Results 191 to 200 of about 3,439,333 (263)
Combined Surface Flux Transport and Helioseismic Far-Side Active Region Model (FARM). [PDF]
Sol PhysYang D +3 more
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Monitoring the daily variation of Sun-Earth magnetic fields using galactic cosmic rays. [PDF]
Innovation (Camb)LHAASO Collaborationnanyc@ihep.ac.cnchensz@ihep.ac.cnfengcf@sdu.edu.cn.
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Exploring the relationship between space weather conditions and power performance of EgyptSat-1 using machine learning. [PDF]
Sci RepElfiky D +5 more
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Sunspot cycle prediction using Warped Gaussian process regression
Advances in Space Research, 2020Solar cycle prediction is a key activity in space weather research. Several techniques have been employed in recent decades in order to try to forecast the next sunspot-cycle maxima and time.
Ítalo Gomes Gonçalves +2 more
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The unusual minimum of sunspot cycle 23 caused by meridional plasma flow variations
Nature, 2011Direct observations over the past four centuries show that the number of sunspots observed on the Sun’s surface varies periodically, going through successive maxima and minima.
D. Nandy +2 more
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Nature, 1986
Fossil records of presumed solar activity1,2 in 680-Myr-old varves reveal two periods, ∼314 and 350 varve years respectively, which also appear in recent sunspot records. These periodicities, combined with a nonlinear feature of sunspot number and a theory of the asymmetry of the solar cycle, enable the sunspot record to be extrapolated back to 1800 so
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Fossil records of presumed solar activity1,2 in 680-Myr-old varves reveal two periods, ∼314 and 350 varve years respectively, which also appear in recent sunspot records. These periodicities, combined with a nonlinear feature of sunspot number and a theory of the asymmetry of the solar cycle, enable the sunspot record to be extrapolated back to 1800 so
openaire +3 more sources
Journal of the Royal Statistical Society. Series A (General), 1977
SUMMARY The problem of forecasting the development of the well-known sunspot cycle of approximately 11 years from observations made early in the cycle is considered. Each cycle is described by a member of a family of curves with different parameters for each cycle.
M. J. Morris
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SUMMARY The problem of forecasting the development of the well-known sunspot cycle of approximately 11 years from observations made early in the cycle is considered. Each cycle is described by a member of a family of curves with different parameters for each cycle.
M. J. Morris
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The Review of Economic Studies, 1986
Because sunspot equilibria seem to be of central importance for an understanding of rational expectations, we seek here to characterize completely a limited class of sunspot equilibria (stationary ones with two possible natural events) in the simplest overlapping generations model of production.
Azariadis, Costas, Guesnerie, Roger
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Because sunspot equilibria seem to be of central importance for an understanding of rational expectations, we seek here to characterize completely a limited class of sunspot equilibria (stationary ones with two possible natural events) in the simplest overlapping generations model of production.
Azariadis, Costas, Guesnerie, Roger
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Long term periodicities in the sunspot cycle
Nature, 1974T. J. Cohen, P. Lintz
semanticscholar +3 more sources