Arthur T. Ippen

Arthur Thomas Ippen was a noted hydrologist and engineer and was an Institute Professor at the Massachusetts Institute of Technology. Born to German parents, he attended high school and college in Aachen, Germany graduating with a degree in Civil Engineering in 1931. He then took an Institute of International Education scholarship to study at the University of Iowa but after his doctoral advisor, Floyd Nagler, died suddenly, Ippen transferred to Caltech to complete his Ph.D. His doctoral work, supervised by Theodore von Kármán and Robert T. Knapp, explored sediment transport and open-channel high-velocity flows and represented the first American development of sonic wave analogy to free-surface flow.