Researcher Information
researchmap URL
Research activity information
Papers
- Haruka Nishikawa; Daisuke Matsuoka; Yasushi Nishimori; Takeharu Yamaguchi; Masanori Ito; Yoshitaka Watanabe; Daisuke Sugiyama; Tatsu Kuwatani; Yoichi Ishikawa
Estimation of the fish number in farming cage from the fish finder echo images via machine learning
Aquacultural Engineering, Jun. 2025
109, 102505, 102505 - Shiro Nishikawa; Toru Sugiyama; Masao Kurogi; Hiroyuki Tsujino; Hideyuki Nakano; Yoichi Ishikawa
Development of a high-resolution ocean ensemble future projection dataset for the North Pacific incorporating simple biogeochemical processes
Progress in Earth and Planetary Science, 20 Dec. 2024
11, 1 - H Nishikawa; H Tsujino; S Nishikawa; SI Nakayama; H Nakano; T Sugiyama; Y Ishikawa
Long-term comparison between the Japanese sardine Sardinops melanostictus stock level and simulated zooplankton density around the Kuroshio region
Marine Ecology Progress Series, 30 Jul. 2024
741, 271, 287 - Izuru TAKAYABU; Naota HANASAKI; Hideo SHIOGAMA; Daisuke ABE; Eiji IKOMA; Yoichi ISHIKAWA; Seita EMORI; Ai OBA; Tsuneo ONO; Tomohide SHIMADA; Kenro TAURA; Kiyoshi TAKAHASHI; Tosiyuki NAKAEGAWA; Eiichi NAKAKITA; Motoki NISHIMORI; Hiroaki HATSUSHIKA; Kiyoshi FUKUWATARI; Yoshifumi MASAGO; Naoyuki MIKAMI; Hiromune YOKOKI; Minoru YOSHIKAWA; Masahiro WATANABE
Linking Climate Change Prediction Research and Adaptation Decision-making
JOURNAL OF JAPAN SOCIETY OF HYDROLOGY AND WATER RESOURCES, 05 May 2024
37, 2, 167, 176 - Yuma Kawakami; Hideyuki Nakano; L. Shogo Urakawa; Takahiro Toyoda; Kei Sakamoto; Shiro Nishikawa; Toru Sugiyama; Masao Kurogi; Yoichi Ishikawa; Katsunari Sato; Goro Yamanaka
Future changes in marine heatwaves based on high-resolution ensemble projections for the northwestern Pacific Ocean
Journal of Oceanography, 31 Jan. 2024
80, 3, 177, 195
[Reviewed] - H. Tsujino; H. Nakano; K. Sakamoto; L. S. Urakawa; K. Toyama; N. Kosugi; Y. Kitamura; M. Ishii; S. Nishikawa; H. Nishikawa; T. Sugiyama; Y. Ishikawa
Impact of Increased Horizontal Resolution of an Ocean Model on Carbon Circulation in the North Pacific Ocean
Journal of Advances in Modeling Earth Systems, 04 Jan. 2024
16, 1 - H. Kawase; M. Nosaka; S. I. Watanabe; K. Yamamoto; T. Shimura; Y. Naka; Y.‐H. Wu; H. Okachi; T. Hoshino; R. Ito; S. Sugimoto; C. Suzuki; S. Fukui; T. Takemi; Y. Ishikawa; N. Mori; E. Nakakita; T. J. Yamada; A. Murata; T. Nakaegawa; I. Takayabu
Identifying Robust Changes of Extreme Precipitation in Japan From Large Ensemble 5‐km‐Grid Regional Experiments for 4K Warming Scenario
Journal of Geophysical Research: Atmospheres, 19 Sep. 2023
128, 18 - Taku Yutani; Oak Yono; Tatsu Kuwatani; Daisuke Matsuoka; Junji Kaneko; Mitsuko Hidaka; Takafumi Kasaya; Yukari Kido; Yoichi Ishikawa; Toshiaki Ueki; Eiichi Kikawa
Super-Resolution and Feature Extraction for Ocean Bathymetric Maps Using Sparse Coding
SENSORS, May 2022
22, 9 - 石崎 廣; 五十嵐 弘道; 荒井 頼子; 蒲地 政文; 石川 洋一; 齊藤 誠一
