Century-scale solar variability and Alaskan temperature change over the past millennium
Article first published online: 7 AUG 2004
Copyright 2004 by the American Geophysical Union.
Geophysical Research Letters
Volume 31, Issue 15, August 2004
How to Cite
2004), Century-scale solar variability and Alaskan temperature change over the past millennium, Geophys. Res. Lett., 31, L15203, doi:10.1029/2004GL020050., , , , and (
- Issue published online: 7 AUG 2004
- Article first published online: 7 AUG 2004
- Manuscript Accepted: 2 JUL 2004
- Manuscript Revised: 27 MAY 2004
- Manuscript Received: 22 MAR 2004
 Correlation of geologic histories from 130 Alaskan glaciers with a record of solar variation suggests that multi-decadal to century-scale temperature variations in the North Pacific and Arctic sectors have been influenced by solar forcing over the past thousand years. Mountain glacier fluctuations are primarily a record of summer cooling and the composite glacial history from three climatic regions across Alaska shows ice expansions approximately every 200 years, compatible with a solar mode of variability. The modulating effects of the cold phases of the Pacific Decadal Oscillation and the Arctic Oscillation may, when in phase with decreased solar activity, serve to amplify cooling, forcing glacier advance.