
NSF Org: |
OCE Division Of Ocean Sciences |
Recipient: |
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Initial Amendment Date: | July 31, 2007 |
Latest Amendment Date: | July 31, 2007 |
Award Number: | 0726829 |
Award Instrument: | Standard Grant |
Program Manager: |
Bilal U. Haq
OCE Division Of Ocean Sciences GEO Directorate for Geosciences |
Start Date: | August 1, 2007 |
End Date: | January 31, 2011 (Estimated) |
Total Intended Award Amount: | $393,179.00 |
Total Awarded Amount to Date: | $393,179.00 |
Funds Obligated to Date: |
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History of Investigator: |
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Recipient Sponsored Research Office: |
266 WOODS HOLE RD WOODS HOLE MA US 02543-1535 (508)289-3542 |
Sponsor Congressional District: |
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Primary Place of Performance: |
266 WOODS HOLE RD WOODS HOLE MA US 02543-1535 |
Primary Place of
Performance Congressional District: |
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Unique Entity Identifier (UEI): |
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Parent UEI: |
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NSF Program(s): | Marine Geology and Geophysics |
Primary Program Source: |
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Program Reference Code(s): |
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Program Element Code(s): |
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Award Agency Code: | 4900 |
Fund Agency Code: | 4900 |
Assistance Listing Number(s): | 47.050 |
ABSTRACT
Evaluation of centennial-millennial eastern Indian Ocean climate variability & mechanisms during the Holocene: Surface & thermocline reconstructions
Delia Oppo
Woods Hole Oceanographic Institution
Abstract
This project seeks to understand the climatic influences and dynamics, on multidecadal, centennial, and millennial time scales, of the tropical Eastern Indian Ocean by reconstructing changes in the Indian Ocean Dipole (IOD). The PI proposes to generate Mg/Ca- and d18O data from multiple species of planktonic foraminifer from different depth habitats through the mixed layer and thermocline to produce glacial, deglacial, and Holocene reconstructions of sea surface and thermocline temperatures and d18Oseawater from rapidly accumulating marine sediments (>60 cm/ky) that were previously collected by Univ. Bremen colleagues from the eastern Indian Ocean west of Sumatra and south of Java. The research will explore SST variability and cyclicity of the IOD in the Indian Ocean warm pool during the last 25,000 years, as well as focus on specific late Holocene time periods such as the Medieval Warming and Little Ice Age. The project will also attempt to link IOD variability with changes in ENSO, the Asian and African monsoons and circulation through the Indonesian Throughflow.
PUBLICATIONS PRODUCED AS A RESULT OF THIS RESEARCH
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