Kravtsov, Sergey
kravtsov@uwm.eduGLRF 3003E

Kravtsov, Sergey

Professor

Web: Personal Website

Educational Degrees

  • PhD, Physical Oceanography, Florida State, 1998
  • MS, Moscow Institute of Physics and Technology, 1993
  • BS, Physics and Mathematics, Moscow Institute of Physics and Technology, 1991

Research Positions

  • Research scientist, Institute of Geophysics and Planetary Physics, UCLA, 2002-2004
  • Postdoctoral Researcher, Institute of Geophysics and Planetary Physics, UCLA, 1999-2001

Research Interests

My research is directed towards understanding the Earth's climate variability. I am particularly interested in studying how the interactions between processes acting on small (synoptic) scales with larger-scale (regional-to-global) processes affect the overall climate behavior. Examples of the problems I am dealing with include:

  • analysis and attribution of the Earth's surface temperature trends,
  • decadal climate variability in the tropical Pacific and Southern Ocean,
  • low-frequency, intraseasonal, variability of atmospheric jet streams,

among others. I approach these problems via a combination of statistical data analyses and dynamical studies that employ a hierarchy of climate models.

Selected Service and Projects

  • Collaborative Research: Regional climate-change projections through next-generation empirical and dynamical models. DOE research grant, 2007-2010.
  • Stochastic mode reduction in prototype climate models. UWM Research Growth Initiative, 2007-08.
  • Empirical Model Reduction and the Modeling Hierarchy in Climate Dynamics and the Geosciences, Stochastic Physics and Climate Modeling, T. Palmer and P. Williams, Eds., Cambridge University Press, 2009, with M. Ghil and D. Kondrashov.
  • Quasi-periodic decadal cycles in levels of lakes Michigan and Huron, J. of Great Lakes Research, (2009), 35 (1), 30-35, with J. L. Hanrahan and P. J. Roebber.
  • The relationship between statistically linear and nonlinear feedbacks and zonal-mean flow variability in an idealized climate model. J. Atmospheric Sciences (2009) 66, 353-372, with J. E. T. Hoeve, S. B. Feldstein, S. Lee, and S.-W. Sun.

Selected Publications

Kravtsov, Sergey V., and Reznik, Gregory. “Monopoles in a uniform zonal flow on a quasi-geostrophic beta-plane: effects of the Galilean non-invariance of the rotating shallow-water equations.” Journal of Fluid Mechanics. (2021).
Gavrilov, Andrey, Kravtsov, Sergey V., and Mukhin, Dmitriy. “Analysis of twentieth century surface air temperature using linear dynamical modes.” Chaos. (2020).
Kravtsov, Sergey V., and Reznik, Gregory. “Numerical solutions of the singular vortex problem.” Physics of Fluids. (2019).
Kravtsov, Sergey V., Grimm, Christian, and Gu, Shijie. “Global-scale multidecadal variability missing in the state-of-the-art climate models.” npj Climate and Atmospheric Science, nature.com 1. (2018).
Jajcay, Nikola, Kravtsov, Sergey V., Sugihara, George, Tsonis, Anastasios, and Palus, Milan. “Synchronization and causality across time scales in El Nino/Southern Oscillation.” npj Climate and Atmospheric Science, nature.com 1. (2018).
Kravtsov, Sergey V., and Callicutt, David. “Pronounced differences between observed and CMIP5 simulated multidecadal climate variability in the twentieth century.” Geophysical Research Letters/Wiley. Ed. Diffenbaugh, Noah. (2017).
Kravtsov, Sergey V., and Callicutt, David. “On semi-empirical decomposition of multidecadal climate variability into forced and internally generated components.” International Journal of Climatology/Wiley. Ed. Huth, Radan. (2017).
Kravtsov, Sergey V., Roebber, Paul, and Brazauskas, Vytaras. “A virtual climate library of surface temperature over North America for 1979–2015.” Nature Scientific Data. (2017).
Sugiyama, Noriyuki, Kravtsov, Sergey V., and Roebber, Paul. “Multiple climate regimes in an idealized lake–ice–atmosphere model.” Climate Dynamics/Springer. Ed. Corti, Susanna. (2017).
Kravtsov, Sergey V., Tilinina, Natalia, Zyulyaeva, Yulia, and Gulev, Sergey. “Empirical Modeling and Stochastic Simulation of Sea Level Pressure Variability.” Journal of Applied Meteorology and Climatology 55. (2016): 1197-1219.
Kravtsov, Sergey V., Wyatt, Marcia, Curry, Judith, and Tsonis, Anastasios. “Comment on “Atlantic and Pacific multidecadal oscillations and Northern Hemisphere temperatures”.” Science 350.6266 Ed. Smith, Jesse. (2015): 1326.
Kravtsov, Sergey V., Rudeva, Irina, and Gulev, Sergey. “Reconstructing sea-level pressure variability via a feature tracking approach.” Journal of the Atmospheric Sciences 72. Ed. Wu, Zhaohua. (2015): 487-506.
Hanrahan, Janel, Roebber, Paul, and Kravtsov, Sergey V. “Attribution of Decadal-Scale Lake-Level Trends in the Michigan-Huron System. Part II: Recent evaporative effects.” Water 6.8 Ed. Gong, Cherry. (2014): 2278-2299.
Kravtsov, Sergey V., Wyatt, Marcia, Curry, Judith, and Tsonis, Anastasios. “Two contrasting views of multidecadal climate variability in the twentieth century.” Geophysical Research Letters 41.19 Ed. Diffenbaugh, Noah. (2014): 6881-6888.
Kravtsov, Sergey V., and Gulev, Sergey. “Kinematics of eddy–mean-flow interaction in an idealized atmospheric model.” Journal of the Atmospheric Sciences, American Meteorological Society. (2013).