500-year climate cycles stacking of recent centennial warming documented in an East Asian pollen record.
Sci Rep
; 4: 3611, 2014 Jan 09.
Article
in En
| MEDLINE
| ID: mdl-24402348
ABSTRACT
Here we presented a high-resolution 5350-year pollen record from a maar annually laminated lake in East Asia (EA). Pollen record reflected the dynamics of vertical vegetation zones and temperature change. Spectral analysis on pollen percentages/concentrations of Pinus and Quercus, and a temperature proxy, revealed ~500-year quasi-periodic cold-warm fluctuations during the past 5350 years. This ~500-year cyclic climate change occurred in EA during the mid-late Holocene and even the last 150 years dominated by anthropogenic forcing. It was almost in phase with a ~500-year periodic change in solar activity and Greenland temperature change, suggesting that ~500-year small variations in solar output played a prominent role in the mid-late Holocene climate dynamics in EA, linked to high latitude climate system. Its last warm phase might terminate in the next several decades to enter another ~250-year cool phase, and thus this future centennial cyclic temperature minimum could partially slow down man-made global warming.
Full text:
1
Collection:
01-internacional
Database:
MEDLINE
Main subject:
Pollen
/
Climate Change
/
Documentation
Country/Region as subject:
Asia
Language:
En
Journal:
Sci Rep
Year:
2014
Document type:
Article
Affiliation country: