GFDL - Geophysical Fluid Dynamics Laboratory

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You-Soon Chang

 You-Soon Chang

  Ph.D / UCAR Project Scientist II
  Climate Change, Variability and Prediction group, GFDL/NOAA
  Princeton University Forrestal Campus, Princeton, NJ 08540
  Phone: 609-452-5318, Fax: 609-987-5063
  Email: You-Soon (dot) Chang (at) noaa (dot) gov
 

Education

  • D.Sc: Seoul National University, Mar. 2000 ~ Aug. 2004
  • M.Ed: Seoul National University, Mar. 1998 ~ Feb. 2000
  • B.Sc: Seoul National University, Mar. 1994 ~ Feb. 1998

Professional Experiences

  • UCAR Project Scientist II: GFDL/NOAA, Princeton, USA, Jun. 2010 ~
  • UCAR Visiting Scientist: GFDL/NOAA, Princeton, USA, Jun. 2007 ~ May. 2010
  • Research Scientist: NIMR/KMA, Seoul, Korea, Sep. 2002 ~ May. 2007
  • Visiting Scientist: GFDL/NOAA, Princeton, USA, Nov. 2006 ~ Apr. 2007 (Korean Government Fellowship)
  • Assistant Researcher: NIMR/KMA, Seoul, Korea, Sep. 2000 ~ Aug. 2002
  • Lecturer: Myeongsung High School, Seoul, Korea, Mar. 1999 ~ Feb. 2000
  • Assistant Researcher: KORDI, Ansan, Korea, Jan. 1998 ~ Feb. 1999

Research Interests

  • Coupled data assimilation system
  • Reanalysis of the global ocean
  • Application of Argo data (QC and analysis with altimetry)
  • Numerical Modeling and statistical approach for the interannual (decadal) variability of the Pacific (Global) Ocean

