Radiative forcing over an '11-year' solar cycle is thought to be in phase with related influences on climate, but recent satellite data reveal a surprising spectral component in solar variability. These authors show that these spectral variations lead to decreases in ozone below 45 km and increases above. As a consequence, radiative forcing of surface climate is out of phase with solar activity, suggesting that a major revision of our current understanding of solar forcing of climate may be required.
- Joanna D. Haigh
- Ann R. Winning
- Jerald W. Harder