We analyze the effect of a solar eclipse on the geomagnetic field by processing geomagnetic observation data during the solar eclipse from the first contact until the moon’s shadow leaves the Sun. During the eclipse, the moon blocks the radiation coming from the Sun, so the Earth receives less solar radiation. Then, the reduced radiation will affect the photoelectron process in the ionosphere and the magnetosphere. We conducted the geomagnetic observation in Biak during a total solar eclipse to determine its effect on the geomagnetic field. The total solar eclipse occurred on April 20, 2023. The coverage of the eclipse on Biak was 100%. We also compare the result in Biak with geomagnetic data obtained in Pontianak, which experienced a solar eclipse with only around 30% coverage. The results show that Biak’s geomagnetic X component (north-south) has good responses to the solar eclipse. Similarly, the geomagnetic X component in Pontianak also decreased during the solar eclipse, but the amplitude is smaller than in Biak. As for the magnetic Y component, the response is not significant.
Geomagnetic Field Effect Observed in Biak During the Solar Eclipse of April 20, 2023
Springer Proceedings Phys.
International Seminar on Aerospace Science and Technology ; 2024 ; Bali, Indonesia September 17, 2024 - September 17, 2024
Proceedings of the 10th International Seminar on Aerospace Science and Technology; ISAST 2024; 17 September, Bali, Indonesia ; Chapter : 27 ; 248-255
2025-02-15
8 pages
Article/Chapter (Book)
Electronic Resource
English
Geomagnetic Field , Solar Eclipse Physics , Space Sciences (including Extraterrestrial Physics, Space Exploration and Astronautics) , Aerospace Technology and Astronautics , Climate, general , Ecology , Astronomy, Astrophysics and Cosmology , Measurement Science and Instrumentation , Physics and Astronomy
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