Free tropospheric aerosols at the Mt. Bachelor Observatory: more oxidized and higher sulfate content compared to boundary layer aerosols
Abstract
Abstract. Understanding the properties and life cycle processes of aerosol particles in regional air masses is crucial for constraining the climate impacts of aerosols on a global scale. In this study, characteristics of aerosols in the boundary layer (BL) and free troposphere (FT) of a remote continental region in the western US were studied using a high-resolution time-of-flight aerosol mass spectrometer (HR-AMS) deployed at the Mount Bachelor Observatory (MBO; 2763 m a.s.l.) in central Oregon in summer 2013. In the absence of wildfire influence, the average (±1σ) concentration of non-refractory submicrometer particulate matter (NR-PM1) at MBO was 2.8 (±2.8) µg m-3 and 84 % of the mass was organic. The other NR-PM1 components were sulfate (11 %), ammonium (2.8 %), and nitrate (0.9 %). The organic aerosol (OA) at MBO from these clean periods showed clear diurnal variations driven by the boundary layer dynamics with significantly higher concentrations occurring during daytime, upslope conditions. NR-PM1 contained a higher mass fraction of sulfate and was frequently acidic when MBO resided in the FT. In addition, OA in the FT was found to be highly oxidized (average O/C of 1.17) with low volatility while OA in BL-influenced air masses was moderately oxidized (averagemore »
- Publication Date:
- Research Org.:
- Univ. of California, Davis, CA (United States)
- Sponsoring Org.:
- USDOE Office of Science (SC), Biological and Environmental Research (BER); National Science Foundation (NSF)
- OSTI Identifier:
- 1493814
- Alternate Identifier(s):
- OSTI ID: 1612253
- Grant/Contract Number:
- SC0014620; AGS-1447832
- Resource Type:
- Published Article
- Journal Name:
- Atmospheric Chemistry and Physics (Online)
- Additional Journal Information:
- Journal Name: Atmospheric Chemistry and Physics (Online) Journal Volume: 19 Journal Issue: 3; Journal ID: ISSN 1680-7324
- Publisher:
- Copernicus Publications, EGU
- Country of Publication:
- Germany
- Language:
- English
- Subject:
- 54 ENVIRONMENTAL SCIENCES; environmental sciences & ecology; meteorology & atmospheric sciences
Citation Formats
Zhou, Shan, Collier, Sonya, Jaffe, Daniel A., and Zhang, Qi. Free tropospheric aerosols at the Mt. Bachelor Observatory: more oxidized and higher sulfate content compared to boundary layer aerosols. Germany: N. p., 2019.
Web. doi:10.5194/acp-19-1571-2019.
Zhou, Shan, Collier, Sonya, Jaffe, Daniel A., & Zhang, Qi. Free tropospheric aerosols at the Mt. Bachelor Observatory: more oxidized and higher sulfate content compared to boundary layer aerosols. Germany. https://doi.org/10.5194/acp-19-1571-2019
Zhou, Shan, Collier, Sonya, Jaffe, Daniel A., and Zhang, Qi. Thu .
"Free tropospheric aerosols at the Mt. Bachelor Observatory: more oxidized and higher sulfate content compared to boundary layer aerosols". Germany. https://doi.org/10.5194/acp-19-1571-2019.
