Paleoceanography, marine geochemistry, and climate change
kellygi (at) usca (dot) edu
Instructor: USC Aiken, Department of Biology/Geology
Adjunct Assistant Professor: USC Columbia, School of the Earth, Ocean, and Environment
As a paleoclimatologist, I'm interested in using proxies like stable isotopes and trace elements in archives such as marine sediments and microfossils to reconstruct changes in climate and the marine environment throughout time.
In particular, I'm interested in rapid, abrupt climate changes (those that happen in several decades or less), and in understanding the links and teleconnections between the tropics and high latitudes. I'm also interested in proxy refinement and science communication, the latter of which strongly informs my teaching methods. My research and field work have taken me to the Tropical North Atlantic (Caribbean), Eastern Tropical North Pacific, and Western Pacific Warm Pool.
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Current and future projects include:
- reconstructing changes in primary productivity in the Western Pacific Warm Pool during the onset of Northern Hemisphere glaciation
- testing the use of Ba/Ca as a proxy for riverine input in the Gulf of Papua over the last deglaciation
- looking at recent (<1000 yr) changes in the northward advection of the ETNP denitrification signal along the California coast using sedimentary nitrogen isotopes from the Monterey Bay region