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Fundamental and Computational Sciences Directorate

Staff information


Rahul Zaveri

Atmospheric Measurement & Data Sciences


Rahul Zaveri has a wide range of research experience in investigating the fate of anthropogenic and biogenic trace gas and aerosol emissions and their effects on air quality and climate change. His expertise is in modeling the complex physical and chemical processes occurring in the gas-, aerosol-, and cloud-phases and their climate-related properties. He is the scientific lead for the gas-phase photochemical mechanism CBM-Z and the comprehensive aerosol model MOSAIC, which have been implemented in the fully-coupled meteorology-chemistry model WRF-Chem. Dr. Zaveri has also participated in and led field campaigns to study the formation and evolution of oxidants and aerosols and their climate-related properties downwind of large urban areas.

Research Interests

  • Secondary organic and inorganic aerosol formation
  • Gas-phase photochemistry and heterogeneous reactions
  • Gas-particle mass transfer
  • Aerosol mixing state and its effects on optical and CCN activation properties
  • Lagrangian and Eulerian modeling of aerosol formation, aging, and transport

Education and Credentials

  • Post-doctoral, Atmospheric Sciences, Pacific Northwest National Laboratory
  • Ph.D., Chemical Engineering, Virginia Tech
  • M.S., Chemical Engineering, University of Kentucky
  • B.S., Chemical Engineering, University of Bombay

Affiliations and Professional Service

  • American Geophysical Union
  • American Association for Aerosol Research
  • Sigma Xi

Awards and Recognitions

  • Outstanding Performance Award, Fundamental Science Directorate, Pacific Northwest National Laboratory, 10/05
  • Associated Western Universities Postgraduate Fellowship, Pacific Northwest National Laboratory, 7/97 to 7/98
  • Graduate Research Assistantship, Department of Chemical Engineering, Virginia Tech, 8/93 to 6/97
  • Graduate Research Assistantship, Department of Chemical Engineering, University of Kentucky, 10/91 to 8/93

PNNL Publications


  • Zaveri RA, JE Shilling, A Zelenyuk-Imre, J Liu, DM Bell, E D'Ambro, C Gaston, JA Thornton, A Laskin, P Lin, JM Wilson, RC Easter, Jr, J Wang, AK Bertram, ST Martin, JH Seinfeld, and D Worsnop. 2018. "Growth kinetics and size distribution dynamics of viscous secondary organic aerosol." Environmental Science & Technology 52(3):1191-1199.  doi:10.1021/acs.est.7b04623


  • Bateman AP, ZH Gong, T Harder, S de Sa, B Wang, P Castillo, S China, YJ Liu, R O'Brien, BB Palm, HW Shiu, G Cirino, RM Thalman, K Adachi, ML Alexander, P Artaxo, AK Bertram, PR Buseck, MK Gilles, JL Jimenez, A Laskin, A Manzi, AJ Sedlacek, III, RA Souza, J Wang, RA Zaveri, and ST Martin. 2017. "Anthropogenic influences on the physical state of submicron particulate matter over a tropical forest." Atmospheric Chemistry and Physics 17(3):1759-1773.  doi:10.5194/acp-17-1759-2017
  • D'Ambro E, BH Lee, J Liu, JE Shilling, CJ Gaston, FD Lopez-Hilfiker, S Schobesberger, RA Zaveri, C Mohr, A Lutz, Z Zhang, A Gold, JD Surratt, J Rivera-Rios, FN Keutsch, and JA Thornton. 2017. "Molecular composition and volatility of isoprene photochemical oxidation secondary organic aerosol under low and high NOx conditions." Atmospheric Chemistry and Physics 17(1):159-174.  doi:10.5194/acp-17-159-2017
  • Gyawali MS, WP Arnott, RA Zaveri, C Song, B Flowers, MK Dubey, A Setyan, Q Zhang, S China, C Mazzoleni, K Gorkowski, R Subramanian, and H Moosmuller. 2017. "Evolution of Multispectral Aerosol Absorption Properties in a Biogenically-Influenced Urban Environment during the CARES Campaign." Atmosphere 8(11):217.  doi:10.3390/atmos8110217
  • Murphy BN, MC Woody, JL Jimenez, AG Carlton, P Hayes, S Liu, NL Ng, LM Russell, A Setyan, L Xu, J Young, RA Zaveri, Q Zhang, and HO Pye. 2017. "Semivolatile POA and parameterized total combustion SOA in CMAQv5.2: impacts on source strength and partitioning." Atmospheric Chemistry and Physics 17(18):11107-11133.  doi:10.5194/acp-17-11107-2017
  • Ng NL, S Brown, AT Archibald, E Atlas, RC Cohen, JN Crowley, DA Day, NM Donahue, JL Fry, H Fuchs, R Griffin, MI Guzman, H Herrmann, A Hodzic, Y Iinuma, JL Jimenez, A Kiendler-Scharr, BH Lee, D Luecken, J Mao, R Mclaren, A Mutzel, H Osthoff, B Ouyang, B Picquet-Varrault, U Platt, HO Pye, Y Rudich, RH Schwantes, M Shiraiwa, J Stutz, JA Thornton, A Tilgner, BJ Williams, and RA Zaveri. 2017. "Nitrate radicals and biogenic volatile organic compounds: oxidation, mechanisms and organic aerosol." Atmospheric Chemistry and Physics 17(3):2103-2162.  doi:10.5194/acp-17-2103-2017
  • O'Meara S, D Topping, RA Zaveri, and G McFiggans. 2017. "An efficient approach for treating composition-dependent diffusion within organic particles." Atmospheric Chemistry and Physics 17(17):10477-10494.  doi:10.5194/acp-17-10477-2017
  • Shrivastava MKB, C Cappa, J Fan, AH Goldstein, AB Guenther, JL Jimenez, C Kuang, A Laskin, ST Martin, NL Ng, T Petaja, J Pierce, PJ Rasch, P Roldin, JH Seinfeld, JE Shilling, JN Smith, JA Thornton, RM Volkamer, J Wang, D Worsnop, RA Zaveri, A Zelenyuk-Imre, and Q Zhang. 2017. "Recent advances in understanding secondary organic aerosol: implications for global climate forcing." Reviews of Geophysics 55(2):509-559.  doi:10.1002/2016RG000540
  • Zhong S, and RA Zaveri. 2017. "Atmospheric aerosols." In The International Encyclopedia of Geography: People, the Earth, Environment and Technology, ed. D. Richardson, et al.  John Wiley and Sons, HOBOKEN, NJ.  doi:10.1002/9781118786352.wbieg0304


