Jee Woong Choi received the Ph.D. degrees, from the Hanyang University (Korea), Department of Earth and Marine Sciences in 2002. From 2002 to 2007, he had been a Research Associate at the Applied Physics Laboratory, University of Washington, Seattle (USA). He is currently a Professor in the Department of Marine Science and Convergence Engineering, Hanyang University-ERICA, Korea, where he has been since 2007. In recent years, his main areas of research have included acoustic propagation in shallow water, acoustic interaction with ocean boundaries, geoacoustic inversion, and underwater acoustic communication. Dr. Choi is a member of the Acoustical Society of America and the Acoustical Society of Korea. He is currently Secretary General of the Western Pacific Commission for Acoustics.