yamashita youhei 山下洋平

… Alternative Names

YAMASHITA Yohei 山下洋平

山下洋平ヤマシタヨウヘイ

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Researcher Number	50432224
Other IDs
External Links
Affiliation (Current)	2025: 北海道大学, 地球環境科学研究院, 准教授
Affiliation (based on the past Project Information) *help	2016 – 2025: 北海道大学, 地球環境科学研究院, 准教授 2011 – 2016: 北海道大学, 地球環境科学研究科(研究院), 准教授 2010 – 2012: 北海道大学, 大学院・地球環境科学研究院, 准教授 2007: 名大, 環境学研究科, 研究員 2006: 名大, 研究員
Review Section/Research Field	Principal Investigator Basic Section 63010:Environmental dynamic analysis-related / Environmental dynamic analysis / Environmental dynamic analysis / Geochemistry/Astrochemistry / Medium-sized Section 63:Environmental analyses and evaluation and related fields Except Principal Investigator Basic Section 63010:Environmental dynamic analysis-related / Environmental dynamic analysis / Transformative Research Areas, Section (IV) / Broad Section K / Basic Section 63040:Environmental impact assessment-related / Complex systems / Geochemistry/Astrochemistry
Keywords	Principal Investigator 溶存有機物 / 生物地球化学 / 海洋科学 / 海洋 / 炭素循環 / 燃焼起源有機物 / 海洋炭素循環 / 熱成有機物 / 難分解性有機物 / 海洋深層 … More / 北太平洋中層水 / 溶存鉄 / 微生物炭素ポンプ / 地球化学 / 生物学的分解性 … More Except Principal Investigator 溶存有機物 / 窒素循環 / 海洋大気エアロゾル / 有機態窒素 / 栄養塩 / タイガ林 / 炭素循環 / 植物プランクトン / 亜寒帯海域 / 生物生産 / 栄養物質交換 / 亜寒帯外洋域 / 沿岸域 / 珪藻 / 北太平洋 / 化学的プロパティ / ケイ素 / 鉄 / 極域 / 揮発性有機ガス / 揮発性ガス / オゾン / 結氷実験 / 低温化学 / 低温環境 / 室内実験 / ブロモホルム / 海氷 / 有機臭素ガス / 混合 / 三陸沖 / 水塊分類 / 水塊指標 / 光吸収・蛍光 / 有色溶存有機物 / 水塊混合 / 基礎生産 / 蛍光 / 光吸収 / 水塊 / FDOM / CDOM / シアノバクテリア / 有機エアロゾル / 海洋窒素固定 / アンモニア / 反応性窒素 / 窒素固定生物 / 大気エアロゾル / 雷放電 / 年輪同位体比 / アロケーション / タイガ-草原境界 / 酸素安定同位体比 / 炭素安定同位体比 / 年輪 / 土壌水分 / 年輪同位体 / モンゴル / リン / 窒素 / 海洋生態系 / 生物地球化学 / 海洋区系 / 有機物 / プランクトン / 物質循環 / 海洋生態 / 地球科学 / 海洋科学 / 地理学 / 新海洋像 / 生物地球科学 / 地理 / 生態系サービス / 溶存腐食物質 / 炭酸系 / 生態系 / 太平洋 / 生元素 / 温暖化 / 水同位体比 / メタン / 炭素同位体 / 安定同位体 / シベリア / 水循環 / ツンドラ / タイガ / 北方林 / 永久凍土 Less

陸域で生成される超難分解な燃焼起源有機物の海洋への移行および埋没過程の定量評価Principal Investigator
- Principal Investigator
  
  山下洋平
- Project Period (FY)
  2025 – 2028
- Research Category
  
  Grant-in-Aid for Scientific Research (A)
- Review Section
  
  Medium-sized Section 63:Environmental analyses and evaluation and related fields
- Research Institution
  Hokkaido University
Elucidation of microbial factors that control the amount and physicochemical properties of atmospheric organic nitrogen aerosols in the subarctic ocean
- Principal Investigator
  
  宮崎雄三
- Project Period (FY)
  2023 – 2025
- Research Category
  
  Grant-in-Aid for Scientific Research (B)
- Review Section
  
  Basic Section 63010:Environmental dynamic analysis-related
- Research Institution
  Hokkaido University
Material exchange between coastal area and the subarctic North Pacific and biological production
- Principal Investigator
  
