Development of a Modern Open Source Magnetospheric Computation Tool
Larsen, Nicholas; Mishev, Alexander; Usoskin, Ilya (2023-12-14)
14.12.2023
Larsen, N., Mishev, A., & Usoskin, I. (2023). Development of a modern open source magnetospheric computation tool. Proceedings of 27th European Cosmic Ray Symposium — PoS(ECRS), 142. https://doi.org/10.22323/1.423.0142
https://creativecommons.org/licenses/by-nc-nd/4.0/
© Copyright owned by the author(s) under the terms of the Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International License (CC BY-NC-ND 4.0).
https://creativecommons.org/licenses/by-nc-nd/4.0/
© Copyright owned by the author(s) under the terms of the Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International License (CC BY-NC-ND 4.0).
https://creativecommons.org/licenses/by-nc-nd/4.0/
Julkaisun pysyvä osoite on
https://urn.fi/URN:NBN:fi:oulu-202401231413
https://urn.fi/URN:NBN:fi:oulu-202401231413
Tiivistelmä
Abstract
Accurate modelling of cosmic-ray trajectories within the Earth's magnetosphere is important when analysing the impact of cosmic-rays at Earth as well studying their sources, especially cosmic-rays that have a solar origin. In order to compute these trajectories accurately a sophisticated computational tool is required to perform numerical integration over the particle's motion whilst also providing a realistic model of the Earth's magnetosphere. A new tool named "Oulu - Open-source geomagneToSphere prOpagation tool" (OTSO) is presented here to fulfil this role. A comparison between OTSO and an older, out of date, but widely used verified tool, namely MAGNETOCOSMICS, is conducted for various key geomagnetospheric phenomena. A good agreement is found between the two tools supporting the usefulness of OTSO as a more modern alternative tool which can be developed further by the community due to its open-source nature.
Accurate modelling of cosmic-ray trajectories within the Earth's magnetosphere is important when analysing the impact of cosmic-rays at Earth as well studying their sources, especially cosmic-rays that have a solar origin. In order to compute these trajectories accurately a sophisticated computational tool is required to perform numerical integration over the particle's motion whilst also providing a realistic model of the Earth's magnetosphere. A new tool named "Oulu - Open-source geomagneToSphere prOpagation tool" (OTSO) is presented here to fulfil this role. A comparison between OTSO and an older, out of date, but widely used verified tool, namely MAGNETOCOSMICS, is conducted for various key geomagnetospheric phenomena. A good agreement is found between the two tools supporting the usefulness of OTSO as a more modern alternative tool which can be developed further by the community due to its open-source nature.
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