Possible risk resulting from the recent decay of the dipolar component of the terrestrial magnetic feld

• Autorzy: Bury Agata , Lewandowski Marek , Mizerski Krzysztof

Identyfikatory

DOI

10.1007/s11600-021-00536-2

• Języki publikacji: EN

Abstrakty

EN

In this study, we investigated the geomagnetic ground observatory data from 1980 to 2011 collected from World Data Center from 134 stations. To analyze the data we have applied spherical harmonic decomposition to obtain components associated with the Earth’s main magnetic feld and to calculate how the Earth’s dipole was varying in the aforementioned recent 31-year period. There is a visible ~2.3% decay of the dipole magnetic feld of the Earth. We note that the present-day value of the magnetic dipole intensity is the lowest one in the history of modern civilization and that further drop of this value may pose a risk for diferent domains of our life.

Słowa kluczowe

EN

geomagnetic observatory; geomagnetic field; Earth’s dipole; Earth’s main magnetic field; Earth’s dipole variations

PL

obserwatorium geomagnetyczne; pole geomagnetyczne; dipol Ziemi; główne pole magnetyczne Ziemi; zmienność dipola Ziemi

• Wydawca: Instytut Geofizyki PAN ; Springer
• Czasopismo: Acta Geophysica
• Rocznik: 2021
• Tom: Vol. 69, no. 1
• Strony: 47--52
• Opis fizyczny: Bibliogr. 21 poz.

Twórcy

autor

Bury Agata

• Institute of Geophysics Polish Academy of Sciences, 64 Księcia Janusza Str., 01-452 Warsaw, Poland

• https://orcid.org/0000-0001-8168-0906

autor

Lewandowski Marek

• Institute of Geophysics Polish Academy of Sciences, 64 Księcia Janusza Str., 01-452 Warsaw, Poland

• https://orcid.org/0000-0003-1504-3735

autor

Mizerski Krzysztof

• Institute of Geophysics Polish Academy of Sciences, 64 Księcia Janusza Str., 01-452 Warsaw, Poland

• https://orcid.org/0000-0003-0106-675X

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