| Dynamically coupling the non-linear Stokes equations with the shallow ice approximation in glaciology: Description and first applications of the ISCAL method J Ahlkrona, P Lötstedt, N Kirchner, T Zwinger Journal of Computational Physics 308, 1-19, 2016 | 30 | 2016 |
| Shallow ice approximation, second order shallow ice approximation, and full Stokes models: A discussion of their roles in palaeo-ice sheet modelling and development N Kirchner, J Ahlkrona, EJ Gowan, P Lötstedt, JM Lea, R Noormets, ... Quaternary Science Reviews 147, 136-147, 2016 | 25 | 2016 |
| Stabilized equal low-order finite elements in ice sheet modeling–accuracy and robustness C Helanow, J Ahlkrona Computational Geosciences 22, 951-974, 2018 | 20 | 2018 |
| Accuracy of the zeroth-and second-order shallow-ice approximation–numerical and theoretical results J Ahlkrona, N Kirchner, P Lötstedt Geoscientific Model Development 6 (6), 2135-2152, 2013 | 16 | 2013 |
| A numerical study of scaling relations for non-newtonian thin-film flows with applications in ice sheet modelling Ahlkrona, N Josefin Kirchner, P Lötstedt Quarterly Journal Of Mechanics And Applied Mathematics, 2013 | 16 | 2013 |
| A meshfree approach to non-Newtonian free surface ice flow: Application to the Haut Glacier d'Arolla J Ahlkrona, V Shcherbakov Journal of Computational Physics 330, 633-649, 2017 | 15 | 2017 |
| Implementing higher order dynamics into the ice sheet model SICOPOLIS J Ahlkrona | 9 | 2011 |
| Accuracy of the zeroth-and second-order shallow ice approximation–numerical and theoretical results, Geosci. Model Dev., 6, 2135–2152, doi: 10.5194 J Ahlkrona, N Kirchner, P Lötstedt gmd-6-2135-2013, 2013 | 7 | 2013 |
| Increasing stable time-step sizes of the free-surface problem arising in ice-sheet simulations A Löfgren, J Ahlkrona, C Helanow Journal of Computational Physics: X 16, 100114, 2022 | 4 | 2022 |
| A cut finite element method for non-Newtonian free surface flows in 2D-application to glacier modelling J Ahlkrona, D Elfverson Journal of Computational Physics: X 11, 100090, 2021 | 3 | 2021 |
| Equal-Order Stabilized Finite Element Approximation of the p-Stokes Equations on Anisotropic Cartesian Meshes J Ahlkrona, M Braack Computational Methods in Applied Mathematics 20 (1), 1-25, 2020 | 2 | 2020 |
| Computational Ice Sheet Dynamics: Error control and efficiency J Ahlkrona Acta Universitatis Upsaliensis, 2016 | 2 | 2016 |
| Galerkin Least-Squares Stabilization in Ice Sheet Modeling-Accuracy, Robustness, and Comparison to other Techniques C Helanow, J Ahlkrona arXiv preprint arXiv:1702.08369, 2017 | 1 | 2017 |
| The ISCAL method and the Grounding Line-Combining the Stokes equations with the Shallow Ice Approximation and Shelfy Stream Approximation J Ahlkrona Technical Report 2016-006, 1-13, 2016 | 1 | 2016 |
| A Numerical Study of the Validity of Shallow Ice Approximations J Ahlkrona, N Kirchner, P Lötstedt Dept. of Information Technology, Uppsala University, 2012 | 1 | 2012 |
| Weak form Shallow Ice Approximation models with an improved time step restriction I Tominec, J Ahlkrona arXiv preprint arXiv:2403.06811, 2024 | | 2024 |
| Computational Modeling of Ice Sheets and Glaciers I Tezaur, J Ahlkrona, M Hoffman, M Perego Computing in Science & Engineering 25 (3), 4-6, 2023 | | 2023 |
| Increasing numerical stability of mountain valley glacier simulations: implementation and testing of free-surface stabilization in Elmer/Ice A Löfgren, T Zwinger, P Råback, C Helanow, J Ahlkrona EGUsphere 2023, 1-22, 2023 | | 2023 |
| Theoretical results on a block preconditioner used in ice-sheet modeling: eigenvalue bounds for singular power-law fluids C Helanow, J Ahlkrona arXiv preprint arXiv:2307.14688, 2023 | | 2023 |
| Theme Articles I Tezaur, J Ahlkrona, M Hoffman, M Perego Masthead 1, 17, 2023 | | 2023 |
Per Lötstedtprofessor in numerical analysis, Uppsala UniversityVerified email at it.uu.se