@article{osti_1493814,
title = {Free tropospheric aerosols at the Mt. Bachelor Observatory: more oxidized and higher sulfate content compared to boundary layer aerosols},
author = {Zhou, Shan and Collier, Sonya and Jaffe, Daniel A. and Zhang, Qi},
abstractNote = {Abstract. Understanding the properties and life cycle processes of aerosol particles in regional air masses is crucial for constraining the climate impacts of aerosols on a global scale. In this study, characteristics of aerosols in the boundary layer (BL) and free troposphere (FT) of a remote continental region in the western US were studied using a high-resolution time-of-flight aerosol mass spectrometer (HR-AMS) deployed at the Mount Bachelor Observatory (MBO; 2763 m a.s.l.) in central Oregon in summer 2013. In the absence of wildfire influence, the average (±1σ) concentration of non-refractory submicrometer particulate matter (NR-PM1) at MBO was 2.8 (±2.8) µg m-3 and 84 % of the mass was organic. The other NR-PM1 components were sulfate (11 %), ammonium (2.8 %), and nitrate (0.9 %). The organic aerosol (OA) at MBO from these clean periods showed clear diurnal variations driven by the boundary layer dynamics with significantly higher concentrations occurring during daytime, upslope conditions. NR-PM1 contained a higher mass fraction of sulfate and was frequently acidic when MBO resided in the FT. In addition, OA in the FT was found to be highly oxidized (average O/C of 1.17) with low volatility while OA in BL-influenced air masses was moderately oxidized (average O/C of 0.67) and semivolatile. There are indications that the BL-influenced OA observed at MBO was more enriched in organonitrates and organosulfur compounds (e.g., MSA) and appeared to be representative of biogenic secondary organic aerosol (SOA) originated in the BL. A summary of the chemical compositions of NR-PM1 measured at a number of other high-altitude locations in the world is presented and similar contrasts between FT and BL aerosols were observed. The significant compositional and physical differences observed between FT and BL aerosols may have important implications for understanding the climate effects of regional background aerosols.},
doi = {10.5194/acp-19-1571-2019},
journal = {Atmospheric Chemistry and Physics (Online)},
number = 3,
volume = 19,
place = {Germany},
year = {Thu Feb 07 00:00:00 EST 2019},
month = {Thu Feb 07 00:00:00 EST 2019}
}
Free Publicly Available Full Text
Publisher's Version of Record
https://doi.org/10.5194/acp-19-1571-2019
https://doi.org/10.5194/acp-19-1571-2019
Other availability
Search WorldCat to find libraries that may hold this journal
Cited by: 21 works
Citation information provided by
Web of Science
Web of Science
Save to My Library
You must Sign In or Create an Account in order to save documents to your library.
Works referenced in this record:
Organic aerosol evolution and transport observed at Mt. Cimone (2165 m a.s.l.), Italy, during the PEGASOS campaign
journal, January 2015
- Rinaldi, M.; Gilardoni, S.; Paglione, M.
- Atmospheric Chemistry and Physics, Vol. 15, Issue 19
Physical aerosol properties and their relation to air mass origin at Monte Cimone (Italy) during the first MINATROC campaign
journal, January 2005
- Van Dingenen, R.; Putaud, J. -P.; Martins-Dos Santos, S.
- Atmospheric Chemistry and Physics, Vol. 5, Issue 8
Organic PM Emissions from Vehicles: Composition, O/C Ratio, and Dependence on PM Concentration
journal, January 2015
- Collier, Sonya; Zhou, Shan; Kuwayama, Toshihiro
- Aerosol Science and Technology, Vol. 49, Issue 2
The mass budgets of carbonyl sulfide, dimethyl sulfide, carbon disulfide and hydrogen sulfide
journal, January 2000
- Watts, Simon F.
- Atmospheric Environment, Vol. 34, Issue 5
Temperature-dependent accumulation mode particle and cloud nuclei concentrations from biogenic sources during WACS 2010
journal, January 2013
- Ahlm, L.; Shakya, K. M.; Russell, L. M.
- Atmospheric Chemistry and Physics, Vol. 13, Issue 6
Aqueous OH oxidation of ambient organic aerosol and cloud water organics: Formation of highly oxidized products: AQUEOUS OXIDATION OF AMBIENT ORGANICS
journal, June 2011
- Lee, Alex K. Y.; Herckes, P.; Leaitch, W. R.
- Geophysical Research Letters, Vol. 38, Issue 11
Sources of carbonaceous aerosol in the free troposphere
journal, August 2014
- Timonen, H.; Jaffe, D. A.; Wigder, N.