「ひまわり」及び「しきさい」衛星の海面水温とクロロフィルa データに対するヒストグラム解析に基づくフロント検出法の適用－初期平滑化の重要性－
北海道大学水産科学研究院紀要, Jan. 2022
60
[Reviewed] - Shiro Nishikawa; Tsuyoshi Wakamatsu; Hiroshi Ishizaki; Kei Sakamoto; Yusuke Tanaka; Hiroyuki Tsujino; Goro Yamanaka; Masafumi Kamachi; Yoichi Ishikawa
Development of high-resolution future ocean regional projection datasets for coastal applications in Japan
Progress in Earth and Planetary Science, Dec. 2021
8, 1
[Reviewed] - Izuru Takayabu; Naota Hanasaki; Hideo Shiogama; Yoichi Ishikawa; Seita Emori; Tomohide Shimada; Hiroya Sugisaki; Kiyoshi Takahashi; Toshiyuki Nakaegawa; Eiichi Nakakita; Motoki Nishimori; Masahiro Hashizume; Hiroaki Hatsushika; Tetsuya Matsui; Hiroya Yamano; Hiromune Yokoki; Masahiro Watanabe
To deliver climate change projection information to users
Journal of Japan Society of Hydrology & Water Resources, Nov. 2021
34, 6, 377, 385
[Reviewed] - HIDAKA Mitsuko; MATSUOKA Daisuke; KUWATANI Tatsu; KANEKO Junji; KASAYA Takafumi; KIDO Yukari; ISHIKAWA Yoichi; KIKAWA Eiichi
Super-resolution for Ocean Bathymetric Maps Using Deep Learning Approaches : A Comparison and Validation
Geoinformatics, 25 Mar. 2021
32, 1, 3, 13 - Goro Yamanaka; Hideyuki Nakano; Kei Sakamoto; Takahiro Toyoda; L. Shogo Urakawa; Shiro Nishikawa; Tsuyoshi Wakamatsu; Hiroyuki Tsujino; Yoichi Ishikawa
Projected climate change in the western North Pacific at the end of the 21st century from ensemble simulations with a high-resolution regional ocean model
Journal of Oceanography, 05 Feb. 2021
78, 2, 133, 134
[Reviewed] - Robinson Mugo; Sei-Ichi Saitoh; Hiromichi Igarashi; Takahiro Toyoda; Shuhei Masuda; Toshiyuki Awaji; Yoichi Ishikawa
Identification of skipjack tuna (Katsuwonus pelamis) pelagic hotspots applying a satellite remote sensing-driven analysis of ecological niche factors: A short-term run
PLOS ONE, 20 Aug. 2020
15, 8, e0237742, e0237742
[Reviewed] - Misako Matsuba; Yusuke Tanaka; Takehisa Yamakita; Yoichi Ishikawa; Katsunori Fujikura
Estimation of tsunami debris on seafloors towards future disaster preparedness: Unveiling spatial varying effects of combined land use and oceanographic factors
Marine Pollution Bulletin, Aug. 2020
157, 111289, 111289
[Reviewed] - Irene D. Alabia; Sei-Ichi Saitoh; Hiromichi Igarashi; Yoichi Ishikawa; Yutaka Imamura
Spatial Habitat Shifts of Oceanic Cephalopod (Ommastrephes bartramii) in Oscillating Climate
Remote Sensing, 05 Feb. 2020
12, 3, 521, 521
[Reviewed] - Yujin Nakagawa; Yosuke Onoue; Shitnaro Kawahara; Fumiaki Araki; Koji Koyamada; Daisuke Matsuoka; Yoichi Ishikawa; Mikiko Fujita; Shiori Sugimoto; Yasuko Okada; Sho Kawazoe; Shingo Watanabe; Masayoshi Ishii; Ryo Mizuta; Akihiko Murata; Hiroaki Kawase
Development of a system for efficient content-based retrieval to analyze large volumes of climate data
PROGRESS IN EARTH AND PLANETARY SCIENCE, Feb. 2020
7, 1 - 二宮 順一; 浜野 竜太朗; 森 信人; Josko TROSELJ; 石川 洋一; 西川 史朗
長期海洋再解析データによる日本海の海洋環境再現性評価と海峡流量解析
土木学会論文集B3（海洋開発）, Jan. 2018
