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    Academic Journals

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• The effect of (NH.sub.4).sub.2SO.sub.4 on the freezing properties of non-mineral dust ice-nucleating substances of atmospheric relevance.

  Authors:Soleil E. Worthy, Anand Kumar, Yu Xi, Jingwei Yun, Jessie Chen, Cuishan Xu, et al.From:Atmospheric Chemistry and Physics (Vol. 21, Issue 19) Peer-Reviewed

  Oct. 4, 2021450 words Article A wide range of materials including mineral dust, soil dust, and bioaerosols have been shown to act as ice nuclei in the atmosphere. During atmospheric transport, these materials can become coated with inorganic and...

• Heterogeneous ice nucleation ability of aerosol particles generated from Arctic sea surface microlayer and surface seawater samples at cirrus temperatures.

  Authors:Robert Wagner, Luisa Ickes, Allan K. Bertram, Nora Els, Elena Gorokhova, Ottmar Möhler, et al.From:Atmospheric Chemistry and Physics (Vol. 21, Issue 18) Peer-Reviewed

  Sept. 21, 2021426 words Article Sea spray aerosol particles are a recognised type of ice-nucleating particles under mixed-phase cloud conditions. Entities that are responsible for the heterogeneous ice nucleation ability include intact or fragmented...

• Liquid-liquid phase separation in organic particles containing one and two organic species: importance of the average O : C

  Authors:Mijung Song, Suhan Ham, Ryan J. Andrews, Yuan You, and Allan K. BertramFrom:Atmospheric Chemistry and Physics (Vol. 18, Issue 16) Peer-Reviewed

  Aug. 22, 2018278 words Author abstract, Bri...

  Recently, experimental studies have shown that liquid-liquid phase separation (LLPS) can occur in organic particles free of inorganic salts. Most of these studies used organic particles consisting of secondary...

• Ice-nucleating ability of aerosol particles and possible sources at three coastal marine sites

  Authors:Meng Si, Victoria E. Irish, Ryan H. Mason, Sarah J. Hanna, Luis A. Ladino, Jacqueline D. Yakobi-Hancock, et al.From:Atmospheric Chemistry and Physics (Vol. 18, Issue 21) Peer-Reviewed

  Nov. 1, 2018351 words Author abstract, Bri...

  Despite the importance of ice-nucleating particles (INPs) for climate and precipitation, our understanding of these particles is far from complete. Here, we investigated INPs at three coastal marine sites in Canada,...

• Concentrations, composition, and sources of ice-nucleating particles in the Canadian High Arctic during spring 2016

  Authors:Meng Si, Erin Evoy, Jingwei Yun, Yu Xi, Sarah J. Hanna, Alina Chivulescu, et al.From:Atmospheric Chemistry and Physics (Vol. 19, Issue 5) Peer-Reviewed

  Mar. 8, 2019331 words Author abstract, Bri...

  Modelling studies suggest that the climate and the hydrological cycle are sensitive to the concentrations of ice-nucleating particles (INPs). However, the concentrations, composition, and sources of INPs in the...

• Viscosities, diffusion coefficients, and mixing times of intrinsic fluorescent organic molecules in brown limonene secondary organic aerosol and tests of the Stokes-Einstein equation

  Authors:Dagny A. Ullmann, Mallory L. Hinks, Adrian M. Maclean, Christopher L. Butenhoff, James W. Grayson, Kelley Barsanti, et al.From:Atmospheric Chemistry and Physics (Vol. 19, Issue 3) Peer-Reviewed

  Feb. 4, 2019374 words Author abstract, Bri...

  Viscosities and diffusion rates of organics within secondary organic aerosol (SOA) remain uncertain. Using the bead-mobility technique, we measured viscosities as a function of water activity (a.sub.w) of SOA...

• Ice-nucleating particles in a coastal tropical site

  Authors:Luis A. Ladino, Graciela B. Raga, Harry Alvarez-Ospina, Manuel A. Andino-Enriquez, Irma Rosas, Leticia Martinez, et al.From:Atmospheric Chemistry and Physics (Vol. 19, Issue 9) Peer-Reviewed

  May 9, 2019379 words Author abstract, Bri...

  Atmospheric aerosol particles that can nucleate ice are referred to as ice-nucleating particles (INPs). Recent studies have confirmed that aerosol particles emitted by the oceans can act as INPs. This very relevant...

• Liquid-liquid phase separation and viscosity within secondary organic aerosol generated from diesel fuel vapors.

  Authors:Mijung Song, Adrian M. Maclean, Yuanzhou Huang, Natalie R. Smith, Sandra L. Blair, Julia Laskin, et al.From:Atmospheric Chemistry and Physics (Vol. 19, Issue 19) Peer-Reviewed

  Oct. 8, 2019387 words Report, Author abstr...

  Information on liquid-liquid phase separation (LLPS) and viscosity (or diffusion) within secondary organic aerosol (SOA) is needed to improve predictions of particle size, mass, reactivity, and cloud nucleating...

• Measurement report: Ice nucleating abilities of biomass burning, African dust, and sea spray aerosol particles over the Yucatán Peninsula.

  Authors:Fernanda Córdoba, Carolina Ramírez-Romero, Diego Cabrera, Graciela B. Raga, Javier Miranda, Harry Alvarez-Ospina, et al.From:Atmospheric Chemistry and Physics (Vol. 21, Issue 6) Peer-Reviewed

  Mar. 23, 2021303 words Brief article Most precipitation from deep clouds over the continents and in the intertropical convergence zone is strongly influenced by the presence of ice crystals whose formation requires the presence of ice nucleating particles...