  • Ching PP, RA Zaveri, RC Easter, Jr, N Riemer, and JD Fast. 2016. "A three-dimensional sectional representation of aerosol mixing state for simulating optical properties and cloud condensation nuclei." Journal of Geophysical Research. D. (Atmospheres) 121(10):5912-5929.  doi:10.1002/2015JD024323
  • Liu J, E D'Ambro, BH Lee, FD Lopez-Hilfiker, RA Zaveri, J Rivera-Rios, FN Keutsch, S Iyer, T Kurten, Z Zhang, A Gold, JD Surratt, JE Shilling, and JA Thornton. 2016. "Efficient isoprene secondary organic aerosol formation from a non-IEPOX pathway." Environmental Science & Technology 50(18):9872-9880.  doi:10.1021/acs.est.6b01872
  • Bateman AP, ZH Gong, P Liu, B Sato, G Cirino, Y Zhang, P Artaxo, AK Bertram, A Manzi, LV Rizzo, RA Souza, RA Zaveri, and ST Martin. 2016. "Sub-micrometre Particulate Matter is Primarily in Liquid Form over Amazon Rainforests." Nature Geoscience 9(1):34-37.  doi:10.1038/ngeo2599
  • Cappa C, KR Kolesar, X Zhang, DB Atkinson, MS Pekour, RA Zaveri, A Zelenyuk, and Q Zhang. 2016. "Understanding the Optical Properties of Ambient Sub- and Supermicron Particulate Matter: Results from the CARES 2010 Field Study in Northern California." Atmospheric Chemistry and Physics 16(10):6511-6535.  doi:10.5194/acp-16-6511-2016
  • Fast JD, LK Berg, K Zhang, RC Easter, Jr, RA Ferrare, J Hair, CA Hostetler, Y Liu, I Ortega, A Sedlacek, JE Shilling, MKB Shrivastava, SR Springston, JM Tomlinson, RM Volkamer, JM Wilson, RA Zaveri, and A Zelenyuk-Imre. 2016. "Model Representations of Aerosol Layers Transported from North America over the Atlantic Ocean during the Two-Column Aerosol Project." Journal of Geophysical Research. D. (Atmospheres) 121(16):9814-9848.  doi:10.1002/2016JD025248
  • Kleinman LI, C Kuang, A Sedlacek, GI Senum, SR Springston, J Wang, Q Zhang, JT Jayne, JD Fast, JM Hubbe, JE Shilling, and RA Zaveri. 2016. "What do Correlations tell us about Anthropogenic - Biogenic Interactions and SOA Formation in the Sacramento Plume during CARES?" Atmospheric Chemistry and Physics 16(3):1729-1746.  doi:10.5194/acp-16-1729-2016
  • Kulkarni GR, S China, S Liu, MI Nandasiri, N Sharma, JM Wilson, AC Aiken, D Chand, A Laskin, C Mazzoleni, MS Pekour, JE Shilling, V Shutthanandan, A Zelenyuk, and RA Zaveri. 2016. "Ice nucleation activity of diesel soot particles at Cirrus relevant conditions: Effects of hydration, secondary organics coating, hydration, soot morphology, and coagulation." Geophysical Research Letters 43(7):3580-3588.  doi:10.1002/2016GL068707
  • Liu P, YJ Li, Y Wang, MK Giles, RA Zaveri, AK Bertram, and ST Martin. 2016. "Lability of Secondary Organic Particulate Matter." Proceedings of the National Academy of Sciences of the United States of America 113(45):12643-12648.  doi:10.1073/pnas.1603138113
  • Song M, P Liu, S Hanna, RA Zaveri, K Potter, Y You, ST Martin, and AK Bertram. 2016. "Relative humidity--dependent viscosity of secondary organic material from toluene  photo--oxidation and possible implications for organic particulate matter over megacities." Atmospheric Chemistry and Physics 16(14):8817-8830.  doi:10.5194/acp-16-8817-2016


  • Lupascu A, RC Easter, Jr, RA Zaveri, MKB Shrivastava, MS Pekour, JM Tomlinson, Q Yang, H Matsui, A Hodzic, Q Zhang, and JD Fast. 2015. "Modeling particle nucleation and growth over northern California during the 2010 CARES campaign." Atmospheric Chemistry and Physics 15(21):12283-12313.  doi:10.5194/acp-15-12283-2015
  • China S, GR Kulkarni, B Scarnatio, N Sharma, MS Pekour, JE Shilling, JM Wilson, A Zelenyuk, D Chand, S Liu, A Aiken, MK Dubey, A Laskin, RA Zaveri, and C Mazzoleni. 2015. "Morphology Of Diesel Soot Residuals From Supercooled Water Droplets And Ice Crystals: Implications For Optical Properties." Environmental Research Letters 10:114010.  doi:10.1088/1748-9326/10/11/114010
  • Lowe D, S Archer-Nicholls, W Morgan, JD Allan, S Utembe, B Ouyang, E Aruffo, M Le Breton, RA Zaveri, P di Carlo, C Percival, H Coe, RL Jones, and G McFiggans. 2015. "WRF-Chem Model Predictions of the Regional Impacts of N2O5 Heterogeneous Processes on Night-Time Chemistry over North-Western Europe." Atmospheric Chemistry and Physics 15(3):1385-1409.  doi:10.5194/acp-15-1385-2015


