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A history of solar activity over millennia
Living Reviews in Solar Physics, 2023 Here we review present knowledge of the long-term behaviour of solar activity on a multi-millennial timescale, as reconstructed using the indirect proxy method.
I G Usoskin
exaly +2 more sources
Relationships Between foF2 and Various Solar Activity Proxies
Space Weather, 2023 To study ionospheric climate, to model the ionosphere (e.g., the International Reference Ionosphere—IRI) and to investigate its long‐term changes and trends, solar activity proxies/indices have been used, because long and homogeneous data series of solar
Jan Lastovicka, Dalia Burešová
exaly +2 more sources
The Behaviour of Galactic Cosmic-Ray Intensity During Solar Activity Cycle 24. [PDF]
Sol Phys, 2019 We have studied long-term variations of galactic cosmic-ray (GCR) intensity in relation to the sunspot number (SSN) during the most recent solar cycles.
Ross E, Chaplin WJ.
europepmc +3 more sources
Long-term Solar Activity Studies using Microwave Imaging Observations and Prediction for Cycle 25. [PDF]
J Atmos Sol Terr Phys, 2018 We use microwave imaging observations from the Nobeyama Radioheliograph at 17 GHz for long-term studies of solar activity. In particular, we use the polar and low-latitude brightness temperatures as proxies to the polar magnetic field and the active ...
Gopalswamy N +3 more
europepmc +3 more sources