博士(理学), 東京大学

Natural sciences, Atmospheric and hydrospheric science

Chiho Sukigara; Taichi Yokokawa; Akiko Makabe; Kaho Mori; Yu Nakajima; Shinya Kouketsu; Eiji Tasumi; Masumi Hasegawa-Takano; Naoto F. Ishikawa; Chunqi Jiang; Siyu Jiang; Riku Miyase; Satoshi Nishino; Youta Sugai; Kento Tominaga; Hiroshi Uchida; Yu Yoshida; Susumu Yoshizawa; Shinsuke Kawagucci
Diel and daily changes of water mass structure and biogeochemical processes in early spring in the western subtropical North Pacific
Progress in Earth and Planetary Science, 20 Nov. 2025
12, 1

Ryohei Yamaguchi; Shinya Kouketsu; Naohiro Kosugi; Masao Ishii
Global upper ocean dissolved oxygen budget for constraining the biological carbon pump
Communications Earth & Environment, 16 Dec. 2024
5, 1

A. Murata; S. Kouketsu; K. Sasaoka; K. Arulananthan
Modulation of Surface Seawater CO₂ System at 80°E: Impacts of the Positive IOD in 2019
Journal of Geophysical Research: Oceans, 26 Nov. 2024
129, 12

Nozomi Sugiura; Shinya Kouketsu; Satoshi Osafune
Ocean data assimilation focusing on integral quantities characterizing observation profiles
Frontiers in Marine Science, 30 Sep. 2024
11

M. Fujita; N. Sugiura; S. Kouketsu
Prediction of Atmospheric Profiles With Machine Learning Using the Signature Method
Geophysical Research Letters, 20 Mar. 2024
51, 6

Jonathan Derot; Nozomi Sugiura; Sangyeob Kim; Shinya Kouketsu
Improved climate time series forecasts by machine learning and statistical models coupled with signature method: A case study with El Niño
Ecological Informatics, Mar. 2024
79, 102437, 102437

Yusuke Sasaki; Ichiro Yasuda; Katsuro Katsumata; Shinya Kouketsu; Hiroshi Uchida
Turbulence Across the Antarctic Circumpolar Current in the Indian Southern Ocean: Micro‐Temperature Measurements and Finescale Parameterizations
Journal of Geophysical Research: Oceans, Feb. 2024
[Reviewed]

Tong Wang; Toshio Suga; Shinya Kouketsu
Spiciness anomalies in the upper North Pacific based on Argo observations
Frontiers in Marine Science, 17 Nov. 2022
9

Satoshi Osafune; Shinya Kouketsu; Toshimasa Doi; Nozomi Sugiura; Shuhei Masuda
A global ocean state estimation using tidally induced vertical-mixing schemes
Ocean Modelling, Nov. 2022

Fuminori Hashihama; Shinya Kouketsu; Yoshiko Kondo; Yoshi N. Sasaki; Shusaku Sugimoto; Kazutaka Takahashi; Takeyoshi Nagai; Jun Nishioka; Hakase Hayashida; and Junya Hirai
Decadal vision in oceanography 2021: Mid-latitude ocean
Oceanography in Japan, 15 Nov. 2021
30, 5, 127, 154

橋濱史典; 纐纈慎也; 近藤能子; 佐々木克徳; 杉本周作; 高橋一生; 長井健容; 西岡純; 林田博士; 平井淳也
海洋学の10年展望2021：中緯度
海の研究, Nov. 2021
30, 5, 131, 158
[Reviewed]

Daiki Ito; Toshio Suga; Shinya Kouketsu; Eitarou Oka; Yoshimi Kawai
Spatiotemporal evolution of submesoscale filaments at the periphery of an anticyclonic mesoscale eddy north of the Kuroshio Extension
Journal of Oceanography, Oct. 2021
77, 5, 763, 780

Shinya Kouketsu
Inverse estimation of diffusivity coefficients from salinity distributions on isopycnal surfaces using Argo float array data
Journal of Oceanography, 19 Aug. 2021
77, 4, 615, 630

Yasutaka Goto; Ichiro Yasuda; Maki Nagasawa; Shinya Kouketsu; Toshiya Nakano
Estimation of Basin-scale turbulence distribution in the North Pacific Ocean using CTD-attached thermistor measurements
Scientific Reports, 13 Jan. 2021
11, 1

