Millennial-scale dynamics of the east Asian winter monsoon during the last 200,000 years
作者： Thibault de Garidel-Thoron , Luc Beaufort , Braddock K. Linsley , Stefanie Dannenmann
DOI: 10.1029/2000PA000557
关键词: Teleconnection 、 East Asian Monsoon 、 Geology 、 Oceanography 、 Northern Hemisphere 、 Holocene 、 Forcing (mathematics) 、 Coccolithophore 、 Loess 、 Climatology 、 Glacial period
摘要: The primary productivity dynamics of the last 200,000 years in Sulu Sea was reconstructed using abundance coccolithophore Florisphaera profunda IMAGES MD97-2141 core. We find that enhanced during glacial periods, which we suggest is due to a stronger East Asian winter monsoon. During 80 kyr, eight significant increases (PP) are similar monsoon changes recorded Chinese loess. PP maxima not linked with Heinrich events (HE) North Atlantic, although four peaks synchronous HE. oscillations have frequencies near those Dansgaard-Oeschger cycles Northern Hemisphere ice records and indicate teleconnection Greenland climate. In this record oscillates periodicities of6, 4.2-3.4, 2.3, 1.5 kyr. particular, kyr cycle exhibits strong pervasive signal from stage 6 Holocene without any volume modulation. This stationarity suggests driven by some high-latitude forcing.
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