Steffen Tietsche

Senior Scientist
Research Department, Earth System Predictability Section, Extended Range


Steffen is interested in ocean and sea-ice variability and predictability, and how these contribute to predictive skill in an Earth System Model.

Professional interests:
  • Subseasonal-to-decadal predictions
  • Sea ice modelling, observation and data assimilation
  • Ocean–sea-ice–atmosphere interactions
  • Ocean reanalysis
  • Forecasting in a changing climate
  • Polar–lower latitude linkages in weather and seasonal prediction
Career background:

Ph.D., Max Planck Institute for Meteorology. Hamburg, Germany (2012). Thesis on “Initialization and predictability of Arctic sea ice in a global climate model”. PhD advisors J. Marotzke, D. Notz, and J. Jungclaus.

Diplom (M.Sc. equivalent) in Physics, University of Potsdam. Potsdam, Germany (2008). Specialization in climate science (S. Rahmstorf) and nonlinear dynamics ( J. Kurths). Thesis on "Destruction of Anderson Localization in nonlinear lattices" (supervised by A. Pikovsky).

Visiting student, University of WarwickCoventry, UK (2003–2004)

Professional Experience
  • Since 08/2016: Senior Scientist, Research Department, ECMWF
  • 07/2015–07/2016: Scientist, Research Department, ECMWF
  • 02/2015: Visiting Scientist, GFDL, Climate Change, Variability & Prediction Group
  • 05/2012–06/2015: PostDoc, NCAS-Climate, Department of Meteorology, University of Reading
  • 01/2012–04/2012: PostDoc, Max Planck Institute for Meteorology, Hamburg
  • 06/2008–01/2012: Doctoral Student, Max Planck Institute for Meteorology, Hamburg
  • 2007: Research Assistant, “Statistical Physics/Theory of Chaos” Group, University of Potsdam
External recognitions
  • Since 2022: Work package lead for HE ACCIBERG project
  • 2019-2021: Work package lead for H2020 KEPLER project
  • 2016–2018: Work package lead for H2020 SPICES project