Zobrazeno 1 - 10
of 19
pro vyhledávání: '"C. J. Gaston"'
Autor:
C. J. Gaston, J. M. Prospero, K. Foley, H. O. T. Pye, L. Custals, E. Blades, P. Sealy, J. A. Christie
Publikováno v:
Atmospheric Chemistry and Physics, Vol 24, Pp 8049-8066 (2024)
Sulfate and nitrate aerosols degrade air quality, modulate radiative forcing and the hydrological cycle, and affect biogeochemical cycles, yet their global cycles are poorly understood. Here, we examined trends in 21 years of aerosol measurements mad
Externí odkaz:
https://doaj.org/article/3707666d51b04f12b1a14316b8aef834
Autor:
H. M. Royer, M. L. Pöhlker, O. Krüger, E. Blades, P. Sealy, N. N. Lata, Z. Cheng, S. China, A. P. Ault, P. K. Quinn, P. Zuidema, C. Pöhlker, U. Pöschl, M. Andreae, C. J. Gaston
Publikováno v:
Atmospheric Chemistry and Physics, Vol 23, Pp 981-998 (2023)
The number concentration and properties of aerosol particles serving as cloud condensation nuclei (CCN) are important for understanding cloud properties, including in the tropical Atlantic marine boundary layer (MBL), where marine cumulus clouds refl
Externí odkaz:
https://doaj.org/article/acb017c7208e4104b0798185ea519c57
Autor:
P. K. Quinn, E. J. Thompson, D. J. Coffman, S. Baidar, L. Bariteau, T. S. Bates, S. Bigorre, A. Brewer, G. de Boer, S. P. de Szoeke, K. Drushka, G. R. Foltz, J. Intrieri, S. Iyer, C. W. Fairall, C. J. Gaston, F. Jansen, J. E. Johnson, O. O. Krüger, R. D. Marchbanks, K. P. Moran, D. Noone, S. Pezoa, R. Pincus, A. J. Plueddemann, M. L. Pöhlker, U. Pöschl, E. Quinones Melendez, H. M. Royer, M. Szczodrak, J. Thomson, L. M. Upchurch, C. Zhang, D. Zhang, P. Zuidema
Publikováno v:
Earth System Science Data, Vol 13, Pp 1759-1790 (2021)
The Atlantic Tradewind Ocean-Atmosphere Mesoscale Interaction Campaign (ATOMIC) took place from 7 January to 11 July 2020 in the tropical North Atlantic between the eastern edge of Barbados and 51∘ W, the longitude of the Northwest Tropical Atlanti
Externí odkaz:
https://doaj.org/article/d3434046ec9844658584034977e5e4fd
Autor:
S. J. Kramer, C. Alvarez, A. E. Barkley, P. R. Colarco, L. Custals, R. Delgadillo, C. J. Gaston, R. Govindaraju, P. Zuidema
Publikováno v:
Atmospheric Chemistry and Physics, Vol 20, Pp 10047-10062 (2020)
North African dust reaches the southeastern United States every summer. Size-resolved dust mass measurements taken in Miami, Florida, indicate that more than one-half of the surface dust mass concentrations reside in particles with geometric diameter
Externí odkaz:
https://doaj.org/article/1ae229fd3f5c439999a7d67b897ac320
Autor:
Z. Li, E. L. D'Ambro, S. Schobesberger, C. J. Gaston, F. D. Lopez-Hilfiker, J. Liu, J. E. Shilling, J. A. Thornton, C. D. Cappa
Publikováno v:
Atmospheric Chemistry and Physics, Vol 20, Pp 2489-2512 (2020)
One of the challenges of understanding atmospheric organic aerosol (OA) particles stems from its complex composition. Mass spectrometry is commonly used to characterize the compositional variability of OA. Clustering of a mass spectral dataset helps
Externí odkaz:
https://doaj.org/article/36791a1caef64efa8b71b5b8c0dd3367
Autor:
E. L. D'Ambro, S. Schobesberger, C. J. Gaston, F. D. Lopez-Hilfiker, B. H. Lee, J. Liu, A. Zelenyuk, D. Bell, C. D. Cappa, T. Helgestad, Z. Li, A. Guenther, J. Wang, M. Wise, R. Caylor, J. D. Surratt, T. Riedel, N. Hyttinen, V.-T. Salo, G. Hasan, T. Kurtén, J. E. Shilling, J. A. Thornton
Publikováno v:
Atmospheric Chemistry and Physics, Vol 19, Pp 11253-11265 (2019)
We present measurements utilizing the Filter Inlet for Gases and Aerosols (FIGAERO) applied to chamber measurements of isoprene-derived epoxydiol (IEPOX) reactive uptake to aqueous acidic particles and associated secondary organic aerosol (SOA) forma
Externí odkaz:
https://doaj.org/article/67c691d7978f4271ac4aeb2e33456faa
Autor:
E. L. D'Ambro, B. H. Lee, J. Liu, J. E. Shilling, C. J. Gaston, F. D. Lopez-Hilfiker, S. Schobesberger, R. A. Zaveri, C. Mohr, A. Lutz, Z. Zhang, A. Gold, J. D. Surratt, J. C. Rivera-Rios, F. N. Keutsch, J. A. Thornton
Publikováno v:
Atmospheric Chemistry and Physics, Vol 17, Iss 1, Pp 159-174 (2017)
We present measurements of secondary organic aerosol (SOA) formation from isoprene photochemical oxidation in an environmental simulation chamber at a variety of oxidant conditions and using dry neutral seed particles to suppress acid-catalyzed multi
Externí odkaz:
https://doaj.org/article/a227414114f445b0b32a04e95331639b
Publikováno v:
Atmospheric Chemistry and Physics, Vol 14, Iss 11, Pp 5693-5707 (2014)
We measured N2O5 reactive uptake onto mixed organic/inorganic submicron particles using organic compounds with a variety of oxidation states (using mainly atomic O : C ratios as a proxy) and molecular weights. The organic mass fraction, organic molec
Externí odkaz:
https://doaj.org/article/0367f8fd99394096bfba20bc846dab8c
Autor:
C. J. Gaston, K. A. Prather, L. M. Russell, S. Liu, D. A. Day, O. S. Ryder, T. H. Bertram, T. P. Riedel, J. A. Thornton
Publikováno v:
Atmospheric Chemistry and Physics, Vol 12, Iss 6, Pp 2959-2968 (2012)
Direct measurements of N2O5 reactivity on ambient aerosol particles were made during September 2009 at the Scripps Institution of Oceanography (SIO) Pier facility located in La Jolla, CA. N2O5 reactivity measurements were made using a custom flow rea
Externí odkaz:
https://doaj.org/article/11639ff78621425eb7db7a50f38cca36
Publikováno v:
Biogeosciences, Vol 8, Iss 2, Pp 301-309 (2011)
Bioaerosols are emerging as important yet poorly understood players in atmospheric processes. Microorganisms can impact atmospheric chemistry through metabolic reactions and can potentially influence physical processes by participating in ice nucleat
Externí odkaz:
https://doaj.org/article/4b477d2667094b2088d0e87cb8157e53