Vlasiator

 

Publications

    2017

  • Palmroth, M., Hoilijoki, S., Juusola, L., Pulkkinen, T.I., Hietala, H., Pfau-Kempf, Y., Ganse, U., von Alfthan, S., Vainio, R. and Hesse, M., "Tail reconnection in the global magnetospheric context: Vlasiator first results", Annales Geophysicae, 35, 1269-1274, https://doi.org/10.5194/angeo-35-1269-2017, 2017.
  • Hoilijoki, Sanni: Simulations of solar wind – magnetosheath – magnetopause interactions (Doctoral dissertation), http://urn.fi/URN:ISBN:978-952-336-019-8, 2017.
  • Hoilijoki, S., Ganse, U., Pfau-Kempf, Y., Cassak, P. A., Walsh, B. M., Hietala, H., von Alfthan, S., and Palmroth, M, "Reconnection rates and X line motion at the magnetopause: Global 2D-3V hybrid-Vlasov simulation results", Journal of Geophysical Research: Space Physics, vol. 122, pp. 2877–2888, doi:10.1002/2016JA023709, 2017.
  • 2016

  • Pfau-Kempf, Yann: Vlasiator From local to global magnetospheric hybrid-Vlasov simulations (Doctoral dissertation) http://urn.fi/URN:ISBN:978-952-336-001-3, 2016.
  • Pfau-Kempf, Y., Hietala, H., Milan, S. E., Juusola, L., Hoilijoki, S., Ganse, U., von Alfthan, S., and Palmroth, M., "Evidence for transient, local ion foreshocks caused by dayside magnetopause reconnection", Annales Geophysicae, vol 34, no. 11, pp. 943-959. doi: 10.5194/angeo-34-943-2016, 2016.
  • Hoilijoki, S., Palmroth, M., Walsh, B. M., Pfau-Kempf, Y., von Alfthan, S., Ganse, U., Hannuksela, O., and Vainio, R., "Mirror modes in the Earth's magnetosheath: Results from a global hybrid-Vlasov simulation", Journal of Geophysical Research: Space Physics, 121, doi:10.1002/2015JA022026, 2016.
  • 2015

  • Palmroth, M., Archer, M., Vainio, R., Hietala, H., Pfau-Kempf, Y., Hoilijoki, S., Hannuksela, O., Ganse, U., Sandroos, A., von Alfthan, S., and Eastwood, J., "ULF foreshock under radial IMF: THEMIS observations and global kinetic simulation Vlasiator results compared." Journal of Geophysical Research: Space Physics, 120, doi:10.1002/2015JA02152, 2015.
  • Sandroos, A., von Alfthan, S., Hoilijoki, S., Honkonen, I., Kempf, Y., Pokhotelov, D., and Palmroth, M, "Vlasiator: Global Kinetic Magnetospheric Modeling Tool", Astronomical Society of the Pacific Conference Series, Numerical Modeling of Space Plasma Flows ASTRONUM-2014, ASP Volume 498. Proceedings of a 9th International Conference Held 23-27 Jun, 2014 in Long Beach, p. 222, 2015.
  • Kempf, Y., Pokhotelov, D., Gutynska, O., Wilson III, L. B., Walsh, B. M., von Alfthan, S., Hannuksela, O., Sibeck, D. G., and Palmroth, M., "Ion distributions in the Earth's foreshock: hybrid-Vlasov simulation and THEMIS observations." Journal of Geophysical Research: Space Physics, 120, 3684-3701, doi:10.1002/2014JA020519, 2015.

  • 2014

  • Von Alfthan, S., Pokhotelov, D., Kempf, Y., Hoilijoki, S., Honkonen, I., Sandroos, A. and Palmroth, M., "Vlasiator: First global hybrid-Vlasov simulations of Earth's foreshock and magnetosheath." Journal of Atmospheric and Solar-Terrestrial Physics 120 (2014): 24-35. doi:10.1016/j.jastp.2014.08.012, 2014.

