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Staff information

Jiwen Fan

Earth Systems Analysis & Modeling
Pacific Northwest National Laboratory
PO Box 999
MSIN: K9-30
Richland, WA 99352


Dr. Jiwen Fan has a wide range of research experience and interests, varying from atmospheric chemistry and aerosols, to cloud physics and climate studies. Jiwen is a well-recognized expert in the field of aerosol-cloud interaction who has made significant contribution to provide better understanding of the complex processes associated with aerosol interactions with convection and cloud microphysics. Her current work contains (1) impacts of anthropogenic aerosols on convective clouds and severe weather events, particularly under the context of urban pollution, biomass burning aerosols, and biogenic emissions, (2) improving parameterizations of aerosol-cloud interactions with special emphases on cumulus convective clouds and ice nucleation in regional and global models, (3) developing scale-aware and aerosol-aware cumulus parameterizations for climate models, and (4) Impacts of dust and biological particles on clouds and snowpack in Western U.S. by acting as ice nuclei.

Research Interests

  • Aerosol-cloud-precipitation interactions
  • Aerosol impact on severe weather events and regional climate
  • Parameterizations of cumulus clouds and aerosol-cloud interactions in regional/global climate models

Education and Credentials

  • Ph.D., Atmospheric Sciences, Texas A&M University, College Station, Texas
  • M.S., Environmental Engineering, University of Central Florida, Orlando, Florida
  • M.S., Environmental Science, China University of Mining & Technology (Beijing Campus), 1999
  • B.S., Chemistry, Hunan University of Science & Technology, Hunan, China

Affiliations and Professional Service

  • American Geophysical Union
  • American Meteorological Society

Awards and Recognitions

  • 2015 American Geophysical Union (AGU) ASCENT award for mid-career scientists.
  • 2014 Ronald L. Brodzinski Award for Early Career Exceptional Achievement.
  • DOE Travel Grant for the 2011 IYC Symposium on Stratospheric Ozone and Climate Change, 2011
  • NSF ASCENT Travel Scholarship, 2010
  • NASA Earth System Science (ESS) Fellowship, 2004-2007
  • Chinese Government Award for Outstanding Self-Financed Students Abroad, 2006
  • Ethel Ashworth-Tsutsui Memorial Award for Research, Texas A&M University, 2006
  • Excellent Graduate Student Award, College of Geosciences, Texas A&M University, 2005
  • Robert D. Kersten Fellowship, University of Central Florida, 2000-2002
  • IET Graduate Student Scholarship, International Engineering & Technology Educational Fund Council, 1997-1998.

PNNL Publications


  • Fan J, LY Leung, D Rosenfeld, and PJ DeMott. 2017. "Effects of Cloud Condensation Nuclei and Ice Nucleating Particles on Precipitation Processes and Supercooled Liquid in Mixed-Phase Orographic Clouds." Atmospheric Chemistry and Physics 17(2):1017-1035.  doi:10.5194/acp-17-1017-2017


