Deployment of drifting buoys with pCO                         2                          sensors in the Pacific Ocean

Akihiko Murata; Yoshiyuki Nakano; Shuhei Masuda; Sayaka Yasunaka; Kousei Sasaoka; Masahide Wakita

doi:10.1109/OCEANSKOBE.2018.8559125

Deployment of drifting buoys with pCO ₂ sensors in the Pacific Ocean

Akihiko Murata, Yoshiyuki Nakano, Shuhei Masuda, Sayaka Yasunaka, Kousei Sasaoka, Masahide Wakita

SCI - Center for Atmospheric and Oceanic Studies

Japan Agency for Marine-Earth Science and Technology

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution › peer-review

Abstract

To reduce areas lacking data of surface seawater pCO2, which is an indispensable property for the evaluation of atmospheric CO2 uptake by the ocean, in 2016 we started a 5-year project to deploy drifting buoys with pCO2 sensors in the South Pacific. The drifting buoy is compact (diameter, 315 mm; height, 566 mm; weight, ~10 kg) and easy to manage. For efficient deployment, we determined appropriate deployment positions along a ship track by particle tracking experiments. During the MR16-09 cruise of R/V Mirai, we deployed seven drifting buoys. The tracks of drifting buoys generally followed those predicted by the experiments. pCO2 values observed by drifting buoys and considered to be reliable were on the whole within values expected from interpolated pCO2 values. However, the pCO2 sensor needs to be improved to raise the pCO2 observation yield ratio of each drifting buoy.

Original language	English
Title of host publication	2018 OCEANS - MTS/IEEE Kobe Techno-Oceans, OCEANS - Kobe 2018
Publisher	Institute of Electrical and Electronics Engineers Inc.
ISBN (Electronic)	9781538616543
DOIs	https://doi.org/10.1109/OCEANSKOBE.2018.8559125
Publication status	Published - 2018 Dec 4
Event	2018 OCEANS - MTS/IEEE Kobe Techno-Oceans, OCEANS - Kobe 2018 - Kobe, Japan Duration: 2018 May 28 → 2018 May 31

Publication series

Name	2018 OCEANS - MTS/IEEE Kobe Techno-Oceans, OCEANS - Kobe 2018

Conference

Conference	2018 OCEANS - MTS/IEEE Kobe Techno-Oceans, OCEANS - Kobe 2018
Country/Territory	Japan
City	Kobe
Period	18/5/28 → 18/5/31

Keywords

Drifting buoy
PCO2 sensor
South Pacific
Spectrophotometry
Surface seawater pCO2

Access to Document

10.1109/OCEANSKOBE.2018.8559125

Cite this

Murata, A., Nakano, Y., Masuda, S., Yasunaka, S., Sasaoka, K., & Wakita, M. (2018). Deployment of drifting buoys with pCO ₂ sensors in the Pacific Ocean In 2018 OCEANS - MTS/IEEE Kobe Techno-Oceans, OCEANS - Kobe 2018 Article 8559125 (2018 OCEANS - MTS/IEEE Kobe Techno-Oceans, OCEANS - Kobe 2018). Institute of Electrical and Electronics Engineers Inc.. https://doi.org/10.1109/OCEANSKOBE.2018.8559125

Murata, Akihiko ; Nakano, Yoshiyuki ; Masuda, Shuhei et al. / Deployment of drifting buoys with pCO ₂ sensors in the Pacific Ocean 2018 OCEANS - MTS/IEEE Kobe Techno-Oceans, OCEANS - Kobe 2018. Institute of Electrical and Electronics Engineers Inc., 2018. (2018 OCEANS - MTS/IEEE Kobe Techno-Oceans, OCEANS - Kobe 2018).

