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Impacts of atmospheric disturbances and tidal mixing on biogeochemical cycle and marine ecosystem using an eddy-resolving North Pacific model

Research Project

Project/Area Number 17K05662
Research Category

Grant-in-Aid for Scientific Research (C)

Allocation TypeMulti-year Fund
Section一般
Research Field Meteorology/Physical oceanography/Hydrology
Research InstitutionJapan Agency for Marine-Earth Science and Technology

Principal Investigator

Sasai Yoshikazu  国立研究開発法人海洋研究開発機構, 地球環境部門(地球表層システム研究センター), 主任研究員 (40419130)

Co-Investigator(Kenkyū-buntansha) 佐々木 英治  国立研究開発法人海洋研究開発機構, 付加価値情報創生部門(アプリケーションラボ), 主任研究員 (50359220)
野中 正見  国立研究開発法人海洋研究開発機構, 付加価値情報創生部門(アプリケーションラボ), グループリーダー (90358771)
Project Period (FY) 2017-04-01 – 2022-03-31
Project Status Completed (Fiscal Year 2021)
Budget Amount *help
¥4,420,000 (Direct Cost: ¥3,400,000、Indirect Cost: ¥1,020,000)
Fiscal Year 2019: ¥1,560,000 (Direct Cost: ¥1,200,000、Indirect Cost: ¥360,000)
Fiscal Year 2018: ¥910,000 (Direct Cost: ¥700,000、Indirect Cost: ¥210,000)
Fiscal Year 2017: ¥1,950,000 (Direct Cost: ¥1,500,000、Indirect Cost: ¥450,000)
Keywords植物プランクトン / 生理学 / 光順応モデル / 生物地球化学 / 栄養塩 / 物質循環 / 海洋大循環モデル / 生態系 / 中規模海洋循環 / 大気擾乱 / 潮汐 / 低次生態系モデル / 高解像度海洋大循環モデル / 物資循環 / 海洋生態
Outline of Final Research Achievements

To evaluate the adaptive response of phytoplankton growth to the varying light and nutrient conditions across the North Pacific, we compare modeled phytoplankton biomass and production from a flexible phytoplankton model (FlexPFT), which incorporates photoacclimation and variable C:N:chlorophyll, Chl, to that obtained with an inflexible phytoplankton model (InFlexPFT),which is a typical Nitrate-Phytoplankton-Zooplankton-Detritus (NPZD) type model assuming fixed C:N:Chl ratios (fixed stoichiometry). We apply these two phytoplankton models (FlexPFT and InFlexPFT) in a 3-D eddy-resolving ocean circulation model of the North Pacific. These two models yield different horizontal and vertical distributions of chlorophyll and primary production on observation lines in the North Pacific. It was confirmed that a more realistic distribution can be reproduced by introducing an equation that changes according to the salt environment.

Academic Significance and Societal Importance of the Research Achievements

海洋の中規模現象を再現できる海洋大循環モデルに植物プランクトンの成長速度を固定した従来の低次生態系モデルと最適な海洋環境(光と栄養塩)に適応した植物プランクトンの成長速度を表現できるモデルをそれぞれ組み込みシミュレーションした結果、光と栄養塩環境に応じて変化する植物プランクトンの成長速度を用いたモデル結果が、より現実的な分布を再現できた。数値モデルを用いた海洋環境変化が物質循環・生態系の変動とその機構の維持に与える役割に関する研究は、限られた期間・海域の現場観測データを補完に加え、そのメカニズムを理解することができ、変化する環境に対する海洋物質循環・生態系の応答予測に貢献できる。

Report

(6 results)
  • 2021 Annual Research Report   Final Research Report ( PDF )
  • 2020 Research-status Report
  • 2019 Research-status Report
  • 2018 Research-status Report
  • 2017 Research-status Report
  • Research Products

    (62 results)

