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Understanding Geomagnetic Storms Through ACE/EPAM Data in the Recent Solar Cycle

Shraddha Patel, Purvee Bharadwaj, Shivalika Sarkar, D. Bharadwaj, Aasim S. Khoja, Palash Tiwari

Abstract


We share our research on the effects of geomagnetic storms on Earth's climate throughout the solar cycle. We use the Kp index value from ACE and several other observatories to comprehend the impact of the geomagnetic storm in this instance. A geomagnetic storm is indicated by a value of 5 or higher on the K-index, which uses an integer between 0 and 9 to quantify disturbances in the horizontal component of the Earth's magnetic field. It is calculated using the highest horizontal component variations that a magnetometer records during a three-hour period. The NOAA G-scale was created with the intention of directly corresponding to the importance of geomagnetic storm impacts. The magnetosphere is first compressed by the rise in solar wind pressure. The Dst index determines the worldwide averaged change in the horizontal portion of the Earth's magnetic field near the magnetic equator using information from a limited number of magnetometer locations. Consideration is given to a potential mechanism wherein solar flare ionising radiation causes earthquakes. Dst is reported almost instantly after being computed once every hour. Dst is between +20 and −20 nano-Tesla (nT) at quiet periods.

Keywords


Geomagnetic storm, Kp index, G-scale, ACE (advanced composition explorer) observatory

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References


Miteva, R.; Samwel, S.W. Catalog of Geomagnetic Storms with Dst Index ≤ −50 nT and Their Solar and Interplanetary Origin (1996–2019). Atmosphere 2023, 14, 1744. https://doi.org/10.3390/atmos14121744

Mayaud PN. Derivation, Meaning and Use of Geomagnetic Indices, Vol ume 22. Washington, DC: American Geophysical Union. 1980.

Gosling JT, McComas DJ, Phillips JL, Bame SJ. Geomagnetic activity associated with Earth passage of interplanetary shock disturbances and coronal mass ejections. Journal of Geophysical Research: Space Physics. 1991 May 1;96(A5):7831-9.

Borrini G, Gosling JT, Bame SJ, Feldman WC. An analysis of shock wave disturbances observed at 1 AU from 1971 through 1978. Journal of Geophysical Research: Space Physics. 1982 Jun 1;87(A6):4365-73.

Marchezi JP, Dai L, Alves LR, Da Silva LA, Sibeck DG, Lago AD, Souza VM, Jauer PR, Veira LE, Cardoso FR, Deggeroni V. Electron Flux Variability and Ultra‐Low Frequency Wave Activity in the Outer Radiation Belt Under the Influence of Interplanetary Coronal Mass Ejections and High‐Speed Solar Wind Streams: A Statistical Analysis from the Van Allen Probes Era. Journal of Geophysical Research: Space Physics. 2022 Aug;127(8): e2021JA029887.

Meena Pokharia, Lalan Prasad, Chandrashekhar Bhoj, Chandni Mathpal. Study of Geomagnetic Storms and Solar and Interplanetary Parameters for Solar Cycles 22 and 24. Solar Physics, 293(9): 20 pp.

Bailey, R.L., Leonhardt, R. Automated detection of geomagnetic storms with heightened risk of GIC. Earth Planet Sp 68, 99 (2016). https://doi.org/10.1186/s40623-016-0477-2

Hafez AG, Ghamry E, Yayama H, Yumoto K. A wavelet spectral analysis technique for automatic detection of geomagnetic sudden commencements. IEEE transactions on geoscience and remote sensing. 2012 May 8;50(11):4503-12.

Curto JJ, Araki T, Alberca LF. Evolution of the concept of sudden storm commencements and their operative identification. Earth, Planets and Space. 2007 Nov;59: i-xii.

Takla, E.M.H., Samwel, S.W. Possible connection between solar activity and local seismicity. Terr Atmos Ocean Sci 34, 9 (2023). https://doi.org/10.1007/s44195-023-00042-6

Sorokin VM, Yaschenko AK, Novikov AV (2019) A possible mechanism of stimulation of seismic activity by ionizing radiation of solar flares. Earthq Sci 32:26–34

Baker WG and Martyn DF (1953) Electric currents in the ionosphere I. The Conductivity. Philosophical Transactions of the Royal Society A: Mathematical, Physical and Engineering Sciences 246(913): 281–294




DOI: https://doi.org/10.37591/rrjosst.v12i2.3824

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