Search Results - "Dunlea, J."

Improving our fundamental understanding of the role of aerosol–cloud interactions in the climate system by Seinfeld, John H., Bretherton, Christopher, Carslaw, Kenneth S., Coe, Hugh, DeMott, Paul J., Dunlea, Edward J., Feingold, Graham, Ghan, Steven, Guenther, Alex B., Kahn, Ralph, Kraucunas, Ian, Kreidenweis, Sonia M., Molina, Mario J., Nenes, Athanasios, Penner, Joyce E., Prather, Kimberly A., Ramanathan, V., Ramaswamy, Venkatachalam, Rasch, Philip J., Ravishankara, A. R., Rosenfeld, Daniel, Stephens, Graeme, Wood, Robert

“…The effect of an increase in atmospheric aerosol concentrations on the distribution and radiative properties of Earth’s clouds is the most uncertain component…”
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Ground-level nitrogen dioxide concentrations inferred from the satellite-borne Ozone Monitoring Instrument by Lamsal, L. N., Martin, R. V., van Donkelaar, A., Steinbacher, M., Celarier, E. A., Bucsela, E., Dunlea, E. J., Pinto, J. P.

“…We present an approach to infer ground‐level nitrogen dioxide (NO2) concentrations by applying local scaling factors from a global three‐dimensional model…”
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Evolution of Organic Aerosols in the Atmosphere by Jimenez, J.L, Canagaratna, M.R, Donahue, N.M, Prevot, A.S.H, Zhang, Q, Kroll, J.H, DeCarlo, P.F, Allan, J.D, Coe, H, Ng, N.L, Aiken, A.C, Docherty, K.S, Ulbrich, I.M, Grieshop, A.P, Robinson, A.L, Duplissy, J, Smith, J.D, Wilson, K.R, Lanz, V.A, Hueglin, C, Sun, Y.L, Tian, J, Laaksonen, A, Raatikainen, T, Rautiainen, J, Vaattovaara, P, Ehn, M, Kulmala, M, Tomlinson, J.M, Collins, D.R, Cubison, M.J, Dunlea, J, Huffman, J.A, Onasch, T.B, Alfarra, M.R, Williams, P.I, Bower, K, Kondo, Y, Schneider, J, Drewnick, F, Borrmann, S, Weimer, S, Demerjian, K, Salcedo, D, Cottrell, L, Griffin, R, Takami, A, Miyoshi, T, Hatakeyama, S, Shimono, A, Sun, J.Y, Zhang, Y.M, Dzepina, K, Kimmel, J.R, Sueper, D, Jayne, J.T, Herndon, S.C, Trimborn, A.M, Williams, L.R, Wood, E.C, Middlebrook, A.M, Kolb, C.E, Baltensperger, U, Worsnop, D.R

“…Organic aerosol (OA) particles affect climate forcing and human health, but their sources and evolution remain poorly characterized. We present a unifying…”
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Investigation of the sources and processing of organic aerosol over the Central Mexican Plateau from aircraft measurements during MILAGRO by DeCarlo, P. F., Ulbrich, I. M., Crounse, J., de Foy, B., Dunlea, E. J., Aiken, A. C., Knapp, D., Weinheimer, A. J., Campos, T., Wennberg, P. O., Jimenez, J. L.

“…Organic aerosol (OA) represents approximately half of the submicron aerosol in Mexico City and the Central Mexican Plateau. This study uses the high time…”
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Exploring the vertical profile of atmospheric organic aerosol: comparing 17 aircraft field campaigns with a global model by Heald, C. L., Coe, H., Jimenez, J. L., Weber, R. J., Bahreini, R., Middlebrook, A. M., Russell, L. M., Jolleys, M., Fu, T.-M., Allan, J. D., Bower, K. N., Capes, G., Crosier, J., Morgan, W. T., Robinson, N. H., Williams, P. I., Cubison, M. J., DeCarlo, P. F., Dunlea, E. J.

“…The global organic aerosol (OA) budget is highly uncertain and past studies suggest that models substantially underestimate observed concentrations. Few of…”
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Importance of secondary sources in the atmospheric budgets of formic and acetic acids by Paulot, F, Wunch, D, Crounse, J D, Toon, G C, Millet, D B, DeCarlo, P F, Vigouroux, C, Deutscher, N M, González Abad, G, Notholt, J, Warneke, T, Hannigan, J W, Warneke, C, de Gouw, J A, Dunlea, E J, De Mazière, M, Griffith, D W T, Bernath, P, Jimenez, J L, Wennberg, P O

“…We present a detailed budget of formic and acetic acids, two of the most abundant trace gases in the atmosphere. Our bottom-up estimate of the global source of…”
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Evaluation of nitrogen dioxide chemiluminescence monitors in a polluted urban environment by Dunlea, E. J., Herndon, S. C., Nelson, D. D., Volkamer, R. M., San Martini, F., Sheehy, P. M., Zahniser, M. S., Shorter, J. H., Wormhoudt, J. C., Lamb, B. K., Allwine, E. J., Gaffney, J. S., Marley, N. A., Grutter, M., Marquez, C., Blanco, S., Cardenas, B., Retama, A., Ramos Villegas, C. R., Kolb, C. E., Molina, L. T., Molina, M. J.

