T
Timothy M. VanReken
Researcher at Washington State University
Publications - 41
Citations - 1663
Timothy M. VanReken is an academic researcher from Washington State University. The author has contributed to research in topics: Aerosol & Cloud condensation nuclei. The author has an hindex of 19, co-authored 41 publications receiving 1521 citations. Previous affiliations of Timothy M. VanReken include National Science Foundation & California Institute of Technology.
Papers
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Journal ArticleDOI
Chemical composition of atmospheric nanoparticles formed from nucleation in Tecamac, Mexico : Evidence for an important role for organic species in nanoparticle growth
James N. Smith,Matthew J. Dunn,Timothy M. VanReken,Timothy M. VanReken,Kenjiro Iida,Mark R. Stolzenburg,Peter H. McMurry,L. G. Huey +7 more
TL;DR: In this paper, the authors report Thermal Desorption Chemical Ionization Mass Spectrometer (TDCIMS) measurements of the composition of ambient 10-33 nm diameter particles formed from nucleation on 16 March 2006 in Tecamac, Mexico during the Megacity Initiative: Local and Global Research Observations (MILAGRO) field study.
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Aerosol–cloud drop concentration closure in warm cumulus
William C. Conant,Timothy M. VanReken,Tracey A. Rissman,Varuntida Varutbangkul,Haflidi Jonsson,Athanasios Nenes,Jose L. Jimenez,A. E. Delia,Roya Bahreini,Gregory Roberts,Richard C. Flagan,John H. Seinfeld +11 more
TL;DR: In this paper, a detailed cloud activation parcel model, which predicts cloud drop concentration using observed aerosol concentration, size distribution, cloud updraft velocity, and atmospheric thermodynamic state, is evaluated against observations.
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Evidence for the Predominance of Mid-Tropospheric Aerosols as Subtropical Anvil Cloud Nuclei
Ann M. Fridlind,Andrew S. Ackerman,Eric J. Jensen,Andrew J. Heymsfield,Michael R. Poellot,David E. Stevens,Donghai Wang,Larry M. Miloshevich,Darrel Baumgardner,R. Paul Lawson,James C. Wilson,Richard C. Flagan,John H. Seinfeld,Haflidi Jonsson,Timothy M. VanReken,Varuntida Varutbangkul,Tracey A. Rissman +16 more
TL;DR: It is found that most anvil crystals form on mid-tropospheric rather than boundary-layer aerosols, which defies conventional wisdom and suggests that distant pollution sources may have a greater effect on anvil clouds than do local sources.
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Cloud condensation nucleus activation properties of biogenic secondary organic aerosol
TL;DR: In this article, the authors investigated the relationship between particle dry diameter and critical supersaturation for single-component organic aerosols, and found that the relationship was more sensitive to particle diameter than was previously reported.
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Toward aerosol/cloud condensation nuclei (CCN) closure during CRYSTAL‐FACE
Timothy M. VanReken,Tracey A. Rissman,Gregory Roberts,Varuntida Varutbangkul,Haflidi Jonsson,Richard C. Flagan,John H. Seinfeld +6 more
TL;DR: In this article, a simplified aerosol/CCNCCN closure analysis was performed using Kohler theory for predicting a CCN concentration using ammonium sulfate aerosol composition.