Cohen, Ronald C. - University of California, Berkeley

个人简介

Ronald C. Cohen attended Wesleyan University where he received his BA with high honors in 1985. He attended graduate school at the University of California, Berkeley, where he received his Ph.D. under the supervision of Richard Saykally in 1991. From 1991-1996 he was Postdoctoral Fellow and then a Research Associate at Harvard University with James G. Anderson. In 1995 he joined the faculty at the University of California at Berkeley as an Assistant Professor of Chemistry and of Earth and Planetary Science. He was promoted to Associate Professor in 2002. He is a Faculty Scientist, in the Energy and Environment Technologies Division, LBNL (1996-present). In 2006-2007 he was a Visiting Professor, Max Planck Institute for Chemistry, Division of Biogeochemistry, Mainz, Germany. Cohen has shared the NASA Group Achievement Award, in 2005 and in 1998. He has received awards from the Hellman Family Faculty Fund, (1999); and a Regents Junior Faculty Fellowship, (1998). He is an Editor of the open access journal Atmospheric Chemistry and Physics.

研究领域

Atmospheric Chemistry — A chemical perspective on the effects of human activity on the Earth's atmosphere and on exchanges between the atmosphere and biosphere Professor Cohen's research focuses on developing and applying new experimental and modeling strategies for understanding the chemical composition of the Earth's atmosphere now and in the past and for predicting future changes. Current research focuses on the role of nitrogen oxides and on the isotopes of water. Laboratory, ground-based, airborne and space-based measurements are combined with modeling to understand the atmospheric residence time of nitrogen oxides, their impact on oxidants on regional and global scales, their interactions with the biosphere and their consequences for aerosol properties. Laboratory and field studies of water isotopes are used to understand cloud properties and to diagnose the regional and global behavior of the hydrologic cycle. Development of instrumentation that permits detection of previously unobserved chemicals or those chemicals whose distribution is poorly quantified continues to be at the core of this research program.

近期论文

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P. Zoogman, X. Liu, R. M. Suleiman, W. F. Pennington, D. E. Flittner, J. A. Al-Saadi, B. B. Hilton, D. K. Nicks, M. J. Newchurch, J. L. Carr, S. J. Janz, M. R. Andraschko, A. Arola, B. D. Baker, B. P. Canova, C. Chan Miller, R. C. Cohen, J. E. Davis, M. E. Dussault, D. P. Edwards, J. Fishman, A. Ghulam, G. González Abad, M. Grutter, J. R. Herman, J. Houck, D. J. Jacob, J. Joiner, B. J. Kerridge, J. Kim, N. A. Krotkov, L. Lamsal, C. Li, A. Lindfors, R. V. Martin, C. T. McElroy, C. McLinden, V. Natraj, D. O. Neil, C. R. Nowlan, E. J. O'Sullivan, P. I. Palmer, R. B. Pierce, M. R. Pippin, A. Saiz-Lopez, R. J. D. Spurr, J. J. Szykman, O. Torres, J. P. Veefkind, B. Veihelmann, H. Wang, J. Wang, and K. Chance, Tropospheric emissions: Monitoring of pollution (TEMPO), J. Quant. Spectrosc. Rad. Trans. 