M.Sc. Sara M. Vallejo-Bernal

Doctoral Researcher

Sara M. Vallejo-Bernal is a doctoral researcher in the Complexity Science Research Department of the Potsdam Institute for Climate Impact Research (PIK) in Germany. Since December 2020, she has been investigating the spatio-temporal patterns of heavy precipitation events triggered by atmospheric rivers and their relation to natural hazards. To this aim, she has developed and applied a methodological framework based on nonlinear correlation measures and complex climate networks. Her work is part of the BMBF-funded project ClimXtreme. Sara holds a master’s degree in applied mathematics and a bachelor's degree in civil engineering, both from the National University of Colombia. Her research background also includes stochastic hydrology and meteorology, and tropical climate dynamics.


Potsdam Institute for Climate Impact Research (PIK)
P.O. Box 60 12 03
14412 Potsdam


Institute of Geosciences, University of Potsdam, Potsdam, Germany


  • Since December 2020: Ph.D. Candidate in Geosciences. Potsdam Institute for Climate Impact Research. University of Potsdam, Institute of Geosciences. Supervisors: Prof. Dr. Jürgen Kurths and PD Dr. Norbert Marwan.
  • September 2020: Master of Science's Degree in Applied Mathematics. Universidad Nacional de Colombia, Sede Medellín. Master Thesis: A conceptual stochastic rainfall-runoff model of an order-one catchment under a stationary precipitation regime. Supervisors: Prof. Dr. Jorge M. Ramírez and Prof. Dr. Germán Poveda.
  • August 2016: Bachelor's Degree in Civil Engineering. Universidad Nacional de Colombia, Sede Medellín.

Research Interests

  • Extreme and compound events
  • Land-atmosphere interactions
  • Tropical climatology
  • Natural hazards
  • Complex system science
  • Non-linear dynamics
  • Probabilistic attribution
  • Applied mathematics

Please visit my google scholar profile for a full list of publications.

Current funding

  • ClimXtreme (A Research Network on Climate Change and Extreme Events)

Former funding

  • VACEA (Vulnerability and Adaptation to Climate Extremes in the Americas)

  • Nonlinear Data Analysis Concepts (University of Potsdam, Institute of Geosciences, GEW-DAP02 )
  • Differential Calculus (National University of Colombia, Science Faculty)

2023: Reviewer in Chaos