A 2000-Year Tree Ring Record of Annual Temperatures in the Sierra Nevada Mountains
Scuderi LA. 1993. A 2000-Year Tree Ring Record of Annual Temperatures in the Sierra Nevada Mountains. Science. 259(1433-1436):1433-1436
Tree ring data have been used to reconstruct the mean late-season (June through January) temperature at a timberline site in the Sierra Nevada, California, for each of the past 2000 years. Long-term trends in the temperature reconstruction are indicative of a 125-year periodicity that may be linked to solar activity as reflected in radiocarbon and auroral records. The results indicate that both the warm intervals during the Medieval Warm Epoch (∼A.D. 800 to 1200) and the cold intervals during the Little Ice Age (∼A.D. 1200 to 1900) are closely associated with the 125-year period. Significant changes in the phase of the 125-year temperature variation occur at the onset and termination of the most recent radiocarbon triplet and may indicate chaotic solar behavior
- Type
- Journal Article
- Authors
- Scuderi, Louis
- Units
- SEKI
- Keywords
- Air Temperature, Atmospheric Sciences, Climate, Climate Change, Dendrochronology, Sequoia and Kings Canyon National Parks CA