Daniel Sigman is a geoscientist at Princeton University, USA, working in the fields of biogeochemistry, stable isotope geochemistry, and paleoceanography. Sigman focuses on the use of the isotopes of nitrogen to study the nutrient cycling of the modern ocean and to reconstruct past changes in ocean biogeochemistry. He also develops and applies numerical models of global ocean geochemistry to investigate the interactions among nutrient biogeochemistry, the carbon cycle, and climate over the waxing and waning of ice ages.
Born in Los Angeles, he received a B.S. from Stanford University in 1991 and a Ph.D. from the Massachusetts Institute of Technology/Woods Hole Oceanographic Joint Program in Oceanography in 1997.
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