JAMSTEC Researchers Database

Last update :2022/08/18

  • Hajime Kawakami
Department
Research Institute for Value-Added-Information Generation (VAiG) Center for Earth Information Science and Technology (CEIST) Research Data Publish Technology Group Deputy Group Leader
Career
Senior Engineer

Profile

Speciality
Chemical Oceanography, Biogeochemistry
Society
The Oceanographic Society of Japan
HP
https://researchmap.jp/hajime_kawakami
External references
http://ebcrpa.jamstec.go.jp/k2s1/index.html
http://hibiki.blue.coocan.jp/index.html

Research Achievement

Peer reviewed publications (Belonging to JAMSTEC)

  • Yoshihisa Mino , Chiho Sukigara , Makio Honda, Hajime Kawakami, Masahide Wakita , Kosei Sasaoka, Chisato Yoshikawa , Osamu Abe, John Kaiser, katsunori Kimoto, Minoru Kitamura, Tetsuichi Fujiki, Kazuhiko Matsumoto, Toshiro. Saino. Seasonal and Interannual Variations in Nitrogen Availability and Particle Export in the Northwestern North Pacific Subtropical Gyre. JOURNAL OF GEOPHYSICAL RESEARCH - Oceans, 2020, 125, 5, doi: 10.1029/2019JC015600
  • Mino Yoshihisa, Sukigara Chiho, Honda Makio, Kawakami Hajime, Wakita Masahide, Sasaoka Kousei, Yoshikawa Chisato, Abe Osamu, Kaiser J, Kimoto Katsunori, Kitamura Minoru, Fujiki Tetsuichi, Matsumoto Kazuhiko, Saino Toshirou. Seasonal and interannual variations in nitrogen availability and particle export in the northwestern North Pacific subtropical gyre. JOURNAL OF GEOPHYSICAL RESEARCH - Oceans, 2020, 125, 5, doi: 10.1029/2019JC015600
  • Chiho Sukigaraa,Yoshihisa Mino, Hajime Kawakami, Makio C. Honda, Tetsuichi Fujiki, Kazuhiko Matsumoto, Masahide Wakita, Toshiro Saino. Sinking dynamics of particulate matter in the subarctic and subtropical regions of the western North Pacific. DEEP-SEA RESEARCH PART I-OCEANOGRAPHIC RESEARCH PAPERS, 2018, 144, p. 17-27, doi: 10.1016/j.dsr.2018.11.004
  • Mario Uchimiya,Hideki Fukuda,Masahide Wakita,Minoru Kitamura,Hajime Kawakami, Makio C. Honda,Hiroshi Ogawa,Toshi Nagata. Balancing organic carbon supply and consumption in the ocean’s interior: Evidence from repeated biogeochemical observations conducted in the subarctic and subtropical western North Pacific. LIMNOLOGY AND OCEANOGRAPHY, 2018, 63, 5, p. 2015-2027, doi: 10.1002/lno.10821
  • 高橋直樹 ・山下浩之 ・大島光春 ・森慎一 ・藤岡換太郎 ・廣瀬重之 ・川上創 ・藤井友紀子 ・平田大二・柴田健一郎・野崎 篤・根本卓・富永早希・岩瀬成知・小味亮介・松村哲. 相模湾中央部相模海丘および伊豆半島南方沖石廊海底谷における海底地形・地質の目視観察 -ディープ・トウによるYK14-22 次航海調査報告-. 神奈川県立博物館研究報告(自然科学), 2018, 47, p. 7-21
  • Makio C. Honda , M. Wakita , K. Matsumoto , T. Fujiki , E. Siswanto , K. Sasaoka , H. Kawakami , Y. Mino , C. Sukigara , M. Kitamura , Y. Sasai , S. L. Smith , T. Hashioka , C. Yoshikawa , K. Kimoto , S. Watanabe , T. Kobari , T. Nagata , K. Hamasaki , R. Kaneko , M. Uchimiya , H. Fukuda , O. Abe , Toshiro Saino. Comparison of carbon cycle between the western Pacific subarctic and subtropical time-series stations: highlights of the K2S1 project. JOURNAL OF OCEANOGRAPHY, 2017, doi: 10.1007/s10872-017-0423-3
  • Minoru Kitamuraa*, Makio C. Hondaa, Yasunori Hamajimab, Yuichiro Kumamotoa, Michio Aoyamac, Hajime Kawakamia, Tatsuo Aonod, Miho Fukudad, and Yoshihisa Minoe. Temporal changes in radiocesium contamination derived from the Fukushima Dai-ichi Nuclear Power Plant accident in oceanic zooplankton in the western North Pacific. JOURNAL OF ENVIRONMENTAL RADIOACTIVITY, 2017, 172, p. 163-172, doi: 10.1016/j.jenvrad.2017.03.024
  • Mino Yoshihisa, Sukigara Chiho, Honda Makio C., Kawakami Hajime, Matsumoto Kazuhiko, Wakita Masahide, Kitamura Minoru, Fujiki Tetsuichi, Sasaoka Kosei, Abe Osamu, Kaiser Jan, Saino Toshiro. Seasonal variations in the nitrogen isotopic composition of settling particles at station K2 in the western subarctic North Pacific. Journal of Oceanography, 2016, 72, 6, p. 819-836