- Atmospheric Environment, Vol. 92
Particulate Matter, Ozone, and Nitrogen Species in Aged Wildfire Plumes Observed at the Mount Bachelor Observatory
journal, January 2016
- Briggs, Nicole L.; Jaffe, Daniel A.; Gao, Honglian
- Aerosol and Air Quality Research, Vol. 16, Issue 12
Origins and composition of fine atmospheric carbonaceous aerosol in the Sierra Nevada Mountains, California
journal, January 2011
- Worton, D. R.; Goldstein, A. H.; Farmer, D. K.
- Atmospheric Chemistry and Physics, Vol. 11, Issue 19
Chemical characteristics of submicron particles at the central Tibetan Plateau: insights from aerosol mass spectrometry
journal, January 2018
- Xu, Jianzhong; Zhang, Qi; Shi, Jinsen
- Atmospheric Chemistry and Physics, Vol. 18, Issue 1
Aerosol composition of the tropical upper troposphere
journal, January 2009
- Froyd, K. D.; Murphy, D. M.; Sanford, T. J.
- Atmospheric Chemistry and Physics, Vol. 9, Issue 13
Organic aerosol components observed in Northern Hemispheric datasets from Aerosol Mass Spectrometry
journal, January 2010
- Ng, N. L.; Canagaratna, M. R.; Zhang, Q.
- Atmospheric Chemistry and Physics, Vol. 10, Issue 10
Export of NO y from the North American boundary layer during 1996 and 1997 North Atlantic Regional Experiments : NO
journal, June 2002
- Stohl, Andreas; Trainer, Michael; Ryerson, Tom B.
- Journal of Geophysical Research: Atmospheres, Vol. 107, Issue D11
Organic nitrate and secondary organic aerosol yield from NO 3 oxidation of β-pinene evaluated using a gas-phase kinetics/aerosol partitioning model
journal, January 2009
- Fry, J. L.; Kiendler-Scharr, A.; Rollins, A. W.
- Atmospheric Chemistry and Physics, Vol. 9, Issue 4
Global direct radiative forcing due to multicomponent anthropogenic and natural aerosols
journal, January 2001
- Jacobson, Mark Z.
- Journal of Geophysical Research: Atmospheres, Vol. 106, Issue D2
Organic functional groups in aerosol particles from burning and non-burning forest emissions at a high-elevation mountain site
journal, January 2011
- Takahama, S.; Schwartz, R. E.; Russell, L. M.
- Atmospheric Chemistry and Physics, Vol. 11, Issue 13
Substantial secondary organic aerosol formation in a coniferous forest: observations of both day- and nighttime chemistry
journal, January 2016
- Lee, Alex K. Y.; Abbatt, Jonathan P. D.; Leaitch, W. Richard
- Atmospheric Chemistry and Physics, Vol. 16, Issue 11
Chemical and hygroscopic properties of aerosol organics at Storm Peak Laboratory: AEROSOL ORGANICS AT SPL
journal, May 2013
- Hallar, A. Gannet; Lowenthal, Douglas H.; Clegg, Simon L.
- Journal of Geophysical Research: Atmospheres, Vol. 118, Issue 10
Secondary organic aerosol formation in cloud droplets and aqueous particles (aqSOA): a review of laboratory, field and model studies
journal, January 2011
- Ervens, B.; Turpin, B. J.; Weber, R. J.
- Atmospheric Chemistry and Physics, Vol. 11, Issue 21
Persistent daily new particle formation at a mountain-top location
journal, August 2011
- Hallar, A. Gannet; Lowenthal, Douglas H.; Chirokova, Galina
- Atmospheric Environment, Vol. 45, Issue 24
Seasonal cycle and composition of background fine particles along the west coast of the US
journal, January 2005
- Jaffe, Dan; Tamura, Shihoko; Harris, Joyce
- Atmospheric Environment, Vol. 39, Issue 2
New particle formation in the free troposphere: A question of chemistry and timing
journal, May 2016
- Bianchi, F.; Trostl, J.; Junninen, H.