S. Itoh; H. Kaneko; S. Kouketsu; T. Okunishi; E. Tsutsumi; H. Ogawa; I. Yasuda
Vertical eddy diffusivity in the subsurface pycnocline across the Pacific
Journal of Oceanography, 2021

Nozomi Sugiura; Shinya Kouketsu; Shuhei Masuda; Satoshi Osafune; Ichiro Yasuda
Estimating the population mean for a vertical profile of energy dissipation rate
Scientific Reports, Dec. 2020
10, 1

Eitarou Oka; Shinya Kouketsu; Daigo Yanagimoto; Daiki Ito; Yoshimi Kawai; Shusaku Sugimoto; Bo Qiu
Formation of Central Mode Water based on two zonal hydrographic sections in spring 2013 and 2016
Journal of Oceanography, Oct. 2020
76, 5, 373, 388

Shinya Kouketsu; Daisuke Sasano; Satoshi Osafune; Michio Aoyama
Relationships Among Decadal Changes in Nitrate and Salinity in the Eastern and Western North Pacific Ocean After 2000
Journal of Geophysical Research: Oceans, 27 Aug. 2020
125, 8
[Reviewed]

S. Osafune; S. Kouketsu; S. Masuda; N. Sugiura
Dynamical Ocean Response Controlling the Eastward Movement of a Heat Content Anomaly Caused by the 18.6‐Year Modulation of Localized Tidally Induced Mixing
Journal of Geophysical Research: Oceans, 29 Feb. 2020
125, 2
[Reviewed]

Shota Katsura; Hiromichi Ueno; Humio Mitsudera; Shinya Kouketsu
Spatial Distribution and Seasonality of Halocline Structures in the Subarctic North Pacific
JOURNAL OF PHYSICAL OCEANOGRAPHY, Jan. 2020
50, 1, 95, 109
[Reviewed]

Daiki Ito; Shinya Kouketsu; Toshio Suga
Submesoscale Oceanography: Findings and approach through observation
Oceanography in Japan, 25 Dec. 2019
28, 4-5-6, 75, 95

Bernadette M. Sloyan; Rik Wanninkhof; Martin Kramp; Gregory C. Johnson; Lynne D. Talley; Toste Tanhua; Elaine McDonagh; Caroline Cusack; Eleanor O'Rourke; Evin McGovern; Katsuro Katsumata; Steve Diggs; Julia Hummon; Masao Ishii; Kumiko Azetsu-Scott; Emmanuel Boss; Isabelle Ansorge; Fiz F. Perez; Herl{\'{e } } Mercier; Michael J; M. Williams; Leif Anderson; Jae Hak Lee; Akihiko Murata; Shinya Kouketsu; Emil Jeansson; Mario Hoppema; Edmo Campos
The Global Ocean Ship-Based Hydrographic Investigations Program (GO-SHIP): A Platform for Integrated Multidisciplinary Ocean Science
Frontiers in Marine Science, Aug. 2019
6
[Reviewed]

B. R. Carter; R. A. Feely; R. Wanninkhof; S. Kouketsu; R. E. Sonnerup; P. C. Pardo; C. L. Sabine; G. C. Johnson; B. M. Sloyan; A. Murata; S. Mecking; B. Tilbrook; K. Speer; L. D. Talley; F. J. Millero; S. E. Wijffels; A. M. Macdonald; N. Gruber; J. L. Bullister
Pacific Anthropogenic Carbon Between 1991 and 2017
Global Biogeochemical Cycles, May 2019
[Reviewed]

Hitoshi Kaneko; Takeshi Okunishi; Takashi Seto; Hiroshi Kuroda; Sachihiko Itoh; Shinya Kouketsu; Daisuke Hasegawa
Dual effects of reversed winter–spring temperatures on year‐to‐year variation in the recruitment of chub mackerel ( Scomber japonicus )
Fisheries Oceanography, Mar. 2019
28, 2, 212, 227
[Reviewed]

Yasunaka, S.; S. Kouketsu; P.G. Strutton; A.J. Sutton; A. Murata; S. Nakaoka; Y. Nojiri
Spatio-temporal variability of surface water pCO2 and nutrients in the tropical Pacific from 1981 to 2015
Deep Sea Res. Part II, 2019
167-170, 104680
[Reviewed]

