
|2 DRIVER
440 _ 0 |a Atmospheric Environment
|x 1352-2310
|0 697
|v 37
500 _ _ |a Record converted from VDB: 12.11.2012
520 _ _ |a Enhancement of the binary homogeneous nucleation rate of H2SO4 and H2O and condensation of H2O and HNO3 on liquid sulphate aerosol particles due to mixing processes in the tropopause region were investigated by conducting theoretical studies and by using a section aerosol box model. If two air parcels with a large initial temperature and humidity difference are mixed with each other the nucleation rate within the resulting air parcel will be enhanced. This is due to the curvature of the saturation vapour pressure curve. The theoretical studies show that in the tropopause region enhancements of the nucleation rate of up to five orders of magnitude can occur. Since the mixing causes strong supersaturations also the condensation rate will be enhanced, especially for HNO3. The simulation with the sectional aerosol box model shows that after the mixing of two air parcels up to 40 wt% of HNO3 is taken up by the smallest aerosol particles. Since the initial air parcels are initialized with 0 wt% HNO3 this corresponds to a very strong enhancement. Measurements during the STREAM 1998 campaign show,, an entrainment of stratospheric air into the troposphere during the flight on 15 July leading to a production of new particles. Box model studies reproduce fairly well the measured number of newly formed particles. (C) 2003 Elsevier Science Ltd. All rights reserved.
536 _ _ |a Chemie und Dynamik der Geo-Biosphäre
|c U01
|2 G:(DE-HGF)
|0 G:(DE-Juel1)FUEK257
|x 0
588 _ _ |a Dataset connected to Web of Science
650 _ 7 |a J
|2 WoSType
653 2 0 |2 Author
|a aerosol models
653 2 0 |2 Author
|a nucleation
653 2 0 |2 Author
|a condensation
653 2 0 |2 Author
|a mixing
700 1 _ |a Konopka, Paul
|b 1
|u FZJ
|0 P:(DE-Juel1)129130
773 _ _ |a 10.1016/S1352-2310(02)00976-7
|g Vol. 37, p. 903 - 910
|p 903 - 910
|q 37<903 - 910
|0 PERI:(DE-600)1499889-0
|t Atmospheric environment
|v 37
|y 2003
|x 1352-2310
856 7 _ |u http://dx.doi.org/10.1016/S1352-2310(02)00976-7
909 C O |o oai:juser.fz-juelich.de:28900
|p VDB
913 1 _ |k U01
|v Chemie und Dynamik der Geo-Biosphäre
|l Chemie und Dynamik der Geo-Biosphäre
|b Environment (Umwelt)
|0 G:(DE-Juel1)FUEK257
|x 0
914 1 _ |y 2003
915 _ _ |0 StatID:(DE-HGF)0010
|a JCR/ISI refereed
920 1 _ |k ICG-I
|l Stratosphäre
|d 31.12.2006
|g ICG
|0 I:(DE-Juel1)VDB47
|x 0
970 _ _ |a VDB:(DE-Juel1)23986
980 _ _ |a VDB
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980 _ _ |a journal
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980 _ _ |a UNRESTRICTED
981 _ _ |a I:(DE-Juel1)ICE-4-20101013
981 _ _ |a I:(DE-Juel1)IEK-7-20101013

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