74, 2, I_988, I_993
[Reviewed] - Hiromichi Igarashi; Sei-Ichi Saitoh; Yoichi Ishikawa; Masafumi Kamachi; Norihisa Usui; Mitsuo Sakai; Yutaka Imamura
Identifying potential habitat distribution of the neon flying squid (Ommastrephes bartramii) off the eastern coast of Japan in winter
FISHERIES OCEANOGRAPHY, Jan. 2018
27, 1, 16, 27
[Reviewed] - Yuusuke Tanaka; Yoichi Ishikawa; Hiromichi Igarashi; Haruka Nishikawa; Masafumi Kamachi
The development of high-resolution ocean numerical model for off-coast of Sanriku
Nippon Suisan Gakkaishi (Japanese Edition), 2018
84, 6, 1047, 1049 - Hideyuki Kawamura; Akiko Furuno; Takuya Kobayashi; Teiji In; Tomoharu Nakayama; Yoichi Ishikawa; Yasumasa Miyazawa; Norihisa Usui
Oceanic dispersion of Fukushima-derived Cs-137 simulated by multiple oceanic general circulation models
JOURNAL OF ENVIRONMENTAL RADIOACTIVITY, Dec. 2017
180, 36, 58
[Reviewed] - Xueyuan Liu; Armin Köhl; Detlef Stammer; Shuhei Masuda; Yoichi Ishikawa; Takashi Mochizuki
Impact of in-consistency between the climate model and its initial conditions on climate prediction
Climate Dynamics, 01 Aug. 2017
49, 3, 1061, 1075 - Takahiro Toyoda; Yosuke Fujii; Tsurane Kuragano; Naohiro Kosugi; Daisuke Sasano; Masafumi Kamachi; Yoichi Ishikawa; Shuhei Masuda; Kanako Sato; Toshiyuki Awaji; Fabrice Hernandez; Nicolas Ferry; Stephanie Guinehut; Matthew Martin; K. Andrew Peterson; Simon A. Good; Maria Valdivieso; Keith Haines; Andrea Storto; Simona Masina; Armin Koehl; Yonghong Yin; Li Shi; Oscar Alves; Gregory Smith; You-Soon Chang; Guillaume Vernieres; Xiaochun Wang; Gael Forget; Patrick Heimbach; Ou Wang; Ichiro Fukumori; Tong Lee; Hao Zuo; Magdalena Balmaseda
Interannual-decadal variability of wintertime mixed layer depths in the North Pacific detected by an ensemble of ocean syntheses
CLIMATE DYNAMICS, Aug. 2017
49, 3, 891, 907
[Reviewed] - Takahiro Toyoda; Yosuke Fujii; Tsurane Kuragano; Masafumi Kamachi; Yoichi Ishikawa; Shuhei Masuda; Kanako Sato; Toshiyuki Awaji; Fabrice Hernandez; Nicolas Ferry; Stephanie Guinehut; Matthew J. Martin; K. Andrew Peterson; Simon A. Good; Maria Valdivieso; Keith Haines; Andrea Storto; Simona Masina; Armin Koehl; Hao Zuo; Magdalena Balmaseda; Yonghong Yin; Li Shi; Oscar Alves; Gregory Smith; You-Soon Chang; Guillaume Vernieres; Xiaochun Wang; Gael Forget; Patrick Heimbach; Ou Wang; Ichiro Fukumori; Tong Lee
Intercomparison and validation of the mixed layer depth fields of global ocean syntheses
CLIMATE DYNAMICS, Aug. 2017
49, 3, 753, 773
[Reviewed] - Norihisa Usui; Tsuyoshi Wakamatsu; Yusuke Tanaka; Nariaki Hirose; Takahiro Toyoda; Shiro Nishikawa; Yosuke Fujii; Yasushi Takatsuki; Hiromichi Igarashi; Haruka Nishikawa; Yoichi Ishikawa; Tsurane Kuragano; Masafumi Kamachi
Four-dimensional variational ocean reanalysis: a 30-year high-resolution dataset in the western North Pacific (FORA-WNP30)
JOURNAL OF OCEANOGRAPHY, Apr. 2017
73, 2, 205, 233
