In memoriam: Robert D. Hunsucker 1930-2014

Robert D. Hunsucker (silent key) passed away peacefully on January 9, 2014, with family in Minnesota. He was 83, and was preceded in death by his f rst wife, Judith. An authority on radio propagation, radio sensing of the iono sphere, and the effects of atmospheric gravity waves (AGWs) on the ionosphere, he authored over 150 research papers, the text Radio Techniques for Probing the Terrestrial Ionosphere, and the text The High-Latitude Ionosphere and its Effects on Radio Propagation, with J. K. Hargreaves. He served as Asso ciate Editor for the journal Radio Science from 1992-1994, and was Editor-in-Chief from 1995-2002.