500-Year Climate Cycles Stacking of Recent Centennial Warming (East Asian Pollen Record)
First published: 2014
Brief summary
Sediment pollen and varve record from East Asia reveals a ~500-year climate cycle nearly in phase with solar activity and Greenland temperature, with a further ~250-year cool-phase component.
Article
500-Year Climate Cycles Stacking of Recent Centennial Warming (East Asian Pollen Record) is a peer-reviewed journal article published by Scientific Reports (Nature) in 2014. It focuses on sediment pollen and varve record from East Asia reveals a ~500-year climate cycle nearly in phase with solar activity and Greenland temperature, with a further ~250-year cool-phase component.
The analysis focuses on ~500 years and ~250 years. The data source is varved lake sediment core, dated via 137Cs/210Pb radionuclide measurement. This gives the cycle claim a specific numerical and evidential setting rather than presenting periodicity only as a visual impression.
The article reports the following result: A ~500-year periodic change was almost in phase with solar activity and Greenland temperature change. This periodic climate change may reduce the man-made warming trend in the next two centuries in East Asia. The interpretation is strongest when it survives proxy uncertainty, model choice, dating error and comparison with established solar, orbital and ocean-atmosphere forcing.
For cycles researchers, the article brings together 500-year climate cycle, pollen records, solar activity, east asian climate. It is relevant to climate-cycle research because observed periodicities may arise from orbital forcing, solar variability, ocean-atmosphere dynamics or internal stochastic behaviour.
Because it is a peer-reviewed journal article, the article is a strong starting point for discussion in the Climate & Weather forum, although its conclusions should still be compared with later replications and updated datasets.
Source details and credits
- Source / publisher: Scientific Reports (Nature)
- Source type: Peer-reviewed journal article
- URL type: WWW
- Credits: Scientific Reports (Nature)
- URL: https://www.nature.com/articles/srep03611