- Science, Vol. 352, Issue 6289
General circulation model assessment of direct radiative forcing by the sulfate-nitrate-ammonium-water inorganic aerosol system
journal, January 2001
- Adams, Peter J.; Seinfeld, John H.; Koch, Dorothy
- Journal of Geophysical Research: Atmospheres, Vol. 106, Issue D1
Causes of high O3 in the lower free troposphere over the Pacific Northwest as observed at the Mt. Bachelor Observatory
journal, September 2011
- Ambrose, J. L.; Reidmiller, D. R.; Jaffe, D. A.
- Atmospheric Environment, Vol. 45, Issue 30
Characteristics, sources, and transport of aerosols measured in spring 2008 during the aerosol, radiation, and cloud processes affecting Arctic Climate (ARCPAC) Project
journal, January 2011
- Brock, C. A.; Cozic, J.; Bahreini, R.
- Atmospheric Chemistry and Physics, Vol. 11, Issue 6
Contribution of new particle formation to the total aerosol concentration at the high-altitude site Jungfraujoch (3580 m asl, Switzerland): NEW PARTICLE FORMATION AT JUNGFRAUJOCH
journal, October 2016
- Tröstl, Jasmin; Herrmann, Erik; Frege, Carla
- Journal of Geophysical Research: Atmospheres, Vol. 121, Issue 19
Free tropospheric peroxyacetyl nitrate (PAN) and ozone at Mount Bachelor: potential causes of variability and timescale for trend detection
journal, January 2011
- Fischer, E. V.; Jaffe, D. A.; Weatherhead, E. C.
- Atmospheric Chemistry and Physics, Vol. 11, Issue 12
Surface and airborne measurements of organosulfur and methanesulfonate over the western United States and coastal areas
journal, August 2015
- Sorooshian, Armin; Crosbie, Ewan; Maudlin, Lindsay C.
- Journal of Geophysical Research: Atmospheres, Vol. 120, Issue 16
Fast airborne aerosol size and chemistry measurements above Mexico City and Central Mexico during the MILAGRO campaign
journal, January 2008
- DeCarlo, P. F.; Dunlea, E. J.; Kimmel, J. R.
- Atmospheric Chemistry and Physics, Vol. 8, Issue 14
Water activity as the determinant for homogeneous ice nucleation in aqueous solutions
journal, August 2000
- Koop, Thomas; Luo, Beiping; Tsias, Athanasios
- Nature, Vol. 406, Issue 6796
Observations of gas- and aerosol-phase organic nitrates at BEACHON-RoMBAS 2011
journal, January 2013
- Fry, J. L.; Draper, D. C.; Zarzana, K. J.
- Atmospheric Chemistry and Physics, Vol. 13, Issue 17
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
journal, January 2015
- Fröhlich, R.; Cubison, M. J.; Slowik, J. G.
- Atmospheric Chemistry and Physics, Vol. 15, Issue 19
Latitudinal and Seasonal Distribution of Particulate MSA over the Atlantic using a Validated Quantification Method with HR-ToF-AMS
journal, December 2016
- Huang, Shan; Poulain, Laurent; van Pinxteren, Dominik
- Environmental Science & Technology, Vol. 51, Issue 1
Characterization of aerosol and cloud water at a mountain site during WACS 2010: secondary organic aerosol formation through oxidative cloud processing
journal, January 2012
- Lee, A. K. Y.; Hayden, K. L.; Herckes, P.
- Atmospheric Chemistry and Physics, Vol. 12, Issue 15
Investigating types and sources of organic aerosol in Rocky Mountain National Park using aerosol mass spectrometry
journal, January 2015
- Schurman, M. I.; Lee, T.; Sun, Y.
