Interdecadal variation in the extent of South Pacific tropical waters during the Younger Dryas event
Article Abstract:
About 12,000 years ago, during the Younger Dryas event, the Northern Hemisphere cooled between 2 and 10 degree Celsius whereas East Antarctica experienced warming. High resolution analyses of skeletal Sr/Ca and 18O /16O ratios for a giant fossil Diploastrea helipora coral that was preserved in growth position on the raised reef terraces of Espiritu Santo Island, Vanautu, in the southwestern tropical Pacific Ocean is presented.
Publication Name: Nature
Subject: Zoology and wildlife conservation
ISSN: 0028-0836
Year: 2004
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Abrupt changes in early Holocene tropical sea surface temperature derived from coral records
Article Abstract:
Sr/Ca ratios in coral skeletons are used to determine early Holocene sea surface temperatures from a coral drill core recovered from Espiritu Santo, Vanuatu, in the Pacific Ocean. Data indicate that temperatures in the area were depressed by as much as 6.5 degrees celsius below current values. An abrupt temperature increase that lags the post-Younger Dryas may provide insights on the mechanisms of deglacial climate change.
Publication Name: Nature
Subject: Zoology and wildlife conservation
ISSN: 0028-0836
Year: 1997
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Seasonal characteristics of the Indian Ocean dipole during the Holocene epoch
Article Abstract:
The coral geochemical records from the equatorial eastern Indian Oceans were used to reconstruct surface-ocean cooling and drought during individual IOD events over the past ~6,500 years. The findings reveal that IOD events during the middle Holocene were characterized by a longer duration of strong Surface Ocean cooling together with droughts that peaked later than those expected by El Nino forcing alone.
Publication Name: Nature
Subject: Zoology and wildlife conservation
ISSN: 0028-0836
Year: 2007
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