[Reviewed] - 藤井陽介; 蒲地政文; 広瀬直毅; 望月崇; 瀬藤聡; 美山透; 広瀬成章; 長船哲史; HAN Sooyeon; 五十嵐弘道; 宮澤泰正; 豊田隆寛; 干場康博; 増田周平; 石川洋一; 碓氷典久; 黒田寛; 高山勝巳
Japanese studies of ocean data assimilation : milestones over the past 20 years and future perspectives
海の研究, Mar. 2017
26, 2, 15, 43
[Reviewed] - Hiromichi Igarashi; Taro Ichii; Mitsuo Sakai; Yoichi Ishikawa; Takahiro Toyoda; Shuhei Masuda; Nozomi Sugiura; Kedarnath Mahapatra; Toshiyuki Awaji
Possible link between interannual variation of neon flying squid (Ommastrephes bartramii) abundance in the North Pacific and the climate phase shift in 1998/1999
Progress in Oceanography, 01 Jan. 2017
150, 20, 34 - Wataru Sasaki; Ryo Onishi; Hiromitsu Fuchigami; Koji Goto; Shiro Nishikawa; Yoichi Ishikawa; Keiko Takahashi
MJO simulation in a cloud-system-resolving global ocean-atmosphere coupled model
GEOPHYSICAL RESEARCH LETTERS, Sep. 2016
43, 17, 9352, 9360
[Reviewed] - Irene D. Alabia; Sei-Ichi Saitoh; Hiromichi Igarashi; Yoichi Ishikawa; Norihisa Usui; Masafumi Kamachi; Toshiyuki Awaji; Masaki Seito
Ensemble squid habitat model using three-dimensional ocean data
ICES JOURNAL OF MARINE SCIENCE, Jul. 2016
73, 7, 1863, 1874
[Reviewed] - Irene D. Alabia; Sei-Ichi Saitoh; Toru Hirawake; Hiromichi Igarashi; Yoichi Ishikawa; Norihisa Usui; Masafumi Kamachi; Toshiyuki Awaji; Masaki Seito
Elucidating the potential squid habitat responses in the central North Pacific to the recent ENSO flavors
HYDROBIOLOGIA, Jun. 2016
772, 1, 215, 227
[Reviewed] - Irene D. Alabia; Sei-ichi Saitoh; Hiromichi Igarashi; Yoichi Ishikawa; Norihisa Usui; Masafumi Kamachi; Toshiyuki Awaji; Masaki Seito
Future projected impacts of ocean warming to potential squid habitat in western and central North Pacific
ICES JOURNAL OF MARINE SCIENCE, May 2016
73, 5, 1343, 1356
[Reviewed] - Takashi Mochizuki; Shuhei Masuda; Yoichi Ishikawa; Toshiyuki Awaji
Multiyear climate prediction with initialization based on 4D-Var data assimilation
GEOPHYSICAL RESEARCH LETTERS, Apr. 2016
43, 8, 3903, 3910
[Reviewed] - Hiromichi Igarashi; Yoichi Ishikawa; Haruka Nishikawa; Norihisa Usui; Mitsuo Sakai; Sei-ichi Saitoh; Yutaka Imamura
Habitat Suitability Index Model for Neon Flying Squid Adding Its Stock Effect
TECHNO-OCEAN 2016: RETURN TO THE OCEANS, 2016
449, 453
[Reviewed] - Irene D. Alabia; Sei-Ichi Saitoh; Robinson Mugo; Hiromichi Igarashi; Yoichi Ishikawa; Norihisa Usui; Masafumi Kamachi; Toshiyuki Awaji; Masaki Seito
Identifying Pelagic Habitat Hotspots of Neon Flying Squid in the Temperate Waters of the Central North Pacific
PLOS ONE, Nov. 2015
10, 11
[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] - Yang Liu; Sei-Ichi Saitoh; Yu Ihara; Satoshi Nakada; Makoto Kanamori; Xun Zhang; Katsuhisa Baba; Yoichi Ishikawa; Toru Hirawake
Development of a three-dimensional growth prediction model for the Japanese scallop in Funka Bay, Japan, using OGCM and MODIS
ICES JOURNAL OF MARINE SCIENCE, Nov. 2015
72, 9, 2684, 2699
