Bradtmiller is an isotope geochemist and paleoclimatologist/paleoceanographer interested in the ocean's role in climate change over glacial-interglacial timescales. Her recent research includes the use of uranium-series isotopes in the reconstruction of glacial ocean circulation rates, and in the characterization of those same isotopes in modern seawater and sediments. She is also involved in ongoing research into ocean biogeochemistry and nutrient cycling, with a focus on the transfer of carbon between the ocean and atmosphere during periods of past climate change. Bradtmiller has been teaching at Macalester since 2009. EDUCATION: B.A., Smith College, 2002; M.A., Columbia University, 2005; M.Phil., Columbia University, 2006; Ph.D., Columbia University, 2008
Articles
Intercal: Improvements to 232-thorium, 230-thorium and 231-protactinium analysis in seawater arising from GEOTRACES Intercalibration (with Maureen Auro, Laura F. Robinson, Andrea Burke, Martin Q. Fleisher, and Robert F. Anderson), Limnology and Oceanography: Methods (2012)
Application of an inverse method to interpret 231Pa/230Th observations from marine sediments (with Andrea Burke, Olivier Marchal, Jerry F. McManus, and Roger François), Paleoceanography (2011)
A deeper respired carbon pool in the glacial equatorial Pacific Ocean (with R F. Anderson, J P. Sachs, and M Q. Fleisher), Earth and Planetary Science Letters (2010)
Comparing glacial and Holocene opal fluxes in the Pacific sector of the Southern Ocean (with Robert F. Anderson, Martin Q. Fleisher, and Lloyd H. Burckle), Paleoceanography (2009)
Wind-Driven Upwelling in the Southern Ocean and the Deglacial Rise in Atmospheric CO2 (with R.F. Anderson, S. Ali, S.H.H.H. Nielsen, M.Q. Fleisher, B.E. Anderson, and L.H. Burckle), Science (2009)
Presentations
Using opal and organic carbon as proxies for trade wind strength during the African Humid Period (with M. B. Awalt, D. MCGee, and P. E. DeMenocal), American Geophysical Union (2012)
Reconstructing the large-scale deep and intermediate ocean circulation in the North Atlantic during the LGM and last deglaciation (with S. Hoffman, N. Roberts, G. Henry, J. F. McManus, K. Mohamed, S. Jaccard, J. Yu, A. Piotrowski, D. W. Oppo, S. Praetorius, and L. F. Robinson), Goldschmidt Conference (2012)
A record of Minnesota settlement history from River Lake (with K. Hart), Geological Society of America Annual Meeting (2011)
Undergraduate lacustrine research focusing on environmental change at Glacier National Park, Montana (with C. A. Riihimaki, K. R. MacGregor, A. Myrbo, K. Brady, P. Oddo, and J. Griffin), Geological Society of America Annual Meeting (2011)