Staff information

Research Interests

• Climate modeling with global and regional climate models
• Diagnostic analysis of model output and observational data
• Climate variability and change
• Seasonal climate prediction
• Climate change impact on human and hydro-ecosystems
• Climate sensitivity and feedback processes

Education and Credentials

• Ph.D., Meteorology, Iowa State University, Ames, IA
• M.S., Meteorology, Iowa State University, Ames, IA
• B.S., Meteorology, Seoul National University, Seoul, South Korea

Affiliations and Professional Service

• American Geophysical Union
• American Meteorological Society
• American Association for the Advancement of Science

Awards and Recognitions

• NASA Earth System Science (ESS) Fellowship for Ph.D. study
• 2005 Amazon drought paper was selected as "best paper of 2008" by Envionrmental Research Letter

PNNL Publications

2013

• Kravitz BS, K Caldeira, O Boucher, A Robock, PJ Rasch, K Alterskjaer, D Bou Karam, JN Cole, CL Curry, J Haywood, P Irvine, D Ji, A Jones, JE Kristjansson, D Lunt, J Moore, U Niemeier, H Schmidt, M Schulz, B Singh, S Tilmes, S Watanabe, S Yang, and JH Yoon. 2013. "Climate Model Response from the Geoengineering Model Intercomparison Project (GeoMIP)." Journal of Geophysical Research. D. (Atmospheres) 118(15):8320-8332.  doi:10.1002/jgrd.50646
• Lee YH, JF Lamarque, MG Flanner, C Jiao, D Shindell, T Berntsen, M Bisiauxs, J Cao, WJ Collins, M Curran, R Edwards, G Faluvegi, SJ Ghan, L Horowitz, JR McConnell, J Ming, G Myhre, T Nagashima, V Naik, S Rumbold, RB Skeie, K Sudo, T Takemura, F Thevenon, B Xu, and JH Yoon. 2013. "Evaluation of Preindustrial to Present-day Black Carbon and its Albedo Forcing from Atmospheric Chemistry and Climate Model Intercomparison Project (ACCMIP)." Atmospheric Chemistry and Physics 13(5):2607-2634.  doi:10.5194/acp-13-2607-2013
• Ma PL, PJ Rasch, H Wang, K Zhang, RC Easter, Jr, S Tilmes, JD Fast, X Liu, JH Yoon, and JF Lamarque. 2013. "The Role of Circulation Features on Black Carbon Transport into the Arctic in the Community Atmosphere Model Version 5 (CAM5)." Journal of Geophysical Research. D. (Atmospheres) 118(10):4657-4669.  doi:10.1002/jgrd.50411
• Myhre G, BH Samset, M Schulz, Y Balkanski, S Bauer, T Berntsen, H Bian, N Bellouin, M Chin, T Diehl, RC Easter, Jr, J Feichter, SJ Ghan, D Hauglustaine, T Iversen, S Kinne, A Kirkevag, JF Lamarque, G Lin, X Liu, MT Lund, G Luo, X Ma, T van Noije, JE Penner, PJ Rasch, A Ruiz, O Seland, RB Skeie, P Stier, T Takemura, K Tsigaridis, P Wang, Z Wang, L Xu, H Yu, F Yu, JH Yoon, K Zhang, H Zhang, and C Zhou. 2013. "Radiative Forcing of the Direct Aerosol Effect from AeroCom Phase II Simulations." Atmospheric Chemistry and Physics 13(4):1853-1877.  doi:10.5194/acp-13-1853-2013
• Shindell D, JF Lamarque, M Schulz, MG Flanner, C Jiao, M Chin, PJ Young, YH Lee, L Rotstayn, NM Mahowald, G Milly, G Faluvegi, Y Balkanski, WJ Collins, A Conley, S Dalsoren, RC Easter, Jr, SJ Ghan, L Horowitz, X Liu, G Myhre, T Nagashima, V Naik, S Rumbold, RB Skeie, K Sudo, S Szopa, T Takemura, A Voulgarakis, JH Yoon, and F Lo. 2013. "Radiative forcing in the ACCMIP historical and future climate simulations." Atmospheric Chemistry and Physics 13(6):2939-2974.  doi:10.5194/acp-13-2939-2013
• Wang H, RC Easter, Jr, PJ Rasch, M Wang, X Liu, SJ Ghan, Y Qian, JH Yoon, PL Ma, and V Vinoj. 2013. "Sensitivity of Remote Aerosol Distributions to Representation of Cloud-Aerosol Interactions in a Global Climate Model." Geoscientific Model Development 6(3):765-782.  doi:10.5194/gmd-6-765-2013
• Wang SYS, ML Heureux, and JH Yoon. 2013. "Are Greenhouse Gases Changing ENSO Precursors in the Western North Pacific?" Journal of Climate 26(17):6309-6322.  doi:10.1175/JCLI-D-12-00360.1

