Zobrazeno 1 - 10
of 519
pro vyhledávání: '"D A, Day"'
Autor:
T. Pan, A. T. Lambe, W. Hu, Y. He, M. Hu, H. Zhou, X. Wang, Q. Hu, H. Chen, Y. Zhao, Y. Huang, D. R. Worsnop, Z. Peng, M. A. Morris, D. A. Day, P. Campuzano-Jost, J.-L. Jimenez, S. H. Jathar
Publikováno v:
Atmospheric Measurement Techniques, Vol 17, Pp 4915-4939 (2024)
Oxidation flow reactors (OFRs) have been extensively utilized to examine the formation of secondary organic aerosol (SOA). However, the UV lamps typically employed to initiate the photochemistry in OFRs can result in an elevated reactor temperature w
Externí odkaz:
https://doaj.org/article/c1190ee91a534554a59f44ffbcdedf73
Autor:
M. K. Schueneman, D. A. Day, D. Kim, P. Campuzano-Jost, S. Yun, M. P. DeVault, A. C. Ziola, P. J. Ziemann, J. L. Jimenez
Publikováno v:
Aerosol Research, Vol 2, Pp 59-76 (2024)
Obtaining quantitative information for molecular species present in aerosols from real-time mass spectrometers such as an extractive electrospray time-of-flight mass spectrometer (EESI) and an aerosol mass spectrometer (AMS) can be challenging. Typic
Externí odkaz:
https://doaj.org/article/d262b465f4474f41a1db12b8d2643814
Publikováno v:
Atmospheric Measurement Techniques, Vol 17, Pp 1545-1559 (2024)
Previous studies have demonstrated volatility-dependent absorption of gas-phase volatile organic compounds (VOCs) to Teflon and other polymers. Polymer–VOC interactions are relevant for atmospheric chemistry sampling, as gas–wall partitioning in
Externí odkaz:
https://doaj.org/article/a5f4d0cd2db440b29bd92019a6f084ea
Autor:
G. I. Gkatzelis, M. M. Coggon, C. E. Stockwell, R. S. Hornbrook, H. Allen, E. C. Apel, M. M. Bela, D. R. Blake, I. Bourgeois, S. S. Brown, P. Campuzano-Jost, J. M. St. Clair, J. H. Crawford, J. D. Crounse, D. A. Day, J. P. DiGangi, G. S. Diskin, A. Fried, J. B. Gilman, H. Guo, J. W. Hair, H. S. Halliday, T. F. Hanisco, R. Hannun, A. Hills, L. G. Huey, J. L. Jimenez, J. M. Katich, A. Lamplugh, Y. R. Lee, J. Liao, J. Lindaas, S. A. McKeen, T. Mikoviny, B. A. Nault, J. A. Neuman, J. B. Nowak, D. Pagonis, J. Peischl, A. E. Perring, F. Piel, P. S. Rickly, M. A. Robinson, A. W. Rollins, T. B. Ryerson, M. K. Schueneman, R. H. Schwantes, J. P. Schwarz, K. Sekimoto, V. Selimovic, T. Shingler, D. J. Tanner, L. Tomsche, K. T. Vasquez, P. R. Veres, R. Washenfelder, P. Weibring, P. O. Wennberg, A. Wisthaler, G. M. Wolfe, C. C. Womack, L. Xu, K. Ball, R. J. Yokelson, C. Warneke
Publikováno v:
Atmospheric Chemistry and Physics, Vol 24, Pp 929-956 (2024)
Extensive airborne measurements of non-methane organic gases (NMOGs), methane, nitrogen oxides, reduced nitrogen species, and aerosol emissions from US wild and prescribed fires were conducted during the 2019 NOAA/NASA Fire Influence on Regional to G
Externí odkaz:
https://doaj.org/article/61e617bdf6914661ade67d9b6c2b36f6
Autor:
S. Jeon, M. J. Walker, D. T. Sueper, D. A. Day, A. V. Handschy, J. L. Jimenez, B. J. Williams
Publikováno v:
Atmospheric Measurement Techniques, Vol 16, Pp 6075-6095 (2023)
The Aerodyne Aerosol Mass Spectrometer (AMS) and Aerosol Chemical Speciation Monitor (ACSM) are the most widely applied tools for in situ chemical analysis of the non-refractory bulk composition of fine atmospheric particles. The mass spectra (MS) of
Externí odkaz:
https://doaj.org/article/fe33f05353884959ae6a9da2e518e426
Autor:
D. Kim, C. Cho, S. Jeong, S. Lee, B. A. Nault, P. Campuzano-Jost, D. A. Day, J. C. Schroder, J. L. Jimenez, R. Volkamer, D. R. Blake, A. Wisthaler, A. Fried, J. P. DiGangi, G. S. Diskin, S. E. Pusede, S. R. Hall, K. Ullmann, L. G. Huey, D. J. Tanner, J. Dibb, C. J. Knote, K.-E. Min
