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RESEARCH PRODUCT
Monthly Bonaire coral Sr/Ca and oxygen isotope data from 118 kyr ago (coral BON-5-D)
Thomas FelisCyril GiryDenis ScholzGerrit LohmannMadlene PfeifferJürgen PätzoldMartin KöllingSander R Schefferssubject
CaribClim_Coral_2006Integrierte Analyse zwischeneiszeitlicher Klimadynamik INTERDYNAMIKDrilling/drill rigCalculated see reference(s)Drilling drill rigOptima 3300RPerkin ElmerIntegrierte Analyse zwischeneiszeitlicher Klimadynamik (INTERDYNAMIK)ICP OESMass spectrometer Finnigan MAT 251Diploria strigosaDiploria strigosa δ18OCalculatedEarth System ResearchCenter for Marine Environmental Sciences MARUMsee reference sICP-OES Perkin-Elmer Optima 3300RInternal coral chronologyδ18ODiploria strigosa Strontium/Calcium ratioStrontium Calcium ratioCenter for Marine Environmental Sciences (MARUM)description
The end of the last interglacial period, ~118 kyr ago, was characterized by substantial ocean circulation and climate perturbations resulting from instabilities of polar ice sheets. These perturbations are crucial for a better understanding of future climate change. The seasonal temperature changes of the tropical ocean, however, which play an important role in seasonal climate extremes such as hurricanes, floods and droughts at the present day, are not well known for this period that led into the last glacial. Here we present a monthly resolved snapshot of reconstructed sea surface temperature in the tropical North Atlantic Ocean for 117.7±0.8 kyr ago, using coral Sr/Ca and d18O records. We find that temperature seasonality was similar to today, which is consistent with the orbital insolation forcing. Our coral and climate model results suggest that temperature seasonality of the tropical surface ocean is controlled mainly by orbital insolation changes during interglacials.
| year | journal | country | edition | language |
|---|---|---|---|---|
| 2015-01-01 |