Frank O. Nitsche received a MS in geophysics from the University of Kiel, Germany and a PhD from the University of Bremen, Germany. In 2001 he came to the Lamont-Doherty Earth Observatory of Columbia University where he started as a postdoctoral researcher and is now a research scientist. There he studies sediment processes and morphological conditions of the Hudson River Estuary and the Long Island Sound. In addition, he investigates the morphology of the Antarctic continental margin and is reconstructing the path of past ice streams and related sediment transport processes. He has participated in six expeditions to Antarctica and its surrounding Southern Ocean where he used acoustic mapping techniques and oceanographic measurements to understand past and present processes that shape the Antarctic continental margins and affect the ice sheet. He is involved in the creation of the International Bathymetric Chart of the Southern Ocean. Read more about Dr. Nitsche here.