[Reviewed] - Shuhei Masuda; John Philip Matthews; Yoichi Ishikawa; Takashi Mochizuki; Yuusuke Tanaka; Toshiyuki Awaji
A new Approach to El Nino Prediction beyond the Spring Season
SCIENTIFIC REPORTS, Nov. 2015
5
[Reviewed] - Ishikawa Yoichi; In Teiji; Nakada Satoshi; Nishina Kei; Igarashi Hiromichi; Hiyoshi Yoshimasa; Sasaki Yuji; Wakamatsu Tsuyoshi; Awaji Toshiyuki
Variational data assimilation system with nesting model for high resolution ocean circulation
FLUID DYNAMICS RESEARCH, Oct. 2015
47, 5, 1, 17
[Reviewed] - Kun Zhao; Satoshi Nakada; Naohisa Sakamoto; Koji Koyamada; Chandrajit Bajaj; Yoichi Ishikawa; Toshiyuki Awaji; Teiji In; Sei-Ichi Saitoh
A visualization for the dynamic behaviors of the mixture of water mass for northwestern pacific near Japan (vol 4, 1341002, 2013)
INTERNATIONAL JOURNAL OF MODELING SIMULATION AND SCIENTIFIC COMPUTING, Jun. 2015
6, 2
[Reviewed] - Haruka Nishikawa; Takahiro Toyoda; Shuhei Masuda; Yoichi Ishikawa; Yuji Sasaki; Hiromichi Igarashi; Mitsuo Sakai; Masaki Seito; Toshiyuki Awaji
Wind-induced stock variation of the neon flying squid (Ommastrephes bartramii) winter-spring cohort in the subtropical North Pacific Ocean
Fisheries Oceanography, 01 May 2015
24, 3, 229, 241 - Irene D. Alabia; Sei-Ichi Saitoh; Robinson Mugo; Hiromichi Igarashi; Yoichi Ishikawa; Norihisa Usui; Masafumi Kamachi; Toshiyuki Awaji; Masaki Seito
Seasonal potential fishing ground prediction of neon flying squid (Ommastrephes bartramii) in the western and central North Pacific
FISHERIES OCEANOGRAPHY, Mar. 2015
24, 2, 190, 203
[Reviewed] - Haruka Nishikawa; Hiromichi Igarashi; Yoichi Ishikawa; Mitsuo Sakai; Yoshiki Kato; Masahito Ebina; Norihisa Usui; Masafumi Kamachi; Toshiyuki Awaji
Impact of paralarvae and juveniles feeding environment on the neon flying squid (Ommastrephes bartramii) winter-spring cohort stock
FISHERIES OCEANOGRAPHY, Jul. 2014
23, 4, 289, 303
[Reviewed] - Tsuboi Seiji; Sonoda Akira; Hanafusa Yasunori; Ishikawa Yoichi; Hase Hideaki; Saito Hideaki; Sato Takako; Fukuda Kazuyo; Tanaka Katsuhiko; Igarashi Hiromichi; Maruyama Tadashi; Imawaki Shiro
Archive and dissemination of marine-earth science data and samples at the Data Research Center of JAMSTEC
JAMSTEC Report of Research and Development, 2014
18, 43, 51 - Igarashi Hiromichi; Awaji Toshiyuki; Ishikawa Yoichi; Kamachi Masafumi; Usui Norihisa; Sakai Mitsuo; Kato Yoshiki; Saitoh Sei-Ichi; Seito Masaki
Development of a habitat suitability index model for neon flying squid by using 3-D ocean reanalysis product and its practical use:－RECCA squid project－
JAMSTEC Rep. Res. Dev., 2014
18, 89, 101 - Nozomi Sugiura; Shuhei Masuda; Yosuke Fujii; Masafumi Kamachi; Yoichi Ishikawa; Toshiyuki Awaji
A Framework for Interpreting Regularized State Estimation
MONTHLY WEATHER REVIEW, Jan. 2014
142, 1, 386, 400
[Reviewed] - T. Toyoda; T. Awaji; S. Masuda; N. Sugiura; H. Igarashi; Y. Sasaki; Y. Hiyoshi; Y. Ishikawa; S. I. Saitoh; S. Yoon; T. In; M. J. Kishi
