Spremembe v gostoti energije magnetnega polja Zemlje na observatoriju PIA, Slovenija, med geomagnetno nevihto G5 11. maja 2024

Changes in the energy density of the Earth's magnetic field at the PIA, Slovenia, observatory during the G5 Geomagnetic Storm on May 11, 2024

Author(s):

Rudi Čop

Abstract:

Geomagnetic storms are the largest disturbance in the Earth's magnetic field. On May 11, 2024, a geomagnetic storm occurred at the peak of the 25th solar cycle, reaching the highest level (G5) on the planetary scale. On that day, a geomagnetic storm was also measured at the PIA geomagnetic observatory (Piran, Slovenia), reaching the maximum possible value of the geomagnetic index K = 9. Such strong geomagnetic storms occur on average every 40 to 60 years. A geomagnetic storm with an index of K = 9 represents an important reference for all disturbances in the local magnetic field from different sources and different intensities. Therefore, an analysis of accelerations in the energy density of the local magnetic field during the first 150 days in 2024 was made. The identified effects of geomagnetic storms with different K indices will serve to better analyse disturbances in the local magnetic field that have occurred in the past years and will happen in the future.

Keywords:

solar cycles, severe geomagnetic storm, energy density in the local magnetic field, accelerations in the energy density, geomagnetic indices

DOI: 10.15292/geodetski-vestnik.2024.03.360-369

Citation:

Rudi Čop (2024). Spremembe v gostoti energije magnetnega polja Zemlje na observatoriju PIA, Slovenija, med geomagnetno nevihto G5 11. maja 2024. | Changes in the energy density of the Earth's magnetic field at the PIA, Slovenia, observatory during the G5 Geomagnetic Storm on May 11, 2024. Geodetski vestnik, 68 (3), 360-369. DOI: 10.15292/geodetski-vestnik.2024.03.360-369