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Detailed Reference Information |
Woodroffe, C.D., Beech, M.R. and Gagan, M.K. (2003). Mid-late Holocene El Niño variability in the equatorial Pacific from coral microatolls. Geophysical Research Letters 30: doi: 10.1029/2002GL015868. issn: 0094-8276. |
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Oxygen isotope ratios in Porites microatolls from Christmas Island in the central Pacific provide high-resolution proxy records of El Ni¿o-Southern Oscillation (ENSO) variability since 3.8 thousand years ago (ka). Compared with modern microatolls, reconstructions from fossil microatolls imply that interannual variations in ENSO sea-surface temperature and precipitation were less intense 3.8--2.8 ka, but more pronounced at 1.7 ka. Amplification of ENSO at ~2 ka is consistent with precessional changes in insolation seasonality, but exceeds model predictions and may reflect stronger rainfall teleconnections through enhanced interaction between the Southern Oscillation and the Pacific Intertropical Convergence Zone. |
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Abstract |
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Keywords
Global Change, Climate dynamics, Oceanography, Biological and Chemical, Stable isotopes, Oceanography, Physical, El Nino, Information Related to Geographic Region, Pacific Ocean |
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Publisher
American Geophysical Union 2000 Florida Avenue N.W. Washington, D.C. 20009-1277 USA 1-202-462-6900 1-202-328-0566 service@agu.org |
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