K
Katja Dzepina
Researcher at Michigan Technological University
Publications - 29
Citations - 9070
Katja Dzepina is an academic researcher from Michigan Technological University. The author has contributed to research in topics: Aerosol & Aerosol mass spectrometry. The author has an hindex of 19, co-authored 26 publications receiving 8116 citations. Previous affiliations of Katja Dzepina include Cooperative Institute for Research in Environmental Sciences & University of Colorado Boulder.
Papers
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Journal ArticleDOI
Evolution of Organic Aerosols in the Atmosphere
Jose L. Jimenez,Manjula R. Canagaratna,Neil M. Donahue,André S. H. Prévôt,Qi Zhang,Jesse H. Kroll,Peter F. DeCarlo,James Allan,Hugh Coe,Nga L. Ng,Allison C. Aiken,Kenneth S. Docherty,Ingrid M. Ulbrich,Andrew P. Grieshop,Allen L. Robinson,Jonathan Duplissy,Jared D. Smith,Kevin R. Wilson,V. A. Lanz,Christoph Hueglin,Yele Sun,Yele Sun,Jian Tian,Ari Laaksonen,Tomi Raatikainen,Tomi Raatikainen,J. Rautiainen,Petri Vaattovaara,Mikael Ehn,Markku Kulmala,Markku Kulmala,Jason Tomlinson,Don R. Collins,Michael J. Cubison,Edward J. Dunlea,J. A. Huffman,Timothy B. Onasch,M. R. Alfarra,Paul I. Williams,Keith Bower,Yutaka Kondo,Johannes Schneider,Frank Drewnick,Stephan Borrmann,S. Weimer,Kenneth L. Demerjian,D. Salcedo,L. Cottrell,Robert J. Griffin,Akinori Takami,Takao Miyoshi,Shiro Hatakeyama,Akio Shimono,J. Y. Sun,Y. M. Zhang,Katja Dzepina,Joel R. Kimmel,Donna Sueper,J. T. Jayne,Scott C. Herndon,A. Trimborn,Leah R. Williams,Ezra C. Wood,Ann M. Middlebrook,Charles E. Kolb,Urs Baltensperger,Douglas R. Worsnop +66 more
TL;DR: A unifying model framework describing the atmospheric evolution of OA that is constrained by high–time-resolution measurements of its composition, volatility, and oxidation state is presented, which can serve as a basis for improving parameterizations in regional and global models.
Journal ArticleDOI
Ubiquity and dominance of oxygenated species in organic aerosols in anthropogenically-influenced Northern Hemisphere midlatitudes
Qi Zhang,Jose L. Jimenez,Manjula R. Canagaratna,James Allan,Hugh Coe,Ingrid M. Ulbrich,M. R. Alfarra,Akinori Takami,Ann M. Middlebrook,Yele Sun,Katja Dzepina,Edward J. Dunlea,Kenneth S. Docherty,Peter F. DeCarlo,D. Salcedo,Timothy B. Onasch,J. T. Jayne,Takao Miyoshi,A. Shimono,Shiro Hatakeyama,Nobuyuki Takegawa,Yutaka Kondo,Johannes Schneider,Frank Drewnick,Stephan Borrmann,Silke Weimer,Kenneth L. Demerjian,Paul I. Williams,Keith Bower,Roya Bahreini,Roya Bahreini,L. Cottrell,Robert J. Griffin,J. Rautiainen,J. Y. Sun,Yaping Zhang,D. R. Worsnop +36 more
TL;DR: In this article, organic aerosol data acquired by the AMS in 37 field campaigns were deconvolved into hydrocarbon-like OA (HOA) and several types of oxygenated OA components.
Journal ArticleDOI
Secondary organic aerosol formation from anthropogenic air pollution: Rapid and higher than expected
Rainer Volkamer,Rainer Volkamer,Jose L. Jimenez,Federico San Martini,Federico San Martini,Katja Dzepina,Qi Zhang,Qi Zhang,D. Salcedo,Luisa T. Molina,Douglas R. Worsnop,Mario J. Molina,Mario J. Molina +12 more
TL;DR: This paper showed that reactive anthropogenic VOCs (AVOCs) produce much larger amounts of SOA than these models predict, even shortly after sunrise, and a significant fraction of the excess SOA is formed from first-generation AVOC oxidation products.
Secondary Organic Aerosol Formation from Anthropogenic Air Pollution: Rapid and Higher than Expected
Jose L. Jimenez,Rainer Volkamer,F. M. San Martini,Katja Dzepina,Qi Zhang,Ingrid M. Ulbrich,D. Salcedo,D. R. Worsnop,Luisa T. Molina +8 more
TL;DR: This paper showed that reactive anthropogenic VOCs (AVOCs) produce much larger amounts of SOA than these models predict, even shortly after sunrise, and a significant fraction of the excess SOA is formed from first-generation AVOC oxidation products.
Journal ArticleDOI
Characterization of ambient aerosols in Mexico City during the MCMA-2003 campaign with Aerosol Mass Spectrometry: results from the CENICA Supersite
D. Salcedo,D. Salcedo,Timothy B. Onasch,Katja Dzepina,Manjula R. Canagaratna,Qi Zhang,Qi Zhang,J. A. Huffman,Peter F. DeCarlo,J. T. Jayne,P. Mortimer,D. R. Worsnop,Charles E. Kolb,K. S. Johnson,B. Zuberi,B. Zuberi,Linsey C. Marr,Rainer Volkamer,Rainer Volkamer,Luisa T. Molina,Mario J. Molina,B. Cardenas,R. M. Bernabé,C. Marquez,Jeffrey S. Gaffney,Nancy A. Marley,Alexander Laskin,Vaithiyalingam Shutthanandan,Yumei Xie,William H. Brune,R. Lesher,T. Shirley,Jose L. Jimenez +32 more
TL;DR: An Aerodyne Aerosol Mass Spectrometer (AMS) was deployed at the CENICA Supersite, during the Mexico City metropolitan area field study (MCMA-2003) from 31 March-4 May 2003 to investigate particle concentrations, sources, and processes as discussed by the authors.