  • Fan J, Y Wang, D Rosenfeld, and X Liu. 2016. "Review of Aerosol-Cloud Interactions: Mechanisms, Significance and Challenges." Journal of the Atmospheric Sciences 73(11):4221-4252.  doi:10.1175/JAS-D-16-0037.1
  • Cecchini MA, LAT Machado, JM Comstock, F Mei, J Wang, J Fan, JM Tomlinson, B Schmid, R Albrecht, ST Martin, and P Artaxo. 2016. "Impacts of the Manaus pollution plume on the microphysical properties of Amazonian warm-phase clouds in the wet season." Atmospheric Chemistry and Physics 16(11):7029-7041.  doi:10.5194/acp-16-7029-2016
  • Gao W, CH Sui, J Fan, Z Hu, and L Zhong. 2016. "A study of cloud microphysics and precipitation over the Tibetan Plateau by radar observations and cloud-resolving model simulations." Journal of Geophysical Research. D. (Atmospheres) 121(22):13,735-13,752.  doi:10.1002/2015JD024196
  • Gao W, J Fan, RC Easter, Jr, Q Yang, C Zhao, and SJ Ghan. 2016. "Coupling Spectral-bin Cloud Microphysics with the MOSAIC Aerosol Model in WRF-Chem: Methodology and Results for Marine Stratocumulus Clouds." Journal of Advances in Modeling Earth Systems 8(3):1289-1309.  doi:10.1002/2016MS000676
  • Li Z, W Lau, V Ramanathan, GX Wu, Y Ding, M Manoj, J Liu, Y Qian, J Li, T Zhou, J Fan, D Rosenfeld, Y Ming, Y Wang, J Huang, B Wang, X Xu, SS Lee, M Cribb, F Zhang, X Yang, C Zhao, T Takemura, K Wang, X Xia, Y Yin, H Zhang, J Guo, P Zhai, N Sugimoto, S Babu, and G Brasseur. 2016. "Aerosol and Monsoon Climate Interactions over Asia." Reviews of Geophysics 54(4):866-929.  doi:10.1002/2015RG000500
  • Martin ST, P Artaxo, LAT Machado, A Manzi, RA Souza, C Schumacher, J Wang, MO Andreae, H Barbosa, J Fan, G Fisch , AH Goldstein, A Guenther , JL Jimenez, U Poschl, MAF Silva Dias, JN Smith, and M Wendisch. 2016. "Introduction: Observations and Modeling of the Green Ocean Amazon (GoAmazon2014/5)." Atmospheric Chemistry and Physics 16(8):4785-4797.  doi:10.5194/acp-16-4785-2016
  • Tian J, X Dong, B Xi, J Wang, CR Homeyer, G McFarquhar, and J Fan. 2016. "Retrievals of Ice Cloud Microphysical Properties of Deep Convective Systems using Radar Measurements." Journal of Geophysical Research. D. (Atmospheres) 121(18):10,820-10,839.  doi:10.1002/2015JD024686
  • Yang Y, J Fan, LYR Leung, C Zhao, Z Li, and D Rosenfeld. 2016. "Mechanisms Contributing to Suppressed Precipitation in Mt. Hua of Central China, Part I: Mountain Valley Circulation." Journal of the Atmospheric Sciences 73(3):1351-1366.  doi:10.1175/JAS-D-15-0233.1


  • Liu YC, J Fan, GJ Zhang, KM Xu, and SJ Ghan. 2015. "Improving Representation of Convective Transport for Scale-Aware Parameterization, Part II: Analysis of Cloud-Resolving Model Simulations." Journal of Geophysical Research. D. (Atmospheres) 120:3510-3532.  doi:10.1002/2014JD022145
  • Chen Q, J Fan, SM Hagos, WI Gustafson, Jr, and LK Berg. 2015. "Roles of Wind Shear at Different Vertical Levels: Cloud System Organization and Properties." Journal of Geophysical Research. D. (Atmospheres) 120(13):6551-6574.  doi:10.1002/2015JD023253
  • Chen Y, Y Zhang, J Fan, LYR Leung, Q Zhang, and K He. 2015. "Application of an Online-Coupled Regional Climate Model, WRF-CAM5, over East Asia for Examination of Ice Nucleation Schemes: Part I. Comprehensive Model Evaluation and Trend Analysis for 2006 and 2011." Climate 3(3):627-667.  doi:10.3390/cli3030627
  • Fan J, YC Liu, KM Xu, K North, SM Collis, X Dong, GJ Zhang, Q Chen, and SJ Ghan. 2015. "Improving Representation of Convective Transport for Scale-Aware Parameterization - Part I: Convection and Cloud Properties Simulated with Spectral Bin and Bulk Microphysics." Journal of Geophysical Research. D. (Atmospheres) 120:3485-3509.  doi:10.1002/2014JD022142
  • Fan J, D Rosenfeld, Y Yang, C Zhao, LYR Leung, and Z Li. 2015. "Substantial Contribution of Anthropogenic Air Pollution to Catastrophic Floods in Southwest China." Geophysical Research Letters 42(14):6066-6075.  doi:10.1002/2015GL064479
  • Yang Q, RC Easter, Jr, P Campuzano-Jost, JL Jimenez, JD Fast, SJ Ghan, H Wang, LK Berg, M Barth, Y Liu, MKB Shrivastava, B Singh, H Morrison, J Fan, CL Ziegler, M Bela, E Apel, GS Diskin, T Mikoviny, and A Wisthaler. 2015. "Aerosol transport and wet scavenging in deep convective clouds: a case study and model evaluation using a multiple passive tracer analysis approach." Journal of Geophysical Research. D. (Atmospheres) 120(16):8448-8468.  doi:10.1002/2015JD023647
  • Zhang G, J Fan, and KM Xu. 2015. "Comments on “A Unified Representation of Deep Moist Convection in Numerical Modeling of the Atmosphere. Part I” ." Journal of the Atmospheric Sciences 72:2562-2565.  doi:10.1175/JAS-D-14-0246.1
  • Zhang Y, X Zhang, K Wang, J He, LYR Leung, J Fan, and A Nenes. 2015. "Incorporating an advanced aerosol activation parameterization into WRF-CAM5: Model evaluation and parameterization intercomparison." Journal of Geophysical Research. D. (Atmospheres) 120(14):6952-6979.  doi:10.1002/2014JD023051
  • Zhang Y, Y Chen, J Fan, and LYR Leung. 2015. "Application of an Online-Coupled Regional Climate Model, WRF-CAM5, over East Asia for Examination of Ice Nucleation Schemes: Part II. Sensitivity to Heterogeneous Ice Nucleation Parameterizations and Dust Emissions." Climate 3(3):753-774.  doi:10.3390/cli3030753