Nozomi Sugiura; Shinya Kouketsu; Shuhei Masuda; Satoshi Osafune; Ichiro Yasuda
Estimating vertically averaged energy dissipation rate
Nonlinear Processes in Geophysics Discussions, Dec. 2018
1
[Reviewed]

Motoki Nagura; Shinya Kouketsu
Spiciness Anomalies in the Upper South Indian Ocean
Journal of Physical Oceanography, Sep. 2018
48, 9, 2081, 2101
[Reviewed]

Shinya Kouketsu
Spatial Distribution of Diffusivity Coefficients and the Effects on Water Mass Modification in the North Pacific
Journal of Geophysical Research: Oceans, Jun. 2018
123, 6, 4373, 4387
[Reviewed]

Eitarou Oka; Masao Ishii; Toshiya Nakano; Toshio Suga; Shinya Kouketsu; Masatoshi Miyamoto; Hideyuki Nakano; Bo Qiu; Shusaku Sugimoto; Yusuke Takatani
Fifty years of the 137°E repeat hydrographic section in the western North Pacific Ocean
Journal of Oceanography, 01 Apr. 2018
74, 2, 115, 145
[Reviewed]

Shinya Kouketsu; Satoshi Osafune; Yuichiro Kumamoto; Hiroshi Uchida
Eastward salinity anomaly propagation in the intermediate layer of the North Pacific
JOURNAL OF GEOPHYSICAL RESEARCH-OCEANS, Feb. 2017
122, 2, 1590, 1607
[Reviewed]

Ryuichiro Inoue; Vincent Faure; Shinya Kouketsu
Float observations of an anticyclonic eddy off Hokkaido
JOURNAL OF GEOPHYSICAL RESEARCH-OCEANS, Aug. 2016
121, 8, 6103, 6120
[Reviewed]

Ryuichiro Inoue; Shinya Kouketsu
Physical oceanographic conditions around the S1 mooring site
JOURNAL OF OCEANOGRAPHY, Jun. 2016
72, 3, 453, 464
[Reviewed]

Shinya Kouketsu; Hitoshi Kaneko; Takeshi Okunishi; Kosei Sasaoka; Sachihiko Itoh; Ryuichiro Inoue; Hiromichi Ueno
Mesoscale eddy effects on temporal variability of surface chlorophyll a in the Kuroshio Extension
JOURNAL OF OCEANOGRAPHY, Jun. 2016
72, 3, 439, 451
[Reviewed]

Ryuichiro Inoue; Toshio Suga; Shinya Kouketsu; Toshiyuki Kita; Shigeki Hosoda; Taiyo Kobayashi; Kanako Sato; Hiroyuki Nakajima; Takeshi Kawano
Western North Pacific Integrated Physical-Biogeochemical Ocean Observation Experiment (INBOX): Part 1. Specifications and chronology of the S1-INBOX floats
JOURNAL OF MARINE RESEARCH, Mar. 2016
74, 2, 43, 69
[Reviewed]

Ryuichiro Inoue; Makio C. Honda; Tetsuichi Fujiki; Kazuhiko Matsumoto; Shinya Kouketsu; Toshio Suga; Toshiro Saino
Western North Pacific Integrated Physical-Biogeochemical Ocean Observation Experiment (INBOX): Part 2. Biogeochemical responses to eddies and typhoons revealed from the S1 mooring and shipboard measurements
JOURNAL OF MARINE RESEARCH, Mar. 2016
74, 2, 71, 99
[Reviewed]

Shinya Kouketsu; Ryuichiro Inoue; Toshio Suga
Western North Pacific Integrated Physical-Biogeochemical Ocean Observation Experiment (INBOX): Part 3. Mesoscale variability of dissolved oxygen concentrations observed by multiple floats during S1-INBOX
JOURNAL OF MARINE RESEARCH, Mar. 2016
74, 2, 101, 131
[Reviewed]

Toshimasa Doi; Satoshi Osafune; Nozomi Sugiura; Shinya Kouketsu; Akihiko Murata; Shuhei Masuda; Takahiro Toyoda
Multidecadal change in the dissolved inorganic carbon in a long-term ocean state estimation
JOURNAL OF ADVANCES IN MODELING EARTH SYSTEMS, Dec. 2015
7, 4, 1885, 1900
[Reviewed]

