Showing 141 - 160 results of 160 for search '"magnetosphere"', query time: 0.04s Refine Results
  1. 141

    A Bayesian Inference‐Based Empirical Model for Scintillation Indices for High‐Latitude by K. Meziane, A. Kashcheyev, P. T. Jayachandran, A. M. Hamza

    Published 2021-06-01
    “…The solar wind characteristics include the solar wind speed (VSW) and ram pressure (ρSW) as well as the Geocentric Solar Magnetospheric (GSM) By and the Bz components of the interplanetary magnetic field (IMF). …”
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  2. 142

    Fine structures in interlaced magnetic flux ropes via Hall-MHD simulations by Ying-Dong Jia, Hairong Lai, Hanying Wei, Yi Qi, C. T. Russell, Yasong Ge, Tielong Zhang

    Published 2025-01-01
    “…As we replicate previous findings that such interactions can lead to the formation of two new ropes, we also find that magnetic reconnection occurs in multiple locations inside the central current sheet, leading to transient small flux ropes, which is qualitatively consistent with previous magnetospheric multiscale observations. Consequently, each field line undergoes multiple reconnections that alter its connectivity before it exits the current sheet. …”
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  3. 143

    Electron Acceleration by Multiple Fast Fermi Reflections at Earth’s Bow Shock by Y. Y. Liu, J. B. Cao, C. M. Liu, Y. T. Song, D. K. Hu

    Published 2025-01-01
    “…Using measurements from the Magnetospheric Multiscale spacecraft, we report unexpected spiky enhancements of energetic electron flux in the upstream region of the Earth’s bow shock. …”
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  4. 144

    A Proper Use of the Adjacent Land‐Based Observatory Magnetic Field Data to Account for the Geomagnetic Disturbances During Offshore Directional Drilling by Mikhail Kruglyakov, Alexey Kuvshinov, Manoj Nair

    Published 2022-12-01
    “…These measurements are the superposition of the signals from the internal, core and crustal, and external, ionospheric and magnetospheric sources and the noise from magnetic elements in the borehole assembly. …”
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  5. 145

    The Polar Cap (PC) Index: Invalid Index Series and a Different Approach by Peter Stauning

    Published 2020-10-01
    “…Abstract The Polar Cap (PC) indices are derived from the magnetic variations generated by the transpolar convection of magnetospheric plasma and embedded magnetic fields driven by the interaction with the solar wind. …”
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  6. 146

    Statistical analysis on the validity of the cold plasma approximation for chorus waves based on Van Allen Probe observations and their effects on radiation belt electrons by AoJun Ren, Jiang Yu, Jing Wang, ZuZheng Chen, XiaoMan Liu

    Published 2025-01-01
    “…Theoretical analysis has demonstrated that the dispersion relation of chorus waves plays an essential role in the resonant interaction and energy transformation between the waves and magnetospheric electrons. Previous quantitative analyses often simplified the chorus dispersion relation by using the cold plasma assumption. …”
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  7. 147

    Absorption of a twisted photon by an electron in strong magnetic field by A. A. Shchepkin, D. V. Grosman, I. I. Shkarupa, D. V. Karlovets

    Published 2025-01-01
    “…Our findings can help to improve the understanding of the QED processes in critical fields, typical for astrophysical environments, e.g. magnetospheres of neutron stars.…”
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  8. 148

    The Ionospheric Dynamics of the African Sector Responding to a Severe Geomagnetic Storm; the Storm of 3–5 November 2021 by Wellen Rukundo

    Published 2023-03-01
    “…Abstract The sudden storm commencement (SSC) of 3 November 2021, a severe storm was detected through disturbances in magnetospheric and ring current systems at around 1942 UT. …”
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  9. 149

    Comparing Three Approaches to the Inducing Source Setting for the Ground Electromagnetic Field Modeling due to Space Weather Events by Elena Marshalko, Mikhail Kruglyakov, Alexey Kuvshinov, Liisa Juusola, Norah Kaggwa Kwagala, Elena Sokolova, Vyacheslav Pilipenko

    Published 2021-02-01
    “…Abstract Ground‐based technological systems, such as power grids, can be affected by geomagnetically induced currents (GIC) during geomagnetic storms and magnetospheric substorms. This motivates the necessity to numerically simulate and, ultimately, forecast GIC. …”
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  10. 150

    Forecasting the Probability of Large Rates of Change of the Geomagnetic Field in the UK: Timescales, Horizons, and Thresholds by A. W. Smith, C. Forsyth, I. J. Rae, T. M. Garton, T. Bloch, C. M. Jackman, M. Bakrania

    Published 2021-09-01
    “…When evaluated during two example magnetospheric storms we find that all scores increase significantly, indicating that the models work better during active intervals. …”
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    Article
  11. 151

    Determining ULF Wave Contributions to Geomagnetically Induced Currents: The Important Role of Sampling Rate by Michael D. Hartinger, Xueling Shi, Craig J. Rodger, Ikuko Fujii, E. Joshua Rigler, Karl Kappler, Jürgen Matzka, Jeffrey J. Love, Joseph B. H. Baker, Daniel H. Mac Manus, Michael Dalzell, Tanja Petersen

