Bottom pressure near the Ryukyu Island Chain with 21-day period

Date 2019
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
DOI 10.17882/62316
Publisher SEANOE
Keyword(s) Bottom pressure

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.

Licence CC-BY-NC-ND
Acknowledgments In the deployment and recovery of instruments, we acknowledge the support of the Joint Kuroshio–Ryukyu Current System Study (JKRYCSS) project.
Sensor metadata

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.

File Size Format Processing Access
Bottom pressure with 21-day period 938 KB TEXTE Processed data Open access
Bottom pressure - hourly data 936 KB TEXTE Raw data Open access
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How to cite 

Hua Zheng, Xiao-Hua Zhu, Hirohiko Nakamura, Jae-Hun Park, Chanhyung Jeon, Ruixiang Zhao, Ayako Nishina, Chuanzheng Zhang, Hanna Na, Ze-Nan Zhu, Hong Sik Min (2019). Bottom pressure near the Ryukyu Island Chain with 21-day period. SEANOE.