Takahiro Toyoda; Nozomi Sugiura; Shuhei Masuda; Yuji Sasaki; Hiromichi Igarashi; Yoichi Ishikawa; Takaki Hatayama; Takeshi Kawano; Yoshimi Kawai; Shinya Kouketsu; Katsuro Katsumata; Hiroshi Uchida; Toshimasa Doi; Masao Fukasawa; Toshiyuki Awaji
An improved simulation of the deep Pacific Ocean using optimally estimated vertical diffusivity based on the Green's function method
GEOPHYSICAL RESEARCH LETTERS, Nov. 2015
42, 22, 9916, 9924
[Reviewed]

Hitoshi Kaneko; Sachihiko Itoh; Shinya Kouketsu; Takeshi Okunishi; Shigeki Hosoda; Toshio Suga
Evolution and modulation of a poleward-propagating anticyclonic eddy along the Japan and Kuril-Kamchatka trenches
JOURNAL OF GEOPHYSICAL RESEARCH-OCEANS, Jun. 2015
120, 6, 4418, 4440
[Reviewed]

Eitarou Oka; Kazuyuki Uehara; Toshiya Nakano; Toshio Suga; Daigo Yanagimoto; Shinya Kouketsu; Sachihiko Itoh; Shota Katsura; Lynne D. Talley
Synoptic observation of Central Mode Water in its formation region in spring 2003
JOURNAL OF OCEANOGRAPHY, Dec. 2014
70, 6, 521, 534
[Reviewed]

Shinya Kouketsu; Akihiko M. Murata
Detecting decadal scale increases in anthropogenic CO2 in the ocean
GEOPHYSICAL RESEARCH LETTERS, Jul. 2014
41, 13, 4594, 4600
[Reviewed]

Yuichiro Kumamoto; Michio Aoyama; Yasunori Hamajima; Tatsuo Aono; Shinya Kouketsu; Akihiko Murata; Takeshi Kawano
Southward spreading of the Fukushima-derived radiocesium across the Kuroshio Extension in the North Pacific
SCIENTIFIC REPORTS, Mar. 2014
4
[Reviewed]

Shinya Kouketsu; Akihiko Murata; Toshimasa Doi
Decadal changes in dissolved inorganic carbon in the Pacific Ocean
GLOBAL BIOGEOCHEMICAL CYCLES, 2013
27, 1, 65, 76
[Reviewed]

Eitarou Oka; Bo Qiu; Shinya Kouketsu; Kazuyuki Uehara; Toshio Suga
Decadal seesaw of the Central and Subtropical Mode Water formation associated with the Kuroshio Extension variability
JOURNAL OF OCEANOGRAPHY, Apr. 2012
68, 2, 355, 360
[Reviewed]

Shinya Kouketsu; Hiroyuki Tomita; Eitarou Oka; Shigeki Hosoda; Taiyo Kobayashi; Kanako Sato
The role of meso-scale eddies in mixed layer deepening and mode water formation in the western North Pacific
JOURNAL OF OCEANOGRAPHY, Feb. 2012
68, 1, 63, 77
[Reviewed]

Hiroyuki Tomita; Shinya Kouketsu; Eitarou Oka; Masahisa Kubota
Locally enhanced wintertime air-sea interaction and deep oceanic mixed layer formation associated with the subarctic front in the North Pacific
GEOPHYSICAL RESEARCH LETTERS, Dec. 2011
38, 24, n/a
[Reviewed]

Shinya Kouketsu; Toshimasa Doi; Takeshi Kawano; Shuhei Masuda; Nozomi Sugiura; Yuji Sasaki; Takahiro Toyoda; Hiromichi Igarashi; Yoshimi Kawai; Katsuro Katsumata; Hiroshi Uchida; Masao Fukasawa; Toshiyuki Awaji
Deep ocean heat content changes estimated from observation and reanalysis product and their influence on sea level change
JOURNAL OF GEOPHYSICAL RESEARCH-OCEANS, Mar. 2011
116, C3
[Reviewed]

Eitarou Oka; Shinya Kouketsu; Katsuya Toyama; Kazuyuki Uehara; Taiyo Kobayashi; Shigeki Hosoda; Toshio Suga
Formation and Subduction of Central Mode Water Based on Profiling Float Data, 2003-08
JOURNAL OF PHYSICAL OCEANOGRAPHY, Jan. 2011
41, 1, 113, 129
[Reviewed]