Improved state estimations of lower trophic ecosystems in the global ocean based on a Green's function approach
Progress in Oceanography, Dec. 2013
119, 90, 107
[Reviewed] - Satoshi Nakada; Yoichi Ishikawa; Toshiyuki Awaji; Teiji In; Koji Koyamada; Masamichi Watanobe; Hiroya Okumura; Yoshinori Nishida; Sei-Ichi Saitoh
An integrated approach to the heat and water mass dynamics of a large bay: High-resolution simulations of Funka Bay, Japan
Journal of Geophysical Research: Oceans, 01 Jul. 2013
118, 7, 3530, 3547 - S. Nakada; Y. Ishikawa; T. Awaji; T. In; S. Shima; T. Nakayama; T. Isada; S.-I. Saitoh
Modeling runoff into a Region Of Freshwater Influence for improved ocean prediction: Application to Funka Bay
Hydrological Research Letters, 2012
6, 47, 52
[Reviewed] - Nakada Satoshi; Uenaka Takashi; Ishikawa Yoichi; Matsui Kenta; Sakamoto Naohisa; Koyamada Koji; Awaji Toshiyuki; Saitoh Sei-Ichi
A Visualization Study of Vortices Extracted from the Tremendous Ocean Simulation Data: An Application in Funka Bay
日本シミュレーション学会論文誌, 2012
4, 4, 145, 152
[Reviewed] - Belinda Lipa; Donald Barrick; Sei-Ichi Saitoh; Yoichi Ishikawa; Toshiyuki Awaji; John Largier; Newell Garfield
Japan Tsunami Current Flows Observed by HF Radars on Two Continents
REMOTE SENSING, Aug. 2011
3, 8, 1663, 1679
[Reviewed] - J. P. Matthews; H. Aiki; S. Masuda; T. Awaji; Y. Ishikawa
Monsoon regulation of Lombok Strait internal waves
JOURNAL OF GEOPHYSICAL RESEARCH-OCEANS, May 2011
116 - Sei-Ichi Saitoh; Robinson Mugo; I. Nyoman Radiarta; Shinsuke Asaga; Fumihiro Takahashi; Toru Hirawake; Yoichi Ishikawa; Toshiyuki Awaji; Teiji In; Shigeki Shima
Some operational uses of satellite remote sensing and marine GIS for sustainable fisheries and aquaculture
ICES JOURNAL OF MARINE SCIENCE, Mar. 2011
68, 4, 687, 695
[Reviewed] - T. Toyoda; T. Awaji; S. Masuda; N. Sugiura; H. Igarashi; T. Mochizuki; Y. Ishikawa
Interannual variability of North Pacific eastern subtropical mode water formation in the 1990s derived from a 4-dimensional variational ocean data assimilation experiment
Dynamics of Atmospheres and Oceans, Jan. 2011
51, 1-2, 1, 25 - Takahiro Toyoda; Toshiyuki Awaji; Nozomi Sugiura; Shuhei Masuda; Hiromichi Igarashi; Yuji Sasaki; Yoshihisa Hiyoshi; Yoichi Ishikawa; Takashi Mochizuki; Takashi T. Sakamoto; Hiroaki Tatebe; Yoshiki Komuro; Tatsuo Suzuki; Teruyuki Nishimura; Masato Mori; Yoshimitsu Chikamoto; Sayaka Yasunaka; Yukiko Imada; Miki Arai; Masahiro Watanabe; Hideo Shiogama; Toru Nozawa; Akira Hasegawa; Masayoshi Ishii; Masahide Kimoto
Impact of the Assimilation of Sea Ice Concentration Data on an Atmosphere-Ocean-Sea Ice Coupled Simulation of the Arctic Ocean Climate
SOLA, 2011
7, 37, 40
[Reviewed] - Kosuke Ito; Yoichi Ishikawa; Toshiyuki Awaji
Specifying Air-Sea Exchange Coefficients in the High-Wind Regime of a Mature Tropical Cyclone by an Adjoint Data Assimilation Method
SOLA, 2010
6, 13, 16
[Reviewed] - Nozomi Sugiura; Toshiyuki Awaji; Shuhei Masuda; Takahiro Toyoda; Hiromichi Igarashi; Yoichi Ishikawa; Masayoshi Ishii; Masahide Kimoto