  • M. WAKITA, Makio HONDA, Kazuhiko MATSUMOTO, T. FUJIKI, H. KAWAKAMI, S. YASUNAKA, Yoshikazu. SASAI, C. SUKIGARA, M. UCHIMIYA, Minoru KITAMURA, T. KOBARI, Y. MINO, A. NAGANO, Shuichi WATANABE, T. SAINO. Biological organic carbon export estimated from the annual carbon budget observed in the surface waters of the western subarctic and subtropical North Pacific Ocean from 2004 to 2013. Journal of Oceanography, 2016, doi: DOI 10.1007/s10872-016-0379-8
  • Ken O. Buesseler, Chris German, Makio Honda, Shigeyoshi Otosaka, Erin E. Black, Hajime Kawakami, Steve Manganini, and Steven M. Pike. Tracking the fate of particle associated Fukushima Daiichi cesium in the ocean off Japan. Environmental Science and Technology, 2015, 49, p. 9807-9816, doi: 10.1021/acs.est.5b02635
  • Hajime Kawakami; Makio Honda; Kazuhiko Matsumoto; Masahide Wakita; Minoru Kitamura; Tetsuichi Fujiki; Shuichi Watanabe. POC fluxes estimated from 234Th in late spring-early summer in the western subarctic North Pacific. Journal of Oceanography, 2015, 71, 3, p. 311-324, doi: 10.1007/s10872-015-0290-8
  • Makio C. Honda, Hajime Kawakami, Kazuhiko Matsumoto, Masahide Wakita, Tetsuichi Fujiki, Yoshihisa Mino, Chiho Sukigara, Toru Kobari, Mario Uchimiya , Ryo Kaneko, Toshiro Saino. Comparison of sinking particles in the upper 200 m between subarctic station K2 and subtropical station S1 based on drifting sediment trap experiments. Journal of Oceanography, 2015, doi: 10.1007/s10872-015-0280-x
  • Kazuhiko Matsumoto, Makio C. Honda, Kosei Sasaoka, Masahide Wakita, Hajime Kawakami, and Shuichi Watanabe. Seasonal variability of primary production and phytoplankton biomass in the western Pacific subarctic gyre: Control by light availability within the mixed layer. Journal of Geophysical Research: Oceans, 2014, 119, 9, p. 6523-6534, doi: 10.1002/2014JC009982
  • Hajime Kawakami; Makio C. Honda; Shuichi Watanabe; Toshiro Sino. Time-series observations of 210Po and 210Pb radioactivity in the western North Pacific.. Journal of Radioanalytical and Nuclear Chemistry, 2014, 301, 2, p. 461-468, doi: 10.1007/s10967-014-3141-y
  • Makio C. Honda, Hajime Kawakami. Sinking velocity of particulate radiocesium in the northwestern North Pacific. Geophysical Research Letters, 2014, 41, p. 3959-3965, doi: 10.1002/2014GL060126
  • Tetsuichi FUJIKI, Kazuhiko MATSUMOTO, Yoshihisa MINO, Kosei SASAOKA, Masahide WAKITA, Hajime KAWAKAMI, Makio C. HONDA, Shuichi WATANABE and Toshiro SAINO.. The seasonal cycle of phytoplankton community structure and photo-physiological state in the western subarctic gyre of the North Pacific. Limnology and Oceanography, 2014, 59, 3, p. 887-900
  • M. Wakita, S. Watanabe, M. Honda, A. Nagano, K. Kimoto, K. Matsumoto, H. Kawakami, T. Fujiki, M. Kitamura, K. Sasaki, K. Sasaoka, Y. Nakano and A. Murata. Ocean acidification from 1997 to 2011 in the subarctic western North Pacific Ocean. Biogeosciences, 2013, 10, p. 7817-7827, doi: 10.5194/bg-10-7817-2013
  • KITAMURA MINORU , KUMAMOTO YUICHIRO , KAWAKAMI HAJIME , Cruz Eric C. , FUJIKURA KATSUNORI. Horizontal distribution of Fukushima-derived radiocesium in zooplankton in the northwestern Pacific Ocean. Biogeosciences, 2013, 10, p. 5729-5738
  • T. Kobari, M. Kitamura, M. Minowa, H. Isami, H. Akamatsu, H. Kawakami, K. Matsumoto, M. Wakita, and M. C. Honda. Impacts of the wintertime mesozooplankton community to downward carbon flux in the subarctic and subtropical Pacific Oceans. Deep-Sea Research I, 2013, 81, p. 78-88
  • HONDA MAKIO , KAWAKAMI HAJIME, WATANABE SHUICHI , SAINO TOSHIRO. Fukushima-derived radiocesium in western North Pacific sediment trap. Biogeosciences, 2013, 10, p. 3525-3534, doi: 10.5194/bg-10-3525-2013
  • M. Wakita, S. Watanabe, M. Honda, A. Nagano, K. Kimoto, K. Matsumoto, H. Kawakami, T. Fujiki, M. Kitamura, K. Sasaki, K. Sasaoka, Y. Nakano and A. Murata. Ocean acidification from 1997 to 2011 in the subarctic western North Pacific Ocean. Biogeosciences Discussions, 2013, 10, p. 8231-8311, doi: 10.5194/bgd-10-8283-2013