- Atmospheric Chemistry and Physics, Vol. 15, Issue 2
Aircraft-based aerosol size and composition measurements during ACE-Asia using an Aerodyne aerosol mass spectrometer
journal, January 2003
- Bahreini, Roya
- Journal of Geophysical Research, Vol. 108, Issue D23
Effects of sulfuric acid and ammonium sulfate coatings on the ice nucleation properties of kaolinite particles: FREEZING OF COATED KAOLINITE PARTICLES
journal, January 2009
- Eastwood, Michael L.; Cremel, Sebastien; Wheeler, Michael
- Geophysical Research Letters, Vol. 36, Issue 2
Chemical processing of water-soluble species and formation of secondary organic aerosol in fogs
journal, March 2019
- Kim, Hwajin; Collier, Sonya; Ge, Xinlei
- Atmospheric Environment, Vol. 200
Evaluation of Composition-Dependent Collection Efficiencies for the Aerodyne Aerosol Mass Spectrometer using Field Data
journal, March 2012
- Middlebrook, Ann M.; Bahreini, Roya; Jimenez, Jose L.
- Aerosol Science and Technology, Vol. 46, Issue 3
Secondary organic aerosol formation from the β-pinene+NO 3 system: effect of humidity and peroxy radical fate
journal, January 2015
- Boyd, C. M.; Sanchez, J.; Xu, L.
- Atmospheric Chemistry and Physics, Vol. 15, Issue 13
Climatology of New Particle Formation and Corresponding Precursors at Storm Peak Laboratory
journal, January 2016
- Hallar, A. Gannet; Petersen, Ross; McCubbin, Ian B.
- Aerosol and Air Quality Research, Vol. 16, Issue 3
Examining the effects of anthropogenic emissions on isoprene-derived secondary organic aerosol formation during the 2013 Southern Oxidant and Aerosol Study (SOAS) at the Look Rock, Tennessee ground site
journal, January 2015
- Budisulistiorini, S. H.; Li, X.; Bairai, S. T.
- Atmospheric Chemistry and Physics, Vol. 15, Issue 15
Physical and optical properties of aged biomass burning aerosol from wildfires in Siberia and the Western USA at the Mt. Bachelor Observatory
journal, January 2016
- Laing, James R.; Jaffe, Daniel A.; Hee, Jonathan R.
- Atmospheric Chemistry and Physics, Vol. 16, Issue 23
Evolution of Asian aerosols during transpacific transport in INTEX-B
journal, January 2009
- Dunlea, E. J.; DeCarlo, P. F.; Aiken, A. C.
- Atmospheric Chemistry and Physics, Vol. 9, Issue 19
Aerosol Mass Spectrometric Features of Biogenic SOA: Observations from a Plant Chamber and in Rural Atmospheric Environments
journal, November 2009
- Kiendler-Scharr, Astrid; Zhang, Qi; Hohaus, Thorsten
- Environmental Science & Technology, Vol. 43, Issue 21
Gas-Phase CO 2 Subtraction for Improved Measurements of the Organic Aerosol Mass Concentration and Oxidation Degree by an Aerosol Mass Spectrometer
journal, November 2013
- Collier, S.; Zhang, Q.
- Environmental Science & Technology, Vol. 47, Issue 24
Nitrate radicals and biogenic volatile organic compounds: oxidation, mechanisms, and organic aerosol
journal, January 2017
- Ng, Nga Lee; Brown, Steven S.; Archibald, Alexander T.
- Atmospheric Chemistry and Physics, Vol. 17, Issue 3
Influences of emission sources and meteorology on aerosol chemistry in a polluted urban environment: results from DISCOVER-AQ California
journal, January 2016
- Young, Dominique E.; Kim, Hwajin; Parworth, Caroline
- Atmospheric Chemistry and Physics, Vol. 16, Issue 8
O/C and OM/OC Ratios of Primary, Secondary, and Ambient Organic Aerosols with High-Resolution Time-of-Flight Aerosol Mass Spectrometry
journal, June 2008
- Aiken, Allison C.; DeCarlo, Peter F.; Kroll, Jesse H.