Potential for decadal predictability in the North Pacific region
GEOPHYSICAL RESEARCH LETTERS, Oct. 2009
36
[Reviewed] - T. Toyoda; S. Masuda; N. Sugiura; T. Mochizuki; H. Igarashi; M. Kamachi; Y. Ishikawa; T. Awaji
A possible role for unstable coupled waves affected by resonance between Kelvin waves and seasonal warming in the development of the strong 1997-1998 El Niño
Deep-Sea Research Part I: Oceanographic Research Papers, Apr. 2009
56, 4, 495, 512 - Shuhei Masuda; Toshiyuki Awaji; Takahiro Toyoda; Yasutaka Shikama; Yoichi Ishikawa
Temporal evolution of the equatorial thermocline associated with the 1991–2006 ENSO
J. Geophys. Res., Mar. 2009
114, C3
[Reviewed] - Nozomi Sugiura; Toshiyuki Awaji; Shuhei Masuda; Takashi Mochizuki; Takahiro Toyoda; Toru Miyama; Hiromichi Igarashi; Yoichi Ishikawa
Development of a four-dimensional variational coupled data assimilation system for enhanced analysis and prediction of seasonal to interannual climate variations
JOURNAL OF GEOPHYSICAL RESEARCH-OCEANS, Oct. 2008
113, C10
[Reviewed] - Shuhei Masuda; Toshiyuki Awaji; Nozomi Sugiura; Takahiro Toyoda; Yoichi Ishikawa; Kazutoshi Horiuchi
Interannual variability of temperature inversions in the subarctic North Pacific
Geophys. Res. Lett., 2006
33, 24
[Reviewed] - Y Ishikawa; T Awaji; N Komori; T Toyoda
Application of sensitivity analysis using an adjoint model for short-range forecasts of the Kuroshio path south of Japan
JOURNAL OF OCEANOGRAPHY, Apr. 2004
60, 2, 293, 301
[Reviewed] - S Masuda; T Awaji; N Sugiura; Y Ishikawa; K Baba; K Horiuchi; N Komori
Improved estimates of the dynamical state of the North Pacific Ocean from a 4 dimensional variational data assimilation
GEOPHYSICAL RESEARCH LETTERS, Aug. 2003
30, 16, 1868
[Reviewed] - Nobumasa Komori; Toshiyuki Awaji; Yoichi Ishikawa; Tsurane Kuragano
Short-range forecast experiments of the Kuroshio path variabilities south of Japan using TOPEX/Poseidon altimetric data
Journal of Geophysical Research: Oceans, 15 Jan. 2003
108, 1, 1, 16 - Toshiyuki Awaji; Shuhei Masuda; Yoichi Ishikawa; Nozomi Sugiura; Takahiro Toyoda; Tomohiro Nakamura
State Estimation of the North Pacific Ocean by a Four-Dimensional Variational Data Assimilation Experiment
Journal of Oceanography, 2003
59, 6, 931, 943 - 石川洋一; 淡路敏之; 豊田隆寛; 杉浦望実; 増田周平; 蒋勤; 小守信正
海洋データ同化からみたブイデータの有効性
海の研究, 12, 321-322, 2003
[Reviewed] - Y Ishikawa; T Awaji; N Komori
Dynamical initialization for the numerical forecasting of ocean surface circulations using a variational assimilation system
JOURNAL OF PHYSICAL OCEANOGRAPHY, 2001
31, 1, 75, 93
[Reviewed] - Yoichi Ishikawa; Toshiyuki Awaji; Kazunori Akitomo
Global surface circulation and its kinetic energy distribution derived from drifting buoys
Journal of Oceanography, Oct. 1997
53, 5, 489, 516 - 石川洋一; 淡路敏之; 秋友和典
海面高度計データと衛星追尾型漂流ブイデータの同時同化による海洋表層循環のデータアシミレーション
生研フォーラム「宇宙からの地球環境モニタリング」第６回論文集, 1996
107, 116
Misc.
