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Josefin Ahlkrona

Bitr. universitetslektor

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Arbetar vid Matematiska institutionen
E-post ahlkrona@math.su.se
Besöksadress Kräftriket hus 6
Rum 322
Postadress Matematiska institutionen 106 91 Stockholm

Om mig

 

Jag är biträdande lektor i beräkningsteknik med applikationer i klimatvetenskap. Min forskning handlar främst om hur numeriska metoder ska användas på bästa sätt i klimatmodeller. Mina specifika forskningsintressen inkluderar bland annat utveckling och analys av finita element metoder, inlandsismodellering, modell-adaptivitet, och mer nyligen havsmodellering och stokastiska processer. Jag har även intresse av perturbations-teori och radiella-basfunktion-metoder. 

För en översiktlig introduktion om vad min forskning på beräkningsteknik inom inlandsismodellering handlar om, läs gärna denna populärvetenskapliga artikel i studentmagasinet XRDS: Crossroads, the ACM Magazine for Students

Jag har tidigare arbetat som postdoktor vid matematiska institutionen på Christian-Albrechts-Universität i Kiel, Tyskland, och som doktorand vid IT-institutionen på Uppsala Universitet. 

Undervisning

I vår kommer jag att undervisa programmeringsdelen av kursen Geometri och programmering för lärare i matematik

Forskning

Publikationer

 

Föredrag

  • 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.

 

Senast uppdaterad: 13 september 2019

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