  • Lim KS, J Fan, LYR Leung, PL Ma, B Singh, C Zhao, Y Zhang, G Zhang, and X Song. 2014. "Investigation of Aerosol Indirect Effects using a Cumulus Microphysics Parameterization in a Regional Climate Model." Journal of Geophysical Research. D. (Atmospheres) 119(2):906-926.  doi:10.1002/2013JD020958
  • Ovchinnikov M, A Ackerman, A Avramov, A Cheng, J Fan, A Fridlind, SJ Ghan, JY Harrington, C Hoose, A Korolev, G McFarquhar, H Morrison, M Paukert, J Savre, B Shipway, MD Shupe, A Solomon, and K Sulia. 2014. "Intercomparison of Large-eddy Simulations of Arctic Mixed-phase Clouds: Importance of Ice Size Distribution Assumptions." Journal of Advances in Modeling Earth Systems 6(1):223-248.  doi:10.1002/2013MS000282
  • Fan J, LYR Leung, PJ DeMott, JM Comstock, B Singh, D Rosenfeld, JM Tomlinson, A White, K Prather, P Minnis, JK Ayers, and Q Min. 2014. "Corrigendum to Aerosol impacts on California winter clouds and precipitation during CalWater 2011: local pollution versus long-range transported dust published in Atmos. Chem. Phys., 14, 81-101, 2014." Atmospheric Chemistry and Physics 14:3063-3064.  doi:10.5194/acp-14-3063-2014
  • Fan J, LYR Leung, PJ DeMott, JM Comstock, B Singh, D Rosenfeld, JM Tomlinson, AB White, K Prather, P Minnis, JK Ayers, and Q Min. 2014. "Aerosol Impacts on California Winter Clouds and Precipitation during CalWater 2011: Local Pollution versus Long-Range Transported Dust." Atmospheric Chemistry and Physics 14(1):81-101.  doi:10.5194/acp-14-81-2014
  • Guo J, M Deng, J Fan, Z Li, Q Chen, P Zhai, Z Dai, and X Li. 2014. "Precipitation and Air Pollution at Mountain and Plain Stations in Northern China: Insights Gained from Observations and Modeling." Journal of Geophysical Research. D. (Atmospheres) 119(8):4793-4807.  doi:10.1002/2013JD021161
  • Varble A, EJ Zipser, A Fridlind, P Zhu, A Ackerman, JP Chaboureau, J Fan, A Hill, B Shipway, and CR Williams. 2014. "Evaluation of Cloud-resolving and Limited Area Model Intercomparison Simulations using TWP-ICE Observations. Part 2: Rain Microphysics." Journal of Geophysical Research. D. (Atmospheres) 119(24):13,919-13,945.  doi:10.1002/2013JD021372
  • Varble AC, EJ Zipser, A Fridlind, P Zhu, A Ackerman, JP Chaboureau, SM Collis, J Fan, A Hill, and B Shipway. 2014. "Evaluation of Cloud-resolving and Limited Area Model Intercomparison Simulations using TWP-ICE Observations. Part 1: Deep Convective Updraft Properties." Journal of Geophysical Research. D. (Atmospheres) 119(24):13,891-13,918.  doi:10.1002/2013JD021371
  • Zhang D, Z Wang, AJ Heymsfield, J Fan, and T Luo. 2014. "Ice Concentration Retrieval in Stratiform Mixed-phase Clouds Using Cloud Radar Reflectivity Measurements and 1D Ice Growth Model Simulations." Journal of the Atmospheric Sciences 71(10):3613-3635.  doi:10.1175/JAS-D-13-0354.1