  • Archer-Nicholls S, D Lowe, S Utembe, JD Allan, RA Zaveri, JD Fast, O Hodnebrog, H Denier van der Gon, and G McFiggans. 2014. "Gaseous Chemistry and Aerosol Mechanism Developments for Version 3.5.1 of the Online Regional Model, WRF-Chem." Geoscientific Model Development 7(6):2557-2579.  doi:10.5194/gmd-7-2557-2014
  • Fast JD, JD Allan, R Bahreini, JS Craven, L Emmons, RA Ferrare, PL Hayes, A Hodzic Roux, J Holloway, CA Hostetler, JL Jimenez, H Jonsson, S Liu, Y Liu, A Metcalf, AM Middlebrook, J Nowak, MS Pekour, A Perring, L Russell, A Sedlacek, JH Seinfeld, A Setyan, JE Shilling, MKB Shrivastava, S Springston, C Song, R Subramanian, JW Taylor, V Vinoj, Q Yang, RA Zaveri, and Q Zhang. 2014. "Modeling regional aerosol and aerosol precursor variability over California and its sensitivity to emissions and long-range transport during the 2010 CalNex and CARES campaigns." Atmospheric Chemistry and Physics 14(18):10013-10060.  doi:10.5194/acp-14-10013-2014
  • Kaiser JC, J Hendricks, M Righi, N Riemer, RA Zaveri, S Metzger, and V Aquila. 2014. "The MESSy aerosol submodel MADE3 (v2.0b): description and a box model test." Geoscientific Model Development 7(3):1137-1157.  doi:10.5194/gmd-7-1137-2014
  • Liu AT, RA Zaveri, and JH Seinfeld. 2014. "Technical Note: Analytical Solution for Transient Partitioning and Reaction of a Condensing Vapor Species in a Droplet." Atmospheric Environment 89:651-654.  doi:10.1016/j.atmosenv.2014.02.065
  • Steiner AL, AB Tawfik, A Shalaby, AS Zakey, MM Abdel Wahab, Z Salah, F Solmon, S Sillman, and RA Zaveri. 2014. "Climatological simulations of ozone and atmospheric aerosols in the Greater Cairo region." Climate Research 59(3):207-228.  doi:10.3354/cr01211
  • Tsigaridis K, N Daskalakis, M Kanakidou, PJ Adams, P Artaxo, R Bahadur, Y Balkanski, S Bauer, N Bellouin, A Benedetti, T Bergman, T Berntsen, JP Beukes, H Bian, KS Carslaw, M Chin, G Curci, T Diehl, RC Easter, Jr, SJ Ghan, S Gong, A Hodzic, CR Hoyle, T Iversen, S Jathar, JL Jimenez, JW Kaiser, A Kirkevag, D Koch, H Kokkola, YH Lee, G Lin, X Liu, G Luo, X Ma, GW Mann, N Mihalopoulos, JJ Morcrette, JF Muller, G Myhre, S Myriokefalitakis, NL Ng, D O'Donell, JE Penner, L Pozzoli, KJ Pringle, L Russell, M Schulz, J Sciare, O Seland, D Shindell, S Sillman, RB Skeie, DV Spracklen, T Stavrakou, SD Steenrod, T Takemura, P Tiitta, S Tilmes, H Tost, T van Noije, PG van Zyl, K von Salzen, F Yu, Z Wang, Z Wang, RA Zaveri, H Zhang, K Zhang, Q Zhang, and X Zhang. 2014. "The AeroCom Evaluation and Intercomparison of Organic Aerosol in Global Models." Atmospheric Chemistry and Physics 14(19):10845-10895.  doi:10.5194/acp-14-10845-2014
  • Zaveri RA, RC Easter, Jr, JE Shilling, and JH Seinfeld. 2014. "Modeling kinetic partitioning of secondary organic aerosol and size distribution dynamics: representing effects of volatility, phase state, and particle-phase reaction." Atmospheric Chemistry and Physics 14(10):5153-5181.  doi:10.5194/acp-14-5153-2014


