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(5100):1433-1436
Tree ring data have been used to reconstruct the mean late-season (June through January) temperature at a timerbine 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 periodicty 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. 1200-1900) 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
- annual variations, California, Cenozoic, Central California, Cirque Peak, Climate, cycles, Geochronology, Geology, Holocene, Inyo County California, modern, Paleoclimatology, paleotemperature, Quaternary, Sierra Nevada, solar activity, Temperature, Tree Rings, Tulare County California, Upper Holocene