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title = " Deployment of drifting buoys with pCO 2 sensors in the Pacific Ocean ",

abstract = "To reduce areas lacking data of surface seawater pCO2, which is an indispensable property for the evaluation of atmospheric CO2 uptake by the ocean, in 2016 we started a 5-year project to deploy drifting buoys with pCO2 sensors in the South Pacific. The drifting buoy is compact (diameter, 315 mm; height, 566 mm; weight, ~10 kg) and easy to manage. For efficient deployment, we determined appropriate deployment positions along a ship track by particle tracking experiments. During the MR16-09 cruise of R/V Mirai, we deployed seven drifting buoys. The tracks of drifting buoys generally followed those predicted by the experiments. pCO2 values observed by drifting buoys and considered to be reliable were on the whole within values expected from interpolated pCO2 values. However, the pCO2 sensor needs to be improved to raise the pCO2 observation yield ratio of each drifting buoy.",

keywords = "Drifting buoy, PCO2 sensor, South Pacific, Spectrophotometry, Surface seawater pCO2",

author = "Akihiko Murata and Yoshiyuki Nakano and Shuhei Masuda and Sayaka Yasunaka and Kousei Sasaoka and Masahide Wakita",

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Murata, A, Nakano, Y, Masuda, S, Yasunaka, S, Sasaoka, K & Wakita, M 2018, Deployment of drifting buoys with pCO ₂ sensors in the Pacific Ocean in 2018 OCEANS - MTS/IEEE Kobe Techno-Oceans, OCEANS - Kobe 2018., 8559125, 2018 OCEANS - MTS/IEEE Kobe Techno-Oceans, OCEANS - Kobe 2018, Institute of Electrical and Electronics Engineers Inc., 2018 OCEANS - MTS/IEEE Kobe Techno-Oceans, OCEANS - Kobe 2018, Kobe, Japan, 18/5/28. https://doi.org/10.1109/OCEANSKOBE.2018.8559125

Deployment of drifting buoys with pCO ₂ sensors in the Pacific Ocean . / Murata, Akihiko; Nakano, Yoshiyuki; Masuda, Shuhei et al.
2018 OCEANS - MTS/IEEE Kobe Techno-Oceans, OCEANS - Kobe 2018. Institute of Electrical and Electronics Engineers Inc., 2018. 8559125 (2018 OCEANS - MTS/IEEE Kobe Techno-Oceans, OCEANS - Kobe 2018).

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution › peer-review

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AU - Sasaoka, Kousei

AU - Wakita, Masahide

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N2 - To reduce areas lacking data of surface seawater pCO2, which is an indispensable property for the evaluation of atmospheric CO2 uptake by the ocean, in 2016 we started a 5-year project to deploy drifting buoys with pCO2 sensors in the South Pacific. The drifting buoy is compact (diameter, 315 mm; height, 566 mm; weight, ~10 kg) and easy to manage. For efficient deployment, we determined appropriate deployment positions along a ship track by particle tracking experiments. During the MR16-09 cruise of R/V Mirai, we deployed seven drifting buoys. The tracks of drifting buoys generally followed those predicted by the experiments. pCO2 values observed by drifting buoys and considered to be reliable were on the whole within values expected from interpolated pCO2 values. However, the pCO2 sensor needs to be improved to raise the pCO2 observation yield ratio of each drifting buoy.

AB - To reduce areas lacking data of surface seawater pCO2, which is an indispensable property for the evaluation of atmospheric CO2 uptake by the ocean, in 2016 we started a 5-year project to deploy drifting buoys with pCO2 sensors in the South Pacific. The drifting buoy is compact (diameter, 315 mm; height, 566 mm; weight, ~10 kg) and easy to manage. For efficient deployment, we determined appropriate deployment positions along a ship track by particle tracking experiments. During the MR16-09 cruise of R/V Mirai, we deployed seven drifting buoys. The tracks of drifting buoys generally followed those predicted by the experiments. pCO2 values observed by drifting buoys and considered to be reliable were on the whole within values expected from interpolated pCO2 values. However, the pCO2 sensor needs to be improved to raise the pCO2 observation yield ratio of each drifting buoy.

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Murata A, Nakano Y, Masuda S, Yasunaka S, Sasaoka K, Wakita M. Deployment of drifting buoys with pCO ₂ sensors in the Pacific Ocean In 2018 OCEANS - MTS/IEEE Kobe Techno-Oceans, OCEANS - Kobe 2018. Institute of Electrical and Electronics Engineers Inc. 2018. 8559125. (2018 OCEANS - MTS/IEEE Kobe Techno-Oceans, OCEANS - Kobe 2018). doi: 10.1109/OCEANSKOBE.2018.8559125