All 2022 2021 2020 2019 2018 2017 Other

All Int'l Joint Research (1 results) Journal Article (11 results) (of which Int'l Joint Research: 3 results,  Peer Reviewed: 11 results,  Open Access: 8 results) Presentation (50 results) (of which Int'l Joint Research: 39 results,  Invited: 2 results)

  • [Int'l Joint Research] ICBM/Oldenburg Univ.(ドイツ)

    • Related Report
      2019 Research-status Report
  • [Journal Article] Winter-Spring Phytoplankton Phenology Associated with the Kuroshio Extension Instability2022

    • Author(s)
      Siswanto Eko、Sasai Yoshikazu、Matsumoto Kazuhiko、Honda Makio C.
    • Journal Title

      Remote Sensing

      Volume: 14 Issue: 5 Pages: 1186-1186

    • DOI

      10.3390/rs14051186

    • Related Report
      2021 Annual Research Report
    • Peer Reviewed / Open Access
  • [Journal Article] Interannual Variations of Submesoscale Circulations in the Subtropical Northeastern Pacific2022

    • Author(s)
      Sasaki Hideharu、Qiu Bo、Klein Patrice、Nonaka Masami、Sasai Yoshikazu
    • Journal Title

      Geophysical Research Letters

      Volume: 49 Issue: 7

    • DOI

      10.1029/2021gl097664

    • Related Report
      2021 Annual Research Report
    • Peer Reviewed / Open Access / Int'l Joint Research
  • [Journal Article] The Formation of Subtropical Phytoplankton Blooms Is Dictated by Water Column Stability During Winter and Spring in the Oligotrophic Northwestern North Pacific2021

    • Author(s)
      Matsumoto K.、Sasai Y.、Sasaoka K.、Siswanto E.、Honda M. C.
    • Journal Title

      Journal of Geophysical Research: Oceans

      Volume: 126 Issue: 4

    • DOI

      10.1029/2020jc016864

    • Related Report
      2021 Annual Research Report
    • Peer Reviewed / Open Access
  • [Journal Article] Observations of anticyclonic eddies in the western subarctic North Pacific2021

    • Author(s)
      Dobashi Ryo、Ueno Hiromichi、Okada Yuki、Tanaka Takahiro、Nishioka Jun、Hirawake Toru、Ooki Atushi、Itoh Sachihiko、Hasegawa Daisuke、Sasai Yoshikazu、Sasaki Hideharu、Yasuda Ichiro
    • Journal Title

      Journal of Oceanography

      Volume: 77 Issue: 2 Pages: 229-242

    • DOI

      10.1007/s10872-020-00586-y

    • Related Report
      2020 Research-status Report
    • Peer Reviewed
  • [Journal Article] Rapid water parcel transport across the Kuroshio Extension in the lower thermocline from dissolved oxygen measurements by Seaglider2021

    • Author(s)
      Hosoda Shigeki、Inoue Ryuichiro、Nonaka Masami、Sasaki Hideharu、Sasai Yoshikazu、Hirano Mizue
    • Journal Title

      Progress in Earth and Planetary Science

      Volume: 8 Issue: 1 Pages: 1-19

    • DOI

      10.1186/s40645-021-00406-x

    • Related Report
      2020 Research-status Report
    • Peer Reviewed / Open Access
  • [Journal Article] Interannual to Decadal Variations of Submesoscale Motions around the North Pacific Subtropical Countercurrent2020

    • Author(s)
      Sasaki Hideharu、Qiu Bo、Klein Patrice、Sasai Yoshikazu、Nonaka Masami
    • Journal Title

      Fluids

      Volume: 5 Issue: 3 Pages: 116-116

    • DOI

      10.3390/fluids5030116

    • Related Report
      2020 Research-status Report
    • Peer Reviewed / Open Access / Int'l Joint Research
  • [Journal Article] A global eddying hindcast ocean simulation with OFES22020