  • Shilling JE, RA Zaveri, JD Fast, LI Kleinman, ML Alexander, MR Canagaratna, E Fortner, JM Hubbe, JT Jayne, A Sedlacek, A Setyan, S Springston, DR Worsnop, and Q Zhang. 2013. "Enhanced SOA formation from mixed anthropogenic and biogenic emissions during the CARES campaign." Atmospheric Chemistry and Physics 13(4):2091-2113.  doi:10.5194/acp-13-2091-2013
  • Cappa CD, TB Onasch, P Massoli, DR Worsnop, TS Bates, ES Cross, P Davidovits, J Hakala, K Hayden, BT Jobson, KR Kolesar, DA Lack, BM Lerner, SM Li, D Mellon, I Nuaaman, JN Olfert, T Petaja, PK Quinn, C Song, R Subramanian, E Williams, and RA Zaveri. 2013. "Response to Comment on “Radiative absorption enhancements due to the mixing state of atmospheric black carbon”." Science 395(6118):393.  doi:10.1126/science.1230260
  • Matsui H, M Koike, Y Kondo, N Moteki, JD Fast, and RA Zaveri. 2013. "Development and validation of a black carbon mixing state resolved three-dimensional model: Aging processes and radiative impact." Journal of Geophysical Research. D. (Atmospheres) 118(5):2304-2326.  doi:10.1029/2012JD018446
  • Moffet RC, T Rodel, ST Kelly, XY Yu, G Carroll, JD Fast, RA Zaveri, A Laskin, and MK Gilles. 2013. "Spectro-Microscopic Measurements of Carbonaceous Aerosol Aging in Central California." Atmospheric Chemistry and Physics 13(20):10445-10459.  doi:10.5194/acp-13-10445-2013
  • Shrivastava MKB, A Zelenyuk, D Imre, RC Easter, Jr, J Beranek, RA Zaveri, and JD Fast. 2013. "Implications of Low Volatility SOA and Gas-Phase Fragmentation Reactions on SOA Loadings and their Spatial and Temporal Evolution in the Atmosphere." Journal of Geophysical Research. D. (Atmospheres) 118(8):3328-3342.  doi:10.1002/jgrd.50160
  • Song C, MS Gyawali, RA Zaveri, JE Shilling, and WP Arnott. 2013. "Light Absorption by Secondary Organic Aerosol from a-Pinene: Effects of Oxidants, Seed Aerosol Acidity, and Relative Humidity." Journal of Geophysical Research. D. (Atmospheres) 118(20):11,741-11,749.  doi:10.1002/jgrd.50767
  • Zhao C, S Chen, LYR Leung, Y Qian, J Kok, RA Zaveri, and J Huang. 2013. "Uncertainty in Modeling Dust Mass Balance and Radiative Forcing from Size Parameterization." Atmospheric Chemistry and Physics 13:10733-10753.  doi:10.5194/acp-13-10733-2013


  • Liu X, RC Easter, Jr, SJ Ghan, RA Zaveri, PJ Rasch, X Shi, JF Lamarque, A Gettelman, H Morrison, F Vitt, A Conley, S Park, R Neale, C Hannay, AM Ekman, P Hess, N Mahowald, WD Collins, MJ Iacono, CS Bretherton, MG Flanner, and D Mitchell. 2012. "Toward a Minimal Representation of Aerosols in Climate Models: Description and Evaluation in the Community Atmosphere Model CAM5." Geoscientific Model Development 5(3):709-739.  doi:10.5194/gmd-5-709-2012
  • Cahill JF, K Suski, JH Seinfeld, RA Zaveri, and KA Prather. 2012. "The mixing state of carbonaceous aerosol particles in northern and southern California measured during CARES and CalNex 2010." Atmospheric Chemistry and Physics 12(22):10989-11002.  doi:10.5194/acp-12-10989-2012
  • Cappa CD, TB Onasch, P Massoli, DR Worsnop, TS Bates, ES Cross, P Davidovits, J Hakala, K Hayden, BT Jobson, KR Kolesar, DA Lack, BM Lerner, SM Li, D Mellon, I Nuaaman, J Olfert, T Petaja, PK Quinn, C Song, R Subramanian, E Williams, and RA Zaveri. 2012. "Radiative absorption enhancements due to the mixing state of atmospheric black carbon." Science 337(6098):1078-1081.  doi:10.1126/science.1223447
  • Fast JD, WI Gustafson, Jr, LK Berg, WJ Shaw, MS Pekour, MKB Shrivastava, JC Barnard, R Ferrare, CA Hostetler, J Hair, MH Erickson, T Jobson, B Flowers, MK Dubey, PhD, SR Springston, BR Pirce, L Dolislager, JR Pederson, and RA Zaveri. 2012. "Transport and Mixing Patterns over Central California during the Carbonaceous Aerosol and Radiative Effects Study (CARES)." Atmospheric Chemistry and Physics 12(4):1759-1783.  doi:10.5194/acp-12-1759-2012
  • Gantt B, J Xu, N Meskhidze, Y Zhang, A Nenes, SJ Ghan, X Liu, RC Easter, Jr, and RA Zaveri. 2012. "Global Distribution and Climate Forcing of Marine Organic Aerosol - Part 2: Effects on Cloud Properties and Radiative Forcing." Atmospheric Chemistry and Physics 12(14):6555-6563.  doi:10.5194/acp-12-6555-2012
  • Ghan SJ, X Liu, RC Easter, Jr, RA Zaveri, PJ Rasch, JH Yoon, and B Eaton. 2012. "Toward a Minimal Representation of Aerosols in Climate Models: Comparative Decomposition of Aerosol Direct, Semidirect, and Indirect Radiative Forcing." Journal of Climate 25(19):6461-6476.  doi:10.1175/JCLI-D-11-00650.1
  • Gyawali MS, WP Arnott, RA Zaveri, C Song, H Moosmuller, L Liu, M Mishchenko, LWA Chen, M Green, JG Watson, and JC Chow. 2012. "Photoacoustic optical properties at UV, VIS, and near IR wavelengths for laboratory generated and winter time ambient urban aerosols." Atmospheric Chemistry and Physics 12(5):2587-2601.  doi:10.5194/acp-12-2587-2012
  • Laskin A, RC Moffet, MK Gilles, JD Fast, RA Zaveri, B Wang, P Nigge, and JI Shutthanandan. 2012. "Tropospheric Chemistry of Internally Mixed Sea Salt and Organic Particles: Surprising Reactivity of NaCl with Weak Organic Acids." Journal of Geophysical Research. D. (Atmospheres) 117:Article No. D15302.  doi:10.1029/2012JD017743
  • Liu S, JE Shilling, C Song, N Hiranuma, RA Zaveri, and LM Russell. 2012. "Hydrolysis of organonitrate functional groups in aerosol particles." Aerosol Science and Technology 46(12):1359-1369.  doi:10.1080/02786826.2012.716175
  • Setyan A, Q Zhang, M Merkel, WB Knighton, Y Sun, C Song, JE Shilling, TB Onasch, SC Herndon, DR Worsnop, JD Fast, RA Zaveri, LK Berg, A Wiedensohler, BA Flowers, MK Dubey, and R Subramanian. 2012. "Characterization of submicron particles influenced by mixed biogenic and anthropogenic emissions using high-resolution aerosol mass spectrometry: results from CARES." Atmospheric Chemistry and Physics 12(17):8131-8156.  doi:10.5194/acp-12-8131-2012
  • Shalaby AK, AS Zakey, AB Tawfik, F Solmon, F Giorgi, F Stordal, S Sillman, RA Zaveri, and AL Steiner. 2012. "Implementation and evaluation of online gas-phase chemistry within a regional climate model (RegCM-CHEM4)." Geoscientific Model Development 5(3):741-760.  doi:10.5194/gmd-5-741-2012
  • Zaveri RA, WJ Shaw, DJ Cziczo, B Schmid, R Ferrare, ML Alexander, M Alexandrov, RJ Alvarez, WP Arnott, D Atkinson, S Baidar, RM Banta, JC Barnard, J Beranek, LK Berg, FJ Brechtel, WA Brewer, JF Cahill, B Cairns, CD Cappa, D Chand, S China, JM Comstock, MK Dubey, RC Easter, Jr, MH Erickson, JD Fast, C Floerchinger, BA Flowers, E Fortner, JS Gaffney, MK Gilles, K Gorkowski, WI Gustafson, Jr, MS Gyawali, J Hair, M Hardesty, JW Harworth, SC Herndon, N Hiranuma, CA Hostetler, JM Hubbe, JT Jayne, H Jeong, BT Jobson, EI Kassianov, LI Kleinman, CD Kluzek, B Knighton, KR Kolesar, C Kuang, A Kubatova, AO Langford, A Laskin, NS Laulainen, RD Marchbanks, C Mazzoleni, F Mei, RC Moffet, DA Nelson, M Obland, H Oetjen, TB Onasch, I Ortega, M Ottaviani, MS Pekour, KA Prather, JG Radney, R Rogers, SP Sandberg, A Sedlacek, C Senff, G Senum, A Setyan, JE Shilling, MKB Shrivastava, C Song, SR Springston, R Subramanian, K Suski, JM Tomlinson, RM Volkamer, HA Wallace, J Wang, AM Weickmann, DR Worsnop, XY Yu, A Zelenyuk, and Q Zhang. 2012. "Overview of the 2010 Carbonaceous Aerosols and Radiative Effects Study (CARES)." Atmospheric Chemistry and Physics 12(16):7647-7687.  doi:10.5194/acp-12-7647-2012


