Millennial-Scale Climate Variations

Millennial-scale climate change during the Pleistocene

At sites in the northwestern subtropical North Atlantic we are generating multi-species, high resolution, planktonic and benthic foraminiferal stable isotope records that span the middle Pleistocene. This time period includes many glacial to interglacial cycles as climate evolved toward more extreme states. Our objectives are to investigate the relative climate stability of glacial versus interglacial periods, potential links between orbital forcing and millennial-scale climate response, and associated variations in deep ocean circulation. This research has been funded by the NSF (OCE-0452666 and OCE-1060208) and contributed to the following publications (graduate student authors are marked by one asterisk, undergraduate students are marked by two asterisks):

Billups, K., **N. Rabideaux, and **J. Stoffel, Suborbital-Scale Surface and Deep Water Records in the Subtropical North Atlantic: Implications on Thermohaline Overturn, Quaternary Science Reviews, 30, 2976-2987, 2011.

*Weirauch, D., Billups, K. and P. Martin, Evolution of Millennial-Scale Climate Variability During the Mid Pleistocene, Paleoceanography, 23, PA3216, doi:10.1029/2007PA001584.

Billups, K., *C. Lindley, **J. Fisler, and P. Martin, Mid Pleistocene climate instability in the subtropical northwestern Atlantic, Global Planetary Change, 54, 251-262, 2006.


Featured Faculty

Katharina Billups

Katharina Billups picture

Associate Director, Oceanography and Professor Oceanography


CEOE School & Departments

School of Marine Science & Policy

Advancing the understanding, stewardship, and conservation of estuarine, coastal, and ocean environments.

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Department of Geological Sciences

Discovering how geological processes have operated over various time scales to create and influence the planet’s surface environments.

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Department of Geography

Investigating the interactions between people and the environment and the processes that explain the location of human and natural phenomena.

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