Jinku Park, United States, Jeong-Hoon Kim, Korea Polar Research Institute, Incheon, Korea, Republic of (South), Hyun-cheol Kim, Korea Polar Research Institute, Incheon, South Korea, Bong-Guk Kim, Seoul National University, Seoul, Korea, Republic of (South), Dukwon Bae, Pusan National University, Oceanography, Busan, South Korea, Young-Heon Jo, Pusan National University, Department of Oceanography, Busan, South Korea, Naeun Jo, Pusan National University, South Korea and Sang Lee, Pusan National University, Busan, Korea, Republic of (South)