Award Abstract # 0726829
Evaluation of centennial-millennial eastern Indian Ocean climate variability & mechanisms during the Holocene: Surface & thermocline reconstructions

NSF Org: OCE
Division Of Ocean Sciences
Recipient: WOODS HOLE OCEANOGRAPHIC INSTITUTION
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: FY 2007 = $393,179.00
History of Investigator:
  • Delia Oppo (Principal Investigator)
    doppo@whoi.edu
Recipient Sponsored Research Office: Woods Hole Oceanographic Institution
266 WOODS HOLE RD
WOODS HOLE
MA  US  02543-1535
(508)289-3542
Sponsor Congressional District: 09
Primary Place of Performance: Woods Hole Oceanographic Institution
266 WOODS HOLE RD
WOODS HOLE
MA  US  02543-1535
Primary Place of Performance
Congressional District:
09
Unique Entity Identifier (UEI): GFKFBWG2TV98
Parent UEI:
NSF Program(s): Marine Geology and Geophysics
Primary Program Source: app-0107 
Program Reference Code(s): 0000, 1304, OTHR
Program Element Code(s): 162000
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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B. K. Linsley, Y. Rosenthal, and D. W. Oppo "Evolution of the Indonesian Throughflow and western Pacific warm pool during the Holocene" Nature Geoscience, , 2010
Chen, M.-T., X. P. Lin, Y.-P. Chang, Y.-C. Chen, L. Lo, C.-C. Shen, Y. Yokoyama, D. W. Oppo, W. G. Thompson, and R. Zhang "Dynamic millennial-scale climate changes in the northwestern Pacific over the past 40,000 years," Dynamic millennial-scale climate changes in the northwestern Pacific over the past 40,000 years, Geophys. Res. Lett., 37, L23603, doi:10.1029/2010GL045202 , 2010
Makou, M. C., T. I. Eglinton, D. W. Oppo, K. A. Hughen "Postglacial changes in El Ni�?�±o and La Ni�?�±a behavior" Geology , v.38 , 2010 , p.43 doi:10.1130/G30366.1,
Makou, M. C., T. I. Eglinton, D. W. Oppo, K. A. Hughen "Postglacial changes in El Niño and La Niña behavior" Geology , v.38 , 2010 , p.43 doi:10.1130/G30366.1,
Oppo, D. W., and Y. Rosenthal "The Great Indo-Pacific Communicator (Perspective)" Science , v.328 , 2010 , p.1492-1494
Tierney, J. E., D. W. Oppo, Y. Rosenthal, J. M. Russell, and B. K. Linsley "Coordinated hydrological regimes in the Indo-Pacific region during the past two millennia" Paleoceanography , v.25 , 2010 doi:10.1029/2009PA001871

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