  西岡純
- Project Period (FY)
  2022 – 2026
- Research Category
  
  Grant-in-Aid for Transformative Research Areas (A)
- Review Section
  
  Transformative Research Areas, Section (IV)
- Research Institution
  Hokkaido University
海洋に存在する熱成有機物のミッシングソースの解明Principal Investigator
- Principal Investigator
  
  山下洋平
- Project Period (FY)
  2022 – 2025
- Research Category
  
  Grant-in-Aid for Scientific Research (B)
- Review Section
  
  Basic Section 63010:Environmental dynamic analysis-related
- Research Institution
  Hokkaido University
Formation of water nutritional property including iron and silicate at the termination of global ocean conveyor belt
- Principal Investigator
  
  西岡純
- Project Period (FY)
  2021 – 2025
- Research Category
  
  Grant-in-Aid for Scientific Research (S)
- Review Section
  
  Broad Section K
- Research Institution
  Hokkaido University
Clarification of the phenomenon for high concentrations of brominated organic gases found on the surface of sea ice through laboratory chamber experiments
- Principal Investigator
  
  Nomura Daiki
- Project Period (FY)
  2020 – 2022
- Research Category
  
  Grant-in-Aid for Scientific Research (B)
- Review Section
  
  Basic Section 63040:Environmental impact assessment-related
- Research Institution
  Hokkaido University
Organic nitrogen aerosol in the marine atmosphere: Which factors control the amount of organic nitrogen in marine microbial activity?
- Principal Investigator
  
  Miyazaki Yuzo
- Project Period (FY)
  2019 – 2021
- Research Category
  
  Grant-in-Aid for Scientific Research (B)
- Review Section
  
  Basic Section 63010:Environmental dynamic analysis-related
- Research Institution
  Hokkaido University
Water mass structure and primary productivity in the sub-Arctic seas revealed from dissolved organic matter and optical properties
- Principal Investigator
  
  Hirawake Toru
- Project Period (FY)
  2019 – 2022
- Research Category
  
  Grant-in-Aid for Scientific Research (B)
- Review Section
  
  Basic Section 63010:Environmental dynamic analysis-related
- Research Institution
  National Institute of Polar Research
  Hokkaido University
Removal of recalcitrant dissolved black carbon from the deep ocean.Principal Investigator
- Principal Investigator
  
  Youhei Yamashita
- Project Period (FY)
  2019 – 2022
- Research Category
  
  Grant-in-Aid for Scientific Research (B)
- Review Section
  
  Basic Section 63010:Environmental dynamic analysis-related
- Research Institution
  Hokkaido University
北太平洋中層水により長距離輸送される溶存鉄の起源と化学形態の解明Principal Investigator
- Principal Investigator
  
  山下洋平
- Project Period (FY)
  2018 – 2019
- Research Category
  
  Grant-in-Aid for Scientific Research on Innovative Areas (Research in a proposed research area)
- Research Institution
  Hokkaido University
Evaluating the environmental dynamics of dissolved pyrogenic organic matter in the oceanPrincipal Investigator
- Principal Investigator
  
  Youhei Yamashita
- Project Period (FY)
  2016 – 2019
- Research Category
  
  Grant-in-Aid for Scientific Research (B)
- Research Field
  
  Environmental dynamic analysis
- Research Institution
  Hokkaido University
Geochemical cycling induced by lightning to ocean surface
- Principal Investigator
  
  Kameyama Sohiko
- Project Period (FY)
  2015 – 2016
- Research Category
  
  Grant-in-Aid for Challenging Exploratory Research
- Research Field
  
  Environmental dynamic analysis
- Research Institution
  Hokkaido University
Tree ring width, oxygen, carbon and nitrogen isotope analyses for ecosystem change
- Principal Investigator
  
  Sugimoto Atsuko
- Project Period (FY)
  2014 – 2017
- Research Category
  
  Grant-in-Aid for Scientific Research (B)
- Research Field
  
  Environmental dynamic analysis
- Research Institution
  Hokkaido University
Detection of archaeal components in marine dissolved organic matterPrincipal Investigator
- Principal Investigator
  
  YAMASHITA Youhei
- Project Period (FY)
  2013 – 2014
- Research Category
  
  Grant-in-Aid for Challenging Exploratory Research
- Research Field
  
  Environmental dynamic analysis
- Research Institution
  Hokkaido University
New Ocean Provinces from the Geography of Biogenic Elements
- Principal Investigator
  
  SAITO HIROAKI
- Project Period (FY)
  2012 – 2016
- Research Category
  
  Grant-in-Aid for Scientific Research on Innovative Areas (Research in a proposed research area)
- Review Section
  