- Environmental Science & Technology, Vol. 42, Issue 12
Chemical composition of free tropospheric aerosol for PM1 and coarse mode at the high alpine site Jungfraujoch
journal, January 2008
- Cozic, J.; Verheggen, B.; Weingartner, E.
- Atmospheric Chemistry and Physics, Vol. 8, Issue 2
Sources, distribution, and acidity of sulfate–ammonium aerosol in the Arctic in winter–spring
journal, December 2011
- Fisher, Jenny A.; Jacob, Daniel J.; Wang, Qiaoqiao
- Atmospheric Environment, Vol. 45, Issue 39
Gas-phase products and secondary aerosol yields from the ozonolysis of ten different terpenes
journal, January 2006
- Lee, Anita; Goldstein, Allen H.; Keywood, Melita D.
- Journal of Geophysical Research, Vol. 111, Issue D7
Evidence for a significant proportion of Secondary Organic Aerosol from isoprene above a maritime tropical forest
journal, January 2011
- Robinson, N. H.; Hamilton, J. F.; Allan, J. D.
- Atmospheric Chemistry and Physics, Vol. 11, Issue 3
Ubiquity and dominance of oxygenated species in organic aerosols in anthropogenically-influenced Northern Hemisphere midlatitudes: UBIQUITY AND DOMINANCE OF OXYGENATED OA
journal, July 2007
- Zhang, Q.; Jimenez, J. L.; Canagaratna, M. R.
- Geophysical Research Letters, Vol. 34, Issue 13
Composition and spectral characteristics of ambient aerosol at Mauna Loa Observatory
journal, January 1991
- Johnson, Stanley A.; Kumar, Romesh
- Journal of Geophysical Research, Vol. 96, Issue D3
Ubiquity of organic nitrates from nighttime chemistry in the European submicron aerosol: Organic Nitrates in European PM1
journal, July 2016
- Kiendler-Scharr, A.; Mensah, A. A.; Friese, E.
- Geophysical Research Letters, Vol. 43, Issue 14
Characterization of particle cloud droplet activity and composition in the free troposphere and the boundary layer during INTEX-B
journal, January 2010
- Roberts, G. C.; Day, D. A.; Russell, L. M.
- Atmospheric Chemistry and Physics, Vol. 10, Issue 14
Evolution of Organic Aerosols in the Atmosphere
journal, December 2009
- Jimenez, J. L.; Canagaratna, M. R.; Donahue, N. M.
- Science, Vol. 326, Issue 5959
Size-resolved aerosol chemistry on Whistler Mountain, Canada with a high-resolution aerosol mass spectrometer during INTEX-B
journal, January 2009
- Sun, Y.; Zhang, Q.; Macdonald, A. M.
- Atmospheric Chemistry and Physics, Vol. 9, Issue 9
Interpretation of organic components from Positive Matrix Factorization of aerosol mass spectrometric data
journal, January 2009
- Ulbrich, I. M.; Canagaratna, M. R.; Zhang, Q.
- Atmospheric Chemistry and Physics, Vol. 9, Issue 9
Trends and sources of ozone and sub-micron aerosols at the Mt. Bachelor Observatory (MBO) during 2004–2015
journal, September 2017
- Zhang, Lei; Jaffe, Daniel A.
- Atmospheric Environment, Vol. 165
Influence of background particulate matter (PM) on urban air quality in the Pacific Northwest
journal, November 2013
- Timonen, H.; Wigder, N.; Jaffe, D.
- Journal of Environmental Management, Vol. 129
Response of an aerosol mass spectrometer to organonitrates and organosulfates and implications for atmospheric chemistry
journal, March 2010
- Farmer, D. K.; Matsunaga, A.; Docherty, K. S.
