Výsledky vyhledávání - "M. J. Cubison"

Akademický článek

Interferences with aerosol acidity quantification due to gas-phase ammonia uptake onto acidic sulfate filter samples

Autor: B. A. Nault, P. Campuzano-Jost, D. A. Day, H. Guo, D. S. Jo, A. V. Handschy, D. Pagonis, J. C. Schroder, M. K. Schueneman, M. J. Cubison, J. E. Dibb, A. Hodzic, W. Hu, B. B. Palm, J. L. Jimenez

Publikováno v: Atmospheric Measurement Techniques, Vol 13, Pp 6193-6213 (2020)

Measurements of the mass concentration and chemical speciation of aerosols are important to investigate their chemical and physical processing from near emission sources to the most remote regions of the atmosphere. A common method to analyze aerosol

Externí odkaz: https://doaj.org/article/317cff21ccdd41259bc37e1cf594c9c5

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Akademický článek

Ion mobility spectrometry–mass spectrometry (IMS–MS) for on- and offline analysis of atmospheric gas and aerosol species

Autor: J. E. Krechmer, M. Groessl, X. Zhang, H. Junninen, P. Massoli, A. T. Lambe, J. R. Kimmel, M. J. Cubison, S. Graf, Y.-H. Lin, S. H. Budisulistiorini, H. Zhang, J. D. Surratt, R. Knochenmuss, J. T. Jayne, D. R. Worsnop, J.-L. Jimenez, M. R. Canagaratna

Publikováno v: Atmospheric Measurement Techniques, Vol 9, Iss 7, Pp 3245-3262 (2016)

Measurement techniques that provide molecular-level information are needed to elucidate the multiphase processes that produce secondary organic aerosol (SOA) species in the atmosphere. Here we demonstrate the application of ion mobility spectrometry-

Externí odkaz: https://doaj.org/article/01d02e0e5528484bb50606805da7be00

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Akademický článek

Evaluating model parameterizations of submicron aerosol scattering and absorption with in situ data from ARCTAS 2008

Autor: M. J. Alvarado, C. R. Lonsdale, H. L. Macintyre, H. Bian, M. Chin, D. A. Ridley, C. L. Heald, K. L. Thornhill, B. E. Anderson, M. J. Cubison, J. L. Jimenez, Y. Kondo, L. K. Sahu, J. E. Dibb, C. Wang

Publikováno v: Atmospheric Chemistry and Physics, Vol 16, Pp 9435-9455 (2016)

Accurate modeling of the scattering and absorption of ultraviolet and visible radiation by aerosols is essential for accurate simulations of atmospheric chemistry and climate. Closure studies using in situ measurements of aerosol scattering and ab

Externí odkaz: https://doaj.org/article/32fbee8e1af64e31bfa4d4c4e573bbd5

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Akademický článek

Real-time measurements of secondary organic aerosol formation and aging from ambient air in an oxidation flow reactor in the Los Angeles area

Autor: A. M. Ortega, P. L. Hayes, Z. Peng, B. B. Palm, W. Hu, D. A. Day, R. Li, M. J. Cubison, W. H. Brune, M. Graus, C. Warneke, J. B. Gilman, W. C. Kuster, J. de Gouw, C. Gutiérrez-Montes, J. L. Jimenez

Publikováno v: Atmospheric Chemistry and Physics, Vol 16, Pp 7411-7433 (2016)

Field studies in polluted areas over the last decade have observed large formation of secondary organic aerosol (SOA) that is often poorly captured by models. The study of SOA formation using ambient data is often confounded by the effects of adve

Externí odkaz: https://doaj.org/article/b2c5b0847538484ea4c636bac9a9f3a0

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Akademický článek

Aircraft-measured indirect cloud effects from biomass burning smoke in the Arctic and subarctic

Autor: L. M. Zamora, R. A. Kahn, M. J. Cubison, G. S. Diskin, J. L. Jimenez, Y. Kondo, G. M. McFarquhar, A. Nenes, K. L. Thornhill, A. Wisthaler, A. Zelenyuk, L. D. Ziemba