2012

• Yoon JH, and PL Ma. 2012. "Ocean General Circulation Models." In Encyclopedia of Sustainability Science and Technology, ed. RA Meyers, pp. 7365-7381.  Springer, New York, NY. 
• Yoon JH, and WRJ Huang. 2012. "Indian Monsoon Depression: Climatology and Variability." Chapter 2 in Modern Climatology, ed. SY Wang and RR Gillies , pp. 45-71.  InTech, Rijeka, Croatia (Local Name: Hrvatska). 
• Yoon JH, K Mo, and E Wood. 2012. "Dynamic-Model Based Seasonal Prediction of Meteorological Drought over the Contiguous United States." Journal of Hydrometeorology 13(2):463-482.  doi:10.1175/JHM-D-11-038.1
• Yoon JH, LYR Leung, and J Correia Jr.. 2012. "Comparison of Dynamically and Statistically Downscaled Seasonal Climate Forecasts for the Cold Season over the United States." Journal of Geophysical Research. D. (Atmospheres) 117:D21109.  doi:10.1029/2012JD017650
• Anderson BT, JR Knight, MA Ringer, JH Yoon, and A Cherchi. 2012. "Testing for the Possible Influence of Unknown Climate Forcings upon Global Temperature Increases from 1950-2000." Journal of Climate 25(20):7163-7172.  doi:10.1175/JCLI-D-11-00645.1
• Cook B, N Zeng, and JH Yoon. 2012. "Will Amazonia dry out?: Magnitude and causes of change from IPCC climate model projections." Earth Interactions 16(3):1-27.  doi:10.1175/2011EI398.1
• Ganguly D, PJ Rasch, H Wang, and JH Yoon. 2012. "Climate response of the South Asian monsoon system to anthropogenic aerosols." Journal of Geophysical Research. D. (Atmospheres) 117:Article No. D13209.  doi:10.1029/2012JD017508
• Ganguly D, PJ Rasch, H Wang, and JH Yoon. 2012. "Fast and Slow Responses of the South Asian Monsoon System to Anthropogenic Aerosols." Geophysical Research Letters 39:Article No. L18804.  doi:10.1029/2012GL053043
• 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

Selected Publications

2010

• Yoon J-H and N Zeng. 2010. "An Atlantic Influence on Amazon Rainfall." Climate Dynamics 34(2-3):249-264. doi:10.1007/s00382-009-0551-6.
• Anderson B, JF Knight, MA Ringer, C Desser, A Phillips, J-H Yoon, and A Cherchi. 2010. "Climate Forcings and Climate Sensitivities Diagnosed from Atmospheric Global Circulation Models." Climate Dynamics 35(7-8): 1461-1475. doi:10.1007/s00382-010-0798-y.
• Gilles RR, S-Y Wang, J-H Yoon, and S Weaver. 2010. "CFS Prediction of Winter Persistent Inversions in the Intermountain Region." Weather and Forecasting 25(4):1211-1218. doi:10.1175/2010WAF2222419.1.

