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Dr. Delia Oppo

Senior Scientist
Geology & Geophysics Department

Contact Information:
Work: 508-289-2681
Building: Clark 117

Mailing Address:
266 Woods Hole Road, MS #23
Woods Hole Oceanographic Institution
Woods Hole, MA 02543

Research Interests

I study past variability of ocean circulation and the climatic impacts of those changes. My projects include reconstructing ocean circulation during the last Ice Age, during abrupt climate events that occurred as the large Ice Age continental ice sheets collapsed, and during the last 10,000 years in the absence of large ice sheets. With my many collaborators, I also research how these ocean circulation changes and other factors influence tropical rainfall and vegetation.

Recent Publications:

  • Costa K., S. G. Nielsen, Y. Wang, W. Lu. S. K. V. Hines, A. Jacobel, D. W. Oppo (2023). Marine sedimentary uranium to barium ratios as a potential quantitative proxy for Pleistocene bottom water oxygen concentrations Geochim. Cosmochim. Acta, 343, 1-16,
  • Du, X., J.M Russell, Z.Liu, B. L Otto-Bliesner, Y. Gao, C. Zhu, D. Oppo, M. Mohtadi, Y. Yan, V. Galy (2023) North Atlantic cooling triggered a zonal mode over the Indian Ocean during Heinrich Stadial 1, Science Advances, 9 DOI: 10.1126/sciadv.add49
  • Lu, W., Y. Wang, D. W. Oppo, S. G. Nielsen, K. M. Costa (2022).Comparing paleo-oxygenation proxies (benthic foraminiferal surface porosity, I/Ca, authigenic uranium) on modern sediments and the glacial Arabian Sea, Geochimica et Cosmochimica Acta, 331, 69-85,
  • Valley, S. G., Lynch-Stieglitz, J., Marchitto, T. M., & Oppo, D. W. (2022). Seawater cadmium in the Florida Straits over the Holocene and implications for upper AMOC variability. Paleoceanography and Paleoclimatology, 37, e2021PA004379.
  • Yu, J., D. W. Oppo Z. Jin, M. Lacerra, X. Ji, N. E. Umling, D. C. Lund, N. McCave, L. Menviel, J. Shao (2022) Millennial and centennial CO2 release from the Southern Ocean during the last deglaciation, Nature Geosciences 15, 293–299,
  • Du, X., J. M. Russell, Z. Liu, B. L. Otto-Bliesner, Y. Gao, C. Zhu, D. W. Oppo, M. Mohtadi, Y. Yan, V. V. Galy (2021) Deglacial trends in Indo-Pacific Warm Pool hydroclimate in an isotope‐enabled Earth system model and implications for isotope-based paleoclimate reconstructions, Quaternary Science Reviews 270, 107188.
  • Gu, S., Z. Liu, D. W. Oppo, J. Lynch-Stieglitz, A. Jahn, J. Zhang, K. Lindsay, L.Wu (2021) Remineralization dominating the d13C decrease in the mid-depth Atlantic during the last deglaciation, Earth and Planetary Science Letters 571, 117106.


Ph.D.: Geology. 1989. Columbia University, New York, NY.

B.S.: Mathematics. 1981. State University of New York at Albany