Results 21 to 30 of about 4,486,622 (282)

Solar cycle 25 prediction using length-to-amplitude relations [PDF]

open access: yes, 2022
We propose a simple method for prediction of the 11-year solar cycle maximum that is based on two relations. One of them is well known Waldmeier's rule that binds the amplitude of a cycle and the length of its ascending phase. The second rule relates the
Ivanov, Vladimir G.
core   +1 more source

A Deep Learning Model Based on Multi-Head Attention for Long-Term Forecasting of Solar Activity

open access: yesEngineering Proceedings, 2023
The accurate long-term forecasting of solar activity is crucial in the current era of space explorations and in the study of planetary climate evolution.
Adriana Marcucci   +3 more
doaj   +1 more source

Prediction of solar activity on the basis of spectral characteristics of sunspot number [PDF]

open access: yesAnnales Geophysicae, 2004
Prediction of solar activity strength for solar cycles 23 and 24 is performed on the basis of extrapolation of sunspot number spectral components. Sunspot number data during 1933-1996 periods (solar cycles 17-22) are searched for periodicities by ...
E. Echer   +4 more
doaj   +1 more source

Complex Network Study of Solar Magnetograms

open access: yesEntropy, 2022
In this paper, we study solar magnetic activity by means of a complex network approach. A complex network was built based on information on the space and time evolution of sunspots provided by image recognition algorithms on solar magnetograms taken ...
Víctor Muñoz, Eduardo Flández
doaj   +1 more source

Heartbeat of the sun from principal component analysis and prediction of solar activity on a millenium timescale [PDF]

open access: yes, 2015
We derive two principal components (PCs) of temporal magnetic field variations over the solar cycles 21-24 from full disk magnetograms covering about 39% of data variance, with σ = 0.67. These PCs are attributed to two main magnetic waves travelling from
Shepherd, Simon J.   +10 more
core   +1 more source

Prediction of solar cycle 24

open access: yes2015 International Joint Conference on Neural Networks (IJCNN), 2015
Accurate prediction of solar activity as one aspect of space weather phenomena is essential to decrease the damage from these activities on the ground based communication, power grids, etc. Recently, the connectionist models of the brain such as neural networks and neuro-fuzzy methods have been proposed to forecast space weather phenomena; however ...
Mahboobeh Parsapoor   +2 more
openaire   +2 more sources

Predictability of the Solar Cycle Over One Cycle

open access: yesThe Astrophysical Journal, 2018
Abstract 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 cycle. The Babcock–Leighton mechanism allows predictions by assimilating the observed magnetic field on the surface.
Jie Jiang   +3 more
openaire   +2 more sources

Are solar cycles predictable? [PDF]

open access: yesAstronomische Nachrichten, 2007
AbstractVarious methods (or recipes) have been proposed to predict future solar activity levels – with mixed success. Among these, some precursor methods based upon quantities determined around or a few years before solar minimum have provided rather high correlations with the strength of the following cycles.
openaire   +3 more sources

Physical link of the polar field build-up with the Waldmeier effect broadens the scope of early solar cycle prediction: Cycle 25 is likely to be slightly stronger than Cycle 24 [PDF]

open access: yes, 2022
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.
Karak, Bidya Binay   +5 more
core   +1 more source

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