    • Author(s)
      Sasaki Hideharu、Kida Shinichiro、Furue Ryo、Aiki Hidenori、Komori Nobumasa、Masumoto Yukio、Miyama Toru、Nonaka Masami、Sasai Yoshikazu、Taguchi Bunmei
    • Journal Title

      Geoscientific Model Development

      Volume: 13 Issue: 7 Pages: 3319-3336

    • DOI

      10.5194/gmd-13-3319-2020

    • NAID

      120007098326

    • Related Report
      2020 Research-status Report
    • Peer Reviewed / Open Access
  • [Journal Article] Contribution of Kuroshio Recirculation to Nutrient Transport Along the Kuroshio South of Japan2019

    • Author(s)
      Guo Xinyu、Hu Yingying、Sasai Yoshikazu
    • Journal Title

      In: Kuroshio Current: Physical, Biogeochemical and Ecosystem Dynamics, Takeyoshi Nagai, Hiroaki Saito, Koji Suzuki, Motomitsu Takahashi (eds.), AGU Geophysical Monograph Series. AGU-Wiley

      Volume: 243 Pages: 127-135

    • DOI

      10.1002/9781119428428.ch7

    • Related Report
      2019 Research-status Report
    • Peer Reviewed
  • [Journal Article] Impact of Ocean Physics on Marine Ecosystems in the Kuroshio and Kuroshio Extension Regions2019

    • Author(s)
      Sasai Yoshikazu、Honda Makio C.、Siswanto Eko、Kato Sami、Uehara Kazuyuki、Sasaki Hideharu、Nonaka Masami
    • Journal Title

      In: Kuroshio Current: Physical, Biogeochemical and Ecosystem Dynamics, Takeyoshi Nagai, Hiroaki Saito, Koji Suzuki, Motomitsu Takahashi (eds.), AGU Geophysical Monograph Series. AGU-Wiley

      Volume: 243 Pages: 175-188

    • DOI

      10.1002/9781119428428.ch11

    • Related Report
      2019 Research-status Report
    • Peer Reviewed
  • [Journal Article] Wind-driven North Pacific Tropical Gyre using high-resolution outputs2019

    • Author(s)
      Kutsuwada, K., A. Kakiuchi, Y. Sasai, H. Sasaki, K, Uehara, and R. Tajima
    • Journal Title

      Journal of Oceanography

      Volume: 75 Issue: 1 Pages: 81-93

    • DOI

      10.1007/s10872-018-0487-8

    • Related Report
      2018 Research-status Report
    • Peer Reviewed / Open Access
  • [Journal Article] Impact of cyclonic eddies and typhoons on biogeochemistry in the oligotrophic ocean based on biogeochemical/physical/meteorological time-series at station KEO2018

    • Author(s)
      Honda, M.C., Y. Sasai, E. Siswanto, A.Kuwano-Yoshida, H. Aiki, and M. F. Cronin
    • Journal Title

      Progress in Earth and Planetary Science

      Volume: 5:42 Issue: 1 Pages: 1-16

    • DOI

      10.1186/s40645-018-0196-3

    • NAID

      120006545196

    • Related Report
      2018 Research-status Report
    • Peer Reviewed / Open Access / Int'l Joint Research
  • [Presentation] Instantaneous acclimation allows computationally efficient modlling of the biogeochemical impacts of plankton ecophysiology2022

    • Author(s)
      Sherwood Lan Smith, Prima Anugerahanti, Onur Kerimoglu, Yoshio Masuda, Yasuhiro Yamanaka, Yoshikzau Sasai
    • Organizer
      Ocean Sciences Meeting 2022
    • Related Report
      2021 Annual Research Report
    • Int'l Joint Research
  • [Presentation] Physiological flexibility of phytoplankton impacts modeled chlorophyll and primary production across the North Pacific2022