Publikováno v: Atmospheric Chemistry and Physics, Vol 16, Pp 715-738 (2016)

The incidence of wildfires in the Arctic and subarctic is increasing; in boreal North America, for example, the burned area is expected to increase by 200–300 % over the next 50–100 years, which previous studies suggest could have a large effe

Externí odkaz: https://doaj.org/article/b6adf9eb84b04cadb78d417ae9f77159

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Akademický článek

ACTRIS ACSM intercomparison – Part 1: Reproducibility of concentration and fragment results from 13 individual Quadrupole Aerosol Chemical Speciation Monitors (Q-ACSM) and consistency with co-located instruments

Publikováno v: Atmospheric Measurement Techniques, Vol 8, Iss 12, Pp 5063-5087 (2015)

As part of the European ACTRIS project, the first large Quadrupole Aerosol Chemical Speciation Monitor (Q-ACSM) intercomparison study was conducted in the region of Paris for 3 weeks during the late-fall – early-winter period (November–December 2

Externí odkaz: https://doaj.org/article/afec42f9a9b64c2d9d0e2e510d8aa125

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Akademický článek

Fourteen months of on-line measurements of the non-refractory submicron aerosol at the Jungfraujoch (3580 m a.s.l.) – chemical composition, origins and organic aerosol sources

Autor: R. Fröhlich, M. J. Cubison, J. G. Slowik, N. Bukowiecki, F. Canonaco, P. L. Croteau, M. Gysel, S. Henne, E. Herrmann, J. T. Jayne, M. Steinbacher, D. R. Worsnop, U. Baltensperger, A. S. H. Prévôt

Publikováno v: Atmospheric Chemistry and Physics, Vol 15, Iss 19, Pp 11373-11398 (2015)

Chemically resolved (organic, nitrate, sulfate, ammonium) data of non-refractory submicron (NR-PM1) aerosol from the first long-term deployment (27 July 2012 to 02 October 2013) of a time-of-flight aerosol chemical speciation monitor (ToF-ACSM) at th

Externí odkaz: https://doaj.org/article/504dd5fbf5dc4742909a5707cd86f775

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Akademický článek

Statistical precision of the intensities retrieved from constrained fitting of overlapping peaks in high-resolution mass spectra

Autor: M. J. Cubison, J. L. Jimenez

Publikováno v: Atmospheric Measurement Techniques, Vol 8, Iss 6, Pp 2333-2345 (2015)

Least-squares fitting of overlapping peaks is often needed to separately quantify ions in high-resolution mass spectrometer data. A statistical simulation approach is used to assess the statistical precision of the retrieved peak intensities. The sen

Externí odkaz: https://doaj.org/article/b76be90a436245b682adf4fc285a5f29

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Akademický článek

ACTRIS ACSM intercomparison – Part 2: Intercomparison of ME-2 organic source apportionment results from 15 individual, co-located aerosol mass spectrometers

Publikováno v: Atmospheric Measurement Techniques, Vol 8, Iss 6, Pp 2555-2576 (2015)

Chemically resolved atmospheric aerosol data sets from the largest intercomparison of the Aerodyne aerosol chemical speciation monitors (ACSMs) performed to date were collected at the French atmospheric supersite SIRTA. In total 13 quadrupole ACSM

Externí odkaz: https://doaj.org/article/ac99be02a1fb4276983f8b7b48c685bd

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Akademický článek

Evaluation of the performance of a particle concentrator for online instrumentation

Autor: S. Saarikoski, S. Carbone, M. J. Cubison, R. Hillamo, P. Keronen, C. Sioutas, D. R. Worsnop, J. L. Jimenez

Publikováno v: Atmospheric Measurement Techniques, Vol 7, Iss 7, Pp 2121-2135 (2014)

The performance of the miniature Versatile Aerosol Concentration Enrichment System (m-VACES; Geller et al., 2005) was investigated in laboratory and field studies using online instruments. Laboratory tests focused on the behavior of monodisperse ammo

Externí odkaz: https://doaj.org/article/d49510e61f7f4efc8348b1bfe02e9c4f

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