Results 1 to 10 of about 10,876 (155)

Solar Cycle Prediction [PDF]

open access: yesLiving Reviews in Solar Physics, 2010
A review of solar cycle prediction methods and their performance is given, including forecasts for cycle 24. The review focuses on those aspects of the solar cycle prediction problem that have a bearing on dynamo theory.
Kristóf Petrovay
doaj   +11 more sources

Forecasting the number of sunspots for solar cycle 25 utilizing the facebook prophet model [PDF]

open access: yesScientific Reports
The solar cycle, also referred to as the solar magnetic activity cycle, represents a nearly periodic change in solar activity occurring approximately every 11 years, as evidenced by the observation of sunspot numbers.
H. I. Abdel Rahman, W. A. Badawy
doaj   +2 more sources

Towards an algebraic method of solar cycle prediction [PDF]

open access: yesJournal of Space Weather and Space Climate, 2020
An algebraic method for the reconstruction and potentially prediction of the solar dipole moment value at sunspot minimum (known to be a good predictor of the amplitude of the next solar cycle) was suggested in the first paper in this series.
Nagy Melinda   +3 more
doaj   +5 more sources

An Updated Solar Cycle 25 Prediction With AFT: The Modern Minimum

open access: yesGeophysical Research Letters, 2018
Over the last decade there has been mounting evidence that the strength of the Sun's polar magnetic fields during a solar cycle minimum is the best predictor of the amplitude of the next solar cycle.
Lisa A. Upton, David H. Hathaway
doaj   +2 more sources

The Solar Cycle

open access: yesLiving Reviews in Solar Physics, 2015
The solar cycle is reviewed. The 11-year cycle of solar activity is characterized by the rise and fall in the numbers and surface area of sunspots. A number of other solar activity indicators also vary in association with the sunspots including; the 10.7
David H. Hathaway
doaj   +3 more sources

SuryaBench: Benchmark Dataset for Advancing Machine Learning in Heliophysics and Space Weather Prediction [PDF]

open access: yesScientific Data
This paper introduces a high resolution, machine learning-ready heliophysics dataset derived from NASA’s Solar Dynamics Observatory (SDO), specifically designed to advance machine learning (ML) applications in solar physics and space weather forecasting.
Sujit Roy   +24 more
doaj   +2 more sources

Long-term variations in the north–south asymmetry of solar activity and solar cycle prediction, III: Prediction for the amplitude of solar cycle 25 [PDF]

open access: yesNew Astronomy, 2015
The combined Greenwich and Solar Optical Observing Network (SOON) sunspot group data during 1874-2013 are analyzed and studied the relatively long-term variations in the annual sums of the areas of sunspot groups in 0-10 deg, 10-20 deg, and 20-30 deg latitude intervals of the Sun's northern and southern hemispheres.
J Javaraiah
exaly   +3 more sources

On the Prediction of Solar Cycles [PDF]

open access: yesSolar Physics, 2021
AbstractThis article deals with the prediction of the upcoming solar activity cycle, Solar Cycle 25. We propose that astronomical ephemeris, specifically taken from the catalogs of aphelia of the four Jovian planets, could be drivers of variations in solar activity, represented by the series of sunspot numbers (SSN) from 1749 to 2020.
V. Courtillot, F. Lopes, J. L. Le Mouël
openaire   +2 more sources

Prediction of even and odd sunspot cycles

open access: yesJournal of Space Weather and Space Climate, 2023
Here we study the prediction of even and odd numbered sunspot cycles separately, thereby taking into account the Hale cyclicity of solar magnetism. We first show that the temporal evolution and shape of all sunspot cycles are extremely well-described by ...
Asikainen Timo, Mantere Jani
doaj   +1 more source

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