  • Berkowitz CM, LK Berg, XY Yu, ML Alexander, A Laskin, RA Zaveri, BT Jobson, E Andrews, and JA Ogren. 2011. "The Influence of Fog and Airmass History on Aerosol Optical, Physical and Chemical Properties at Pt. Reyes National Seashore." Atmospheric Environment 45(15):2259-2568.  doi:10.1016/j.atmosenv.2011.02.016
  • Dzepina K, CD Cappa, RM Volkamer, S Madronich, P DeCarlo, RA Zaveri, and JL Jimenez. 2011. "Modeling the Multiday Evolution and Aging of Secondary Organic Aerosol During MILAGRO 2006." Environmental Science & Technology 45(8):3496-3503.  doi:10.1021/es103186f
  • Fast JD, WI Gustafson, Jr, EG Chapman, RC Easter, Jr, JP Rishel, RA Zaveri, G Grell, and M Barth. 2011. "The Aerosol Modeling Testbed: A community tool to objectively evaluate aerosol process modules." Bulletin of the American Meteorological Society 92(3):343-360.  doi:10.1175/2010BAMS2868.1
  • Lee-Taylor J, S Madronich, B Aumont, A Baker, M Camredon, A Hodzic, GS Tyndall, E Apel, and RA Zaveri. 2011. "Explicit modeling of organic chemistry and secondary organic aerosol partitioning for Mexico City and its outflow plume." Atmospheric Chemistry and Physics 11(24):13219-13241.  doi:10.5194/acp-11-13219-2011
  • Matsui H, M Koike, Y Kondo, N Takegawa, A Wiedensohler, JD Fast, and RA Zaveri. 2011. "Impact of new particle formation on the concentrations of aerosol number and cloud condensation nuclei around Beijing." Journal of Geophysical Research. D. (Atmospheres) 116:Article No. D19208.  doi:10.1029/2011JD016025
  • Meskhidze N, J Xu, B Gantt, Y Zhang, A Nenes, SJ Ghan, X Liu, RC Easter, Jr, and RA Zaveri. 2011. "Global distribution and climate forcing of marine organic aerosol: 1. Model improvements and evaluation." Atmospheric Chemistry and Physics 11(22):11689-11705.  doi:10.5194/acp-11-11689-2011
  • Shrivastava MKB, JD Fast, RC Easter, Jr, WI Gustafson, Jr, RA Zaveri, JL Jimenez, P Saide, and A Hodzic. 2011. "Modeling Organic Aerosols in a Megacity: Comparison of Simple and Complex Representations of the Volatility Basis Set Approach." Atmospheric Chemistry and Physics 11(13):6639-6662.  doi:10.5194/acp-11-6639-2011
  • Song C, RA Zaveri, JE Shilling, ML Alexander, and MK Newburn. 2011. "Effect of Hydrophilic Organic Seed Aerosols on Secondary Organic Aerosol Formation from Ozonolysis of a-Pinene ." Environmental Science & Technology 45(17):7323-7329.  doi:10.1021/es201225c


