, Volume 224, Issue 1-2, pp 69-76

Reconstruction of Open Solar Magnetic Flux and Interplanetary Magnetic Field in the 20Th Century

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We reconstruct mean magnitudes of the open solar magnetic field since 1915 using α magnetic synoptic charts of the Sun. The obtained series allows estimation of the interplanetary magnetic field. They also confirm the known conclusion about the secular increase of the solar open magnetic flux in the first half of the 20th century.