Karl Stein

Assistant Research Fellow

Email: steinkarl@pusan.ac.kr

Phone: +82-51-510-7694

Research Interests

  • El Niño – Southern Oscillation dynamics
  • Orbital scale Southern Ocean dynamics
  • Coupled climate processes
  • Modes of climate variability
  • Nonlinear climate dynamics
  • Climate modeling


2013 PhD, Oceanography, University of Hawaii at Manoa, USA
MSc, Oceanography, University of Hawaii at Manoa, USA
B.A., Math and Philosophy, Claremont McKenna College, USA

Work Experience

2017 Present Assistant Researcher, IBS Center for Climate Physics, Pusan National University, Korea
2013 2016 Postdoctoral Research Associate, Hawaii Natural Energy Institute, University of Hawaii at Manoa, USA

Fellowships, Awards, and Honors

National Merit Scholar


  1. Evaluation of a 1 MW, 250 kW-hr Battery Energy Storage System for Grid Services for the Island of Hawaii, K. Stein, M. Tun, K. Musser, R. Rocheleau, Energies, 11(12), doi: 10.3390/en11123367 (2018)
  2. Characterization of a fast battery energy storage system for primary frequency response, K. Stein, M. Tun, M. Matsuura, R. Rocheleau, Energies, 11(12), doi: 10.3390/en11123358 (2018)
  3. El Niño–Southern Oscillation complexityA Timmermann, S-I An, J-S Kug, F-F Jin, W Cai, A Capotondi, K Cobb, M Lengaigne, M J. McPhaden, M F. StueckerK Stein, A T. Wittenberg, K-S Yun, T Bayr, H-C Chen, Y Chikamoto, B Dewitte, D Dommenget, P Grothe, E Guilyardi, Y-G Ham, M Hayashi, S Ineson, D Kang, S Kim, WM Kim, J-Y Lee, T Li, J-J Luo, S McGregor, Y Planton, S Power, H Rashid, H-L Ren, A Santoso, K Takahashi, A Todd, G Wang, G Wang, R Xie, W-H Yang, S-W Yeh, J Yoon, E Zeller, X Zhang, Nature 559, 535-545, doi: 10.1038/s41586-018-0252-6 (2018)
  4. Battery Energy Storage Systems Battery Durability and Reliability under Electric Utility Grid Operations: Analysis of 3 years of real usage, Matthieu Dubarry, Arnauld Devie, Karl Stein, Moe Tun, Marc Matsuura, and Richard Rocheleau, Journal of Power Systems, Volume 338, Pages 65-73, 2017, https://doi.org/10.1016/j.jpowsour.2016.11.034
  5. ENSO Seasonal Synchronization TheoryKarl Stein, Axel Timmermann, Niklas Schneider, Fei-Fei Jin, Malte F. Stuecker, Journal of Climate, Volume 27, Issue 14, 2014, http://dx.doi.org/10.1175/JCLI-D-13-00525.1
  6. Changes in South Pacific rainfall bands in a warming climate, Matthew J. Widlansky, Axel Timmermann, Karl Stein, Shayne McGregor, Niklas Schneider, Matthew H. England, Matthieu Lengaigne and Wenju Cai, Nature Climate Change, Volume 3, Issue 4, 2013, doi:10.1038/nclimate1726
  7. Phase synchronization of the El Niño-Southern Oscillation with the annual cycleKarl Stein, Axel Timmermann, and Niklas Schneider, Physical Review Letters, Volume 107, Issue 12, 2011, https://doi.org/10.1103/PhysRevLett.107.128501
  8. Seasonal synchronization of ENSO events in a linear stochastic modelKarl Stein, Niklas Schneider, Axel Timmermann, and Fei-Fei Jin, Journal of Climate, Volume 23, Issue 21, 2010, http://dx.doi.org/10.1175/2010JCLI3292.1