Takeshi Kawano; Toshimasa Doi; Hiroshi Uchida; Shinya Kouketsu; Masao Fukasawa; Yoshimi Kawai; Katsuro Katsumata
Heat Content Change in the Pacific Ocean between the 1990s and 2000s
DEEP-SEA RESEARCH PART II-TOPICAL STUDIES IN OCEANOGRAPHY, Jul. 2010
57, 13-14, 1141, 1151
[Reviewed]

Shinya Kouketsu; Masao Fukasawa; Daisuke Sasano; Yuichiro Kumamoto; Takeshi Kawano; Hiroshi Uchida; Toshimasa Doi
Changes in water properties around North Pacific intermediate water between the 1980s, 1990s and 2000s
DEEP-SEA RESEARCH PART II-TOPICAL STUDIES IN OCEANOGRAPHY, Jul. 2010
57, 13-14, 1177, 1187
[Reviewed]

Shuhei Masuda; Toshiyuki Awaji; Nozomi Sugiura; John Philip Matthews; Takahiro Toyoda; Yoshimi Kawai; Toshimasa Doi; Shinya Kouketsu; Hiromichi Igarashi; Katsuro Katsumata; Hiroshi Uchida; Takeshi Kawano; Masao Fukasawa
Simulated Rapid Warming of Abyssal North Pacific Waters
SCIENCE, Jul. 2010
329, 5989, 319, 322
[Reviewed]

T. Kawano; T. Doi; S. Kouketsu; H. Uchida; M. Fukasawa; K. Katsumata; Y. Kawai
Heat content and steric height change in the Pacific Ocean
OCEANS'10 IEEE Sydney, OCEANSSYD 2010, 2010
[Reviewed]

Shinya Kouketsu; Masao Fukasawa; Ikuo Kaneko; Takeshi Kawano; Hiroshi Uchida; Toshimasa Doi; Michio Aoyama; Kiyoshi Murakami
Changes in water properties and transports along 24 degrees N in the North Pacific between 1985 and 2005
JOURNAL OF GEOPHYSICAL RESEARCH-OCEANS, Jan. 2009
114, C1
[Reviewed]

Shinya Kouketsu; Ichiro Yasuda
Unstable frontal waves along the Kuroshio Extension with low-potential vorticity intermediate Oyashio water
JOURNAL OF PHYSICAL OCEANOGRAPHY, Oct. 2008
38, 10, 2308, 2321
[Reviewed]

Shinya Kouketsu; Ichiro Yasuda; Yutaka Hiroe
Three-dimensional structure of frontal waves and associated salinity minimum formation along the Kuroshio Extension
JOURNAL OF PHYSICAL OCEANOGRAPHY, Mar. 2007
37, 3, 644, 656
[Reviewed]

Shinya Kouketsu; Ikuo Kaneko; Takeshi Kawano; Hiroshi Uchida; Toshimasa Doi; Masao Fukasawa
Changes of North Pacific Intermediate Water properties in the subtropical gyre
GEOPHYSICAL RESEARCH LETTERS, Jan. 2007
34, 2
[Reviewed]

Takeshi Kawano; Masao Fukasawa; Shinya Kouketsu; Hiroshi Uchida; Toshimasa Doi; Ikuo Kaneko; Michio Aoyama; Wolfgang Schneider
Bottom water warming along the pathway of lower circumpolar deep water in the Pacific Ocean
GEOPHYSICAL RESEARCH LETTERS, Dec. 2006
33, 23
[Reviewed]

S Kouketsu; Yasuda, I; Y Hiroe
Observation of frontal waves and associated salinity minimum formation along the Kuroshio Extension
JOURNAL OF GEOPHYSICAL RESEARCH-OCEANS, Aug. 2005
110, C8
[Reviewed]

Yasuda, I; S Kouketsu; K Katsumata; M Ohiwa; Y Kawasaki; A Kusaka
Influence of Okhotsk Sea Intermediate Water on the Oyashio and North Pacific Intermediate Water
JOURNAL OF GEOPHYSICAL RESEARCH-OCEANS, Dec. 2002
107, C12, 30
[Reviewed]

Yasuda, I; T Tozuka; M Noto; S Kouketsu
Heat balance and regime shifts of the mixed layer in the Kuroshio Extension
PROGRESS IN OCEANOGRAPHY, 2000
47, 2-4, 257, 278
[Reviewed]