  • Zaveri RA, PB Voss, CM Berkowitz, E Fortner, J Zheng, R Zhang, RJ Valente, R Tanner, D Holcomb, T Hartley, and LA Baran. 2010. "Overnight atmospheric transport and chemical processing of photochemically aged Houston urban and petrochemical industrial plume." Journal of Geophysical Research. D. (Atmospheres) 115:Article No. D23303.  doi:10.1029/2009JD013495
  • Apel E, L Emmons, TG Karl, FM Flocke, AJ Hills, S Madronich, J Lee-Taylor, A Fried, P Weibring, J Walega, D Richter, X Tie, L Mauldin, T Campos, AJ Weinheimer, D Knapp, B Sive, LI Kleinman, S Springston, RA Zaveri, JV Ortega, PB Voss, DR Blake, AK Baker, C Warneke, D Welsh-Bon, JA de Gouw, J Zheng, R Zhang, J Rudolph, W Junkermann, and D Riemer. 2010. "Chemical evolution of volatile organic compounds in the outflow of the Mexico City Metropolitan area ." Atmospheric Chemistry and Physics 10(5):2353-2375 .  doi:10.5194/acp-10-2353-2010
  • Riemer N, M West, RA Zaveri, and RC Easter, Jr. 2010. "Estimating Black Carbon Aging Time-Scales with a Particle-Resolved Aerosol Model." Journal of Aerosol Science (41):143-158. 
  • Subramanian R, GL Kok, D Baumgardner, AD Clarke, Y Shinozuka, T Campos, CG Heizer, B Stephens, B de Foy, PB Voss, and RA Zaveri. 2010. "Black carbon over Mexico: The effect of atmospheric transport on mixing state, mass absorption cross-section, and BC/CO ratios." Atmospheric Chemistry and Physics 10(1):219-237. 
  • Vaden TD, C Song, RA Zaveri, D Imre, and A Zelenyuk. 2010. "Morphology of Mixed Primary and Secondary Organic Particles and the Adsorption of Spectator Organic Gases during Aerosol Formation." Proceedings of the National Academy of Sciences of the United States of America 107(15):6658-6663.  doi:10.1073/pnas.0911206107
  • Voss PB, RA Zaveri, FM Flocke, H Mao, T Hartley, P DeAmicis, I Deonandan, G Contrerars-Jimenez, O Martinez-Antonio, M Figueroa Estrada, D Greenberg, T Campos, AJ Weinheimer, D Knapp, DD Montzka, JD Crounse, PO Wennberg, E Apel, S Madronich, and B de Foy. 2010. "Long-range pollution transport during the MILAGRO-2006 campaign: a case study of a major Mexico City outflow event using free-floating altitude-controlled balloons." Atmospheric Chemistry and Physics 10(15):7137-7159.  doi:10.5194/acp-10-7137-2010
  • Zaveri RA, JC Barnard, RC Easter, Jr, N Riemer, and M West. 2010. "Particle-resolved simulation of aerosol size, composition, mixing state, and the associated optical and cloud condensation nuclei activation properties in an evolving urban plume." Journal of Geophysical Research. D. (Atmospheres) 115:Article No. D17210.  doi:10.1029/2009JD013616
  • Zaveri RA, CM Berkowitz, FJ Brechtel, MK Gilles, JM Hubbe, JT Jayne, LI Kleinman, A Laskin, S Madronich, TB Onasch, MS Pekour, SR Springston, JA Thornton, AV Tivanski, and DR Worsnop. 2010. "Nighttime chemical evolution of aerosol and trace gases in a power plant plume: Implications for secondary organic nitrate and organosulfate aerosol formation, NO3 radical chemistry, and N2O5 heterogeneous hydrolysis." Journal of Geophysical Research. D. (Atmospheres) 115:Art. No. D12304.  doi:10.1029/2009JD013250