    • Author(s)
      Yoshikazu Sasai, Sherwood Lan Smith, Ekos Siswanto, Hidharu Sasaki, Masami Nonaka
    • Organizer
      Ocean Sciences Meeting 2022
    • Related Report
      2021 Annual Research Report
    • Int'l Joint Research
  • [Presentation] Instantaneous acclimation allows computationally efficient modlling of the biogeochemical impacts of plankton ecophysiology2021

    • Author(s)
      Sherwood Lan Smith, Prima Anugerahanti, Onur Kerimoglu, Yoshio Masuda, Yasuhiro Yamanaka, Yoshikzau Sasai
    • Organizer
      JpGU 2021 Annual Meeting
    • Related Report
      2021 Annual Research Report
    • Int'l Joint Research
  • [Presentation] OFES-NPZDモデルにより再現された黒潮続流域における植物プランクトン濃度の十年規模変動2021

    • Author(s)
      東塚知己、笹井義一、佐々木英治、野中正見
    • Organizer
      日本海洋学会2021年度秋季大会
    • Related Report
      2021 Annual Research Report
  • [Presentation] Interannual variations of submesoscale motions in the subtropical Eastern Pacific2021

    • Author(s)
      Hideharu Sasaki, Masami Nonaka, Yoshikzau Sasai
    • Organizer
      International workshop for mid-latitude air-sea interaction: advancing predictive understanding of regional climate variability and change across timescales
    • Related Report
      2021 Annual Research Report
    • Int'l Joint Research
  • [Presentation] 高解像度海洋大循環モデルを用いた海洋循環ばの感度実験2021

    • Author(s)
      轡田邦夫、佐々木英治、笹井義一
    • Organizer
      日本海洋学会2021年度秋季大会
    • Related Report
      2021 Annual Research Report
  • [Presentation] Small water mass transport across the Kuroshio Extension region in the thermocline by Seaglider and BGC Argo floats: Hints of integrated ocean observations2020

    • Author(s)
      Shigeki Hosoda, Ryuichiro Inoue, Masami Nonaka, Hideharu Sasaki, Yoshikazu Sasai, Mizue Hirano
    • Organizer
      JpGU-AGU Joint Meeting 2020:Virtual
    • Related Report
      2020 Research-status Report
    • Int'l Joint Research
  • [Presentation] Small water parcels across the Kuroshio Extension region in the main thermocline detected by Seaglider and BGC Argo floats2020

    • Author(s)
      Shigeki Hosoda, Ryuichiro Inoue, Masami Nonaka, Hideharu Sasaki, Yoshikazu Sasai, Mizue Hirano
    • Organizer
      2020AGU Fall meeting
    • Related Report
      2020 Research-status Report
    • Int'l Joint Research
  • [Presentation] Impacts of Cyclonic Eddy on Phytoplankton Biomass and Spring Bloom Onset Time in the Kuroshio Extension Region2020

    • Author(s)
      Eko Siswanto, Yoshikazu Sasai
    • Organizer
      Ocean Sciences Meeting 2020
    • Related Report
      2019 Research-status Report
    • Int'l Joint Research
  • [Presentation] Seasonal transition of the dominant nitrogen source for phytoplankton reconstructed by determining the nitrogen isotope composition for nitrate, ammonium, and individual amino acids of sinking particles in the Northwestern Pacific2020

    • Author(s)
      Chisato Yoshikawa, N.O. Ogawa, Y. Chikaraishi, A. Makabe, Y. Matsui, Y. Sasai, M. Wakita, M.C. Honda, Y. Mino, M.N. Aita, T. Fujiki, T. Nunoura, N. Harada and N. Ohkouchi
    • Organizer
      Ocean Science Meering 2020
    • Related Report
      2019 Research-status Report
    • Int'l Joint Research
  • [Presentation] Rapid water parcel transport across the Kuroshio Extension in the lower thermocline from dissolved oxygen measurements by Seaglider and BGC Argo floats2020

