Millennial-scale trends in west Pacific warm pool hydrology since the Last Glacial Maximum

Judson W. Partin (), Kim M. Cobb, Jess F. Adkins, Brian Clark and Diego P. Fernandez
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Judson W. Partin: School of Earth and Atmospheric Sciences, Georgia Institute of Technology, Atlanta, Georgia 30332, USA
Kim M. Cobb: School of Earth and Atmospheric Sciences, Georgia Institute of Technology, Atlanta, Georgia 30332, USA
Jess F. Adkins: California Institute of Technology, Pasadena, California 91125, USA
Brian Clark: Gunung Mulu National Park
Diego P. Fernandez: California Institute of Technology, Pasadena, California 91125, USA

Nature, 2007, vol. 449, issue 7161, 452-455

Abstract: The warm pool's hot Atmospheric convection over the west Pacific warm pool — an area of warm water in the western tropical Pacific Ocean — is a major source of heat and moisture to extra-tropical regions, so this process may have played an important role in global climate change in the past. This role remained uncertain, because of a lack of well dated, high-resolution climate records from this region. Now we have the missing data, in the form of an oxygen isotope record from three cave stalagmites from northern Borneo, reflecting changes in tropical Pacific hydrology on millennial timescales over the past 27,000 years. The records indicate that the tropical Pacific hydrological cycle is sensitive to high-latitude climate processes in both the Northern and Southern Hemispheres, as well as to external radiative forcing, and that it may have played an important role in abrupt climate change events.

Date: 2007
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DOI: 10.1038/nature06164

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