“…Data from a recent field campaign in Mexico City are used to evaluate the performance of the EPA Federal Reference Method for monitoring the ambient…”
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Characterization of organic ambient aerosol during MIRAGE 2006 on three platforms by Gilardoni, S., Liu, S., Takahama, S., Russell, L. M., Allan, J. D., Steinbrecher, R., Jimenez, J. L., De Carlo, P. F., Dunlea, E. J., Baumgardner, D.

“…Submicron atmospheric aerosol particles were collected during the Megacity Initiative: Local and Global Research Observation (MILAGRO) in March 2006 at three…”
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Evolution of Asian aerosols during transpacific transport in INTEX-B by Dunlea, E. J., DeCarlo, P. F., Aiken, A. C., Kimmel, J. R., Peltier, R. E., Weber, R. J., Tomlinson, J., Collins, D. R., Shinozuka, Y., McNaughton, C. S., Howell, S. G., Clarke, A. D., Emmons, L. K., Apel, E. C., Pfister, G. G., van Donkelaar, A., Martin, R. V., Millet, D. B., Heald, C. L., Jimenez, J. L.

“…Measurements of aerosol composition were made with an Aerodyne High Resolution Time-of-Flight Aerosol Mass Spectrometer (HR-ToF-AMS) on board the NSF/NCAR…”
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Measurements of heterogeneous ice nuclei in the western United States in springtime and their relation to aerosol characteristics by Richardson, Mathews S., DeMott, Paul J., Kreidenweis, Sonia M., Cziczo, Daniel J., Dunlea, Edward J., Jimenez, Jose L., Thomson, David S., Ashbaugh, Lowell L., Borys, Randolph D., Westphal, Douglas L., Casuccio, Gary S., Lersch, Traci L.

“…The second Ice Nuclei Spectroscopy (INSPECT‐II) campaign was conducted at Storm Peak Laboratory in northwestern Colorado in April and May 2004. The physical…”
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Observations of heterogeneous reactions between Asian pollution and mineral dust over the Eastern North Pacific during INTEX-B by McNaughton, C. S., Clarke, A. D., Kapustin, V., Shinozuka, Y., Howell, S. G., Anderson, B. E., Winstead, E., Dibb, J., Scheuer, E., Cohen, R. C., Wooldridge, P., Perring, A., Huey, L. G., Kim, S., Jimenez, J. L., Dunlea, E. J., DeCarlo, P. F., Wennberg, P. O., Crounse, J. D., Weinheimer, A. J., Flocke, F.

“…In-situ airborne measurements of trace gases, aerosol size distributions, chemistry and optical properties were conducted over Mexico and the Eastern North…”
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Characterization of on-road vehicle emissions in the Mexico City Metropolitan Area using a mobile laboratory in chase and fleet average measurement modes during the MCMA-2003 field campaign by Zavala, M., Herndon, S. C., Slott, R. S., Dunlea, E. J., Marr, L. C., Shorter, J. H., Zahniser, M., Knighton, W. B., Rogers, T. M., Kolb, C. E., Molina, L. T., Molina, M. J.

“…A mobile laboratory was used to measure on-road vehicle emission ratios during the MCMA-2003 field campaign held during the spring of 2003 in the Mexico City…”
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Aerosol optical properties relevant to regional remote sensing of CCN activity and links to their organic mass fraction: airborne observations over Central Mexico and the US West Coast during MILAGRO/INTEX-B by Shinozuka, Y., Clarke, A. D., DeCarlo, P. F., Jimenez, J. L., Dunlea, E. J., Roberts, G. C., Tomlinson, J. M., Collins, D. R., Howell, S. G., Kapustin, V. N., McNaughton, C. S., Zhou, J.

“…Remote sensing of cloud condensation nuclei (CCN) would help evaluate the indirect effects of tropospheric aerosols on clouds and climate. To assess its…”
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Characterization of particle cloud droplet activity and composition in the free troposphere and the boundary layer during INTEX-B by Roberts, G. C., Day, D. A., Russell, L. M., Dunlea, E. J., Jimenez, J. L., Tomlinson, J. M., Collins, D. R., Shinozuka, Y., Clarke, A. D.

