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Space Climate 10

8–12 Jun 2026
Europe/Mariehamn timezone

Session

1.1 Dynamo (chair Kalevi Mursula)

9 Jun 2026, 10:30
Alandica Culture and Congress Center

Alandica Culture and Congress Center

STRANDGATAN 33

Conveners

1.1 Dynamo (chair Kalevi Mursula)

  • Paul Charbonneau (Université de Montréal, Montréal, Canada)

Presentation materials

There are no materials yet.

  1. 3. Solar Dynamo as the Driver of Space Climate
    Prof. Dibyendu Nandi (IISER, IN)
    09/06/2026, 10:30
    Invited review

    Decadal-scale and longer-term variations in space environmental conditions forces planetary systems such as the Earth. These variations in radiation, particle and magnetic flux, and occasion extreme events, have a profound influence on planets, including but not limited to atmospheric evolution, climate dynamics, and technological impacts. Studies from the Sun-Earth system indicate that the...

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  2. 4. Fluctuations in Babcock-Leighton dynamos: magnetic backreaction on differential rotation and long-term amplitude modulation
    Dr Alexandre Lemerle (Université de Montréal, CA)
    09/06/2026, 10:50
    Solicited

    The predominant magnetic backreaction channel through which the growth of solar/stellar dynamos is stabilized has not yet been identified with confidence. In this work, we investigate the dynamical feedback on differential rotation directly driven by the Lorentz force associated with the cycling large-scale magnetic field, in an otherwise kinematic dynamo model where the Babcock-Leighton...

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  3. 7. A qualitative model for the occurrence of grand minima based on superadiabaticity perturbations in the tachocline
    Prof. Antonio Ferriz-Mas (University of Vigo and IAA-CSIC, ES)
    09/06/2026, 11:10

    The study of cosmogenic radionuclides shows that an event of significantly reduced solar activity such as the Maunder Minimum (1645-1715) was not an exceptional event, but is a recurring phenomenon in the history of solar magnetic activity.
    Although various ideas have been proposed to try to explain why Grand Minima occur, there is no satisfactory model yet.
    Since the decade of 1980 many...

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  4. 8. Uncovering the small-scale footprint of the global solar dynamo
    Mr Michele Berretti (Rome Tor Vergata U., IT)
    09/06/2026, 11:22

    Small-scale magnetic elements are ubiquitous in the solar photosphere, covering significant portions of the Sun’s visible surface and organizing into the so-called magnetic network. Advected and jostled by the turbulent plasma in which they are embedded, these elements constitute an ideal proxy to study the superficial flows of the Sun’s convective envelope. Furthermore, they act as a prime...

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  5. 82. Historical Eclipse Reports as Spot References for Space Climatology Back to 709 BCE
    Prof. Hisashi Hayakawa (Nagoya U., JP)
    09/06/2026, 11:34

    Some of the participants might be preparing scientific measurements, experiments, or campaigns for the total solar eclipses this August or/and next August. We have good reason for such campaigns, as total solar eclipses have been not only astronomical spectacles but also astrophysical laboratories throughout human history. These astronomical spectacles serve as spot references for the...

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  6. 27. Magnetic Variability of Solar-Like Stars Extends Far Beyond the Solar Range
    Alexander Shapiro (University of Graz, AT)
    09/06/2026, 11:46

    We constructed a comprehensive sample of solar-like stars by combining Kepler, Gaia, and LAMOST data, selecting stars with near-solar fundamental parameters and measured rotation periods. The rotation periods were determined using a method specifically designed to recover signals from relatively old and weakly active stars.
    We find that the majority of solar-like stars exhibit photometric...

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