Models for the long-term variations of solar activity

BB Karak - Living Reviews in Solar Physics, 2023 - Springer
One obvious feature of the solar cycle is its variation from one cycle to another. In this article,
we review the dynamo models for the long-term variations of the solar cycle. By long-term …

Long-term modulation of solar cycles

A Biswas, BB Karak, I Usoskin, E Weisshaar - Space Science Reviews, 2023 - Springer
Solar activity has a cyclic nature with the≈ 11-year Schwabe cycle dominating its variability
on the interannual timescale. However, solar cycles are significantly modulated in length …

Solar dynamo theory

P Charbonneau - Annual Review of Astronomy and …, 2014 - annualreviews.org
The Sun's magnetic field is the engine and energy source driving all phenomena collectively
defining solar activity, which in turn structures the whole heliosphere and significantly …

Dynamo models of the solar cycle

P Charbonneau - Living Reviews in Solar Physics, 2020 - Springer
This paper reviews recent advances and current debates in modeling the solar cycle as a
hydromagnetic dynamo process. Emphasis is placed on (relatively) simple dynamo models …

Mean field models of flux transport dynamo and meridional circulation in the Sun and stars

G Hazra, D Nandy, L Kitchatinov, AR Choudhuri - Space Science Reviews, 2023 - Springer
The most widely accepted model of the solar cycle is the flux transport dynamo model. This
model evolved out of the traditional α Ω dynamo model which was first developed at a time …

Solar cycle prediction

K Petrovay - Living Reviews in Solar Physics, 2020 - Springer
A review of solar cycle prediction methods and their performance is given, including early
forecasts for Cycle 25. The review focuses on those aspects of the solar cycle prediction …

Exploring the reliability of polar field rise rate as a precursor for an early prediction of solar cycle

A Biswas, BB Karak, P Kumar - Monthly Notices of the Royal …, 2023 - academic.oup.com
The prediction of the strength of an upcoming solar cycle has been a long-standing
challenge in the field of solar physics. The inherent stochastic nature of the underlying solar …

Predictability of the solar cycle over one cycle

J Jiang, JX Wang, QR Jiao, JB Cao - The Astrophysical Journal, 2018 - iopscience.iop.org
The prediction of the strength of future solar cycles is of interest because of its practical
significance for space weather and as a test of our theoretical understanding of the solar …

Physical link of the polar field buildup with the Waldmeier effect broadens the scope of early solar cycle prediction: Cycle 25 is likely to be slightly stronger than Cycle …

P Kumar, A Biswas, BB Karak - Monthly Notices of the Royal …, 2022 - academic.oup.com
Prediction of the solar cycle is challenging but essential because it drives space weather.
Several predictions with varying amplitudes of the ongoing Cycle 25 have been made. We …

Solar cycle variability induced by tilt angle scatter in a Babcock–Leighton solar dynamo model

BB Karak, M Miesch - The Astrophysical Journal, 2017 - iopscience.iop.org
We present results from a three-dimensional Babcock–Leighton (BL) dynamo model that is
sustained by the emergence and dispersal of bipolar magnetic regions (BMRs). On average …