The 11-year solar cycle continues during prolonged sunspot minima
Article first published online: 14 DEC 2012
©2012. American Geophysical Union. All Rights Reserved.
Eos, Transactions American Geophysical Union
Volume 93, Issue 51, page 544, 18 December 2012
How to Cite
2012), The 11-year solar cycle continues during prolonged sunspot minima, Eos Trans. AGU, 93(51), 544., (
- Issue published online: 14 DEC 2012
- Article first published online: 14 DEC 2012
- Cited By
- Maunder Minimum;
- heliospheric magnetic field;
- solar variability;
- sunspot number
Streaming into the solar system at nearly the speed of light, galactic cosmic rays (GCRs) are a high-energy mix of protons, electrons, and atomic nuclei. As they pass into reach of the outflowing solar wind, the propagation of GCRs is inhibited. Galactic cosmic rays that make it to Earth interact with the atmosphere, creating a shower of heavy isotopes including beryllium-10. Beryllium-10 isotope concentrations recorded in ice cores provide a long-term, high temporal resolution record of galactic cosmic ray flux.