首页|Magnetohydrodynamic simulation of coronal mass ejections using interplanetary scintillation data observed from radio sites ISEE and LOFAR

Magnetohydrodynamic simulation of coronal mass ejections using interplanetary scintillation data observed from radio sites ISEE and LOFAR

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  • NETL
  • NSTL
  • Elsevier
Interplanetary scintillation (IPS) is a useful tool for detecting coronal mass ejections (CMEs) throughout interplanetary space. Global magnetohydrodynamic (MHD) simulations of the heliosphere, which are usually used to predict the arrival and geo-effectiveness of CMEs, can be improved using IPS data. In this study, we demonstrate an MHD simulation that includes IPS data from multiple stations to improve CME modelling. The CMEs, which occurred on 09-10 September 2017, were observed over the period 10-12 September 2017 using the Low-Frequency Array (LOFAR) and IPS array of the Institute for Space-Earth Environmental Research (ISEE), Nagoya University, as they tracked through the inner heliosphere. We simulated CME propagation using a global MHD simulation, SUSANOO-CME, in which CMEs were modeled as spheromaks, and the IPS data were synthesised from the simulation results. The MHD simulation suggests that the CMEs merged in interplanetary space, forming complicated IPS g-level distributions in the sky map. We found that the MHD simulation that best fits both LOFAR and ISEE data provided a better reconstruction of the CMEs and a better forecast of their arrival at Earth than from measurements when these simulations were fit from the ISEE site alone. More IPS data observed from multiple stations at different local times in this study can help reconstruct the global structure of the CME, thus improving and evaluating the CME modelling.

Interplanetary scintillationCoronal mass ejectionSolar windSpace weather forecastingMagnetohydrodynamics

Kazumasa Iwai、Richard A. Fallows、Mario M. Bisi、Daikou Shiota、Bernard V. Jackson、Munetoshi Tokumaru、Ken'ichi Fujiki

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Institute for Space-Earth Environmental Research, Nagoya University, Furo-cho, Chikusa-ku, Nagoya 464-8601, Japan

ASTRON - The Netherlands Institute for Radio Astronomy, Oude Hoogeveensedijk 4, 7991 PD Dwingeloo, the Netherlands||RAL Space. United Kingdom Research and Innovation (UKRI), Science & Technology Facilities Council (STFC), Rutherford Appleton Laboratory (RAL), Harwell Campus, Oxfordshire OC11 0QX, UK

RAL Space. United Kingdom Research and Innovation (UKRI), Science & Technology Facilities Council (STFC), Rutherford Appleton Laboratory (RAL), Harwell Campus, Oxfordshire OC11 0QX, UK

National Institute of Information and Communications Technology, 4-2-1 Nukui-kita, Koganei, Tokyo 184-8795, Japan||Institute for Space-Earth Environmental Research, Nagoya University, Furo-cho, Chikusa-ku, Nagoya 464-8601, Japan

Center for Astrophysics and Space Sciences, University of California, San Diego, LaJolla, CA 92093-0424, USA

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2023

10.1016/j.asr.2022.09.028

Advances in space research: The official journal of the Committee on Space Research

Advances in space research: The official journal of the Committee on Space Research

EI
ISSN：0273-1177
年,卷(期)：2023.72(12)
  • 52