186, 17-39, 2017. P. A. Feiner, W. H. Brune, D. O. Miller, L. Zhang, R. C. Cohen, P. S. Romer, A. H. Goldstein, F. N. Keutsch, K. M. Skog, P. O. Wennberg, T. B. Nguyen, A. P. Teng, J. DeGouw, A. Koss, R. J. Wild, S. S. Brown, A. Guenther, E. Edgerton, K. Baumann, and J. L. Fry, Testing Atmospheric Oxidation in an Alabama Forest, J. Atmos. Sci. 73, 4699-4710, 2016. J. Mao, A. Carlton, R. C. Cohen, W. H. Brune, J. L. Jimenez, H. O. T. Pye, N. L. Ng, B. McDonald, C. Warneke, J. Gouw, L. J. Mickley, E. M. Leibensperger, R. Mathur, and L. Horowitz, Southeast Atmosphere Studies: learning from model-observation syntheses, Atmos. Chem. Phys. Discuss., 1-52, 2016. J. L. Laughner, A. Zare, and R. C. Cohen, Effects of daily meteorology on the interpretation of space-based remote sensing of NO2, Atmos. Chem. Phys. 16, 15247-15264, 2016. K. R. Travis, D. J. Jacob, J. A. Fisher, P. S. Kim, E. A. Marais, L. Zhu, K. Yu, C. C. Miller, R. M. Yantosca, M. P. Sulprizio, A. M. Thompson, P. O. Wennberg, J. D. Crounse, J. M. St. Clair, R. C. Cohen, J. L. Laughner, J. E. Dibb, S. R. Hall, K. Ullmann, G. M. Wolfe, I. B. Pollack, J. Peischl, J. A. Neuman, and X. Zhou, Why do models overestimate surface ozone in the Southeast United States?, Atmos. Chem. Phys. 16, 13561-13577, 2016. A. J. Turner, A. A. Shusterman, B. C. McDonald, V. Teige, R. A. Harley, and R. C. Cohen, Network design for quantifying urban CO2 emissions: assessing trade-offs between precision and network density, Atmos. Chem. Phys. 16, 13465-13475, 2016. A. A. Shusterman, V. E. Teige, A. J. Turner, C. Newman, J. Kim, and R. C. Cohen, The BErkeley Atmospheric CO2 Observation Network: initial evaluation, Atmos. Chem. Phys. 16, 13449-13463, 2016. X. Liu, A. P. Mizzi, J. L. Anderson, I. Fung, and R. C. Cohen, Assimilation of satellite NO2 observations at high spatial resolution, Atmos. Chem. Phys. Discuss., 1-18, 2016. N. L. Ng, S. S. Brown, A. T. Archibald, E. Atlas, R. C. Cohen, J. N. Crowley, D. A. Day, N. M. Donahue, J. L. Fry, H. Fuchs, R. J. Griffin, M. I. Guzman, H. Hermann, A. Hodzic, Y. Iinuma, J. L. Jimenez, A. Kiendler-Scharr, B. H. Lee, D. J. Luecken, J. Mao, R. McLaren, A. Mutzel, H. D. Osthoff, B. Ouyang, B. Picquet-Varrault, U. Platt, H. O. T. Pye, Y. Rudich, R. H. Schwantes, M. Shiraiwa, J. Stutz, J. A. Thornton, A. Tilgner, B. J. Williams, and R. A. Zaveri, Nitrate radicals and biogenic volatile organic compounds: oxidation, mechanisms and organic aerosol, Atmos. Chem. Phys. Discuss., 1-111, 2016. P. S. Romer, K. C. Duffey, P. J. Wooldridge, H. M. Allen, B. R. Ayres, S. S. Brown, W. H. Brune, J. D. Crounse, J. Gouw, D. C. Draper, P. A. Feiner, J. L. Fry, A. H. Goldstein, A. Koss, P. K. Misztal, T. B. Nguyen, K. Olson, A. P. Teng, P. O. Wennberg, R. J. Wild, L. Zhang, and R. C. Cohen, The lifetime of nitrogen oxides in an isoprene-dominated forest, Atmos. Chem. Phys. 16, 7623-7637, 2016. J. A. Fisher, D. J. Jacob, K. R. Travis, P. S. Kim, E. A. Marais, C. Chan Miller, K. Yu, L. Zhu, R. M. Yantosca, M. P. Sulprizio, J. Mao, P. O. Wennberg, J. D. Crounse, A. P. Teng, T. B. Nguyen, J. M. St. Clair, R. C. Cohen, P. Romer, B. A. Nault, P. J. Wooldridge, J. L. Jimenez, P. Campuzano-Jost, D. A. Day, W. Hu, P. B. Shepson, F. Xiong, D. R. Blake, A. H. Goldstein, P. K. Misztal, T. F. Hanisco, G. M. Wolfe, T. B. Ryerson, A. Wisthaler, and