Josefin Ahlkrona

Bitr. universitetslektor

Visa sidan på svenska
Works at Department of Mathematics (incl. Math. Statistics)
Visiting address Kräftriket hus 6
Room 322
Postal address Matematiska institutionen 106 91 Stockholm

About me


I am an assistant professor in scientific computing with applications in climate science. My research is primarly about how numerical methods can be used acccurately and robustly in climate models. My specific research interests includes development and analysis of finite element methods, ice sheet modelling, model adaptivity, and more recently ocean modelling and stochastic processes. I am also interested in perturbation expansions and radial basis function methods.

For an overview on what my research in scientific computing with application ice sheet modelling is about, you can read this popular science article in the student magazine XRDS: Crossroads, the ACM Magazine for Students. 

During previous positions I have worked as a postdoctoral researcher at the department of mathematics at Christian-Albrechts-Universität in Kiel (Germany) and as a PhD candidate at the IT-department at Uppsala University  (Sweden).



This spring I will teach the programming part of the course Geometry and Programming for Teachers in Mathematics






  • The Numerical (in?)Stability of Ice Sheet Models, Seminar at the Division of Scientific Computing, Uppsala University, 2018
  • Local Projection Stabilization of the p-Stokes Equations - Motivated by Ice Sheet Modelling,  Seminar at the Division of Numerical Analysis, Mathematics, Royal Institute of Technology, Stockholm 2017
  • Finite Element Discretization of the p-Stokes Equations for Glaciological Applications, at the workshop "Numerical Methods for PDEs and their applications", Mittag-Leffler Institut, Stockholm 2017 
  • The Impact of Ice Sheet Melting on the Ocean – Reducing Uncertainty in Predictions of Future Sea-Level Rise and Ocean Circulation by Improving Computer Models, Arctic Circle Assembly, 2017
  • Towards stable ice sheet simulations – Inf-sup stabilization of the p-Stokes equations on anisotropic meshes, SIAM Conference on Mathematical and Computational Issues in the Geosciences, Erlangen, 2017
  • Local projection stabilization for the p-Stokes equations, 12th International Workshop on Variational Multiscale and Stabilized Finite Elements, Sevilla, 2017
  • The p-Stokes equation with glaciological applications, CSE workshop 2017, Plön, 2017
  • Ice Sheet Modelling ISCAL (Ice Sheet Coupled Approximation Levels) - Dynamically Coupling the Non-linear Stokes Equations with the Shallow Ice Approximation - European Numerical Mathematics and Advanced Applications, Ankara, September 2015
  • ISCAL (Ice Sheet Coupled Approximation Levels) - an Ice Sheet Model applied in the FROZEN-project - SIAM Conference on Mathematical and Computational Issues in the Geosciences, Stanford, June 2015
  • The Fast Full Stokes Method (FFS) Applied to the Greenland Ice Sheet - International Symposium on Contribution of Glaciers and Ice Sheets to Sea Level Change, Chamonix, May 2014.
  • Fast Full Stokes (FFS) - Dynamic Coupling of the SIA and full Stokes Equations - American Geophysical Union Fall Meeting 2013, San Francisco, December 2013.
  • Improving paleosimulations of Ice Sheet/Ice Stream/Ice Shelf Systems: The development of a Fast Full Stokes numerical ice code, and first applications - Bolin Days 2013 - Stockholm University, November 2013.
  • The Second-Order Shallow Ice Approximation - Workshop in Ice Modeling and Simulation, Division of Scientific Computing, Uppsala University, February 2012.
  • Ice Sheet Modeling - Improving the Modeling of Ice Dynamics - Seminar at the Department of Numerical Analysis, The Royal Institute of Technology KTH, April 2011.
  • Ice Streams in the Past, the Present and the Future: A Challenge for Numerical Modeling - Annual Meeting of the Bert Bolin Centre for Climate Research, Stockholm, November 2010.
  • Updating the ice sheet model SICOPOLIS with an improved treatment of ice flow - International Glaciological Society Nordic Branch Meeting 2010, Copenhagen, October 2010.
  • Implementing Second Order Equations into SICOPOLIS - Seminar at the Department of Physical Geography and Quaternary Geology, Stockholm University, October 2010.

Last updated: September 13, 2019

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