• Overview paper: New insights into aerosol and climate in the Arctic

  Authors:Jonathan P. D. Abbatt, W. Richard Leaitch, Amir A. Aliabadi, Allan K. Bertram, Jean-Pierre Blanchet, Aude Boivin-Rioux, et al.From:Atmospheric Chemistry and Physics (Vol. 19, Issue 4) Peer-Reviewed

  Feb. 28, 2019536 words Brief article, Repor...

  Motivated by the need to predict how the Arctic atmosphere will change in a warming world, this article summarizes recent advances made by the research consortium NETCARE (Network on Climate and Aerosols: Addressing...

• OH, H[O.sub.2], and ozone gaseous diffusion coefficients

  Authors:Andrey V. Ivanov, Sofia Trakhtenberg, Allan K. Bertram, Yulli M. Gershenzon, and Mario J. MolinaFrom:Journal of Physical Chemistry A (Vol. 111, Issue 9) Peer-Reviewed

  Mar. 8, 200766 words Article

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• A molecular mechanism of ice nucleation on model AgI surfaces

  Authors:Stephen A. Zielke, Allan K. Bertram, and Grenfell N. PateyFrom:Journal of Physical Chemistry B (Vol. 119, Issue 29) Peer-Reviewed

  July 23, 2015 Report

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• A marine biogenic source of atmospheric ice-nucleating particles

  Authors:Theodore W. Wilson, Luis A. Ladino, Peter A. Alpert, Mark N. Breckels, Ian M. Brooks, Jo Browse, et al.From:Nature (Vol. 525, Issue 7568) Peer-Reviewed

  Sept. 10, 20158,706 words Report 1530LThe amount of ice present in clouds can affect cloud lifetime, precipitation and radiative properties (1,2). The formation of ice in clouds is facilitated by the presence of airborne ice-nucleating particles (1,2). Sea...

• Liquid-liquid phase separation and morphologies in organic particles consisting of α-pinene and β-caryophyllene ozonolysis products and mixtures with commercially available organic compounds.

  Authors:Young-Chul Song, Ariana G. Bé, Scot T. Martin, Franz M. Geiger, Allan K. Bertram, Regan J. Thomson, et al.From:Atmospheric Chemistry and Physics (Vol. 20, Issue 19) Peer-Reviewed

  Oct. 2, 2020289 words Brief article Liquid-liquid phase separation (LLPS) in organic aerosol particles can impact several properties of atmospheric particulate matter, such as cloud condensation nuclei (CCN) properties, optical properties, and...

• Observations of atmospheric chemical deposition to high Arctic snow

  Authors:Katrina M. Macdonald, Sangeeta Sharma, Desiree Toom, Alina Chivulescu, Sarah Hanna, Allan K. Bertram, et al.From:Atmospheric Chemistry and Physics (Vol. 17, Issue 9) Peer-Reviewed

  May 10, 2017214 words Author abstract, Bri... Rapidly rising temperatures and loss of snow and ice cover have demonstrated the unique vulnerability of the high Arctic to climate change. There are major uncertainties in modelling the chemical depositional and...

• The effect of hydroxyl functional groups and molar mass on the viscosity of non-crystalline organic and organic-water particles

  Authors:James W. Grayson, Erin Evoy, Mijung Song, Yangxi Chu, Adrian Maclean, Allena Nguyen, et al.From:Atmospheric Chemistry and Physics (Vol. 17, Issue 13) Peer-Reviewed

  July 13, 2017419 words Brief article, Repor... The viscosities of three polyols and three saccharides, all in the non-crystalline state, have been studied. Two of the polyols (2-methyl-1,4-butanediol and 1,2,3-butanetriol) were studied under dry conditions, the...

• Size-resolved mixing state of black carbon in the Canadian high Arctic and implications for simulated direct radiative effect

  Authors:John K. Kodros, Sarah J. Hanna, Allan K. Bertram, W. Richard Leaitch, Hannes Schulz, Andreas B. Herber, et al.From:Atmospheric Chemistry and Physics (Vol. 18, Issue 15) Peer-Reviewed

  Aug. 14, 2018383 words Author abstract, Bri...

  Transport of anthropogenic aerosol into the Arctic in the spring months has the potential to affect regional climate; however, modeling estimates of the aerosol direct radiative effect (DRE) are sensitive to...

• Liquid-liquid phase separation in particles containing secondary organic material free of inorganic salts

  Authors:Mijung Song, Pengfei Liu, Scot T. Martin, and Allan K. BertramFrom:Atmospheric Chemistry and Physics (Vol. 17, Issue 18) Peer-Reviewed

  Sept. 25, 2017238 words Author abstract, Bri... Particles containing secondary organic material (SOM) are ubiquitous in the atmosphere and play a role in climate and air quality. Recently, research has shown that liquid-liquid phase separation (LLPS) occurs at high...

• The reaction probability of OH on organic surfaces of tropospheric interest

  Authors:Allan K. Bertram, Andrey V. Ivanov, Martin Hunter, Luisa t. Molina, and Mario J. MolinaFrom:Journal of Physical Chemistry A (Vol. 105, Issue 41) Peer-Reviewed

  Oct. 18, 2001 Article

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• Crystallization of aqueous inorganic-malonic acid particles: Nucleation rates, dependence on size, and dependence on the ammonium-to-sulfate ratio

  Authors:Matthew T. Parsons, Jenna L. Riffell, and Allan K. BertramFrom:Journal of Physical Chemistry A (Vol. 110, Issue 26) Peer-Reviewed

  July 6, 200652 words Article

   Abstract Only