  • 2013

  • Pokhotelov, D., von Alfthan, S., Kempf, Y., Vainio, R., Koskinen, H. E. J., and Palmroth, M., "Ion distributions upstream and downstream of the Earth's bow shock: first results from Vlasiator.", Ann. Geophys., 31, 2207-2212, doi:10.5194/angeo-31-2207-2013, 2013.
  • Kempf, Y., Pokhotelov, D., von Alfthan, S., Vaivads, A., Palmroth, M., and Koskinen, H.E.J, "Wave dispersion in the hybrid-Vlasov model: Verification of Vlasiator." Physics of Plasmas (1994-present) 20.11 (2013): 112114. doi:10.1063/1.4835315, 2013.
  • Honkonen, I., von Alfthan, S., Sandroos, A., Janhunen, P., and Palmroth, M., "Parallel grid library for rapid and flexible simulation development." Computer Physics Communications 184.4 (2013): 1297-1309. doi:10.1016/j.cpc.2012.12.017, 2013.
  • Sandroos, A., Honkinen, I., von Alfthan, S., and Palmroth, M., "Multi-GPU simulations of Vlasov's equation using Vlasiator." Parallel Computing 39.8 (2013): 306-318. doi:10.1016/j.parco.2013.05.001, 2013.
  • von Alfthan, S., Honkonen, I., and Palmroth, S., "Topology aware process mapping." Applied Parallel and Scientific Computing. Springer Berlin Heidelberg, 2013. 297-308. doi:10.1007/978-3-642-36803-5_21, 2013.

  • 2012

  • Palmroth, M., Honkonen, I., Sandroos, A., Kempf, Y., von Alfthan, S., and Pokhotelov, D., "Preliminary testing of global hybrid-Vlasov simulation: Magnetosheath and cusps under northward interplanetary magnetic field." Journal of Atmospheric and Solar-Terrestrial Physics 99 (2013): 41-46. doi:10.1016/j.jastp.2012.09.013, 2012.
  • Kempf, Y., "Numerical and physical validation of Vlasiator--A new hybrid-Vlasov space plasma simulation code." (2012). Thesis, 2012

Presentations

    2017

  • Turc, L., , M. Palmroth, Y. Pfau-Kempf, U. Ganse, S. Hoilijoki, L. Juusola, R. Jarvinen, and von Alfthan, S., Influence of the Alfvén Mach number on the properties of the Earth’s foreshock, invited oral presentation in 27th Cluster Workshop, Bled, Slovenia, 11-15 September, 2017
  • Vainio, R., Afanasiev, A., Battarbee, M., Ganse, U., Kempf, Y., Palmroth, M., and von Alfthan, S., Particle acceleration at collisionless shocks: quasi-linear and hybrid-Vlasov simulations, Exascale Thinking of Particle Energization Problems, NORDITA, Stockholm, Sweden, 28 August - 1 September, 2017
  • Palmroth, Global hybrid-Vlasov simulations of the terrestrial magnetosphere, invited oral presentation in FinCospar national meeting, 23 Aug 2017
  • Pfau-Kempf, Y., Hoilijoki, S., Ganse, U., Juusola, L., Jarvinen, R., von Alfthan, S., Hietala, H., Battarbee, M., Afanasiev, A., Vainio, R., Palmroth, M., Vlasiator – From local to global magnetospheric hybrid-Vlasov simulations, invited oral presentation at AOGS, Singapore, 6-11 Aug, 2017
  • Palmroth, M., Global hybrid-Vlasov simulations of the terrestrial magnetosphere, invited oral presentation in 12th International Conference on Numerical Modeling of Space Plasma Flows, Astronum, Saint Malo, France, Jun 26-30, 2017
  • Ganse, U., Pfau-Kempf, Y., von Alfthan, S., Hoilijoki, S., Palmroth, M., Heterologous Field Solver Domain Decomposition in Vlasiator (FSGrid), oral presentation in Astronum, Saint Malo, France, 26-30 June, 2017
  • Hoilijoki, S., Pfau-Kempf, Y., Ganse, U., von Alfthan, S., Hietala, H., and Palmroth, M., Proton distribution functions from the dayside reconnection region: a view from global kinetic simulation, oral presentation in GEM workshop, Porsthmouth, VA, USA, Jun 19-24, 2017
  • Palmroth, M., & Vlasiator team, Vlasiator – Understanding near-Earth space in six dimensions, invited keynote lecture, European HPC Summit Week, PRACEDays, Barcelona, Spain, May 16, 2017
  • 2016