Publikováno v:
Atmospheric Chemistry and Physics, Vol 22, Pp 805-821 (2022)
Glyoxal (CHOCHO), the simplest dicarbonyl in the troposphere, is a potential precursor for secondary organic aerosol (SOA) and brown carbon (BrC) affecting air quality and climate. The airborne measurement of CHOCHO concentrations during the KORUS-AQ
Externí odkaz:
https://doaj.org/article/24f60ef7d4104094a62a1beee08c6bd1
Autor:
D. A. Day, P. Campuzano-Jost, B. A. Nault, B. B. Palm, W. Hu, H. Guo, P. J. Wooldridge, R. C. Cohen, K. S. Docherty, J. A. Huffman, S. S. de Sá, S. T. Martin, J. L. Jimenez
Publikováno v:
Atmospheric Measurement Techniques, Vol 15, Pp 459-483 (2022)
Organic nitrate (RONO2) formation in the atmosphere represents a sink of NOx (NOx = NO + NO2) and termination of the NOx/HOx (HOx = HO2 + OH) ozone formation and radical propagation cycles, can act as a NOx reservoir transporting reactive nitrogen, a
Externí odkaz:
https://doaj.org/article/a18179cd856c4fbb9e55641775d12b0a
Autor:
C. A. Brock, K. D. Froyd, M. Dollner, C. J. Williamson, G. Schill, D. M. Murphy, N. J. Wagner, A. Kupc, J. L. Jimenez, P. Campuzano-Jost, B. A. Nault, J. C. Schroder, D. A. Day, D. J. Price, B. Weinzierl, J. P. Schwarz, J. M. Katich, S. Wang, L. Zeng, R. Weber, J. Dibb, E. Scheuer, G. S. Diskin, J. P. DiGangi, T. Bui, J. M. Dean-Day, C. R. Thompson, J. Peischl, T. B. Ryerson, I. Bourgeois, B. C. Daube, R. Commane, S. C. Wofsy
Publikováno v:
Atmospheric Chemistry and Physics, Vol 21, Pp 15023-15063 (2021)
In situ measurements of aerosol microphysical, chemical, and optical properties were made during global-scale flights from 2016–2018 as part of the Atmospheric Tomography Mission (ATom). The NASA DC-8 aircraft flew from ∼ 84∘ N to ∼ 86∘ S l
Externí odkaz:
https://doaj.org/article/b30fdb8716f74ea1840853dee12c509c
Autor:
B. A. Nault, D. S. Jo, B. C. McDonald, P. Campuzano-Jost, D. A. Day, W. Hu, J. C. Schroder, J. Allan, D. R. Blake, M. R. Canagaratna, H. Coe, M. M. Coggon, P. F. DeCarlo, G. S. Diskin, R. Dunmore, F. Flocke, A. Fried, J. B. Gilman, G. Gkatzelis, J. F. Hamilton, T. F. Hanisco, P. L. Hayes, D. K. Henze, A. Hodzic, J. Hopkins, M. Hu, L. G. Huey, B. T. Jobson, W. C. Kuster, A. Lewis, M. Li, J. Liao, M. O. Nawaz, I. B. Pollack, J. Peischl, B. Rappenglück, C. E. Reeves, D. Richter, J. M. Roberts, T. B. Ryerson, M. Shao, J. M. Sommers, J. Walega, C. Warneke, P. Weibring, G. M. Wolfe, D. E. Young, B. Yuan, Q. Zhang, J. A. de Gouw, J. L. Jimenez
Publikováno v:
Atmospheric Chemistry and Physics, Vol 21, Pp 11201-11224 (2021)
Anthropogenic secondary organic aerosol (ASOA), formed from anthropogenic emissions of organic compounds, constitutes a substantial fraction of the mass of submicron aerosol in populated areas around the world and contributes to poor air quality and
Externí odkaz:
https://doaj.org/article/953f35d7db4b44a199ec9afe12ceeb91
Autor:
H. Guo, P. Campuzano-Jost, B. A. Nault, D. A. Day, J. C. Schroder, D. Kim, J. E. Dibb, M. Dollner, B. Weinzierl, J. L. Jimenez
Publikováno v:
Atmospheric Measurement Techniques, Vol 14, Pp 3631-3655 (2021)
Aerosol intercomparisons are inherently complex as they convolve instrument-dependent detection efficiencies vs. size (which often change with pressure, temperature, or humidity) and variations in the sampled aerosol population, in addition to differ
Externí odkaz:
https://doaj.org/article/43cbaca782244fd39a552a5c2fc5447d