Search Results - "CAPPA, C"

Impact of brown and clear carbon on light absorption enhancement, single scatter albedo and absorption wavelength dependence of black carbon by Lack, D. A., Cappa, C. D.

“…The presence of clear coatings on atmospheric black carbon (BC) particles is known to enhance the magnitude of light absorption by the BC cores. Based on…”
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Multi-generation gas-phase oxidation, equilibrium partitioning, and the formation and evolution of secondary organic aerosol by Cappa, C. D, Wilson, K. R

“…A new model of secondary organic aerosol (SOA) formation is developed that explicitly takes into account multi-generational oxidation as well as fragmentation…”
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Evolution of organic aerosol mass spectra upon heating: implications for OA phase and partitioning behavior by Cappa, C D, Wilson, K R

“…Vacuum Ultraviolet (VUV) photoionization mass spectrometry has been used to measure the evolution of chemical composition for two distinct organic aerosol…”
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Quantitative estimates of the volatility of ambient organic aerosol by Cappa, C. D., Jimenez, J. L.

“…Measurements of the sensitivity of organic aerosol (OA, and its components) mass to changes in temperature were recently reported by Huffman et al.~(2009)…”
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Characterization and nutritional valorization of agricultural waste corncobs from Italian maize landraces through the growth of medicinal mushrooms by Castorina, G., Cappa, C., Negrini, N., Criscuoli, F., Casiraghi, M. C., Marti, A., Rollini, M., Consonni, G., Erba, D.

“…The research investigates the potential use of maize cobs (or corncobs) from five genotypes, including the B73 inbred line and four locally cultivated…”
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Cyanoacetylene in the outflow/hot molecular core G331.512−0.103 by Duronea, N U, Bronfman, L, Mendoza, E, Merello, M, Finger, R, Reyes, N, Hervías-Caimapo, C, Faure, A, Cappa, C E, Arnal, E M, Lépine, J R D, Kleiner, I, Nyman, L-Å

“…ABSTRACT Using APEX-1 and APEX-2 observations, we have detected and studied the rotational lines of the HC3N molecule (cyanoacetylene) in the powerful…”
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Temperature and Composition Dependence of Sea Spray Aerosol Production by Forestieri, S. D., Moore, K. A., Martinez Borrero, R., Wang, A., Stokes, M. D., Cappa, C. D.

“…A discrepancy between laboratory and field‐derived parameterizations for the dependence of sea spray aerosol (SSA) particle number concentrations (Np) and size…”
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The influences of mass loading and rapid dilution of secondary organic aerosol on particle volatility by Kolesar, K R, Chen, C, Johnson, D, Cappa, C D

“…The thermally induced evaporation of secondary organic aerosol (SOA) has been characterized for SOA formed from the dark ozonolysis of α-pinene at initial mass…”
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Measurements of ocean derived aerosol off the coast of California by Bates, T. S., Quinn, P. K., Frossard, A. A., Russell, L. M., Hakala, J., Petäjä, T., Kulmala, M., Covert, D. S., Cappa, C. D., Li, S.-M., Hayden, K. L., Nuaaman, I., McLaren, R., Massoli, P., Canagaratna, M. R., Onasch, T. B., Sueper, D., Worsnop, D. R., Keene, W. C.

“…Reliable characterization of particles freshly emitted from the ocean surface requires a sampling method that is able to isolate those particles and prevent…”
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On the effectiveness of nitrogen oxide reductions as a control over ammonium nitrate aerosol by Pusede, S. E, Duffey, K. C, Shusterman, A. A, Saleh, A, Laughner, J. L, Wooldridge, P. J, Zhang, Q, Parworth, C. L, Kim, H, Capps, S. L, Valin, L. C, Cappa, C. D, Fried, A, Walega, J, Nowak, J. B, Weinheimer, A. J, Hoff, R. M, Berkoff, T. A, Beyersdorf, A. J, Olson, J, Crawford, J. H, Cohen, R. C

“…Nitrogen oxides (NOx) have fallen steadily across the US over the last 15 years. At the same time, NOx concentrations decrease on weekends relative to…”
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A model of aerosol evaporation kinetics in a thermodenuder by Cappa, C. D.

