Frank O. Nitsche received his M.S. in geophysics from the University of Kiel, Germany and a Ph.D. 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. His research uses mostly acoustic mapping techniques and data integration through GIS to understand sediment transport, deposition, and related processes that shape continental margins from estuaries to the deep sea.