    • Author(s)
      Shigeki Hosoda, Ryuichiro Inoue, Masami Nonaka, Hideharu Sasaki, Yoshikazu Sasai, Mizue Hirano
    • Organizer
      Ocean Science Meering 2020
    • Related Report
      2019 Research-status Report
    • Int'l Joint Research
  • [Presentation] A global eddying hindcast ocean simulation with OFES22020

    • Author(s)
      Hidehareu Sasaki, Shinichiro Kida, Ryo Furue, Hidenori Aiki, Nobumasa Komori, Yukio Masumoto, Toru Miyama, Masami Nonaka, Yoshikazu Sasai, Bunmei Taguchi
    • Organizer
      Ocean Science Meering 2020
    • Related Report
      2019 Research-status Report
    • Int'l Joint Research
  • [Presentation] Physiological flexibility of phytoplankton impacts modeled chlorophyll and primary production across the North Pacific2020

    • Author(s)
      Yoshikazu Sasai, S.L.Smith, Eko Siswanto, Hideharu Sasaki,Masami Nonaka
    • Organizer
      Ocean Science Meering 2020
    • Related Report
      2019 Research-status Report
    • Int'l Joint Research
  • [Presentation] Impacts of cyclonic eddies on phytoplankton biomass and phenology in the Kuroshio Extension region2019

    • Author(s)
      Eko Siswanto, Yoshikazu Sasai
    • Organizer
      日本地球惑星科学連合2019年大会
    • Related Report
      2019 Research-status Report
    • Int'l Joint Research
  • [Presentation] Modeling variability of 15N stable isotope enrichment within the planktonic food chain2019

    • Author(s)
      Sherwood Lan Smith, Chisato Yoshikawa, Yoshikazu Sasai
    • Organizer
      日本地球惑星科学連合2019年大会
    • Related Report
      2019 Research-status Report
    • Int'l Joint Research
  • [Presentation] Impact of cyclonic eddy on phytoplankton phenology in the Kuroshio Extension region2019

    • Author(s)
      Eko Siswanto, Yoshikazu Sasai
    • Organizer
      2019年度日本海洋学会秋季大会
    • Related Report
      2019 Research-status Report
  • [Presentation] Impact of ocean physics on marine ecosystem in the Kuroshio and Kuroshio Extension regions: A high-resolution coupled physical-biological model study2019

    • Author(s)
      笹井義一、本多牧生、Eko Siswanto、佐々木英治、野中正見、加藤彩愛、植原量行
    • Organizer
      2019年度日本海洋学会秋季大会
    • Related Report
      2019 Research-status Report
  • [Presentation] 亜熱帯反流に伴うサブメソスケール循環の経年から十年規模変動2019

    • Author(s)
      佐々木英治、野中正見、笹井義一
    • Organizer
      2019年度日本海洋学会秋季大会
    • Related Report
      2019 Research-status Report
  • [Presentation] Interannual variability of marine ecosystem in the Kuroshio Extension region2019

    • Author(s)
      Yoshikazu Sasai, Makio Honda, Eko Siswanto, Hideharu Sasaki, Masami Nonaka
    • Organizer
      2019年度名古屋大学宇宙地球環境研究所研究集会
    • Related Report
      2019 Research-status Report
    • Int'l Joint Research
  • [Presentation] Fingerprint of climate change on Indo-Pacific coastal biological production2019

    • Author(s)
      Eko Siswanto, Yoshikazu Sasai
    • Organizer
      Approaches for Hydrospheric-Atmospheric Environmental Studies in Asia-Oceania
    • Related Report
      2019 Research-status Report
    • Int'l Joint Research
  • [Presentation] Impacts of cyclonic eddies on phytoplankton biomass and phenology in the Kuroshio Extension region2019