  • Ganse, U., Pfau-Kempf, Y., Hoilijoki, S., von Alfthan, S., Palmroth, M., and Vainio, R., Global-Local Interaction of Structures Formed in Earth Foreshock Waves, oral presentation in AGU Fall Meeting, San Francisco, USA, Dec 12-16, 2016
  • Hoilijoki, S., Ganse, U., Pfau-Kempf, Y., Cassak, P., Walsh, B.M., Hietala, H., von Alfthan, S., and Palmroth, M., Variability of dayside reconnection in a global hybrid-Vlasov simulation, poster presentation in AGU Fall Meeting, San Francisco, USA, Dec 12-16, 2016
  • Battarbee, M., Vainio, R., Pfau-Kempf, Y., Ganse, U., von Alfthan, S., and Palmrot, M., Hybrid-Vlasov simulations of propagating interplanetary shocks in 5 and 6 dimensions, oral presentation in Global modelling of the space weather chain workshop, Espoo, Finland, 24 -28 Oct.
  • Hoilijoki, S., Ganse, U., Pfau-Kempf, Y., Cassak, P. A., Walsh, B. M., Hietala, H., von Alfthan, S, and Palmroth, M., Variability of dayside reconnection in a global hybrid-Vlasov simulation, oral presentation in Global modelling of the space weather chain workshop, Espoo, Finland, 24 -28 Oct.
  • Ganse, U., Hoilijoki, S., Pfau-Kempf, Y., von Alfthan, S, and Palmroth, M., Global-Local Interaction of Structures Formed in Earth Foreshock Waves, poster presentation in Global modelling of the space weather chain workshop, Espoo, Finland, 24 -28 Oct.
  • Vainio, R., Wimmer-Schweingruber, R. F., Afanasiev, A., Battarbee, M., Berger, L., Dresing, N., Drews, C., Ganse, U., Herber, B., Klassen, A., Palmroth, M., Pfau-Kempf, Y., Steinhagen, J., Valtonen, E., and Yu, J., Particle acceleration in turbulent collisionless shock waves, oral presentation in THOR workshop, Barcelona, Spain, 27-29 Sep, 2016
  • Palmroth, M., Large-scale kinetic simulation of the magnetosphere, invited oral presentation in European Physical Society, Plasma Physics Conference, Leuven, Belgium, 4-8 Jul, 2016
  • Pfau-Kempf, Y, Hietala, H., Hoilijoki, S., Ganse, U., von Alfthan, S., and Palmroth, M., Magnetopause-foreshock interactions induced by dayside reconnection , oral presentation in GEM workshop, Santa Fe, USA, 20-24 June, 2016
  • Hoilijoki, S, Pfau-Kempf, Y., Ganse, U., von Alfthan, S., and Palmroth, M., Global hybrid-Vlasov simulation Vlasiator, oral presentation in GEM workshop, Santa Fe, USA, 20-24 June, 2016
  • Hoilijoki, S, Pfau-Kempf, Y., Ganse, U., Walsh, B., Cassak, P., Doss, C., Hietala, H., von Alfthan, S., Vainio, R., and Palmroth, M., Dayside magnetopause reconnection using a hybrid-Vlasov simulation code Vlasiator, oral presentation in GEM workshop, Santa Fe, USA, 20-24 June, 2016
  • Hoilijoki, S, Pfau-Kempf, Y., Ganse, U., Walsh, B., Cassak, P., Doss, C., Hietala, H., von Alfthan, S., Vainio, R., and Palmroth, M., Reconnection rate at the dayside magnetopause in a global hybrid-Vlasov simulation, poster presentation in GEM workshop, Santa Fe, USA, 20-24 June, 2016
  • Ganse, U., Pfau-Kempf, Y., Hoilijoki, S., von Alfthan, S., Vainio, R., Palmroth, M., Vlasiator: Towards 6D Magnetospheric Hybrid-Vlasov Simulations, invited oral presentation, Astronum, Monterey, CA, June 6 - 10 2016
  • Pfau-Kempf Y. and the team, Vlasiator -- Global hybrid-Vlasov simulations of the Earth's magnetosphere, presentation in the postgraduate seminar series, Physics department, University of Helsinki, May 2016
  • Palmroth, M., Hoilijoki, S., Pfau-Kempf, Y., Hietala, H., Nishimura, T., Angelopoulos, V., Pulkkinen, T. I., Ganse, U., von Alfthan, S., and Vainio, R., Large-scale kinetic simulation of the magnetosphere, invited oral presentation in European Geosciences Union General Assembly, Vienna, Austria, 17-22 April, 2016
  • Pfau-Kempf, Y., Hietala, H., Hoilijoki, S., Palmroth, M., Ganse, U., Sandroos, A., Hannuksela,O., von Alfthan, S., Vainio, R., Magnetopause-foreshock interactions induced by dayside reconnection, oral presentation at the EGU General assembly, 18-22 April, 2016
  • Ganse, U., Pfau-Kempf, Y., Hoilijoki, S., von Alfthan, S., Palmroth, M., Vainio, R.: Large-Scale Structures in Earth Foreshock Waves during Radial IMF, oral presentation, EGU General Assembly, Vienna, Austria, 18-22 April, 2016
  • Hoilijoki, S, Pfau-Kempf, Y., Ganse, U., Walsh, B., Cassak, P., Doss, C., Hietala, H., von Alfthan, S., Laitinen, T., Hannuksela, O., Vainio, R., and Palmroth, M., Effect of the Magnetosheath Waves on the Dayside Magnetopause Reconnection, poster presentation in EGU General Assembly, Vienna, Austria, 18-22 April, 2016
  • Palmroth, M., Recent advances in magnetospheric physics, keynote lecture in 50th annual meeting of the Finnish Physical Society, Physics Days, Oulu, Finland, 29-31 March, 2016
  • 2015

