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Space Science Reviews, 2008
Predicting the behavior of a solar cycle after it is well underway (2–3 years after minimum) can be done with a fair degree of skill using auto-regression and curve fitting techniques that don’t require any knowledge of the physics involved. Predicting the amplitude of a solar cycle near, or before, the time of solar cycle minimum can be done using ...
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Predicting the behavior of a solar cycle after it is well underway (2–3 years after minimum) can be done with a fair degree of skill using auto-regression and curve fitting techniques that don’t require any knowledge of the physics involved. Predicting the amplitude of a solar cycle near, or before, the time of solar cycle minimum can be done using ...
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2020
In this chapter we discuss several methods for forecasting solar activity on different time scales. The solar radiation and particle emission influences on the space around Earth, the Earth’s magnetosphere, the Earth’s atmosphere, and can be harmful for satellites and manned spacecraft missions and disrupt communication systems.
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In this chapter we discuss several methods for forecasting solar activity on different time scales. The solar radiation and particle emission influences on the space around Earth, the Earth’s magnetosphere, the Earth’s atmosphere, and can be harmful for satellites and manned spacecraft missions and disrupt communication systems.
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Solar Physics, 1981
The properties of kinematic αω -dynamos are briefly reviewed. The mean field concept, including turbulent diffusivity, is defended against recent criticism. It is pointed out that although the Maunder minimum cannot be explained by kinematic dynamo theory alone, this does not invalidate dynamo theory in general.
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The properties of kinematic αω -dynamos are briefly reviewed. The mean field concept, including turbulent diffusivity, is defended against recent criticism. It is pointed out that although the Maunder minimum cannot be explained by kinematic dynamo theory alone, this does not invalidate dynamo theory in general.
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Solar activity and the solar cycle
Advances in Space Research, 2003Abstract Solar activity prediction methods have been wide-ranging, mostly numerical, and essentially curve fitting. Thus for many years the search for physically based methods has remained elusive. Surprisingly, a new class of methods does seem to be making progress, and it relates to the structure of the field within the Sun and heliosphere.
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1995
Abstract : Work focussed on describing the solar activity cycle's clock as a torsional oscillator, and describing the origin of the 5 minute oscillations, which are used as a seismic probe. It has been discovered that the sun's rotation does not vary near the base of the convection zone but may vary deeper down.
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Abstract : Work focussed on describing the solar activity cycle's clock as a torsional oscillator, and describing the origin of the 5 minute oscillations, which are used as a seismic probe. It has been discovered that the sun's rotation does not vary near the base of the convection zone but may vary deeper down.
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Missing solar cycle hypothesis and basic statistical regularities of solar cycles
Geomagnetism and Aeronomy, 2012The basic statistical properties of solar cycles, including the Gnevyshev-Ol’ rule, the Waldmeier effect, and the amplitude-period effect, are tested using data on the number of sunspot groups for 1700–1996, considering the hypothesis about a missing solar cycle in the late 18th century. The results show that the division of the long cycle of 1784–1800
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