    • Author(s)
      Eko Siswanto, Yoshikazu Sasai
    • Organizer
      International Ocean Colour Science Meeting 2019
    • Related Report
      2019 Research-status Report
    • Int'l Joint Research
  • [Presentation] 西部北太平洋亜熱帯観測点KEOにおける時系列観測で明らかとなった貧 栄養海域の生物地球化学への 低気圧性渦と台風の影響2019

    • Author(s)
      本多 牧生、笹井 義一、Siswanto Eko、吉田 聡、相木 秀則、Cronin Meghan
    • Organizer
      日本地球惑星科学連合2019年大会
    • Related Report
      2019 Research-status Report
  • [Presentation] 準全球高解像度海洋過去再現シミュレーションOFES22019

    • Author(s)
      佐々木 英治, 古恵 亮, 木田 新一郎, 相木 秀則, 小守 信正, 升本 順夫, 美山 透, 野中 正見, 笹井 義一,田口 文明
    • Organizer
      日本海洋学会 2019年度秋季大会
    • Related Report
      2019 Research-status Report
  • [Presentation] Impact of ocean physics on marine ecosystems in the Kuroshio and Kuroshio Extension regions: A high-resolution coupled physical-biological model study2019

    • Author(s)
      Yoshikazu Sasai, Makio C. Honda, Eko Siswanto, Sami Kato, Kazuyuki Uehara, Hideharu Sasaki and Masami Nonaka
    • Organizer
      The North Pacific Marine Science Organization (PICES) Annual Meeting 2019
    • Related Report
      2019 Research-status Report
    • Int'l Joint Research
  • [Presentation] Physiological flexibility of phytoplankton impacts modeled chlorophyll and primary production across the North Pacific2019

    • Author(s)
      Yoshikazu Sasai, S.L.Smith, Eko Siswanto, Hideharu Sasaki, Masami Nonaka
    • Organizer
      The 7th Asian/16th Korea-Japan Workshop on Ocean Color
    • Related Report
      2019 Research-status Report
    • Int'l Joint Research
  • [Presentation] Modeling seasonal and inter-annual variability of trophic transfer and 15N stable isotope enrichment within the planktonic food chain2019

    • Author(s)
      Sherwood Lan Smith, Yoshikazu Sasai, Chisato Yoshikawa
    • Organizer
      XMAS-IV, Xiamen Symposium on Marine Environmental Sciences
    • Related Report
      2018 Research-status Report
    • Int'l Joint Research
  • [Presentation] Modeling seasonal and inter-annual variability of trophic transfer and 15N stable isotope enrichment within the planktonic food chain2019

    • Author(s)
      Sherwood Lan Smith, Yoshikazu Sasai, Chisato Yoshikawa
    • Organizer
      ASLO 2019 Annual Meeting
    • Related Report
      2018 Research-status Report
    • Int'l Joint Research
  • [Presentation] Impact of ocean physics on marine ecosystems in the Kuroshio and Kuroshio Extension regions2019

    • Author(s)
      Yoshikazu Sasai
    • Organizer
      ASLO 2019 Aquatic Sciences Meeting
    • Related Report
      2018 Research-status Report
    • Int'l Joint Research
  • [Presentation] Challenges in Modeling the Size-Based Dynamics of Plankton Ecosystems2018

    • Author(s)
      S. Lan Smith, Bingzhang Chen, Yoshikazu Sasai, Chisato Yoshikawa, Carmen Garcia, Tetsuichi Fujiki
    • Organizer
      日本地球惑星科学連合2018年大会
    • Related Report
      2018 Research-status Report
    • Int'l Joint Research / Invited
  • [Presentation] Impact of explosive cyclones on the deep ocean in the North Pacific: Simulations and observations2018

    • Author(s)
      Akira YOSHIDA, Hideharu SASAKI, Shigeki HOSODA, Yoshikazu SASAI, Yasumasa MIYAZAWA, Katsufumi SATO, Takuya FUKUOKA, Tomoko NARAZAKI
    • Organizer
      AOGS2018
    • Related Report
      2018 Research-status Report
    • Int'l Joint Research
  • [Presentation] Impacts of eddy variability on phytoplankton dynamics in the Kuroshio Extension region2018