- Proceedings of the National Academy of Sciences, Vol. 107, Issue 15
Experimental Evidence of the Feeding of the Free Troposphere with Aerosol Particles from the Mixing Layer
journal, January 2016
- Freney, Evelyn; Sellegri Karine, Sellegri Karine; Eija, Asmi
- Aerosol and Air Quality Research, Vol. 16, Issue 3
Regional Influence of Aerosol Emissions from Wildfires Driven by Combustion Efficiency: Insights from the BBOP Campaign
journal, July 2016
- Collier, Sonya; Zhou, Shan; Onasch, Timothy B.
- Environmental Science & Technology, Vol. 50, Issue 16, p. 8613-8622
Positive matrix factorization: A non-negative factor model with optimal utilization of error estimates of data values
journal, June 1994
- Paatero, Pentti; Tapper, Unto
- Environmetrics, Vol. 5, Issue 2
Factor analysis of combined organic and inorganic aerosol mass spectra from high resolution aerosol mass spectrometer measurements
journal, January 2012
- Sun, Y. L.; Zhang, Q.; Schwab, J. J.
- Atmospheric Chemistry and Physics, Vol. 12, Issue 18
Dissolved organic carbon (DOC) and select aldehydes in cloud and fog water: the role of the aqueous phase in impacting trace gas budgets
journal, January 2013
- Ervens, B.; Wang, Y.; Eagar, J.
- Atmospheric Chemistry and Physics, Vol. 13, Issue 10
Observations of Asian air pollution in the free troposphere at Mount Bachelor Observatory during the spring of 2004: OBSERVATIONS AT MT. BACHELOR OBSERVATORY
journal, May 2006
- Weiss-Penzias, Peter; Jaffe, Daniel A.; Swartzendruber, Philip
- Journal of Geophysical Research: Atmospheres, Vol. 111, Issue D10
Characterization of the aerosol over the sub-arctic north east Pacific Ocean
journal, October 2006
- Phinney, Lisa; Richard Leaitch, W.; Lohmann, Ulrike
- Deep Sea Research Part II: Topical Studies in Oceanography, Vol. 53, Issue 20-22
Aerosol states in the free troposphere at northern midlatitudes: FREE TROPOSPHERIC AEROSOL STATES
journal, September 2002
- Schröder, F.; Kärcher, B.; Fiebig, M.
- Journal of Geophysical Research: Atmospheres, Vol. 107, Issue D21
Meteorological controls on observed peroxyacetyl nitrate at Mount Bachelor during the spring of 2008
journal, January 2010
- Fischer, E. V.; Jaffe, D. A.; Reidmiller, D. R.
- Journal of Geophysical Research, Vol. 115, Issue D3
Nitrogen oxides in the boundary layer and free troposphere at the Mt. Bachelor Observatory
journal, January 2010
- Reidmiller, D. R.; Jaffe, D. A.; Fischer, E. V.
- Atmospheric Chemistry and Physics, Vol. 10, Issue 13
Regional influence of wildfires on aerosol chemistry in the western US and insights into atmospheric aging of biomass burning organic aerosol
journal, January 2017
- Zhou, Shan; Collier, Sonya; Jaffe, Daniel A.
- Atmospheric Chemistry and Physics, Vol. 17, Issue 3
The Computation of Equivalent Potential Temperature
journal, July 1980
- Bolton, David
- Monthly Weather Review, Vol. 108, Issue 7
Major contribution of neutral clusters to new particle formation at the interface between the boundary layer and the free troposphere
journal, January 2015
- Rose, C.; Sellegri, K.; Asmi, E.
- Atmospheric Chemistry and Physics, Vol. 15, Issue 6
Characterization of submicron particles influenced by mixed biogenic and anthropogenic emissions using high-resolution aerosol mass spectrometry: results from CARES
journal, January 2012
- Setyan, A.; Zhang, Q.; Merkel, M.
