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CRP El Niño member - Ms. Ellen Druffel

Ms. Ellen Druffel

University of California, Irvine
Irvine, USA

Scientific Background

Druffel's current research is centered on carbon cycling and climate reconstruction during the past few centuries. She conducts studies of coral isotope geochemistry using radiocarbon (14C) measured by accelerator mass spectrometry (AMS), and stable oxygen and carbon isotopes. She has applied these measurements toward the study of past circulation changes in the surface and upper water column, as they relate to climate change. Additionally, she studies the oceans in their role as the major sink for anthropogenic carbon.



  • Druffel, E.R.M, S. Griffin, * J. Hwang, * T. Komada, * S. R. Beaupre, * K. C. Druffel-Rodriguez, G. M. Santos and J. Southon (2004) Variability of radiocarbon during the 1760s in monthly corals from the Galapagos Islands, Radiocarbon, 46(2), 627-632.
  • Druffel, E.R.M, (2004). Comments on the importance of black carbon in the global carbon cycle, Marine Chemistry, 92, 197-200.
  • Druffel, E.R.M., S. Griffin, S. R. Beaupre and R. B. Dunbar (2007) Oceanic climate and circulation changes during the past four centuries from radiocarbon in corals, Geophysical Research Letters, 34, doi:10.1029/2006GL028681.
  • Druffel, ERM, L Robinson, S Griffin, R Halley, J Southon and J Adkins (2007) Low reservoir ages for the surface ocean from mid-Holocene Florida corals, Paleoceanography, in press.


  • Hwang, J., E. R. M. Druffel, and * T. Komada, (2005), Transport of organic carbon from the California coast to the slope region: A study of Δ14C and δ13C signatures of organic compound classes, Global Biogeochemical Cycles, 19, GB2018, doi:10.1029/2004GB002422.