Zobrazeno 1 - 10
of 403
pro vyhledávání: '"A. K. Bertram"'
Publikováno v:
Atmospheric Chemistry and Physics, Vol 24, Pp 13341-13359 (2024)
The viscosity of aerosol particles determines the critical mixing time of gas–particle partitioning of volatile compounds in the atmosphere. The partitioning of the semi-volatile ammonium nitrate (NH4NO3) might alter the viscosity of highly viscous
Externí odkaz:
https://doaj.org/article/dbfd2404da3c4d8f8edfaf9926f3de55
Autor:
F. Mahrt, L. Peng, J. Zaks, Y. Huang, P. E. Ohno, N. R. Smith, F. K. A. Gregson, Y. Qin, C. L. Faiola, S. T. Martin, S. A. Nizkorodov, M. Ammann, A. K. Bertram
Publikováno v:
Atmospheric Chemistry and Physics, Vol 22, Pp 13783-13796 (2022)
Secondary organic aerosol (SOA) constitutes a large fraction of atmospheric aerosol. To assess its impacts on climate and air pollution, knowledge of the number of phases in internal mixtures of different SOA types is required. Atmospheric models oft
Externí odkaz:
https://doaj.org/article/923b1c33517241d280ac5da33aadcbe0
Publikováno v:
Atmospheric Measurement Techniques, Vol 15, Pp 5545-5561 (2022)
The viscosity of secondary organic aerosol (SOA) is needed to improve predictions of air quality, climate, and atmospheric chemistry. Many techniques have been developed to measure the viscosity of micrometer-sized materials at room temperature; howe
Externí odkaz:
https://doaj.org/article/eedaeb33d40742fab755e51941b0b84e
Publikováno v:
Atmospheric Chemistry and Physics, Vol 21, Pp 14631-14648 (2021)
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 organic solutes which may impact t
Externí odkaz:
https://doaj.org/article/3252e66cd8cf4a0aad2bde07ac494ad3
Autor:
R. Wagner, L. Ickes, A. K. Bertram, N. Els, E. Gorokhova, O. Möhler, B. J. Murray, N. S. Umo, M. E. Salter
Publikováno v:
Atmospheric Chemistry and Physics, Vol 21, Pp 13903-13930 (2021)
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 cells of marine microorganisms a
Externí odkaz:
https://doaj.org/article/04714451c59e4151b37ea5122f6a72fe
Autor:
F. Córdoba, C. Ramírez-Romero, D. Cabrera, G. B. Raga, J. Miranda, H. Alvarez-Ospina, D. Rosas, B. Figueroa, J. S. Kim, J. Yakobi-Hancock, T. Amador, W. Gutierrez, M. García, A. K. Bertram, D. Baumgardner, L. A. Ladino
Publikováno v:
Atmospheric Chemistry and Physics, Vol 21, Pp 4453-4470 (2021)
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 (INPs). Although there are a la
Externí odkaz:
https://doaj.org/article/83a3d01e211d43c0b2e90273a32de840
Publikováno v:
Atmospheric Chemistry and Physics, Vol 20, Pp 11263-11273 (2020)
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 gas-to-particle partitioning. Yet, our u
Externí odkaz:
https://doaj.org/article/2c48c530afa84b679680f0020e54ad77
Autor:
W. R. Leaitch, J. K. Kodros, M. D. Willis, S. Hanna, H. Schulz, E. Andrews, H. Bozem, J. Burkart, P. Hoor, F. Kolonjari, J. A. Ogren, S. Sharma, M. Si, K. von Salzen, A. K. Bertram, A. Herber, J. P. D. Abbatt, J. R. Pierce
Publikováno v:
Atmospheric Chemistry and Physics, Vol 20, Pp 10545-10563 (2020)
Despite the potential importance of black carbon (BC) for radiative forcing of the Arctic atmosphere, vertically resolved measurements of the particle light scattering coefficient (σsp) and light absorption coefficient (σap) in the springtime Arcti
Externí odkaz:
https://doaj.org/article/d3ea359ec1ad4c66b3e04b6e8e9b1aa5
Autor:
L. Ickes, G. C. E. Porter, R. Wagner, M. P. Adams, S. Bierbauer, A. K. Bertram, M. Bilde, S. Christiansen, A. M. L. Ekman, E. Gorokhova, K. Höhler, A. A. Kiselev, C. Leck, O. Möhler, B. J. Murray, T. Schiebel, R. Ullrich, M. E. Salter
Publikováno v:
Atmospheric Chemistry and Physics, Vol 20, Pp 11089-11117 (2020)
In recent years, sea spray as well as the biological material it contains has received increased attention as a source of ice-nucleating particles (INPs). Such INPs may play a role in remote marine regions, where other sources of INPs are scarce or a
Externí odkaz:
https://doaj.org/article/fe55062da0404943ba6b0dcb0f0dc0f2
Autor:
M. Song, A. M. Maclean, Y. Huang, N. R. Smith, S. L. Blair, J. Laskin, A. Laskin, W.-S. W. DeRieux, Y. Li, M. Shiraiwa, S. A. Nizkorodov, A. K. Bertram
Publikováno v:
Atmospheric Chemistry and Physics, Vol 19, Pp 12515-12529 (2019)
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 properties in the atmosphere. Here we
Externí odkaz:
https://doaj.org/article/b52d5d50ee5748539c15c16655af41ec