  • Fan J, LYR Leung, D Rosenfeld, Q Chen, Z Li, J Zhang, and H Yan. 2013. "Microphysical Effects Determine Macrophysical Response for Aerosol Impacts on Deep Convective Clouds ." Proceedings of the National Academy of Sciences of the United States of America 110(48):E4581-E4590 .  doi:10.1073/pnas.1316830110
  • Wang Y, J Fan, R Zhang, LYR Leung, and CN Franklin. 2013. "Improving Bulk Microphysics Parameterizations in Simulations of Aerosol Effects." Journal of Geophysical Research. D. (Atmospheres) 118(11):5361-5379.  doi:10.1002/jgrd.50432


  • Fan J, D Rosenfeld, Y Ding, LYR Leung, and Z Li. 2012. "Potential Aerosol Indirect Effects on Atmospheric Circulation and Radiative Forcing through Deep Convection." Geophysical Research Letters 39:Article No. L09806.  doi:10.1029/2012GL051851
  • Fan J, LYR Leung, Z Li, H Morrison, H Chen, Y Zhou, Y Qian, and Y Wang. 2012. "Aerosol Impacts on Clouds and Precipitation in Eastern China: Results from Bin and Bulk Microphysics." Journal of Geophysical Research. D. (Atmospheres) 117:Article No. D00K36.  doi:10.1029/2011JD016537
  • Fridlind AM, A Ackerman, JP Chaboureau, J Fan, WW Grabowski, A Hill, TR Jones, MM Khaiyer, G Liu, P Minnis, H Morrison, L Nguyen, S Park, JC Petch, JP Pinty, C Schumacher, B Shipway, AC Varble, X Wu, S Xie, and M Zhang. 2012. "A Comparison of TWP-ICE Observational Data with Cloud-Resolving Model Results." Journal of Geophysical Research. D. (Atmospheres) 117:Article No. D05204.  doi:10.1029/2011JD016595
  • Kulkarni GR, J Fan, JM Comstock, X Liu, and M Ovchinnikov. 2012. "Laboratory Measurements and Model Sensitivity Studies of Dust Deposition Ice Nucleation." Atmospheric Chemistry and Physics 12(16):7295-7308.  doi:10.5194/acp-12-7295-2012
  • Mrowiec AA, C Rio, A Fridlind, A Ackerman, AD Del Genio, O Pauluis, A Varble, and J Fan. 2012. "Analysis of Cloud-resolving Simulations of a Tropical Mesoscale Convective System Observed during TWP-ICE: Vertical Fluxes and Draft Properties in Convective and Stratiform Regions." Journal of Geophysical Research. D. (Atmospheres) 117:D19201.  doi:10.1029/2012JD017759
  • Zhang D, Z Wang, AJ Heymsfield, J Fan, D Liu, and M Zhao. 2012. "Quantifying the Impact of Dust on Heterogeneous Ice Generation in Midlevel Supercooled Stratiform Clouds." Geophysical Research Letters 39:L18805.  doi:10.1029/2012GL052831