  • Fukuda M., Harada N., Sato M., Lange C.B., Ahagon N., Kawakami H., Miyashita W., Pantoja S., Matsumoto T., Motoyama I.. 230Th-normalized fluxes of biogenic components from the central and southernmost Chilean margin over the past 22,000 years. Geochemical Journal, 2013, 47, 2, p. 119-135
  • Harada Naomi, Kawakami Hajime, Fukuda Miho, Miyashita Wataru, Matsumoto Takeshi. 230Th-normalized fluxes of biogenic components from the central Chilean margin during the late Quaternary. Journal of Geology, 2012, 121, 3, p. 555-569
  • 松本和彦、藤木徹一、本多牧生、脇田昌英、川上創、喜多村稔、才野敏郎. ニスキン採水器内部のニトリルゴム製Oリングによる一次生産阻害. JAMSTEC Report of Research and Development, 2012, 14, p. 17-25
  • Makio C. Honda,Tatsuo Aono, Michio Aoyama, Yasunori Hamajima, Hajime Kawakami, Minoru Kitamura, Yukio Masumoto, Yasumasa Miyazawa, Masayuki Takigawa, Toshiro Saino. Dispersion of artificial caesium-134 and -137 in the western North Pacific one month after the Fukushima accident. Geochemical Journal, 2012, 46, 1, p. e1-e9
  • HONDA MAKIO(Research Institute for Global Change (RIGC)) , AONO TATSUO(National Institute of Radiological Sciences) , AOYAMA MICHIO(気象研究所) , HAMAJIMA YASUNORI(Kanazawa University) , KAWAKAMI HAJIME(Mutsu Institute for Oceanography (MIO)) , KITAMURA MINORU(Institute of Biogeosciences (BioGeos)) , MASUMOTO YUKIO(Research Institute for Global Change (RIGC)) , MIYAZAWA YASUMASA(Research Institute for Global Change (RIGC)) , TAKIGAWA MASAYUKI(Research Institute for Global Change (RIGC)) , SAINO TOSHIRO(Research Institute for Global Change (RIGC)). Dispersion of artificial caesium-134 and -137 in the western North Pacific one month after the Fukushima accident. Geochemical Journal, 2012, 46, p. e1-e9
  • 重光 雅仁,渡辺 豊 , 山中 康弘 , 川上 創 , 本多 牧生. Relationship between sinking organic matter and minerals in the shallow zone of the Western Subarctic Pacific. Journal of Oceanography, 2010, 66, p. 697-708
  • Hajime Kawakami, Makio Honda, Kazuhiko Matsumoto, Tetsuichi Fujiki, Shuichi Watanabe. East-west distribution of nutrients and dissolved inorganic carbon in the northern North Pacific in autumn.. The Open Oceanography Journal, 2010, 4, p. 99-106
  • Hajime Kawakami, Makio Honda, Kazuhiko Matsumoto, Tetsuichi Fujiki, Shuichi Watanabe. East-west distribution of POC fluxes estimated from 234Th in the northern North Pacific in autumn.. Journal of Oceanography, 2010, 66, 1, p. 71-83
  • Hajime Kawakami. Scavenging of 210Po and 234Th by particulate organic carbon in the surface layer of the northwestern North Pacific Ocean. Far East Journal of Ocean Research, 2009, 2, 2, p. 67-82
  • Hajime Kawakami, Yong-Liang Yang, Masashi Kusakabe. Distributions of 210Po and 210Pb radioactivity in the intermediate layer of the northwestern North Pacific. Journal of Radioanalytical and Nuclear Chemistry, 2009, 279, 2, p. 561-566
  • Hajime Kawakami, Masashi Kusakabe. Surface water mixing estimated from 228Ra and 226Ra in the northwestern North Pacific. Journal of Environmental Radioactivity, 2008, 99, 8, p. 1335-1340
  • Hajime Kawakami, Makio Honda, Masahide Wakita, Shuichi Watanabe. Time-series observation of dissolved inorganic carbon and nutrients in the northwestern North Pacific. Journal of Oceanography, 2007, 63, 6, p. 967-982
  • Hajime Kawakami, Makio Honda. Time-series observation of POC fluxes estimated from 234Th in the northwestern North Pacific. Deep-Sea Research Part I, 2007, 54, 7, p. 1070-1090
  • 川上 創,Yang Young-Liang , 日下部 正志. 北西部北太平洋中層における210Po及び210Pbの分布. Proceedings of the sixth workshop on Environmental Radioactivity, 2005, 2005-4, p. 68-76
  • Hajime Kawakami, Yong-Liang Yang, Makio Honda, Masashi Kusakabe. Particulate organic carbon fluxes estimated from 234Th deficiency in winters and springs in the northwestern North Pacific. GEOCHEMICAL JOURNAL, 2004, p. 581-592