  Complex systems
- Research Institution
  The University of Tokyo
  Fisheries Research Agency
Evaluation of microbial carbon pump in relation to dynamics of dissolved organic matter pool in the oceanPrincipal Investigator
- Principal Investigator
  
  YAMASHITA Youhei
- Project Period (FY)
  2012 – 2014
- Research Category
  
  Grant-in-Aid for Young Scientists (A)
- Research Field
  
  Environmental dynamic analysis
- Research Institution
  Hokkaido University
Evaluation of distributional patterns of marine humic-like fluorescence with high spatial resolutionPrincipal Investigator
- Principal Investigator
  
  YAMASHITA Youhei
- Project Period (FY)
  2011 – 2012
- Research Category
  
  Grant-in-Aid for Challenging Exploratory Research
- Research Field
  
  Environmental dynamic analysis
- Research Institution
  Hokkaido University
紫外可視分光光度法を用いた海洋溶存有機物中準易分解性成分の定量評価Principal Investigator
- Principal Investigator
  
  山下洋平
- Project Period (FY)
  2010 – 2011
- Research Category
  
  Grant-in-Aid for Research Activity Start-up
- Research Field
  
  Geochemistry/Astrochemistry
- Research Institution
  Hokkaido University
Analysis of ecosystem function of taiga in eastern Siberia
- Principal Investigator
  
  SUGIMOTO Atsuko
- Project Period (FY)
  2009 – 2012
- Research Category
  
  Grant-in-Aid for Scientific Research (B)
- Research Field
  
  Geochemistry/Astrochemistry
- Research Institution
  Hokkaido University
海洋性腐植様物質の化学的特性および時空間変動からの海洋溶存有機物プール動態解明Principal Investigator
- Principal Investigator
  
  山下洋平
- Project Period (FY)
  2006 – 2007
- Research Category
  
  Grant-in-Aid for Young Scientists (B)
- Research Field
  
  Geochemistry/Astrochemistry
- Research Institution
  Nagoya University

[Book] 極域海洋の非生物態有機物動態2016
- Author(s)
  山下洋平
- Publisher
  朝倉書店
- Data Source
  KAKENHI-PLANNED-24121003
[Book] Applications of Excitation Emission Matrix Fluorescence with Parallel Factor Analysis (EEM-PARAFAC) in Assessing Environmental Dynamics of Natural Dissolved Organic Matter (DOM) in Aquatic Environments: A Review2014
- Author(s)
  JAFFE, R., K.M. CAWLEY, and Y. YAMASHITA
- Total Pages
  47
- Publisher
  American Chemical Society
- Data Source
  KAKENHI-PLANNED-24121003
[Book] Advances in the Physicochemical Characterization of Dissolved Organic Matter: Impact on Natural and Engineered Systems2014
- Author(s)
  Jaffe, R., K.M. Cawley, and Y. Yamashita
- Total Pages
  47
- Publisher
  American Chemical Society
- Data Source
  KAKENHI-PROJECT-24681002
[Journal Article] Origin and Transport of Dissolved Organic Matter in the Northwestern Margin of the North Pacific Inferred from Radiocarbon Signatures2024
- Author(s)
  Otosaka, S., Y. Hou, M. Wakita, Y. Yamashita, J. Nishioka, H. Obata, Y. Miyairi, Y. Yokoyama, H. Ogawa
- Journal Title
  
  Journal of Coastal Research
  
  Volume: 116 Issue: sp1 Pages: 181-185
- DOI
  10.2112/jcr-si116-037.1
- Peer Reviewed / Open Access
- Data Source
  KAKENHI-PLANNED-22H05205, KAKENHI-PUBLICLY-23H04815, KAKENHI-PROJECT-23K20393, KAKENHI-PROJECT-23K24982
[Journal Article] The efficiency of the microbial carbon pump as seen from the relationship between apparent oxygen utilization and fluorescent dissolved organic matter2023
- Author(s)
  Xiao, X., Y. Yamashita, M. Gonsior, and N. Jiao
- Journal Title
  
  Progress in Oceanography
  
  Volume: 210 Pages: 102929-102929
- DOI
  10.1016/j.pocean.2022.102929
- Peer Reviewed
- Data Source
  KAKENHI-PLANNED-22H05205, KAKENHI-PROJECT-19H04250
[Journal Article] Hydrothermal-derived black carbon as a source of recalcitrant dissolved organic carbon in the ocean2023
- Author(s)
  Yamashita, Y., Y. Mori, and H. Ogawa
- Journal Title
  