  • Hoilijoki, S., Walsh, B., Laitinen, T., Pfau-Kempf, Y., Ganse, U., Sandroos, A., Hannuksela, O., von Alfthan, S., Hietala, H., Vainio, R., Doss , C., Cassak, P. and Palmroth, M., Influence of the Magnetosheath Waves on the Dayside Reconnection, oral presentation in AGU Fall Meeting, San Francisco, USA, Dec 14-18, 2015
  • Palmroth, M., Hoilijoki, S., Pfau-Kempf, Y., Hietala, H., Nishimura, Y., Angelopoulos, V., Pulkkinen, T., Ganse, U., Hannuksela, O., von Alfthan, S., Battarbee, M., and Vainio, R., Role of dayside transients in a substorm process: Results from the global kinetic simulation Vlasiator, poster presentation in AGU Fall Meeting, San Francisco, USA, Dec 14-18, 2015
  • Pfau-Kempf, Y., Hietala, H., Hoilijoki, S., Palmroth, M., Ganse, U., Sandroos, A., Hannuksela, O., von Alfthan, S. and Vainio, R., Magnetopause-Foreshock Interactions Induced by Dayside Reconnection, poster presentation in AGU Fall Meeting, San Francisco, USA, Dec 14-18, 2015
  • Vainio, R., Palmroth, M., Battarbee, M., Pfau-Kempf, Y., Hoilijoki, S, Ganse, U., von Alfthan, S., The Collisionless Shock in Hybrid-Vlasov Simulations, poster presentation in AGU Fall Meeting, San Francisco, USA, Dec 14-18, 2015
  • Cassak, P., Doss, C., Palmroth, M., Hoilijoki, S., Pfau-Kempf, Y., and Ganse, U., Quantifying the tailward motion of reconnecting flux ropes at magnetopauses of Earth and other planets, oral presentation at AGU Fall meeting, San Francisco, USA, Dec 14-18, 2015
  • Palmroth, M., von Alfthan, S., Sandroos, A., Pfau-Kempf, Y., Hoilijoki, S., van de Kamp, M., Honkonen, I., and Janhunen, P., Towards precise global space weather forecasts: MHD and hybrid-Vlasov simulations compared, invited oral presentation in European Space Weather Week, Ostend, Belgium, 23-27 Nov, 2015
  • Palmroth, M., Vainio, R., Archer, M., Hietala, H., Afanasiev, A., Kempf, Y., Hoilijoki, S., von Alfthan, S., ULF foreshock under radial IMF: THEMIS observations and global kinetic simulation Vlasiator results compared, oral presentation in European Space Weather Week, Ostend, Belgium, 23-27 Nov, 2015
  • Vainio, R., Afanasiev, A., Battarbee, M., Jaakola, J., Ganse, U., Palmroth, M., von Alfthan, S., Hannuksela, O., Hoilijoki, S., Kempf, Y., and Sandroos, A., Particle acceleration in interplanetary shocks: quasilinear and hybrid-Vlasov simulations, oral presentation in European Space Weather Week, Ostend, Belgium, 23-27 Nov, 2015
  • Vainio, R., Afanasiev, A., Battarbee, M., Ganse, U., Palmroth, M., Pfau-Kempf, Y., von Alfthan, S., Particle acceleration in coronal and interplanetary shocks: quasilinear and hybrid-Vlasov simulations, oral presentation in SolarCast-1 meeting, Copenhagen, Denmark, 9-11 Nov, 2015
  • Pfau-Kempf, Y. and the team, Space plasma simulations using Vlasiator, presentation in the Introduction to plasma physics lecture, University of Helsinki, October 2015
  • Pfau-Kempf, Y. and the team, Vlasiator: global hybrid-Vlasov simulations of the Earth's foreshock and magnetosheath, presentation in the Kumpula Computational Chemistry and Physics seminar series, October 2015
  • Palmroth, M., Hoilijoki, S., Pfau-Kempf, Y., Laitinen, T. V., Hietala, H., Pulkkinen, T. I., Ganse, U., Sandroos, A., Hannuksela, O., von Alfthan, S., and Vainio, R., Reconnection in Vlasiator 1: The global system, invited oral presentation, Nordita Magnetic Reconnection in Plasmas workshop, Stockholm, Sweden, 10-14 August 2015