  • de Gouw JA, D Welsh-Bon, C Warneke, WC Kuster, ML Alexander, AK Baker, AJ Beyersdorf, DR Blake, MR Canagaratna, AT Celada, LG Huey, W Junkermann, TB Onasch, A Salcido, SJ Sjostedt, A Sullivan, DJ Tanner, L Vargas-Ortiz, RJ Weber, DR Worsnop, XY Yu, and RA Zaveri. 2009. "Emission and Chemistry of Organic Carbon in the Gas and Aerosol Phase at a Sub-Urban Site Near Mexico City in March 2006 During the MILAGRO Study." Atmospheric Chemistry and Physics 9(10):3425-3442. 
  • Fast JD, A Aiken, JD Allan, ML Alexander, T Campos, MR Canagaratna, EG Chapman, P DeCarlo, B de Foy, J Gaffney, JA de Gouw, JC Doran, L Emmons, A Hodzic, SC Herndon, LG Huey, JT Jayne, JL Jimenez, LI Kleinman, WC Kuster, NA Marley, LM Russell, C Ochoa, TB Onasch, MS Pekour, C Song, IM Ulbrich, C Warneke, D Welsh-Bon, C Wiedinmyer, DR Worsnop, XY Yu, and RA Zaveri. 2009. "Evaluating Simulated Primary Anthropogenic and Biomass Burning Organic Aerosols during MILAGRO: Implications for Assessing Treatments of Secondary Organic Aerosols." Atmospheric Chemistry and Physics 9(16):6191-6215. 
  • Kleinman LI, SR Springston, JX Wang, PH Daum, YN Lee, LJ Nunnermacker, G Senum, J Weinstein-Lloyd, ML Alexander, JM Hubbe, JV Ortega, RA Zaveri, MR Canagaratna, and JT Jayne. 2009. "The Time Evolution of Aerosol Size Distribution Over the Mexico City Plateau." Atmospheric Chemistry and Physics 9(13):4261-4278. 
  • Matsui H, M Koike, Y Kondo, N Takegawa, K Kita, Y Miyazaki, M Hu, SY Chang, DR Blake, JD Fast, RA Zaveri, DG Streets, Q Zhang, and T Zhou. 2009. "Spatial and Temporal Variations of Aerosols Around Beijing in the Summer 2006: Model Evaluation and Source Apportionment." Journal of Geophysical Research. D. (Atmospheres) 114:Article number: D00G13.  doi:10.1029/2008JD010906
  • Riemer N, M West, RA Zaveri, and RC Easter, Jr. 2009. "Simulating the Evolution of Soot Mixing State with a Particle-Resolved Aerosol Model." Journal of Geophysical Research. D. (Atmospheres) 114:D09202.  doi:10.1029/2008JD011073


  • Zelenyuk A, J Yang, C Song, RA Zaveri, and DG Imre. 2008. ""Depth-Profiling" and Quantitative Characterization of the Size, Composition, Shape, Density, and Morphology of Fine Particles with SPLAT, a Single-Particle Mass Spectrometer." Journal of Physical Chemistry A 112(4):669-677.  doi:10.1021/jp077308y
  • Zelenyuk A, J Yang, C Song, RA Zaveri, and DG Imre. 2008. "A New Real-Time Method for Determining Particles Sphericity and Density: Application to Secondary Organic Aerosol Formed by Ozonolysis of alpha-Pinene." Environmental Science & Technology 42(21):8033-8038.  doi:10.1021/es8013562
  • Hopkins RJ, Y Desyaterik, AV Tivanski, RA Zaveri, CM Berkowitz, T Tyliszczak, MK Gilles, and A Laskin. 2008. "Chemical Speciation of Sulfur in Marine Cloud Droplets and Particles: Analysis of Individual Particles from the Marine Boundary Layer Over the California Current." Journal of Geophysical Research. D. (Atmospheres) 113(D4):D04209. 
  • Zaveri RA, RC Easter, Jr, JD Fast, and LK Peters. 2008. "Model for Simulating Aerosol Interactions and Chemistry (MOSAIC)." Journal of Geophysical Research. D. (Atmospheres) 113(D13):Art. No. D13204.  doi:10.1029/2007JD008782


  • Ghan SJ, and RA Zaveri. 2007. "Parameterization of Optical Properties for Hydrated Internally Mixed Aerosol." Journal of Geophysical Research. D. (Atmospheres) 112(D10):D10201.  doi:10.1029/2006JD007927
  • Kleinman LI, PH Daum, YN Lee, G Senum, SR Springston, J Wang, CM Berkowitz, JM Hubbe, RA Zaveri, FJ Brechtel, JT Jayne, TB Onasch, and DR Worsnop. 2007. "Aircraft Observations of Aerosol Composition and Ageing in New England and Mid-Atlantic States during the Summer 2002 New England Air Quality Study Field Campaign." Journal of Geophysical Research. D. (Atmospheres) 112(D9):D09310.  doi:10.1029/2006JD007786
  • Song C, RA Zaveri, ML Alexander, JA Thornton, S Madronich, JV Ortega, A Zelenyuk, XY Yu, A Laskin, and AD Maughan. 2007. "Effect of Hydrophobic Primary Organic Aerosols on Secondary Organic Aerosol Formation from Ozonolysis of a-Pinene." Geophysical Research Letters 34(20):Paper # L20803.  doi:10.1029/2007GL030720


  • Fast JD, WI Gustafson, Jr, RC Easter, Jr, RA Zaveri, JC Barnard, EG Chapman, G Grell, and SE Peckham. 2006. "Evolution of Ozone, Particulates, and Aerosol Direct Radiative Forcing in the Vicinity of Houston Using a Fully Coupled Meteorology-Chemistry-Aerosol Model." Journal of Geophysical Research. D. (Atmospheres) 111(D21):D21305.  doi:10.1029/2005JD006721


  • Zaveri RA, RC Easter, Jr, and AS Wexler. 2005. "A New Method for Multicomponent Activity Coefficients of Electrolytes in Aqueous Atmospheric Aerosols." Journal of Geophysical Research. D. (Atmospheres) 110(D2):D02201.  doi:10.1029/2004JD004681
  • Zaveri RA, RC Easter, Jr, and LK Peters. 2005. "A Computationally Efficient Multicomponent Equilibrium Solver for Aerosols (MESA)." Journal of Geophysical Research. D. (Atmospheres) 110(D24):D24203.  doi:10.1029/2004JD005618
  • Voss PB, D Holcomb, CM Berkowitz, and RA Zaveri. 2005. "Integrated System Optimization of Controlled Meteorological (CMET) Balloons." In Proceedings of AIAA's 5th Annual Aviation Technology, Integration, and Operations (ATIO) Conference, AIAA 16th Ligher-than-air Systems Technology Conference, and Balloons Systems Conference, September 26-28, 2005, Arlington, Virginia, pp. 780-783.  American Institute of Aeronautics and Astronautics, Reston, VA. 
  • Zhang Y, XM Hu, G Howell, ED Sills, JD Fast, WI Gustafson, Jr, RA Zaveri, GA Grell, SE Peckham, and SA McKeen. 2005. "Modeling Atmospheric Aerosols in WRF/Chem." In 2005 Joint WRF/MM5 User's Workshop, June 27-30, 2005, Boulder, Colorado.  National Center for Atmospheric Research, Boulder, CO. 


