Stefan Tulich


Research Scientist


Modeling and Data Assimilation




(303) 497-6551


I am a Research Scientist III affiliated with CIRES, Univ. of Colorado working in the Modeling and Data Assimilation Division (MADD) of NOAA's Physical Sciences Laboratory. I use sophisticated numerical models together with observations to improve understanding and prediction of convection and its interactions with dynamics, so that society can better respond to changes in weather and climate.

Research Interests

  • Convectively coupled equatorial waves
  • The Madden-Julian Oscillation
  • Tropical-extratopical interactions
  • Convection parameterization


  • B.Sc., Physics, Univ. of Miami, FL, May 1995
  • M.Sc., Atmospheric Science, Colorado State Univ., Fort Collins, May 1998
  • Ph.D., Atmospheric Science, Colorado State Univ., Fort Collins, Dec 2003

Selected Publications

  • Barpanda, P., S. N. Tulich, J. Dias, and G. N. Kiladis, 2023: The role of subtropical Rossby waves in amplifying the divergent circulation component of the Madden Julian Oscillation. J. Atmos. Sci., in-press.
  • Tulich, S. N., 2023: How important are horizontal eddy moisture transports for the MJO's eastward propagation, Geophysical. Res. Lett., 50, e2023GL103944.
  • Cheng, Y.-M., S. N. Tulich, G. N. Kiladis, and J. Dias, 2022: Two extratropical pathways to forcing tropical convective disturbances, J. Climate, 6587-6609.
  • Tulich, S. N., and G. N. Kiladis, 2021: On the regionality of moist Kelvin waves and the MJO: The critical role of the background zonal flow. J. Adv. Model. Earth Syst., 13, e2021MS002528.
  • Dias, J., S. N. Tulich, M. Gehne, and G. N. Kiladis, 2021: Tropical origins of Weeks 2–4 forecast errors during the Northern Hemisphere cool season. Mon. Wea. Rev., 149, 2975–2991.

Professional Memberships

  • American Geophysical Union