  • Hoilijoki, S., Laitinen, T., Pfau-Kempf, Y., Ganse, U., Sandroos, A., Hannuksela, O., von Alfthan, S., Hietala, H., Vainio, R., and Palmroth, M., Reconnection in Vlasiator: 2. Influence of the magnetosheath waves, oral presentation, Nordita Magnetic Reconnection in Plasmas workshop, Stockholm, Sweden, 10-14 August 2015
  • Pfau-Kempf, Y., Hietala, H., Hoilijoki, S., Palmroth, M., Ganse, U., Sandroos, A., Hannuksela, O., von Alfthan, S., and Vainio, R., Reconnection in Vlasiator: 3. Magnetopause-foreshock interactions, oral presentation, Nordita Magnetic Reconnection in Plasmas workshop, Stockholm, Sweden, 10-14 August 2015
  • Ganse, U., Vainio, R., Spanier, F., Ivascenko, A., Palmroth, M., von Alfthan, S., and Pfau-Kempf, Y., Helical Ion Beams from Fluctuating Shock Structures, oral presentation, International Cosmic Ray Conference, The Hague, The Netherlands, 30 July - 6 August, 2015
  • Afanasiev, A., Vainio, R., Battarbee, M., Palmroth, M., von Alfthan, S., Kempf, Y., Particle acceleration and foreshock evolution in heliospheric shocks from self-consistent Monte Carlo simulations, oral presentation, International Cosmic Ray Conference, The Hague, The Netherlands, 30 July - 6 August 2015
  • Vainio, R., Palmroth, M., Afanasiev, A., Battarbee, M., Archer, M., Hietala, H., Kempf, Y., Hoilijoki, S., von Alfthan, S., ULF foreshock in global kinetic Vlasiator simulations compared to THEMIS observations and quasilinear theory, oral presentation, IUGG General Assembly, Prague, Czech Republic, 22 June - 2 July 2015
  • Hoilijoki, S., Pfau-Kempf, Y., Hannuksela, O., Ganse, U., Sandroos, A., von Alfthan, S., R., and Palmroth, M., Mirror modes in the Earth's magnetosheath: results from a hybrid-Vlasov simulation, poster presentation in GEM workshop, Snowmass, USA, 14-19 June, 2015
  • von Alfthan, S., Kempf, Y., Hoilijoki, S., Honkonen, I., Sandroos, A., Ganse, U., Vainio, R., and Palmroth, M., Vlasiator: Hybrid-Vlasov Simulation Code based on a Conservative Semi-Lagrangian Method, invited oral presentation, Astronum, Avignon, France, 8-12 June 2015
  • Palmroth, M., Vainio, R., Archer, M., Hietala, H., Afanasiev, A., Kempf, Y., Hoilijoki, S., von Alfthan, S., ULF foreshock under radial IMF: THEMIS observations and global kinetic simulation Vlasiator results compared, oral presentation, EGU General Assembly, Vienna, Austria, 12-17 April, 2015
  • Pfau-Kempf., Y, Hoilijoki, S., von Alfthan, S., Sandroos, A., Hannuksela, O., and Palmroth, M., Hybrid-Vlasov simulations of Earth's magnetosphere with Vlasiator: a global view, poster presentation in 49th annual Physics Days, Helsinki, Finland, 17-19 March 2015
  • Palmroth, M., Vainio, R., Archer, M., Hietala, H., Afanasiev, A., Kempf, Y., Hoilijoki, S., and von Alfthan, S., Shocked and turbulent plasmas in the near Earth space: Global hybrid-Vlasov simulations comparisons to in situ measurements, poster presentation in in 49th annual Physics Days, Helsinki, Finland, 17-19 March 2015
  • Hoilijoki, S., Pfau-Kempf., Y, von Alfthan, Hannuksela, O., and Palmroth, M., Mirror mode waves in the Earth's magentosheath: results from a hybrid-Vlasov simulation, poster presentation in 49th annual Physics Days, Helsinki, Finland, 17-19 March 2015