  • Zaveri RA, CM Berkowitz, JM Hubbe, SR Springston, FJ Brechtel, TB Onasch, and JT Jayne. 2004. "Nighttime Lagrangian Measurements of Aerosols and Oxidants in the Boston Urban Plume: Possible Evidence of Heterogeneous Loss of Ozone." In American Association for Aerosol Research 23rd Annual Conference, October 4-8, 2004, Atlanta, Georgia.  American Association for Aerosol Research, Mt. Laurel, NJ. 
  • Zaveri RA, RC Easter, Jr, and AS Wexler. 2004. "A Computationally Efficient Model for Multicomponent Activity Coefficients in Aqueous Solutions." In American Association for Aerosol Research 23rd Annual Conference, October 4-8, 2004, Atlanta, Georgia.  American Association for Aerosol Research, Mt. Laurel, NJ. 
  • Zaveri RA, RC Easter, Jr, LK Peters, and AS Wexler. 2004. "A Computationally Efficient Algorithm for Aerosol Phase Equilibrium." In American Association for Aerosol Research 23rd Annual Conference, October 4-8, 2004, Atlanta, Georgia.  American Association for Aerosol Research, Mt. Laurel, NJ. 
  • Easter RC, Jr, SJ Ghan, Y Zhang, RD Saylor, EG Chapman, NS Laulainen, H Abdul-Razzak, LR Leung, X Bian, and RA Zaveri. 2004. "MIRAGE: Model Description and Evaluation of Aerosols and Trace Gases." Journal of Geophysical Research. D. (Atmospheres) 109(D20):D20210.  doi:10.1029/2004JD004571
  • Ghan SJ, X Bian, EG Chapman, RC Easter, Jr, GI Fann, SC Kothari, RA Zaveri, and Y Zhang. 2004. Simulation of Climate Forcing by AerosolsPNNL-14634, Pacific Northwest National Laboratory, Richland, WA. 


  • Zaveri RA, CM Berkowitz, LI Kleinman, SR Springston, PV Doskey, WA Lonneman, and CW Spicer, Jr. 2003. "Ozone Production Efficiency and NOx Depletion in an Urban Plume: Interpretation of Field Observations and Implications for Evaluating O3-NOx-VOC Sensitivity." Journal of Geophysical Research. D. (Atmospheres) 108(D14):4436.  doi:10.1029/2002JD003144
  • Berkowitz CM, RA Zaveri, JM Hubbe, SR Springston, and RL Coulter. 2003. "An Overview of the Nighttime Aerosol/Oxidant Plume Experiment (NAOPEX)." In Proceedings of the 2003 Fall AGU Meeting., pp. Abstract No. A51E-0724  American Geophysical Union, Washington, DC. 


  • Cho HM, PB Shepson, LA Barrie, JP Cowin, and RA Zaveri. 2002. "NMR Investigation of the Quasi-Brine Layer in Ice/Brine Mixtures." Journal of Physical Chemistry B 106(43):11226-11232. 
  • Fast JD, RA Zaveri, RX Bian, EG Chapman, and RC Easter, Jr. 2002. "Effect of Regional-Scale Transport on Oxidants in the Vicinity of Philadelphia During the 1999 NE-OPS Field Campaign." Journal of Geophysical Research. D. (Atmospheres) 107(D16):, doi:10.1029/2001JD000980
  • Berkowitz CM, RA Zaveri, CW Spicer, P Doskey, and J Weinstein-Lloyd. 2002. "Ozone Production Efficiency at the Williams Tower." In Fourth Conference on Atmospheric Chemistry: Urban, Regional, and Global Scale Impacts of Air Pollutants, pp. 171-174.  American Meteorological Society, Boston, MA. 


  • Berkowitz CM, RA Zaveri, X Bian, S Zhong, RS Disselkamp, NS Laulainen, and EG Chapman. 2001. "Aircraft Observations of Aerosols, O3 and NOy in a Nighttime Urban Plume." Atmospheric Environment 35(13):2395-2404. 
  • Ghan SJ, RC Easter, Jr, EG Chapman, H Abdul-Razzak, Y Zhang, LR Leung, NS Laulainen, RD Saylor, and RA Zaveri. 2001. "A Physically-Based Estimate of Radiative Forcing by Anthropogenic Sulfate Aerosol." Journal of Geophysical Research. D. (Atmospheres) 106(D6):5279-5293. 


  • Disselkamp RS, MA Carpenter, JP Cowin, CM Berkowitz, EG Chapman, RA Zaveri, and NS Laulainen. 2000. "Ozone Loss on Atmospheric Soot Aerosols." Journal of Geophysical Research. D. (Atmospheres) 105(D8):9767-9771. 


  • Zaveri RA, and LK Peters. 1999. "A New Lumped Structure Photochemical Mechanism for Large-Scale Applications." Journal of Geophysical Research. D. (Atmospheres) 104(D23):30387-30415. 
  • Lee PS, RA Zaveri, RC Easter, Jr, and LK Peters. 1999. "Technical Note: On the Parallelization of a Global Climate-Chemistry Modeling System." Atmospheric Environment 33(4):675-681. 

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