Invited oral presentation(Belonging to JAMSTEC)

  • 生物学、化学観測結果を統合した 西部北太平洋観測定点K2、S1における炭素循環像. 日本海洋学会2016年度秋季大会, 2016

oral presentation(Belonging to JAMSTEC)

  • 永木晴美・澄川あゆみ・坂本雅子・徳長航・末吉惣一郎・川上創・菱木美和・齊藤千鶴. 深海MBESデータ処理への自動ノイズ除去機能「CARIS Mira AI」の導入. 海洋調査技術学会第33回研究成果発表会, 2021
  • 本多 牧生, 脇田 昌英, 松本 和彦, 川上 創, 喜多村 稔, 小針 統, 内宮 万里央. Resuspension and lateral transport of radiologically-contaminated seafloor sediment off Fukushima daiichi nuclear power plant. Goldschmidt2016, 2016
  • 三野義尚、鋤柄千穂、川上創、本多牧生、松本和彦、脇田昌英、喜多村稔、藤木徹一、笹岡晃征、阿部理、カイザー ジャン. 西部北太平洋亜寒帯循環域における沈降粒子の窒素安定同位体比の季節変化. 日本地球惑星科学連合2016年大会, 2016
  • 本多牧生、Ken O Buesseler,Christopher German, 乙坂重嘉、Erin Black,川上創、Steven J. Manganini, Steven Pike. 福島第一原子力発電所事故由来の放射性セシウムが付着した 福島沖海底堆積物の再懸濁と水平輸送. 日本海洋学会2016年春季大会, 2016
  • Ken O. Buesseler・Christopher R. German・本多牧生・乙坂重嘉・Erin E. Black・ 川上創・Steven J. Manganini・Steven M. Pike. 福島第一原子力発電所事故由来の放射性セシウムが付着した 福島沖海底堆積物の再懸濁と水平輸送. 日本海洋学会2016年春季大会, 2016
  • 本多牧生、Ken Buesseler, Cris German, 乙坂重嘉、Erin Black、川上創、Steven Manganini, Steven Pike. 福島第一原子力発電所事故由来の放射性セシウムが付着した 福島沖海底堆積物の再懸濁と水平輸送. 日本海洋学会2016年春季大会, 2016
  • 福島第一原子力発電所事故由来の放射性セシウムが付着した 福島沖海底堆積物の再懸濁と水平輸送. 日本海洋学会2016年春季大会, 2016
  • M. Kitamura, M.C. Honda, Y. Kumamoto, H. Kawakami, Y. Hamajima, M. Aoyama, T. Aono and M. Fukuda. Fukushima-derived radiocesium in oceanic zooplankton. ESSAS 2016, 2016
  • Makio Honda, Hajime Kawakami, Kazuhiko Matsumoto, Eko Siswanto. Decadal change in biogenic materials’ flux in the North Pacific Western Subarctic Gyre based on the trend analysis of time-series sediment trap data between 1998-2014. ESSAS2016, 2016

Poster presentation(Belonging to JAMSTEC)