  Science Advances
  
  Volume: - Issue: 6
- DOI
  10.1126/sciadv.ade3807
- Peer Reviewed / Open Access
- Data Source
  KAKENHI-PLANNED-22H05205, KAKENHI-PROJECT-19H04260, KAKENHI-PROJECT-23K24969, KAKENHI-PROJECT-19H05667
[Journal Article] The origin and characteristics of dissolved organic carbon in the highly urbanized coastal waters of Tokyo Bay2023
- Author(s)
  Kubo, A., Y. Yamashita, F. Hashihama, and J. Kanda
- Journal Title
  
  Journal of Oceanography
  
  Volume: - Issue: 3 Pages: 241-252
- DOI
  10.1007/s10872-023-00678-5
- Peer Reviewed
- Data Source
  KAKENHI-PLANNED-22H05205
[Journal Article] Dissolved iron concentration and the solubility inferred by humic-like fluorescent dissolved organic matter in the intermediate water in the North Pacific including the marginal seas2023
- Author(s)
  Yamashita, Y., and J. Nishioka
- Journal Title
  
  Journal of Geophysical Research-Biogeosciences
  
  Volume: - Issue: 3
- DOI
  10.1029/2022jg007159
- Peer Reviewed / Open Access
- Data Source
  KAKENHI-PLANNED-22H05205, KAKENHI-PROJECT-20H05707, KAKENHI-PROJECT-19H04250, KAKENHI-PROJECT-23K24982, KAKENHI-PROJECT-21H05056
[Journal Article] Microbial degradation of various types of dissolved organic matter in aquatic ecosystems and its influencing factors2023
- Author(s)
  Chen, M., J. Hur, J.-D. Gu, and Y. Yamashita
- Journal Title
  
  SCIENCE CHINA Earth Sciences
  
  Volume: 66 Issue: 2 Pages: 169-189
- DOI
  10.1007/s11430-021-9996-1
- Peer Reviewed / Int'l Joint Research
- Data Source
  KAKENHI-PLANNED-22H05205, KAKENHI-PROJECT-23K24969
[Journal Article] Meltwater Discharge From Marine‐Terminating Glaciers Drives Biogeochemical Conditions in a Greenlandic Fjord2022
- Author(s)
  Kanna Naoya、Sugiyama Shin、Ando Takuto、Wang Yefan、Sakuragi Yuta、Hazumi Toya、Matsuno Kohei、Yamaguchi Atsushi、Nishioka Jun、Yamashita Youhei
- Journal Title
  
  Global Biogeochemical Cycles
  
  Volume: 36 Issue: 11 Pages: 007411-007411
- DOI
  10.1029/2022gb007411
- Peer Reviewed / Open Access / Int'l Joint Research
- Data Source
  KAKENHI-PROJECT-20K20573, KAKENHI-PLANNED-22H05205, KAKENHI-PROJECT-20H00186, KAKENHI-PROJECT-22H00374, KAKENHI-PROJECT-20K19949, KAKENHI-PROJECT-23K21227
[Journal Article] Eco-engineering approaches for ocean negative carbon emission2022
- Author(s)
  Zhang, C., T. Shi, J. Liu, Z. He, H. Thomas, H. Dong, B. Rinkevich, Y. Wang, J.-H. Hyun, M. Weinbauer, C., Q. Tu, S. Xie, Y. Yamashita, P. Tishchenko, Q. Chen, R. Zhang, and N. Jiao
- Journal Title
  
  Science Bulletin
  
  Volume: 67
- Peer Reviewed
- Data Source
  KAKENHI-PLANNED-22H05205
[Journal Article] Factors Controlling the Spatial Distribution of Dissolved Organic Matter With Changes in the C/N Ratio From the Upper to Lower Reaches of the Ishikari River, Japan2022
- Author(s)
  Takaki Yuji、Hattori Keisuke、Yamashita Youhei
- Journal Title
  
  Frontiers in Earth Science
  
  Volume: 10 Pages: 826907-826907
- DOI
  10.3389/feart.2022.826907
- Peer Reviewed / Open Access
- Data Source
  KAKENHI-PROJECT-19H04249
[Journal Article] Fate of dissolved black carbon in the deep Pacific Ocean2022
- Author(s)
  Yamashita Youhei、Nakane Motohiro、Mori Yutaro、Nishioka Jun、Ogawa Hiroshi
- Journal Title
  
