Open AccessGeomagnetic field mapping
Author(s) -
Jan Juřica
Publication year - 2020
Publication title -
journal of the asb society
Language(s) - English
Resource type - Journals
ISSN - 2695-1010
DOI - 10.51337/jasb20201228003
Subject(s) - earth's magnetic field , south atlantic anomaly , ionospheric dynamo region , geophysics , geomagnetic pole , geology , geomagnetic secular variation , equator , geodesy , satellite , ring current , magnetic field , field (mathematics) , geomagnetic storm , latitude , physics , van allen radiation belt , magnetosphere , astronomy , mathematics , quantum mechanics , pure mathematics
This work focuses on creating maps of the geomagnetic field and areas of increased cosmic radiation surrounding the Earth. Data were measured by Proba-V satellite at Low-Earth orbit 820 kilometres above the Earth during 2015. The actual measured data were compared with the calculated magnetic values. The created maps serve to a better understanding of the shape of the geomagnetic field and show magnetic equator, north magnetic pole and more. The map confirms that the area of the South Atlantic Anomaly corresponds with the weakest area of the geomagnetic field. Maps of different time periods of 2015 show small changes in the shape of the geomagnetic field during a year. Increased attention was paid to June 2015, when solar flares were passing near the Earth. The observation confirms that solar flares have a significant effect on the shape of the geomagnetic field.