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- Title
Persistent multi-decadal Greenland temperature fluctuation through the last millennium.
- Authors
Kobashi, Takuro; Severinghaus, Jeffrey P.; Barnola, Jean-Marc; Kawamura, Kenji; Carter, Tara; Nakaegawa, Tosiyuki
- Abstract
Future Greenland temperature evolution will affect melting of the ice sheet and associated global sea-level change. Therefore, understanding Greenland temperature variability and its relation to global trends is critical. Here, we reconstruct the last 1,000 years of central Greenland surface temperature from isotopes of N2 and Ar in air bubbles in an ice core. This technique provides constraints on decadal to centennial temperature fluctuations. We found that northern hemisphere temperature and Greenland temperature changed synchronously at periods of ~20 years and 40–100 years. This quasi-periodic multi-decadal temperature fluctuation persisted throughout the last millennium, and is likely to continue into the future.
- Subjects
GREENLAND; PHYSIOLOGICAL effects of temperature; CLIMATE change; PHYSIOLOGICAL effects of atmospheric temperature; GLACIOLOGY
- Publication
Climatic Change, 2010, Vol 100, Issue 3/4, p733
- ISSN
0165-0009
- Publication type
Article
- DOI
10.1007/s10584-009-9689-9