Bottom pressure near the Ryukyu Island Chain with 21-day period
|Temporal extent||2015 -2017|
|Author(s)||Hua Zheng1, Xiao-Hua Zhu1, Hirohiko Nakamura2, Jae-Hun Park3, Chanhyung Jeon4, Ruixiang Zhao1, Ayako Nishina2, Chuanzheng Zhang1, Hanna Na5, Ze-Nan Zhu1, Hong Sik Min6|
|Affiliation(s)||1 : State Key Laboratory of Satellite Ocean Environment Dynamics, Second Institute of Oceanography, Ministry of Natural Resources, Hangzhou, 310012, China
2 : Faculty of Fisheries, Kagoshima University, Shimoarata, Kagoshima, Japan
3 : Department of Ocean Sciences, Inha University, Incheon, Korea
4 : Department of Marine Science and Biological Engineering, Inha University, Incheon, Korea
5 : School of Earth and Environmental Sciences, Seoul National University, Seoul, Korea
6 : Ocean Circulation and Climate Research Center, Korea Institute of Ocean Science and Technology, Busan, Korea
As a part of the Joint Kuroshio–Ryukyu Current System Study (JKRYCSS) between June 2015 and June 2017, two pressure-recording inverted echo sounders (PIESs) and five current and pressure-recording inverted echo sounders (CPIESs) deployed along a section transecting the Kuroshio and Ryukyu currents near Miyakojima Island, southwest of the Kerama Gap provided 2-year bottom pressure records which shows significant 21-day period variability.
|Acknowledgments||In the deployment and recovery of instruments, we acknowledge the support of the Joint Kuroshio–Ryukyu Current System Study (JKRYCSS) project.|
PIES(pressure-recording inverted echo sounders) is an echo sounder that rests on the seafloor and records acoustic round-trip travel time, bottom pressure, and bottom temperature. CPIES(current and pressure-recording inverted echo sounders) is a PIES further equipped with a current meter ~50 m above the bottom.