Physics
Scientific paper
Dec 2007
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2007georl..3423701w&link_type=abstract
Geophysical Research Letters, Volume 34, Issue 23, CiteID L23701
Physics
16
Global Change: Abrupt/Rapid Climate Change (4901, 8408), Paleoceanography: Interhemispheric Phasing, Paleoceanography: Speleothems, Atmospheric Processes: Ocean/Atmosphere Interactions (0312, 4504), Geochronology: Radioisotope Geochronology
Scientific paper
A U-Th dated 90,000 year-long speleothem oxygen isotope record from southern Brazil anti-correlates remarkably with the cave calcite records from eastern China, but positively correlates with the speleothem record from northeastern Brazil, suggesting an interhemispheric anti-phasing of rainfall on both millennial and orbital timescales, likely related to displacement in the mean position of the intertropical convergence zone and associated asymmetry in Hadley circulation. The phase relationships among these records are consistent with the hypothesis that abrupt climate events during the last glacial period are triggered by oceanic circulation changes in the high latitudes and enhanced by tropical feedbacks.
Auler Augusto S.
Cheng Hanqiang
Edwards Lee R.
Ito Emi
Kong Xinggong
No associations
LandOfFree
Millennial-scale precipitation changes in southern Brazil over the past 90,000 years does not yet have a rating. At this time, there are no reviews or comments for this scientific paper.
If you have personal experience with Millennial-scale precipitation changes in southern Brazil over the past 90,000 years, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Millennial-scale precipitation changes in southern Brazil over the past 90,000 years will most certainly appreciate the feedback.
Profile ID: LFWR-SCP-O-1758275