    Published 2023-05-01
    “…Abstract Past studies found that large‐amplitude geomagnetically induced current (GIC) related to magnetospheric Ultra Low Frequency (ULF) waves tend to be associated with periods >120 s at magnetic latitudes >60°, with comparatively (a) smaller GIC amplitudes at lower latitudes and shorter wave periods and (b) fewer reports of waves associated with GIC at lower latitudes. …”
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  12. 152

    Giant Hall Waves Launched by Superconducting Phase Transition in Pulsars by Ashley Bransgrove, Yuri Levin, Andrei M. Beloborodov

    Published 2025-01-01
    “…The Hall waves also couple to slow magnetospheric changes, which cause anomalous braking indices. …”
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  13. 153

    Global Sensitivity Analysis and Uncertainty Quantification for Background Solar Wind Using the Alfvén Wave Solar Atmosphere Model by Aniket Jivani, Nishtha Sachdeva, Zhenguang Huang, Yang Chen, Bart van derHolst, Ward Manchester, Daniel Iong, Hongfan Chen, Shasha Zou, Xun Huan, Gabor Toth

    Published 2023-01-01
    “…The Space Weather Modeling Framework is a state‐of‐the‐art framework that offers full Sun‐to‐Earth simulations by computing the background solar wind, CME propagation, and magnetospheric impact. However, reliable long‐term predictions of CME events require uncertainty quantification (UQ) and data assimilation. …”
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  14. 154

    A Framework for Understanding and Quantifying the Loss and Acceleration of Relativistic Electrons in the Outer Radiation Belt During Geomagnetic Storms by Kyle R. Murphy, Ian R. Mann, David G. Sibeck, I. Jonathan Rae, C.E.J. Watt, Louis G. Ozeke, Shri G. Kanekal, Daniel N. Baker

    Published 2020-05-01
    “…Analysis of the RBC during each of these phases demonstrates that they both respond coherently to solar wind and magnetospheric driving. However, the response is independent of whether the storm response is associated with either a CME or CIR. …”
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  15. 155

    Ionospheric Response to the Coronal Hole Activity of August 2020: A Global Multi‐Instrumental Overview by Waqar Younas, Majid Khan, C. Amory‐Mazaudier, P. O. Amaechi

    Published 2022-12-01
    “…On the storm day (2 August), a steady southward directed interplanetary magnetic field Bz caused the penetration of magnetospheric convection electric field and positive storm effect in daytime sectors. …”
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  16. 156

    Sudden Commencements and Geomagnetically Induced Currents in New Zealand: Correlations and Dependance by A. W. Smith, C. J. Rodger, D. H. Mac Manus, I. J. Rae, A. R. Fogg, C. Forsyth, P. Fisher, T. Petersen, M. Dalzell

    Published 2024-01-01
    “…These GICs can damage or degrade equipment if they are sufficiently intense—understanding and forecasting them is of critical importance. One of the key magnetospheric phenomena are Sudden Commencements (SCs). …”
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  17. 157

    Geomagnetically Induced Currents and Harmonic Distortion: High Time Resolution Case Studies by Mark A. Clilverd, Craig J. Rodger, James B. Brundell, Michael Dalzell, Ian Martin, Daniel H. Mac Manus, Neil R. Thomson

    Published 2020-10-01
    “…Three case studies are investigated, each involving high rates of change of local geomagnetic field, but with different timescales of magnetospheric driver mechanisms, and different substation transformer configurations. …”
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  18. 158

    Distribution and Occurrence Frequency of dB/dt Spikes During Magnetic Storms 1980–2020 by A. Schillings, L. Palin, H. J. Opgenoorth, M. Hamrin, L. Rosenqvist, J. W. Gjerloev, L. Juusola, R. Barnes

    Published 2022-05-01
    “…Abstract The physical magnetospheric cause for geomagnetically induced currents (GICs) are rapid time‐varying magnetic fields (dB/dt), which occur mainly during magnetic substorms and storms. …”
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  19. 159

    Improved Constraints on the Vertical Profile of CH4 at Jupiter’s Mid- to High Latitudes, Using IRTF-TEXES and SOFIA-EXES Spectroscopy by James A. Sinclair, Thomas K. Greathouse, Rohini S. Giles, Matthew Richter, Maisie Rashman, Curtis de Witt, Julianne Moses, Vincent Hue, Pablo Rodríguez-Ovalle, Thierry Fouchet, Ananyo Bhattacharya, Bilal Benmahi, Glenn S. Orton, Leigh N. Fletcher, Patrick G. J. Irwin

    Published 2025-01-01
    “…For a subset of latitudes/dates, we find that the CH _4 homopause level is elevated in the region enclosed inside of, or magnetospherically poleward of, the northern ultraviolet main auroral emissions (MAEs) in comparison to the region outside or equatorward of the MAE. …”
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  20. 160

    A Quantitative Comparison of High Latitude Electric Field Models During a Large Geomagnetic Storm by L. Orr, A. Grocott, M.‐T. Walach, G. Chisham, M. P. Freeman, M. M. Lam, R. M. Shore

    Published 2023-01-01
    “…Abstract Models of the high‐latitude ionospheric electric field (EF) are commonly used to specify the magnetospheric forcing in thermosphere or whole atmosphere models. …”
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