“…Aerosol thermodenuders provide a measure of particle volatility. The information provided by a thermodenuder is fundamentally related to the kinetics of…”
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Molecular clumps towards compact H ii regions by Saldaño, Hugo P, Rubio, M, Cappa, C E, Gómez, M

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The heterogeneous reaction of hydroxyl radicals with sub-micron squalane particles: a model system for understanding the oxidative aging of ambient aerosols by Smith, J. D., Kroll, J. H., Cappa, C. D., Che, D. L., Liu, C. L., Ahmed, M., Leone, S. R., Worsnop, D. R., Wilson, K. R.

“…The heterogeneous reaction of OH radicals with sub-micron squalane particles, in the presence of O2, is used as a model system to explore the fundamental…”
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A case study into the measurement of ship emissions from plume intercepts of the NOAA ship Miller Freeman by Cappa, C. D, Williams, E. J, Lack, D. A, Buffaloe, G. M, Coffman, D, Hayden, K. L, Herndon, S. C, Lerner, B. M, Li, S.-M, Massoli, P, McLaren, R, Nuaaman, I, Onasch, T. B, Quinn, P. K

“…Emissions factors (EFs) for gas and sub-micron particle-phase species were measured in intercepted plumes as a function of vessel speed from an underway…”
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Evaluation of recently-proposed secondary organic aerosol models for a case study in Mexico City by Dzepina, K., Volkamer, R. M., Madronich, S., Tulet, P., Ulbrich, I. M., Zhang, Q., Cappa, C. D., Ziemann, P. J., Jimenez, J. L.

“…Recent field studies have found large discrepancies in the measured vs. modeled SOA mass loadings in both urban and regional polluted atmospheres. The reasons…”
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Black carbon emissions from in-use ships: a California regional assessment by Buffaloe, G. M, Lack, D. A, Williams, E. J, Coffman, D, Hayden, K. L, Lerner, B. M, Li, S.-M, Nuaaman, I, Massoli, P, Onasch, T. B, Quinn, P. K, Cappa, C. D

“…Black carbon (BC) mass emission factors (EFBC; g BC (kg fuel)−1) from a variety of ocean-going vessels have been determined from measurements of BC and carbon…”
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Aerosol optical hygroscopicity measurements during the 2010 CARES campaign by Atkinson, D. B, Radney, J. G, Lum, J, Kolesar, K. R, Cziczo, D. J, Pekour, M. S, Zhang, Q, Setyan, A, Zelenyuk, A, Cappa, C. D

“…Measurements of the effect of water uptake on particulate light extinction or scattering made at two locations during the 2010 Carbonaceous Aerosols and…”
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Simulating secondary organic aerosol in a regional air quality model using the statistical oxidation model – Part 1: Assessing the influence of constrained multi-generational ageing by Jathar, S. H., Cappa, C. D., Wexler, A. S., Seinfeld, J. H., Kleeman, M. J.

“…Multi-generational oxidation of volatile organic compound (VOC) oxidation products can significantly alter the mass, chemical composition and properties of…”
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Strong evidence of surface tension reduction in microscopic aqueous droplets by Ruehl, C. R., Chuang, P. Y., Nenes, A., Cappa, C. D., Kolesar, K. R., Goldstein, A. H.

“…The ability of airborne particles to take up water may be enhanced by surface‐active components, but the importance of this effect is controversial because…”
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Multi-generational oxidation model to simulate secondary organic aerosol in a 3-D air quality model by Jathar, S. H, Cappa, C. D, Wexler, A. S, Seinfeld, J. H, Kleeman, M. J

“…Multi-generational gas-phase oxidation of organic vapors can influence the abundance, composition and properties of secondary organic aerosol (SOA). Only…”
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