T. Mikoviny, Organic nitrate chemistry and its implications for nitrogen budgets in an isoprene- and monoterpene-rich atmosphere: constraints from aircraft (SEAC4RS) and ground-based (SOAS) observations in the Southeast US, Atmos. Chem. Phys. 16, 5969-5991, 2016. K. Yu, D. J. Jacob, J. A. Fisher, P. S. Kim, E. A. Marais, C. C. Miller, K. R. Travis, L. Zhu, R. M. Yantosca, M. P. Sulprizio, R. C. Cohen, J. E. Dibb, A. Fried, T. Mikoviny, T. B. Ryerson, P. O. Wennberg, and A. Wisthaler, Sensitivity to grid resolution in the ability of a chemical transport model to simulate observed oxidant chemistry under high-isoprene conditions, Atmos. Chem. Phys. 16, 4369-4378, 2016. M. C. Barth, M. M. Bela, A. Fried, P. O. Wennberg, J. D. Crounse, J. M. St. Clair, N. J. Blake, D. R. Blake, C. R. Homeyer, W. H. Brune, L. Zhang, J. Mao, X. Ren, T. B. Ryerson, I. B. Pollack, J. Peischl, R. C. Cohen, B. A. Nault, L. G. Huey, X. Liu, and C. A. Cantrell, Convective transport and scavenging of peroxides by thunderstorms observed over the central U.S. during DC3, J. Geophys. Res. Atmos. 121, 4272-4295, 2016. S. E. Pusede, K. C. Duffey, A. A. Shusterman, A. Saleh, J. L. Laughner, P. J. Wooldridge, Q. Zhang, C. L. Parworth, H. Kim, S. L. Capps, L. C. Valin, C. D. Cappa, A. Fried, J. Walega, J. B. Nowak, A. J. Weinheimer, R. M. Hoff, T. A. Berkoff, A. J. Beyersdorf, J. Olson, J. H. Crawford, and R. C. Cohen, On the effectiveness of nitrogen oxide reductions as a control over ammonium nitrate aerosol, Atmos. Chem. Phys. 16, 2575-2596, 2016. B. H. Lee, C. Mohr, F. D. Lopez-Hilfiker, A. Lutz, M. Hallquist, L. Lee, P. Romer, R. C. Cohen, S. Iyer, T. Kurtén, W. Hu, D. A. Day, P. Campuzano-Jost, J. L. Jimenez, L. Xu, N. L. Ng, H. Guo, R. J. Weber, R. J. Wild, S. S. Brown, A. Koss, J. Gouw, K. Olson, A. H. Goldstein, R. Seco, S. Kim, K. McAvey, P. B. Shepson, T. Starn, K. Baumann, E. S. Edgerton, J. Liu, J. E. Shilling, D. O. Miller, W. Brune, S. Schobesberger, E. L. D'Ambro, and J. A. Thornton, Highly functionalized organic nitrates in the southeast United States: Contribution to secondary organic aerosol and reactive nitrogen budgets, Proc. Natl. Acad. Sci. U. S. A. 113, 1516-21, 2016. V. Gérard, B. Nozière, C. Baduel, L. Fine, A. A. Frossard, and R. C. Cohen, Anionic, Cationic, and Nonionic Surfactants in Atmospheric Aerosols from the Baltic Coast at Askö, Sweden: Implications for Cloud Droplet Activation, Environ. Sci. Technol. 50, 2974-2982, 2016. C. Cai, S. Kulkarni, Z. Zhao, A. P. Kaduwela, J. C. Avise, J. A. DaMassa, H. B. Singh, A. J. Weinheimer, R. C. Cohen, G. S. Diskin, P. Wennberg, J. E. Dibb, G. Huey, A. Wisthaler, J. L. Jimenez, and M. J. Cubison, Simulating reactive nitrogen, carbon monoxide, and ozone in California during ARCTAS-CARB 2008 with high wildfire activity, Atmos. Environ. 