  • 2014

  • Hoilijoki, S., Walsh, B., Kempf, Y., von Alfthan, S., Gutynska, O., Wilson III, L. B., Hannuksela, O., Ganse, U., Sibeck, D. G., and Palmroth M., Birth and Evolution of Mirror Mode Type Fluctuations in the Earth Magnetosheath in a Global Hybrid-Vlasov Simulation, poster presentation in AGU Fall Meeting, San Francisco, USA, 15-19 Dec, 2014
  • Hoilijoki, S., Walsh, B., Kempf, Y., von Alfthan S., Hannuksela, O., and Palmroth, M. Birth and evolution of magnetosheath mirror modes as seen by the global hybrid-Vlasov simulation Vlasiator, oral presentation at Geospace revisited: a Cluster / MAARBLE / van Allen Probes Conference, Rhodes, Greece, Sep 15-20, 2014
  • Sandroos, A., von Alfthan, S., Hoilijoki, S., Honkonen, I., Kempf, Y., Pokhotelov, D., and Palmroth, M., Vlasiator - A Global Kinetic Magnetospheric Modeling Tool, invited oral presentation, ASTRONUM 2014, 23-27 June 2014
  • Palmroth, M., Laitinen, T. V., Kempf, Y., Hannuksela, O., Hoilijoki, S., Pokhotelov, D., and von Alfthan, S., Path for solar wind plasma to the magnetosphere: Vlasiator hybrid-Vlasov global kinetic and GUMICS-4 global MHD simulation results, invited oral presentation in 40th COSPAR Scientific Assembly, Moscow, Russia August 2-10, 2014
  • Kempf, Y., Pokhotelov, D., von Alfthan, S., Hoilijoki, S., Hannuksela, O., and Palmroth, M., Hybrid-Vlasov simulations on the Earth's collisionless bow shock and foreshock region, invited oral presentation at 31st General Assembly of the Internation Union of Radio Science (URSI), Beijing, China, 16-23 Aug 2014
  • Kempf, Y., Gutynska, O., Pokhotelov, D., Wilson III, L., Walsh, B., von Alfthan, S., Sibeck, D., and Palmroth, M., Ion distributions in the Earth's foreshock region: hybrid-Vlasov simulations and spacecraft observations, poster presentation in 31st General Assembly of the International Union of Radio Science (URSI), Beijing, China, 16-23 Aug 2014 (poster, background)
  • Pokhotelov, D., Soucek, J., Kempf, Y., von Alfthan, S., Palmroth, M., and Koskinen, H. E. J., Hybrid-Vlasov simulations of the Earth's bow shock/magnetosheath compared to Cluster observations, oral presentation in European Geophysical Union meeting, Vienna, Austria, Apr 28 - May 2, 2014
  • Palmroth, M., Eastwood, J., Pokhotelov, D., Hietala, H., Kempf, Y., Hoilijoki, S., von Alfthan, S., and Vainio, R., First global hybrid-Vlasiv (Vlasiator) simulation results on foreshock ULF wave activity, poster presentation in European Geophysical Union meeting, Vienna, Austria, Apr 28 - May 2, 2014
  • Vainio, R., Palmroth, M., Kempf, Y., Ganse, U., von Alfthan, S., Afanasiev, A., and Hoilijoki, S., Vlasiator simulations of ion foreshock, presentation in the European Space Weather Week, 2014
  • Von Alfthan, S., Kempf, Y., Ganse, U., Pokhotelov, D., Hoilijoki, S., Hannuksela, O., and Palmroth, M., Vlasiator: Hybrid-Vlasov simulation code based on a conservative semi-Lagrangian method, presentation in GEM workshop, Portsmouth, USA, Jun 15-20, 2014

