Mathematics – Logic
Scientific paper
Apr 2003
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2003georl..30g..10w&link_type=abstract
Geophysical Research Letters, Volume 30, Issue 7, pp. 10-1, CiteID 1358, DOI 10.1029/2002GL015868
Mathematics
Logic
7
Global Change: Climate Dynamics (3309), Oceanography: Biological And Chemical: Stable Isotopes, Oceanography: Physical: El Nino, Information Related To Geographic Region: Pacific Ocean
Scientific paper
Oxygen isotope ratios in Porites microatolls from Christmas Island in the central Pacific provide high-resolution proxy records of El Niño-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.
Beech Matthew R.
Gagan Michael K.
Woodroffe Colin D.
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