  Nature Communications
  
  Volume: 13 Issue: 1 Pages: 307-307
- DOI
  10.1038/s41467-022-27954-0
- Peer Reviewed / Open Access
- Data Source
  KAKENHI-PROJECT-19H04249, KAKENHI-PROJECT-19H04260, KAKENHI-PROJECT-19H05667
[Journal Article] Number-size distribution and CCN activity of atmospheric aerosols in the western North Pacific during spring pre-bloom period: Influences of terrestrial and marine sources2022
- Author(s)
  Kawana, K., Y. Miyazaki, Y. Omori, H. Tanimoto, S. Kagami, K. Suzuki, Y. Yamashita, J. Nishioka, Y. Deng, H. Yai, and M. Mochida
- Journal Title
  
  Journal of Geophysical Research: Atmospheres
  
  Volume: 127 Issue: 19
- DOI
  10.1029/2022jd036690
- Peer Reviewed
- Data Source
  KAKENHI-PLANNED-22H05205, KAKENHI-PROJECT-20K12145
[Journal Article] Subarctic pacific intermediate water: an oceanic highway for the transport of trace metals in the North Pacific2022
- Author(s)
  K.H. Wong, H. Obata, J. Nishioka, Y. Yamashita, Y. Kondo, T. Kim, A.S. Mashio, H. Hasegawa
- Journal Title
  
  Limnology and Oceanography Bulletin
  
  Volume: 31 Issue: 2 Pages: 31-36
- DOI
  10.1002/lob.10490
- Peer Reviewed / Open Access / Int'l Joint Research
- Data Source
  KAKENHI-PROJECT-21H03632, KAKENHI-PROJECT-19K12309, KAKENHI-PROJECT-20KK0240, KAKENHI-PROJECT-21H05056
[Journal Article] Widespread distribution of allochthonous fluorescent dissolved organic matter in the intermediate water of the North Pacific2021
- Author(s)
  Yamashita Youhei、Tosaka Tetsu、Bamba Rise、Kamezaki Ryuichi、Goto Shuji、Nishioka Jun、Yasuda Ichiro、Hirawake Toru、Oida Joji、Obata Hajime、Ogawa Hiroshi
- Journal Title
  
  Progress in Oceanography
  
  Volume: 191 Pages: 102510-102510
- DOI
  10.1016/j.pocean.2020.102510
- Peer Reviewed / Open Access / Int'l Joint Research
- Data Source
  KAKENHI-PLANNED-15H05818, KAKENHI-PLANNED-15H05820, KAKENHI-PUBLICLY-18H04910, KAKENHI-PROJECT-19H04249, KAKENHI-WRAPUP-20H05598, KAKENHI-PROJECT-19H04250, KAKENHI-PUBLICLY-20H04965, KAKENHI-PROJECT-21H04921
[Journal Article] Iron and nutrient dynamics along the East Kamchatka current, western Bering sea basin and Gulf of Anadyr2021
- Author(s)
  Nishioka J, Hirawake T, Nomura D, Yamashita Y, Ono K, Murayama A, Shcherbinin A, Volkov Y N, Mitsudera H, Ebuch N, Wakatsuchi M, Yasuda I
- Journal Title
  
  Progress in Oceanography
  
  Volume: - Pages: 102662-102662
- DOI
  10.1016/j.pocean.2021.102662
- Peer Reviewed / Open Access / Int'l Joint Research
- Data Source
  KAKENHI-PROJECT-20K21838, KAKENHI-WRAPUP-20H05598, KAKENHI-PROJECT-17H00775, KAKENHI-PUBLICLY-20H04965, KAKENHI-PROJECT-18H03745, KAKENHI-PROJECT-20H04345, KAKENHI-PROJECT-20H05707, KAKENHI-PROJECT-21H05056, KAKENHI-PROJECT-21H04921, KAKENHI-PROJECT-21H01154, KAKENHI-PLANNED-19H05701
[Journal Article] Relationships between dissolved black carbon and dissolved organic matter in streams2021
- Author(s)
  Yamashita, Y., Kojima, D., Yoshida, N., Shibata, H.
- Journal Title
  
  Chemosphere
  
  Volume: 271 Pages: 129824-129824
- DOI
  10.1016/j.chemosphere.2021.129824
- Peer Reviewed
- Data Source
  KAKENHI-PROJECT-19H04249
[Journal Article] Transport of dissolved black carbon from marginal sea sediments to the western North Pacific2021
- Author(s)
  Mori, Y., J. Nishioka, S. Fujio, Y. Yamashita
- Journal Title
  
  Prog, Oceanogr.
  