  • 2013

  • Ion distributions in the Earth's foreshock and magnetosheath obtained using Vlasiator, FinCOSPAR, Tikkurila, Finland, 29-30 August 2013
  • Vlasiator: Hybrid-Vlasov Simulation Code for the Earth's Magnetosphere, SC13, Denver, USA, 16-22 November 2013
  • Pokhotelov, D., von Alfthan, S., Kempf, M., and Palmroth, M., Hybrid-Vlasov simulation of plasma instabilities: First results from Vlasiator, poster presentation in European Geophysical Union General Assembly, Vienna, Austria, 7-12 April, 2013
  • Honkonen, I., von Alfthan, S., Sandroos, A., Janhunen, P., and Palmroth, M., Parallel grid library for rapid and flexible simulation development, poster presentation in European Geophysical Union General Assembly, Vienna, Austria, 7-12 April, 2013
  • Kempf, Y., Pokhotelov, D., Vaivads, A., Koskinen, H. E.J., and Palmroth, M., Wave modes in the hybrid-Vlasov plasma model: comparison of Vlasiator and WHAMP results, poster presentation in European Geophysical Union General Assembly, Vienna, Austria, 7-12 April, 2013
  • Von Alfthan, S., Kempf, Y., Sandroos, A., Honkonen, I., Pokhotelov, D., Hoilijoki, S., and Palmroth, M., Vlasiator: First-ever global hybrid-Vlasov simulation of Earth's magnetosphere, presentation in the 47th Annual meeting of the Finnish Physical Society, Espoo, Finland, 14-16 March, 2013
  • Kempf, Y., Pokhotelov, D., Vaivads, A., Koskinen, H., and Palmroth, M., Wave modes in the hybrid-Vlasov plasma model: Comparison of Vlasiator and WHAMP results, presentation in the 47th Annual meeting of the Finnish Physical Society, Espoo, Finland, 14-16 March, 2013
  • Palmroth. M., Honkonen, I., Sandroos, A., Kempf, Y., von Alfthan, S., Hoilijoki, S., and Pokhotelov, D., First results on Vlasiator: magnetosheath and cusps under northward interplanetary magnetic field, oral presentation in the 47th Annual meeting of the Finnish Physical Society, Espoo, Finland, 14-16 March, 2013
  • Pokhotelov, D., von Alfthan, S., Kempf, Y., Vainio, R., Palmroth, M., Hybrid-Vlasov modeling of ion distribution functions across collisionless bow shock, presentation in 23rd Cluster workshop, Tromso, Norway, 16-20 September, 2013.
  • Palmroth, M., Pokhotelov, D., von Alfthan, S., Kempf, Y., Hoilijoki, S., Koskinen, H., Hietala, H., and Vainio, R., First Vlasiator results of foreshock ULF wave activity, presentation in 23rd Cluster workshop, Tromso, Norway, 16-20 September, 2013
  • Kempf, Y., Pokhotelov, D., Vainio, R., von Alfthan, S., Koskinen, H., and Palmroth, M., Ion distributions up- and downstream of the Earth's collisionless bowshock using Vlasiator, oral presentation in American Geophysical Union Fall Meeting, San Francisco, USA, Dec 9-13, 2013
  • Palmroth, M., Eastwood, J. P., Pokhotelov, D., Hietala, H., Kempf, Y., Hoilijoki, S., von Alfthan, S., and Vainio, R., First Vlasiator results on foreshock ULF wave activity, oral presentation in American Geophysical Union Fall Meeting, San Francisco, USA, Dec 9-13, 2013