- Atmospheric Chemistry and Physics, Vol. 12, Issue 17
Molecular characterization of free tropospheric aerosol collected at the Pico Mountain Observatory: a case study with a long-range transported biomass burning plume
journal, January 2015
- Dzepina, K.; Mazzoleni, C.; Fialho, P.
- Atmospheric Chemistry and Physics, Vol. 15, Issue 9
In situ vertical profiles of aerosol extinction, mass, and composition over the southeast United States during SENEX and SEAC 4 RS: observations of a modest aerosol enhancement aloft
journal, January 2015
- Wagner, N. L.; Brock, C. A.; Angevine, W. M.
- Atmospheric Chemistry and Physics, Vol. 15, Issue 12
Export of atmospheric mercury from Asia
journal, June 2005
- Jaffe, D.; Prestbo, E.; Swartzendruber, P.
- Atmospheric Environment, Vol. 39, Issue 17
Long-term real-time chemical characterization of submicron aerosols at Montsec (southern Pyrenees, 1570 m a.s.l.)
journal, January 2015
- Ripoll, A.; Minguillón, M. C.; Pey, J.
- Atmospheric Chemistry and Physics, Vol. 15, Issue 6
Elemental ratio measurements of organic compounds using aerosol mass spectrometry: characterization, improved calibration, and implications
journal, January 2015
- Canagaratna, M. R.; Jimenez, J. L.; Kroll, J. H.
- Atmospheric Chemistry and Physics, Vol. 15, Issue 1
Effects of aging on organic aerosol from open biomass burning smoke in aircraft and laboratory studies
journal, January 2011
- Cubison, M. J.; Ortega, A. M.; Hayes, P. L.
- Atmospheric Chemistry and Physics, Vol. 11, Issue 23
Understanding atmospheric organic aerosols via factor analysis of aerosol mass spectrometry: a review
journal, October 2011
- Zhang, Qi; Jimenez, Jose L.; Canagaratna, Manjula R.
- Analytical and Bioanalytical Chemistry, Vol. 401, Issue 10
Amazon boundary layer aerosol concentration sustained by vertical transport during rainfall
journal, October 2016
- Wang, Jian; Krejci, Radovan; Giangrande, Scott
- Nature, Vol. 539, Issue 7629, p. 416-419
Carbon Dioxide in the Free Troposphere and Boundary Layer at the Mt. Bachelor Observatory
journal, January 2016
- McClure, Crystal D.; Jaffe, Daniel A.; Gao, Honglian
- Aerosol and Air Quality Research, Vol. 16, Issue 3
Influences of upwind emission sources and atmospheric processing on aerosol chemistry and properties at a rural location in the Northeastern U.S.: URBAN INFLUENCE ON RURAL AEROSOL
journal, May 2016
- Zhou, Shan; Collier, Sonya; Xu, Jianzhong
- Journal of Geophysical Research: Atmospheres, Vol. 121, Issue 10
Atmospheric aerosol compositions and sources at two national background
sites in northern and southern China
journal, January 2016
- Zhu, Qiao; He, Ling-Yan; Huang, Xiao-Feng
- Atmospheric Chemistry and Physics, Vol. 16, Issue 15
Characterization of the South Atlantic marine boundary layer aerosol using an aerodyne aerosol mass spectrometer
journal, January 2008
- Zorn, S. R.; Drewnick, F.; Schott, M.
- Atmospheric Chemistry and Physics, Vol. 8, Issue 16
Submicron particle mass concentrations and sources in the Amazonian wet season (AMAZE-08)
journal, January 2015
- Chen, Q.; Farmer, D. K.; Rizzo, L. V.
- Atmospheric Chemistry and Physics, Vol. 15, Issue 7
Effect of aqueous-phase processing on aerosol chemistry and size distributions in Fresno, California, during wintertime
journal, January 2012
- Ge, Xinlei; Zhang, Qi; Sun, Yele
- Environmental Chemistry, Vol. 9, Issue 3