Scientific publications

  • Chang, Y. -S., S. Zhang, A. Rosati, T. L. Delworth, and W. F. Stern (2012), An assessment of oceanic variability for 1960-2010 from the GFDL ensemble coupled data assimilation, Clim. Dyn., doi:10.1007/s00382-012-1412-2. in press.
  • Chang, Y. -S, and H. -R. Shin (2012), Objective analysis of monthly temperature and salinity around the southwestern East Sea (Japan Sea) on a 0.1° grid, Cont. Shelf. Res., doi:10.1016/j.csr.2012.06.001. in press.
  • Yang X., A. Rosati, S. Zhang, T. L. Delworth, R. Gudgel, R. Zhang, G. Vecchi, W. Anderson, Y. -S. Chang, T. DelSole, K. Dixon, R. Msadek, W. F. Stern, A. Wittenberg, F. Zheng (2012), A predictable AMO-like pattern in GFDL's fully coupled ensemble initialization and decadal forecasting system, J. Clim., accepted. 
  • Vecchi G., R. Msadek, W. Anderson, Y. -S. Chang, T. Delworth, K. Dixon, R. Gudgel, A. Rosati, W. F. Stern, G. Villarini, A. Wittenberg, X. Yang, F. Zeng, R. Zhang, S. Zhang (2012), Multi-year predictions of North Atlantic hurricane frequency: promise and limitations, J. Clim., submitted.  
  • Rosati, A., T. L. Delworth, S. Zhang, R. Gudgel, Y. -S. Chang, W. Anderson, K. Dixon, R. Msadek, W. F. Stern, G. Vecchi, A. Wittenberg, X. Yang, F. Zeng, R. Zhang (2012), Decadal climate predicton experiments at GFDL, J. Clim., submitted.
  • Chang, Y. -S., S. Zhang, and A. Rosati (2011), Improvement of salinity representation in an ensemble coupled data assimilation system using pseudo salinity profiles. Geophys. Res. Lett., 38, L13609, doi:10.1029/2011GL048064.
  • Mahajan S., R. Zhang, T. L. Delworth, S. Zhang, A. Rosati, and Y. -S. Chang (2011), Predicting the Atlantic Meridional Overturning Circulation (AMOC) variability using subsurface fingerprints. Deep-Sea Res., v58(17-18), 1895-1903, doi:10.1016/j.dsr2.2011.10.067.
  • Chang, Y. -S., A. Rosati, and S. Zhang (2011), A construction of pseudo salinity profiles for the global ocean: Method and evaluation, J. Geophys. Res., 116, C02002, doi:10.1029/2010JC006386.  
  • Chang, Y. -S., A. Rosati, and G. A. Vecchi (2010), Basin patterns of global sea level changes for 2004-2007, J. Mar. Systems, v80(1-2), 115-124, doi:10.1016/j.jmarsys.2009.11.003.
  • Chang, Y. -S., A. Rosati, S. Zhang, and M. J. Harrison (2009), Objective analysis of monthly temperature and salinity for the world ocean in the 21st century: Comparison with World Ocean Atlas and application to assimilation validation, J. Geophys. Res., 114, C02014, doi:10.1029/2008JC004970.
  • Chang, Y. -S., C. -W. Cho, Y. -H. Youn, and J. -W. Seo (2007), Validation of ocean general circulation model (FMS-MOM4) in relation with climatological and Argo data. J. Korean Earth Science Society, v28(5), 545-555.  
  • Youn, Y. -H., Y. -S., Chang, Y. -K. Hyun, C. -W. Cho, J. -O. Ku, M. -K. Cho, Y. -S. Ban, S. -J. Park, and S. -J. Kim (2006), Variability of ocean status around Ulleung Basin and Dok-do by using ARGO data, Atmosphere, J. Korean Meteorological Society, v16(4), 379-385. (Korean with English Abstract)
  • You, S. H., J. -W. Seo, Y. -S. Chang, S. Park, and Y. -H. Youn (2006), Comparison of wave model with KMA buoy observation results in the 2002 – 2005 year, J. Korean Meteorological Society, v16(4), 279-301. (Korean with English Abstract)
  • Youn, Y. -H., H. Lee, Y. -S. Chang, and P. Thadathil (2005) Validation of salinity data from ARGO floats: Comparison between the older ARGO floats and that of later deployments. J. Korean Earth Science Society, v26(2). 129-136.
  • Chang, Y. -S., C. -W. Cho, and Y. -H. Youn (2005), Redistribution of subsurface water mass in the Pacific Ocean simulated by an ocean general circulation model. J. Korean Meteorological Society, v41(6), 1089-1100. (Korean with English Abstract)
  • Chang, Y. -S., D. -U. Lee, Y. -H. Youn, and J. -W. Seo (2005), Time series analysis of the subsurface oceanic data and prediction of the sea surface temperature in the tropical Pacific. J. Korean Earth Science Society, v26(7), 706-713 (Korean with English Abstract)
  • Kim, T. -H., Y. -S. Chang, and I. -C. Pang (2005), Distribution of wind waves in the Gyeonggi Bay derived from numerical wave model. J. Korean Meteorological Society, v41(5), 697-706. (Korean with English Abstract)
  • Chang, Y. -S., D. -U. Lee, J. -W. Seo, and Y. -H. Youn (2005), Forecasting the sea surface temperature in the tropical Pacific by neural network model. J. Korean Earth Science Society, v26(3). 268-275. (Korean with English Abstract)
  • Chang, Y. -S, D. Jeon, H. Lee, H. S. An, J. -W. Seo, and Y. -H. Youn (2004), Interannual variabiltiy and lagged correlation during strong El Nino events in the Pacific Ocean. Climate Research. v27(1), 51-58.
  • Lee H., Y. -S. Chang, T. -H. Kim, J. -H. Kim, Y. -H. Youn, J. -W. Seo, and T. -G. Seo (2004), Global ocean observation with ARGO floats: Introduction to ARGO program, Atmosphere, J. Korean Meteorological Society, v14(1), 4-23. (Korean with English Abstract)
  • Seo. J. -W., and Y. -S. Chang (2003), Characteristics of the monthly mean sea surface winds and wind waves near the Korean marginal seas in the 2002 year computed using MM5/KMA and WAVEWATCH-III model. The Sea, J. the Korean Society of Oceanography, v8(3), 262-273. (Korean with English Abstract)
  • Chang, Y. -S., J. -W. Seo, T. -H. Kim, and Y. -H. Youn (2003), Analysis of wave parametric characteristics using WAVEWATCH-III model and observed buoy data. The Sea, J. the Korean Society of Oceanography, v8(3), 274-284. (Korean with English Abstract)
  • Chang, Y. -S., H. S. An, D. Jeon, J. -C. Nam, and J. -W. Seo (2002), El Nino signals contained in precipitation at the East china Sea. Climate Research, v23(1), 31-38.