  • Ovchinnikov M, A Korolev, and J Fan. 2011. "Effects of ice number concentration on dynamics of a shallow mixed-phase stratiform cloud." Journal of Geophysical Research. D. (Atmospheres) 116:Article No. D00T06.  doi:10.1029/2011JD015888
  • Bennartz R, J Fan, J Rausch, LYR Leung, and AK Heidinger. 2011. "Pollution from China increases cloud droplet number, suppresses rain over the East China Sea." Geophysical Research Letters 38:Article No. L09704.  doi:10.1029/2011GL047235
  • Fan J, SJ Ghan, M Ovchinnikov, X Liu, PJ Rasch, and A Korolev. 2011. "Representation of Arctic Mixed-Phase clouds and the Wegener-Bergeron-Findeisen Process in Climate Models: Perspectives from a Cloud-Resolving Study." Journal of Geophysical Research. D. (Atmospheres) 116:Article No. D00T07.  doi:10.1029/2010JD015375
  • Larson VE, BJ Nielsen, J Fan, and M Ovchinnikov. 2011. "Parameterizing correlations between hydrometeor species in mixed-phase Arctic clouds." Journal of Geophysical Research. D. (Atmospheres) 116:Art. No. D00T02.  doi:10.1029/2010JD015570
  • Li Z, F Niu, J Fan, Y Liu, D Rosenfeld, and Y Ding. 2011. "Long-term impacts of aerosols on the vertical development of clouds and precipitation." Nature Geoscience 4(12):888-894.  doi:10.1038/NGEO1313
  • McFarquhar G, SJ Ghan, J Verlinde, A Korolev, JW Strapp, B Schmid, JM Tomlinson, M Wolde, SD Brooks, DJ Cziczo, MK Dubey, PhD, J Fan, CJ Flynn, I Gultepe, JM Hubbe, MK Gilles, A Laskin, P Lawson, WR Leaitch, PS Liu, X Liu, D Lubin, C Mazzoleni, AM Macdonald, RC Moffet, H Morrison, M Ovchinnikov, MD Shupe, DD Turner, S Xie, A Zelenyuk, K Bae, M Freer, and A Glen. 2011. "Indirect and Semi-Direct Aerosol Campaign: The Impact of Arctic Aerosols on Clouds ." Bulletin of the American Meteorological Society 92(2):183 - 201.  doi:10.1175/2010BAMS2935.1
  • Morrison H, P Zuidema, A Ackerman, A Avramov, G de Boer, J Fan, A Fridlind, T Hashino, JY Harrington, Y Luo, M Ovchinnikov, and B Shipway. 2011. "Intercomparison of cloud model simulations of Arctic mixed-phase boundary layer clouds observed during SHEBA/FIRE-ACE." Journal of Advances in Modeling Earth Systems 3:Article No. M06003. 
  • Varble A, A Fridlind, EJ Zipser, A Ackerman, JP Chaboureau, J Fan, A Hill, SA McFarlane, JP Pinty, and B Shipway. 2011. "Evaluation of Cloud-Resolving Model Intercomparison Simulations Using TWP-ICE Observations: Precipitation and Cloud Structure." Journal of Geophysical Research. D. (Atmospheres) 116:Article No. D12206.  doi:10.1029/2010JD015180
  • Varble AC, A Fridlind, E Zipser, A Ackerman, JP Chaboureau, J Fan, A Hill, SA McFarlane, JP Pinty, and B Shipway. 2011. "Evaluation of Cloud-Resolving Model Intercomparison Simulations Using TWP-ICE Observations: Precipitation and Cloud Structure ." Journal of Geophysical Research. D. (Atmospheres) 116:Article No. D12206.  doi:10.1029/2010JD015180


  • Fan J, JM Comstock, and M Ovchinnikov. 2010. "The cloud condensation nuclei and ice nuclei effects on tropical anvil characteristics and water vapor of the tropical tropopause layer." Environmental Research Letters 5(4):Article No. 044005.  doi:10.1088/1748-9326/5/4/044005
  • Fan J, JM Comstock, M Ovchinnikov, SA McFarlane, G McFarquhar, and G Allen. 2010. "Tropical anvil characteristics and water vapor of the tropical tropopause layer: Impact of heterogeneous and homogeneous freezing parameterizations ." Journal of Geophysical Research. D. (Atmospheres) 115:D12201.  doi:10.1029/2009JD012696