128, 28-44, 2016. R. J. Wild, P. M. Edwards, T. S. Bates, R. C. Cohen, J. A. Gouw, W. P. Dubé, J. B. Gilman, J. Holloway, J. Kercher, A. R. Koss, L. Lee, B. M. Lerner, R. McLaren, P. K. Quinn, J. M. Roberts, J. Stutz, J. A. Thornton, P. R. Veres, C. Warneke, E. Williams, C. J. Young, B. Yuan, K. J. Zarzana, and S. S. Brown, Reactive nitrogen partitioning and its relationship to winter ozone events in Utah, Atmos. Chem. Phys. 16, 573-583, 2016. W. H. Brune, B. C. Baier, J. Thomas, X. Ren, R. C. Cohen, S. E. Pusede, E. C. Browne, A. H. Goldstein, D. R. Gentner, F. N. Keutsch, J. A. Thornton, S. Harrold, F. D. Lopez-Hilfiker, and P. O. Wennberg, Ozone production chemistry in the presence of urban plumes, Faraday Discuss. 189, 169-189, 2016. B. A. Nault, C. Garland, P. J. Wooldridge, W. H. Brune, P. Campuzano-Jost, J. D. Crounse, D. A. Day, J. Dibb, S. R. Hall, L. G. Huey, J. L. Jimenez, X. Liu, J. Mao, T. Mikoviny, J. Peischl, I. B. Pollack, X. Ren, T. B. Ryerson, E. Scheuer, K. Ullmann, P. O. Wennberg, A. Wisthaler, L. Zhang, and R. C. Cohen, Observational Constraints on the Oxidation of NOx in the Upper Troposphere, J. Phys. Chem. A 120, 1468-1478, 2016. B. R. Ayres, H. M. Allen, D. C. Draper, S. S. Brown, R. J. Wild, J. L. Jimenez, D. A. Day, P. Campuzano-Jost, W. Hu, J. Gouw, A. Koss, R. C. Cohen, K. C. Duffey, P. Romer, K. Baumann, E. Edgerton, S. Takahama, J. A. Thornton, B. H. Lee, F. D. Lopez-Hilfiker, C. Mohr, P. O. Wennberg, T. B. Nguyen, A. Teng, A. H. Goldstein, K. Olson, and J. L. Fry, Organic nitrate aerosol formation via NO3 + biogenic volatile organic compounds in the southeastern United States, Atmos. Chem. Phys. 15, 13377-13392, 2015. S. E. Pusede, T. C. VandenBoer, J. G. Murphy, M. Z. Markovic, C. J. Young, P. R. Veres, J. M. Roberts, R. A. Washenfelder, S. S. Brown, X. Ren, C. Tsai, J. Stutz, W. H. Brune, E. C. Browne, P. J. Wooldridge, A. R. Graham, R. Weber, A. H. Goldstein, S. Dusanter, S. M. Griffith, P. S. Stevens, B. L. Lefer, and R. C. Cohen, An Atmospheric Constraint on the NO2 Dependence of Daytime Near-Surface Nitrous Acid (HONO), Environ. Sci. Technol. 49, 12774-12781, 2015. L. C. Brent, W. J. Thorn, M. Gupta, B. Leen, J. W. Stehr, H. He, H. L. Arkinson, A. Weinheimer, C. Garland, S. E. Pusede, P. J. Wooldridge, R. C. Cohen, and R. R. Dickerson, Evaluation of the use of a commercially available cavity ringdown absorption spectrometer for measuring NO2 in flight, and observations over the Mid-Atlantic States, during DISCOVER-AQ, J. Atmos. Chem. 72, 503-521, 2015. L. Lee, P. J. Wooldridge, J. deGouw, S. S. Brown, T. S. Bates, P. K. Quinn, and R. C. Cohen, Particulate organic nitrates observed in an oil and natural gas production region during wintertime, Atmos. Chem. Phys. 15, 9313-9325, 2015. L. K. Emmons, S. R. Arnold, S. A. Monks, V. Huijnen, S. Tilmes, K. S. Law, J. L. Thomas, J.-C. Raut, I. Bouarar, S. Turquety, Y. Long, B. Duncan, S. Steenrod, S. Strode, J. Flemming, J. Mao, J. Langner, A. M. Thompson, D. Tarasick, E. C. Apel, D. R. Blake, R. C. Cohen, J. Dibb, G. S. Diskin, A. Fried, S. R. Hall, L. G. Huey, A. J. Weinheimer, A. Wisthaler, T. Mikoviny, J. Nowak, J. Peischl, J. M. Roberts, T. Ryerson, C. Warneke, and D. Helmig, The POLARCAT Model Intercomparison Project (POLMIP): overview and evaluation with observations, Atmos. Chem. Phys. 15, 6721-6744, 2015.