    • Author(s)
      Eko Siswanto, Yoshikazu Sasai
    • Organizer
      PICES-2018 Annual Meeting
    • Related Report
      2018 Research-status Report
    • Int'l Joint Research
  • [Presentation] Modeling seasonal and inter-annual variability of trophic transfer and 15N stable isotope enrichment within the planktonic food chain2018

    • Author(s)
      Sherwood Lan Smith, Yoshikazu Sasai, Chisato Yoshikawa
    • Organizer
      PICES-2018 Annual Meeting
    • Related Report
      2018 Research-status Report
    • Int'l Joint Research
  • [Presentation] Impacts of cyclonic eddy on phytoplankton in the Kuroshio Extension region2018

    • Author(s)
      Eko Siswanto, Yoshikazu Sasai
    • Organizer
      The 6th Asian Workshop on Ocean Color 2018
    • Related Report
      2018 Research-status Report
    • Int'l Joint Research
  • [Presentation] Interannual variability of marine ecosystem in the Kuroshio Extension region2018

    • Author(s)
      Yoshikazu Sasai, Makio C. Honda, Eko Siswanto, Hideharu Sasaki and Masami Nonaka
    • Organizer
      The 6th AWOC/15th KJWOC 2018
    • Related Report
      2018 Research-status Report
    • Int'l Joint Research
  • [Presentation] Impact of explosive cyclones on the deep ocean in the North Pacific: Simulations and observations2018

    • Author(s)
      Akira Yoshida, Hideharu Sasaki, Yoshikazu Sasai, Shigeki Hosoda
    • Organizer
      OCEANS’18 MTS/IEEE Kobe / Techno-Ocean 2018
    • Related Report
      2018 Research-status Report
    • Int'l Joint Research
  • [Presentation] Interannual variability of marine ecosystem in the Kuroshio Extension region2018

    • Author(s)
      Yoshikazu Sasai, Makio Honda, Eko Siswanto, Hideharu Sasaki and Masami Nonaka
    • Organizer
      4th International Symposium The Effects of Climate Change on the World’s Oceans
    • Related Report
      2018 Research-status Report
    • Int'l Joint Research
  • [Presentation] Modeling effects of phytoplankton size diversity on primary production and δ15N2018

    • Author(s)
      Sherwood Lan Smith, Yoshikazu Sasai, Chisato Yoshikawa
    • Organizer
      日本海洋学会2018年度秋季大会
    • Related Report
      2018 Research-status Report
  • [Presentation] Submesoscale dynamics in the Northeastern Subtropical Pacific Ocean2018

    • Author(s)
      Hideharu Sasaki, Patrice Klein, Yoshikazu Sasai, Bo Qiu
    • Organizer
      PICES-2018 Annual Meeting
    • Related Report
      2018 Research-status Report
    • Int'l Joint Research
  • [Presentation] Interannual variability of marine ecosystem in the Kuroshio Extension region2018

    • Author(s)
      Yoshikazu Sasai, Makio C. Honda, Eko Siswanto, Hideharu Sasaki and Masami Nonaka
    • Organizer
      PICES 2018 Annual Meeting
    • Related Report
      2018 Research-status Report
    • Int'l Joint Research
  • [Presentation] Modeling effects of phytoplankton size diversity on seasonal patterns of primary production and δ15N stable isotope ratios2018

    • Author(s)
      Yoshikazu Sasai, S. Lan Smith, Chisato Yoshikawa
    • Organizer
      Ocean Science Meeting 2018
    • Related Report
      2017 Research-status Report
    • Int'l Joint Research
  • [Presentation] Mechanism of nutrient supply: Cyclonic eddy and biological pump in the oligotrophic ocean based on biogeochemical/physical/meteorological time-series at station KEO2018