“…Measurements of cloud condensation nuclei (CCN), aerosol size distributions, and submicron aerosol composition were made as part of the Intercontinental…”
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Fast airborne aerosol size and chemistry measurements above Mexico City and Central Mexico during the MILAGRO campaign by DeCarlo, P. F., Dunlea, E. J., Kimmel, J. R., Aiken, A. C., Sueper, D., Crounse, J., Wennberg, P. O., Emmons, L., Shinozuka, Y., Clarke, A., Zhou, J., Tomlinson, J., Collins, D. R., Knapp, D., Weinheimer, A. J., Montzka, D. D., Campos, T., Jimenez, J. L.

“…The concentration, size, and composition of non-refractory submicron aerosol (NR-PM1) was measured over Mexico City and central Mexico with a High-Resolution…”
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Total observed organic carbon (TOOC) in the atmosphere: a synthesis of North American observations by Heald, C. L., Goldstein, A. H., Allan, J. D., Aiken, A. C., Apel, E., Atlas, E. L., Baker, A. K., Bates, T. S., Beyersdorf, A. J., Blake, D. R., Campos, T., Coe, H., Crounse, J. D., DeCarlo, P. F., de Gouw, J. A., Dunlea, E. J., Flocke, F. M., Fried, A., Goldan, P., Griffin, R. J., Herndon, S. C., Holloway, J. S., Holzinger, R., Jimenez, J. L., Junkermann, W., Kuster, W. C., Lewis, A. C., Meinardi, S., Millet, D. B., Onasch, T., Polidori, A., Quinn, P. K., Riemer, D. D., Roberts, J. M., Salcedo, D., Sive, B., Swanson, A. L., Talbot, R., Warneke, C., Weber, R. J., Weibring, P., Wennberg, P. O., Worsnop, D. R., Wittig, A. E., Zhang, R., Zheng, J., Zheng, W.

“…Measurements of organic carbon compounds in both the gas and particle phases made upwind, over and downwind of North America are synthesized to examine the…”
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Vehicle fleet emissions of black carbon, polycyclic aromatic hydrocarbons, and other pollutants measured by a mobile laboratory in Mexico City by Jiang, M., Marr, L. C., Dunlea, E. J., Herndon, S. C., Jayne, J. T., Kolb, C. E., Knighton, W. B., Rogers, T. M., Zavala, M., Molina, L. T., Molina, M. J.

“…Black carbon (BC) and polycyclic aromatic hydrocarbons (PAHs) are of concern due to their effects on climate and health. The main goal of this research is to…”
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Analysis of aircraft and satellite measurements from the Intercontinental Chemical Transport Experiment (INTEX-B) to quantify long-range transport of East Asian sulfur to Canada by van Donkelaar, A., Martin, R. V., Leaitch, W. R., Macdonald, A. M., Walker, T. W., Streets, D. G., Zhang, Q., Dunlea, E. J., Jimenez, J. L., Dibb, J. E., Huey, L. G., Weber, R., Andreae, M. O.

“…We interpret a suite of satellite, aircraft, and ground-based measurements over the North Pacific Ocean and western North America during April–May 2006 as part…”
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Changes in the photochemical environment of the temperate North Pacific troposphere in response to increased Asian emissions by Parrish, D. D., Dunlea, E. J., Atlas, E. L., Schauffler, S., Donnelly, S., Stroud, V., Goldstein, A. H., Millet, D. B., McKay, M., Jaffe, D. A., Price, H. U., Hess, P. G., Flocke, F., Roberts, J. M.

“…Measurements during the Intercontinental Transport and Chemical Transformation 2002 (ITCT 2K2) field study characterized the springtime, eastern Pacific ozone…”
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A regional scale modeling analysis of aerosol and trace gas distributions over the eastern Pacific during the INTEX-B field campaign by Adhikary, B., Carmichael, G. R., Kulkarni, S., Wei, C., Tang, Y., D'Allura, A., Mena-Carrasco, M., Streets, D. G., Zhang, Q., Pierce, R. B., Al-Saadi, J. A., Emmons, L. K., Pfister, G. G., Avery, M. A., Barrick, J. D., Blake, D. R., Brune, W. H., Cohen, R. C., Dibb, J. E., Fried, A., Heikes, B. G., Huey, L. G., O'Sullivan, D. W., Sachse, G. W., Shetter, R. E., Singh, H. B., Campos, T. L., Cantrell, C. A., Flocke, F. M., Dunlea, E. J., Jimenez, J. L., Weinheimer, A. J., Crounse, J. D., Wennberg, P. O., Schauer, J. J., Stone, E. A., Jaffe, D. A., Reidmiller, D. R.

“…The Sulfur Transport and dEposition Model (STEM) is applied to the analysis of observations obtained during the Intercontinental Chemical Transport…”
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