Author Correction: Solar superstorm of AD 774 recorded subannually by Arctic tree rings

Arctic tree rings as recorders of variations in light availability

Annual growth ring variations in Arctic trees are often used to reconstruct surface temperature. In general, however, the growth of Arctic vegetation is limited both by temperature and light availability, suggesting that variations in atmospheric transmissivity may also influence tree-ring characteristics. Here we show that Arctic tree-ring density is sensitive to changes in light availability ...

Excursions in the 14C record at A.D. 774–775 in tree rings from Russia and America

The calibration of radiocarbon dates by means of a master calibration curve has been invaluable to Earth, environmental and archeological sciences, but the fundamental reason for calibration is that atmospheric radiocarbon content varies because of changes in upper atmosphere production and global carbon cycling. Improved instrumentation has contributed to high-resolution (interannual) radiocar...

Author Correction

“Phenotype of asthmatics with increased airway S-nitrosoglutathione reductase activity.” Nadzeya V. Marozkina, Xin-Qun Wang, Vitali Stsiapura, Anne Fitzpatrick, Silvia Carraro, Gregory A. Hawkins, Eugene Bleecker, Deborah Meyers, Nizar Jarjour, Sean B. Fain, Sally Wenzel, William Busse, Mario Castro, Reynold A. Panettieri Jr, Wendy Moore, Stephen J. Lewis, Lisa A. Palmer, Talissa Altes, Eduard ...

Multiradionuclide evidence for the solar origin of the cosmic-ray events of AD 774/5 and 993/4

Erratum: Author correction

[This corrects the article on p. 433 in vol. 60, PMID: 28989919.].