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The Solar Cycle [PDF]

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   +8 more sources

The Solar Cycle [PDF]

open access: yesAdvances in Astronomy, 2012
The ~11-year solar cycle was first identified in the fluctuation of the number and location of sunspots and, soon after, their magnetic polarity and the dipole component of the Sun’s magnetism as a whole. The cycle is manifested in satellite records of total and variable solar luminosity, in the open solar magnetic flux, which can be estimated from ...
J. Javaraiah   +2 more
doaj   +3 more sources

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   +7 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

Solar cycle-related variation in solar differential rotation and meridional flow in solar cycle 24 [PDF]

open access: yesEarth, Planets and Space, 2020
We studied temporal variation of the differential rotation and poleward meridional circulation during solar cycle 24 using the magnetic element feature tracking technique.
Shinsuke Imada   +3 more
doaj   +2 more sources

Observation-based Iterative Map for Solar Cycles. I. Nature of Solar Cycle Variability

open access: yesThe Astrophysical Journal
Intercycle variations in the series of 11 yr solar activity cycles have a significant impact on both the space environment and climate. Whether solar cycle variability is dominated by deterministic chaos or stochastic perturbations remains an open ...
Zi-Fan Wang, Jie Jiang, Jing-Xiu Wang
doaj   +3 more sources

Solar Cycle Forecasting

open access: hybrid, 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.
A. Hanslmeier
openalex   +2 more sources

Solar Cycle [PDF]

open access: yes, 2020
The Sun’s magnetic field drives the solar wind and produces space weather. It also acts as the prototype for an understanding of other stars and their planetary environments. Plasma motions in the solar interior provide the dynamo action that generates the solar magnetic field.
van Driel-Gesztelyi, Lidia   +1 more
openaire   +2 more sources

A solar energy desalination analysis tool, sedat, with data and models for selecting technologies and regions

open access: yesScientific Data, 2022
There is interest for desalination technologies powered by solar energy as arid areas are typically bestowed with good solar potential. In response to a US DOE call for solar desalination analysis tools, we developed an open-source solar energy ...
Vasilis Fthenakis   +8 more
doaj   +1 more source

SOLAR CYCLE 25: ANOTHER MODERATE CYCLE? [PDF]

open access: yesThe Astrophysical Journal Letters, 2016
ABSTRACT Surface flux transport simulations for the descending phase of Cycle 24 using random sources (emerging bipolar magnetic regions) with empirically determined scatter of their properties provide a prediction of the axial dipole moment during the upcoming activity minimum together with a realistic uncertainty range. The expectation
R. H. Cameron, J. Jiang, M. Schüssler
openaire   +3 more sources

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