2009

• Kucharski A, AA Scaife, J-H Yoon, CK Folland, J Kinter, D Fereday, AM Fischer, EK Jin, J Kroger, NC Lau, T Nakaegawa, P Pegion, E Rozanov, S Schubert, PV Sporyshev, J Syktus, A Voldorie, J-H Yoon, N Zeng, and T Zhou. 2009. "The CLIVAR C20C Project: Skill of Simulating Indian Monsoon Rainfall on Interannual to Decadal Timescales. Does GHG Forcing Play a Role?" Climate Dynamics 33(5):615-627. doi:10.1007/s00382-008-0462-y.
• Scaife AA, F Kucharski, CK Folland, J Kinter, D Fereday, AM Fischer, S Grainger, EK Jin, IS Kang, JR Knight, S Kusonoki, NC Lau, MJ Nath, T Nakaegawa, P Pegion, S Schubert, P Sporyshev, J Syktus, JH Yoon, N Zeng, and T Zhou. 2009. "The CLIVAR C20C Project: Selected 20th Century Climate Events." Climate Dynamics 33(5):603-614. doi:10.1007/s00382-008-0451-1.
• Zeng N and J-H Yoon. 2009. "Expansion of the World's Deserts due to Vegetation-Albedo Feedback under Global Warming." Geophysical Research Letters 36: Art. No. L17401, doi:10.1029/2009GL039699.
• Zhou T, B Wu, AA Scaife, L Li, F Kucharski, CK Folland, J Kinter, D Fereday, AM Fischer, EK Jin, JR Knight, S Kusonoki, NC Lau, T Nakaegawa, P Pegion, J Syktus, JH Yoon, and N Zeng. 2009. "The CLIVAR C20C Project.  Part 3: Which Components of the Asian-Australian Monsoon Variability are Forced and Reproducible?"  Climate Dynamics 33(7-8):1051-1068. doi:10.1007/s00382-008-0501-8.

2008

• Mariotti A, Z Zeng, J-H Yoon, V Artale, A Navarra, P Alpert, and LZX Li. 2008. "Mediterranean Water Cycle Changes: Transition to Drier 21st Century Conditions in Observations and CMIP3 Simulations." Environmental Research Letters 3(4): Art. No. 044001. doi:10.1088/1748-9326/3/4/044001.
• Zeng N, J-H Yoon, A Mariotti, and S Swenson. 2008. "Variability of Basin-Scale Terrestrial Water Storage from a P-E-R Water Budget Method: The Amazon and the Mississippi." Journal of Climate 21(2):248-265. doi: 10.1175/2007JCLI1639.1.
• Zeng N, J-H Yoon, A Vinzileos, GJ Collatz, E Kalnay, A Mariotti, A Kumar, A Busalacchi, and S Lord. 2008. "Dynamical Prediction of Ecosystem and the Global Carbon Cycle: A 25-Year Hindcast Experiment."  Global Biogeochemical Cycles 22: Art. No. GB4015. doi:10.1029/2008GB003183.
• Zeng N, J-H Yoon, J Marengo, A Subramaniam, C Nobre, A Mariotti, and JD Neelin. 2008. "Causes and Impacts of the 2005 Amazon Drought." Environmental Research Letters 3: Art. No. 014002. doi:10.1088/1748-9326/3/1/014002.

2006

• Yoon J-H and T-C Chen. 2006. "Maintenance of the Boreal Forest Rainbelts during Northern Summer." Journal of Climate 19:1437-1449. doi:10.1175/JCLI3692.1.

2005

• Yoon J-H and T-C Chen. 2005. "Water Vapor Budget of the Indian Monsoon Depression." Tellus Series A-Dynamic Meteorology and Oceanography 57(5):770-782. doi:10.1111/j.1600-0870.2005.00145.x.
• Chen TC, J-H Yoon, and SY Wang. 2005. "Westward Propagation of the Indian Monsoon Depression." Tellus Series A-Dynamic Meteorology and Oceanography 57(5):758-769. doi:10.1111/j.1600-0870.2005.00140.x.

2004

• Chen T-C, W-R Huang, and J-H Yoon. 2004. "Interannual Variation of the East-Asian Cold Surge Activity." Journal of Climate 17:401-413.

2002

• Chen T-C and J-H Yoon. 2002. "Interdecadal Variations of the North Pacific Wintertime Blocking."  Monthly Weather Review 130:3136-3143. doi:10.1175/1520-0493(2002)130<3136:IVOTNP>2.0.CO;2

2001

• Chen T-C, J-H Yoon, KJ St. Croix, and ES Takle. 2001. "Suppressing Impacts of the Amazonian Deforestation by the Global Circulaton Change."  Bulletin of the American Meteorological Society 82(10):2209-2216.

2000

• Chen T-C and J-H Yoon. 2000. "Interannual Variation in Indochina Summer Monsoon Rainfall: Possible Mechanism." Journal of Climate 13:1979-1986. doi: 10.1175/1520-0442(2000)013<1979:IVIISM>2.0.CO;2.
• Chen T-C and J-H Yoon. 2000. "Some Remarks on the Westward Propagation of the Monsoon Depression." Tellus Series A-Dynamic Meteorology and Oceanography 52(5):487-499. doi:10.1034/j.1600-0870.2000.01127.x.