    • Author(s)
      Makio C. Honda, Yoshikazu Sasai, Eko Siswanto, Akira Kuwano-Yoshida, Meghan F. Cronin
    • Organizer
      Ocean Science Meeting 2018
    • Related Report
      2017 Research-status Report
    • Int'l Joint Research
  • [Presentation] Sensitivity of tidal mixing parameterization in quasi-global high-resolution oceanic simulation2018

    • Author(s)
      Hideharu Sasaki , Shinichiro Kida , Hidenori Aiki , Nobumasa Komori, Ryo Furue , Toru Miyama , Bunmei Taguchi, Yoshikazu Sasai , Masami Nonaka, Yukio Masumoto
    • Organizer
      Ocean Science Meeting 2018
    • Related Report
      2017 Research-status Report
    • Int'l Joint Research
  • [Presentation] Wind-driven and intrinsic interannual variability in the Kuroshio Extension jet and its eddy activities2018

    • Author(s)
      Masami Nonaka, Hideharu Sasaki, Niklas Schneider
    • Organizer
      Ocean Science Meeting 2018
    • Related Report
      2017 Research-status Report
    • Int'l Joint Research
  • [Presentation] Impact of physiological flexibility of phytoplankton on modeled primary production in the North Pacific Ocean2017

    • Author(s)
      Yoshikazu Sasai, S. Lan Smith, and Hideharu Sasaki
    • Organizer
      DynaTrait international conference
    • Related Report
      2017 Research-status Report
    • Int'l Joint Research
  • [Presentation] Study of Missing Nutrients Source in the oligotrophic ocean based on time-series biogeochemical/physical/meteorological observation at station KEO2017

    • Author(s)
      Makio C. Honda, Eko Siswanto, Yoshikazu Sasai, Akira Kuwano-Yoshida, Meghan Cronin
    • Organizer
      ESSAS
    • Related Report
      2017 Research-status Report
    • Int'l Joint Research
  • [Presentation] 北西部北太平洋亜熱帯海域における栄養塩のミッシングソース2017

    • Author(s)
      Makio Honda, Yoshikazu Sasai, Eko Siswanto, Akira Yoshida, Meghan Cronin
    • Organizer
      2017日本海洋学会秋季大会
    • Related Report
      2017 Research-status Report
  • [Presentation] Impact of Cyclonic Eddies on Biogeochemistry in the Oligotrophic ocean based on Biogeochemical / Physical / Meteorological time-series at station KEO2017

    • Author(s)
      Makio Honda, Yoshikazu Sasai, Eko Siswanto, Akira Kuwano-Yoshida, Cronin Meghan
    • Organizer
      Ocean Carbon Hot Spot Workshop
    • Related Report
      2017 Research-status Report
    • Int'l Joint Research
  • [Presentation] 準全球高解像度海洋シミュレーションOFES2 -潮汐混合パラメタリゼーションの感度実験-2017

    • Author(s)
      佐々木 英治・木田 新一郎・相木 秀則・小守 信正・古恵 亮・美山 透・田口 文明・笹井 義一・野中 正見・升本 順夫
    • Organizer
      2017日本海洋学会秋季大会
    • Related Report
      2017 Research-status Report
  • [Presentation] 黒潮続流域における渦活動経年変動の潜在的予測可能性2017

    • Author(s)
      野中正見, 佐々木英治, N. Schneider
    • Organizer
      2017日本海洋学会秋季大会
    • Related Report
      2017 Research-status Report
    • Invited
  • [Presentation] Wind-driven and intrinsic interannual variability in the Kuroshio Extension jet and its eddy activities2017

    • Author(s)
      Masami Nonaka, Hideharu Sasaki, Niklas Schneider
    • Organizer
      PICES-2017 Annual Meeting
    • Related Report
      2017 Research-status Report
    • Int'l Joint Research

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Published: 2017-04-28   Modified: 2023-01-30  

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