  • Kana Nagashima, Hajime Kawakami, Koji Sugie, Tetsuichi Fujiki, Yoko Iwamoto, Maki Noguchi. Seasonal Asian dust transport to the western subarctic North Pacific based on the Cathodoluminescence analysis of single quartz grains. PICES 2021 virtual Annual meeting, 2021
  • 長島 佳菜, 川上 創,杉江 恒二,藤木 徹一,野口 真希,本多 牧生,岩本 洋子. 個別石英粒子のカソードルミネッセンス分析に基づく北太平洋亜寒帯域へのダスト輸送量・季節性の解明. 日本地球化学会第68回オンライン年会, 2021
  • 富山 隆將、佐藤 孝子、福田 和代、川上 創、伊藤 誠、齊藤 千鶴. 観測航海のデータ・サンプル管理:ボヤキからキヅキへ [AOS19-P03]. 日本地球惑星科学連合2021年大会, 2021
  • Kazuyo Fukuda, Hajime Kawakami, Hiroki Horikawa, Tomoki Sasaki, Takako Sato, Takayuki Tomiyama, Makoto Ito, Yasumi Toyoda, Hideaki Saito, Chizuru Saito. Improving the Reusability of Data and Sample Obtained JAMSTEC's Research Vessels and Submersibles (https://doi.org/10.1002/essoar.10503966.1). JpGU-AGU Joint Meeting 2020, 2020
  • Kazuyo Fukuda, Hajime Kawakami, Tomoki Sasaki, Hiroki Horikawa, Hideaki Saito, Chizuru Saito, Akira Sonoda. Current status of minting DOIs for research data in JAMSTEC. JpGU2019, 2019
  • Yoshihisa MINO, Chiho SUKIGARA, Makio C. HONDA, Hajime KAWAKAMI, Tetsuichi FUJIKI, Minoru KITAMURA, and Masahide WAKITA. Seasonal and interannual variations in the upper layer nitrogen availability assessed by nitrogen isotopic compositions of settling particles in the western subtropical North Pacific. 2019 Aquatic Sciences Meeting, 2019
  • Yoshihisa MINO, Chiho SUKIGARA, Makio C. HONDA, Hajime KAWAKAMI, Tetsuichi FUJIKI, Minoru KITAMURA, Naomi HARADA and Masahide WAKITA. Seasonal and interannual variations in the upper layer nitrogen availability and particles export in the western subtropical North Pacific. 2nd International Symposium “Ocean Mixing Processes: Impact on Biogeochemistry, Climate and Ecosystem”, 2018
  • M. WAKITA, Makio HONDA, Kazuhiko MATSUMOTO, T. FUJIKI, H. KAWAKAMI, S. YASUNAKA, Yoshikazu. SASAI, C. SUKIGARA, M. UCHIMIYA, Minoru KITAMURA, T. KOBARI, Y. MINO, A. NAGANO, Shuichi WATANABE, T. SAINO. 混合層の炭素収支から見積もられた西部北太平洋亜寒帯域・亜熱帯域における有機炭素の輸送フラックス. 日本海洋学会 2016年度秋季大会, 2016
  • M. WAKITA, Makio HONDA, Kazuhiko MATSUMOTO, T. FUJIKI, H. KAWAKAMI, S. YASUNAKA, Yoshikazu. SASAI, C. SUKIGARA, M. UCHIMIYA, Minoru KITAMURA, T. KOBARI, Y. MINO, A. NAGANO, Shuichi WATANABE, T. SAINO. Annual biological organic carbon export estimated from the annual carbon budget observed in the surface waters of the western subarctic and subtropical North Pacific Ocean. Ocean Science Meeting 2016, 2016

External fund

KAKENHI (Grants-in- Aid for Scientific Research)

  • 2010-2012 若手研究(B) 「放射性核種を用いた海洋中層における有機炭素粒子沈降量の見積り」 機関代表者

Commissioned Research

  • 2011-2012 戦略的国際科学技術協力推進事業 「沈降粒子による人工放射性核種の海洋内輸送に関する調査研究」 参加者

Collaborative research

2012Fiscal year

  • 海洋における生物起源粒子フラックス推定法の高精度化に関する研究

Contributions

  • 2015/10-2015/11 内閣官房 総合海洋政策本部事務局が発行した青少年向けパンフレット「海の未来-海洋基本計画に基づく政府の取組み-」に、「海洋で活躍している方々から皆さんへのメッセージ」を寄稿した。

Press

Newspaper

  • 2012/04/04 読売新聞 「福島沖 海底 セシウム拡散進まず 土に蓄積、食物連鎖」