- 石川洋一
日本周辺海域の気候変動予測とそのダウンスケーリング
地球環境, Nov. 2024
29, 1
[Reviewed], [Invited]
Lead - 中田 聡史; 馬場 勝寿; 石川 洋一; 齊藤 誠一
Land-sea pathways between snowmelt and fishery production in Funka Bay, Japan
低温科学, 2016
74, 31, 41 - M. A. Balmaseda; F. Hernandez; A. Storto; M. D. Palmer; O. Alves; L. Shi; G. C. Smith; T. Toyoda; M. Valdivieso; B. Barnier; D. Behringer; T. Boyer; Y-S. Chang; G. A. Chepurin; N. Ferry; G. Forget; Y. Fujii; S. Good; S. Guinehut; K. Haines; Y. Ishikawa; S. Keeley; A. Koehl; T. Lee; M. J. Martin; S. Masina; S. Masuda; B. Meyssignac; K. Mogensen; L. Parent; K. A. Peterson; Y. M. Tang; Y. Yin; G. Vernieres; X. Wang; J. Waters; R. Wedd; O. Wang; Y. Xue; M. Chevallier; J-F. Lemieux; F. Dupont; T. Kuragano; M. Kamachi; T. Awaji; A. Caltabiano; K. Wilmer-Becker; F. Gaillard
The Ocean Reanalyses Intercomparison Project (ORA-IP)
JOURNAL OF OPERATIONAL OCEANOGRAPHY, 2015
8, S80, S97 - Satoshi Nakada; Satoshi Nakada; Katsuhisa Baba; Masatoshi Sato; Masafumi Natsuike; Yoichi Ishikawa; Toshiyuki Awaji; Koji Koyamada; Sei Ichi Saitoh
The role of snowmelt runoff on the ocean environment and scallop production in Funka Bay, Japan
Progress in Earth and Planetary Science, 01 Dec. 2014
1 - Kun Zhao; Satoshi Nakada; Naohisa Sakamoto; Koji Koyamada; Chandrajit Bajaj; Yoichi Ishikawa; Toshiyuki Awaji; Teiji In; Sei-Ichi Saitoh
A vasualization for the dynamic behaviors of the mixture of water mass for northwestern pacific near Japan
International Journal of Modeling, Simulation, and Scientific Computing, 2013
4, 1 - 小守信正; 淡路敏之; 石川洋一
日本南岸における黒潮変動予測のためのデータ同化手法の開発 (総特集 黒潮変動予測実験) -- (5章 黒潮変動予測のためのデータ同化)
海洋, 号外, 2004
37, 166, 180 - 淡路敏之; 蒲地政文; 石川洋一; 小守信正
1.3.8. データ同化(1.3. 力学過程・海洋モデリング)(1.海洋物理学)(第2章 我が国の海洋科学の進歩)
海の研究, Oct. 2002
11, 1, 31, 32 - BABA Kinji; AWAJI Toshiyuki; SUGIURA Nozomi; MASUDA Syuhei; JIANG Qin; SHEN Yi Yang; ANNAN James D; ISHIKAWA Yoichi; KOMORI Nobumasa; HATAYAMA Takanori
2405 A data assimilation of climatological global ocean circulation by 4 dimensional Variational Method
設計工学・システム部門講演会講演論文集, 01 Nov. 2001
2001, 11, 221, 222 - 石川洋一; 淡路敏之; 小守信正
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海洋, 2001
33, 2, 76, 82 - 淡路敏之; 石川洋一; 美山透
モデルによる西部熱帯太平洋暖水プールの熱収支解析 (文部省S)
衛星計測による大陸規模の水・熱エネルギーフローの解明 平成8−10年度 最終報告書 海洋班 No.08241103, 1999
57-62 - Yoichi Ishikawa; Tochiyuki Awaji; Kazunori Akitomo; Bo Qiu
Successive correction of the mean sea surface height by the simultaneous assimilation of drifting buoy and altimetric data
Journal of Physical Oceanography, 1996
26, 11, 2381, 2397
