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    Article

    Solar Radiation Change and Climatic Effects on Decennial–Centennial Scales

    The causes of climatic effects associated with a change in orbital parameters at decennial–centennial scales are still being debated in the scientific community. The regularities governing weak changes in sola...

    V. A. Dergachev, D. M. Volobuev in Geomagnetism and Aeronomy (2018)

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    Problems in Forecasting of the Decennial Solar Activity in Terms of TSI by the Method of Analogs

    Reconstruction and forecasting the data series of total solar irradiation (TSI) is one of the most urgent scientific problems at the moment. In this paper, we review three reconstructions of TSI based on the d...

    A. A. Skakun, D. M. Volobuev, A. V. Mordvinov in Geomagnetism and Aeronomy (2018)

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    Article

    Long-term Changes in Total Solar Irradiance and Their Predictions

    The Total Solar Irradiance (TSI) index of solar activity attracts the attention of a wide scientific audience due to its direct influence on the Earth’s climate. A number of reconstructions of inter-decadal TS...

    A. V. Mordvinov, A. A. Skakun, D. M. Volobuev in Geomagnetism and Aeronomy (2018)

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    Contribution of the Solar Constant Variations to Calculations of Insolation for the Holocene Period

    Insolation is one of the most important factors that affect the changes in the global climate and weather. Therefore, its accurate calculation is a relevant question of modern climatology. In this study, we pr...

    A. A. Skakun, D. M. Volobuev in Geomagnetism and Aeronomy (2017)

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    Article

    Long-Term Pulses of Dynamic Coupling Between Solar Hemispheres

    The north–south (N–S) asymmetry of solar activity is a known statistical phenomenon, but its significance is difficult to prove or to explain theoretically. Here we consider each solar hemisphere as a separate...

    D. M. Volobuev, N. G. Makarenko in Solar Physics (2017)

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    Article

    Evolution of the Bochner Laplacian for magnetograms of solar active regions

    A search for powerful flare predictors remains a problem of current interest in solar—terrestrial physics. The magnetograms (LOS SDO/HMI instrument) for active regions (ARs) 1158, 1166, 1283, and 1520, which p...

    D. M. Volobuev, N. G. Makarenko, I. S. Knyazeva in Geomagnetism and Aeronomy (2016)

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    Article

    Radiocarbon version of 11-year variations in the interplanetary magnetic field since 1250

    It is known that the interplanetary magnetic field (IMF), which is controlled by solar activity, modulates the flux of galactic cosmic rays (GCRs). Because GCRs are the only source of the 14C isotope in the atmos...

    D. M. Volobuev, N. G. Makarenko in Geomagnetism and Aeronomy (2015)

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    Central antarctic climate response to the solar cycle

    Antarctic “Vostok” station works most closely to the center of the ice cap among permanent year-around stations. Climate conditions are exclusively stable: low precipitation level, cloudiness and wind velocity...

    D. M. Volobuev in Climate Dynamics (2014)

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    Article

    The Maunder minimum: North-south asymmetry in sunspot formation, mean sunspot latitudes, and the butterfly diagram

    An approach to reconstructing solar activity in the past is used to study its time evolution. It is already possible to reconstruct not only the general level of solar activity on long timescales, but also par...

    Yu. A. Nagovitsyn, V. G. Ivanov, E. V. Miletsky, E. Yu. Nagovitsyna in Astronomy Reports (2010)

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    Article

    Global solar activity on long time scales

    We report the results of the application of our approach to study the behavior of solar activity in the past, where:

  11. When reconstructing the variations of solar activity, g...

  12. Yu. A. Nagovitsyn in Astrophysical Bulletin (2008)

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    Article

    Solar cycles during the Maunder minimum

    We have obtained new consistent versions of the 400-yr time series of the Wolf sunspot number W, the sunspot group number G, and the total sunspot area S (or the total sunspot magnetic flux Φ). We show that the 1...

    Yu. A. Nagovitsyn in Astronomy Letters (2007)

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    Article

    Solar and geomagnetic activity on a long time scale: Reconstructions and possibilities for predictions

    Using two mathematical methods based on the wavelet transform and nonlinear dynamics, we reconstructed the behavior of the aa-index of geomagnetic activity in the past. Two versions of the series are provided: fo...

    Yu. A. Nagovitsyn in Astronomy Letters (2006)

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    Article

    To the description of long-term variations in the solar magnetic flux: The sunspot area index

    We show that the Wolf sunspot numbers W and the group sunspot numbers GSN are physically different indices of solar activity and that it is improper to compare them. Based on the approach of the so-called “primar...

    Yu. A. Nagovitsyn in Astronomy Letters (2005)