  • 2012

  • Honkonen, I., von Alfthan, S., Sandroos, A., Janhunen, P., and Palmroth, M., Parallel grid library with adaptive mesh refinement for development of highly scalable simulations, oral presentation in European Geophysical Union General Assembly, Vienna, Austria, Apr 22-27, 2012
  • Palmroth, M., Honkonen, I., Kempf, Y., von Alfthan, S., and Sandroos, A., Magnetosheath dynamics and lobe reconnection as seen from a global beyond-MHD simulation Vlasiator, poster presentation in European Geophysical Union General Assembly, Vienna, Austria, Apr 22-27, 2012
  • von Alfthan, S., Honkonen, I., Sandroos, A., and Palmroth, M., Optimizing performance of Vlasov simulations using sparse density functions, presentation in European Geophysical Union General Assembly, Vienna, Austria, Apr 22-27, 2012
  • Honkonen, I., von Alfthan, S., Sandroos, A., Palmroth, M., and Kempf, Y., A global magnetospheric test particle simulation using Vlasiator, poster presentation in 39th COSPAR General Assembly, Mysore, India, July 14-22, 2012
  • Von Alfthan, S., Honkonen, I., and Palmroth, M., Network Topology Aware Process Mapping, presentation in PARA 2012 Workshop on the State-of-the-Art in Scientific and Parallel Computing, Finland, June 10-13, 2012
  • Sandroos, A., von Alfthan, S., Honkonen, I., Kempf, Y., Pokhotelov, D., Hoilijoki, S., and Palmroth, M., Vlasiator - new accurate space weather simulation, invited oral presentation in Geospace Environment Modeling meeting, Snowmass, USA, June 17-22, 2012
  • Honkonen, I., von Alfthan, S., Pokhotelov, D., Palmroth, M., Kempf, Y., Sandroos, A., On modeling the Earth's magnetosphere with Vlasiator, a new global hybrid Vlasov code, oral presentation in Problems of Geocosmos, St. Petersburg, Russia, Oct 8-12, 2012
  • Palmroth M., Honkonen, I., Sandroos, A., Kempf, Y., von Alfthan, S., and Pokhotelov, D., Preliminary testing of global hybrid-Vlasov simulation: magnetosheath and cusps under northward interplanetary magnetic field, oral presentation at American Geophysical Union Fall Meeting, San Francisco, Dec 3-7, 2012

  • 2011

  • Honkonen, I., Sandroos, A., and Palmroth, M., Towards a global hybrid Vlasov magnetospheric model: A test particle simulation, poster presentation in 45th Annual Meeting of the Finnish Physical Society, Helsinki, 31.3. 2011
  • Honkonen, I., Sandroos, A., and Palmroth, M., Towards a global hybrid Vlasov magnetospheric model: A test particle simulation, poster presentation in EGU General Assembly, Vienna, Austria, 3-8 Apr, 2011
  • Honkonen, I., Sandroos, A., and Palmroth, M., Towards a global hybrid Vlasov magnetospheric model: A test particle simulation, oral presentation in International Symposium on Recent Observations and Simulations of the Sun-Earth System II, Bulgaria, Sep 11-16, 2011.
  • Von Alfthan, S., Sandroos, A., Honkonen, I., and Palmroth, M., Implementing a global hybrid Vlasov magnetospheric model, presentation in International Symposium on Recent Observations and Simulations of the Sun-Earth System II, Bulgaria, Sep 11-16, 2011

  • 2010

  • Sandroos, A., Daldorff, L. K. S., Honkonen, I., and Palmroth, M., New global-scale Vlasov simulation, poster presentation in International Astronomical Union meeting 'Advances in plasma astrophysics', Italy, Sep 6-10, 2010.

  • 2009

  • Daldorff, L. K. S., Yando, K. B., Palmroth, M., Hietala, H., Janhunen, P., and Lucek, E., Preliminary studies on the development of a global hybrid-Vlasov simulation, poster presentation in 9th International Symposium for Space Simulations, Paris, France, July 3-10, 2009