  • Fan J, M Ovtchinnikov, JM Comstock, SA McFarlane, and A Khain. 2009. "Ice Formation in Arctic Mixed-Phase Clouds: Insights from a 3-D Cloud-Resolving Model with Size-Resolved Aerosol and Cloud Microphysics ." Journal of Geophysical Research. D. (Atmospheres) 114(D04205):, doi:10.1029/2008JD010782
  • Fan J, T Yuan, JM Comstock, SJ Ghan, A Khain, LYR Leung, Z Li, VJ Martins, and M Ovchinnikov. 2009. "Dominant Role by Vertical Wind Shear in Regulating Aerosol Effects on Deep Convective Clouds." Journal of Geophysical Research. D. (Atmospheres) 114(D22206):, doi:10.1029/2009JD012352
  • Qian Y, D Gong, J Fan, LR Leung, R Bennartz, D Chen, and W Wang. 2009. "Heavy pollution suppresses light rain in China: observations and modeling." Journal of Geophysical Research. D. (Atmospheres) 114:article number D00K02.  doi:10.1029/2008JD011575


  • Fan J, and R Zhang. 2008. "Density Functional Theory Study on OH-Initiated Atmospheric Oxidation of m-Xylene ." Journal of Physical Chemistry A 18(112):4314-4323.  doi:10.1021/jp077648j
  • Fan J, R Zhang, WK Tao, and KI Mohr. 2008. "Effects of aerosol optical properties on deep convective clouds and radiative forcing." Journal of Geophysical Research. D. (Atmospheres) 113(D8):Art. No. D08209.  doi:10.1029/2007JD009257
  • Yuan T, Z Li, R Zhang, and J Fan. 2008. "Increase of Cloud Droplet Size with Aerosol Optical Depth: An Observational and Modeling Study." Journal of Geophysical Research. D. (Atmospheres) 113:Artical Number D04201.  doi:10.1029/2007JD008632

Selected Publications


  • Fan J and R Zhang.  2008.  "Density Functional Theory Study on OH-Initiated Atmospheric Oxidation of M-Xylene."  The Journal of Physical Chemistry A 112(18):  4314-4323, DOI:  10.1021/jp077648j.
  • Fan J, R Zhang, W-K Tao, and K Mohr.  2008.  "Effects of Aerosol Optical Properties on Deep Convective Clouds and Radiative Forcing."  Journal of Geophysical Research-Atmospheres 113(D08):  Art. No. D08209, DOI:  10.1029/2007JD009257.
  • Yuan T, Z Li, R Zhang, and J Fan.  (2008).  "Increase of Cloud Droplet Size with Aerosol Optical Depth:  An Observation and Modeling Study."  Journal of Geophysical Research-Atmospheres 113(D04):  Art. No. D04201, DOI:  10.1029/2007JD008632.


  • Fan J, R Zhang, G Li, and W-K Tao. 2007.  "Effects of Aerosols and Relative Humidity on Cumulus Clouds."  Journal of Geophysical Research-Atmospheres 112(D14):  Art. No. D14204, DOI:  10.1029/2006JD008136.
  • Fan J, R Zhang, G Li, W-K Tao, and X Li.  2007.  Simulations of Cumulus Clouds Using a Spectral Microphysics Cloud-Resolving Model."  Journal of Geophysical Research 112(D04):  Art. No. D04201, DOI:  10.1029/2006JD007688.
  • Li G, R Zhang, J Fan, and X Tie.  2007.  "Impacts of Biogenic Emissions on Photochemical Ozone Production in Houston, Texas."  Journal of Geophysical Research-Atmospheres 112(D10):  Art. No. D10309, DOI:  10.1029/2006JD007924. 
  • Zhang R, G Li, J Fan, DL Wu, and MJ Molina.  2007.  "Intensification of Pacific Storm Track Linked to Asian Pollution."  Proceedings of the National Academy of Sciences of the United States of America 104(13):  5295-5299.

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