  Volume: 193 Pages: 102552-102552
- DOI
  10.1016/j.pocean.2021.102552
- Peer Reviewed
- Data Source
  KAKENHI-PLANNED-15H05820, KAKENHI-PUBLICLY-18H04910, KAKENHI-PROJECT-19H04249
[Journal Article] Stable Water Isotope Assessment of Tundra Wetland Hydrology as a Potential Source of Arctic Riverine Dissolved Organic Carbon in the Indigirka River Lowland, Northeastern Siberia2021
- Author(s)
  Takano Shinya、Yamashita Youhei、Tei Shunsuke、Liang Maochang、Shingubara Ryo、Morozumi Tomoki、Maximov Trofim C.、Sugimoto Atsuko
- Journal Title
  
  Frontiers in Earth Science
  
  Volume: 9 Pages: 699365-699365
- DOI
  10.3389/feart.2021.699365
- Peer Reviewed / Open Access / Int'l Joint Research
- Data Source
  KAKENHI-PROJECT-19H04249, KAKENHI-PROJECT-20K19950
[Journal Article] Formation of dense shelf water associated with sea ice freezing in the Gulf of Anadyr estimated with oxygen isotopic ratios2021
- Author(s)
  Nomura Daiki、Abe Hiroto、Hirawake Toru、Ooki Atsushi、Yamashita Youhei、Murayama Aiko、Ono Kazuya、Nishioka Jun
- Journal Title
  
  Progress in Oceanography
  
  Volume: 196 Pages: 102595-102595
- DOI
  10.1016/j.pocean.2021.102595
- Peer Reviewed / Open Access
- Data Source
  KAKENHI-PROJECT-19K12305, KAKENHI-PROJECT-17H00775, KAKENHI-PROJECT-16H02929, KAKENHI-PROJECT-18H03745, KAKENHI-PROJECT-20H04345
[Journal Article] Water mass distribution in the northern Bering and southern Chukchi seasusing light absorption of chromophoric dissolved organic matter2021
- Author(s)
  Hirawake T, Ooida J, Yamashita Y, Waga H, Abe H, Nishioka J, Nomura D, Ueno H, Ooki A
- Journal Title
  
  Progres in Oceanography
  
  Volume: - Pages: 102641-102641
- DOI
  10.1016/j.pocean.2021.102641
- Peer Reviewed / Open Access
- Data Source
  KAKENHI-PROJECT-17H00775, KAKENHI-PROJECT-16H02929, KAKENHI-PROJECT-18H03745, KAKENHI-PROJECT-19H04250, KAKENHI-PROJECT-20H04345
[Journal Article] New index of organic mass enrichment in sea spray aerosols linked with senescent status in marine phytoplankton2020
- Author(s)
  Miyazaki Yuzo、Suzuki Koji、Tachibana Eri、Yamashita Youhei、Mueller Astrid、Kawana Kaori、Nishioka Jun
- Journal Title
  
  Scientific Reports
  
  Volume: 10 Issue: 1 Pages: 17042-17042
- DOI
  10.1038/s41598-020-73718-5
- Peer Reviewed / Open Access
- Data Source
  KAKENHI-PROJECT-19H04233, KAKENHI-PROJECT-18F18398
[Journal Article] Shelf humic substances as carriers for basin-scale iron transport in the North Pacific2020
- Author(s)
  Yamashita, Y., J. Nishioka, H. Obata, and H. Ogawa
- Journal Title
  
  Scientific Reports
  
  Volume: 10 Issue: 1 Pages: 4505-4505
- DOI
  10.1038/s41598-020-61375-7
- Peer Reviewed / Open Access
- Data Source
  KAKENHI-PROJECT-17H00775, KAKENHI-ORGANIZER-15H05817, KAKENHI-PLANNED-15H05820, KAKENHI-PUBLICLY-18H04910, KAKENHI-PROJECT-19H04249, KAKENHI-PROJECT-16H02701
[Journal Article] Characterization of the Water Masses in the Shelf Region of the Bering and Chukchi Seas With Fluorescent Organic Matter2019
- Author(s)
  Yamashita Youhei、Yagi Yuki、Ueno Hiromichi、Ooki Atsushi、Hirawake Toru
- Journal Title
  
  Journal of Geophysical Research: Oceans
  
  Volume: 124 Issue: 11 Pages: 7545-7556
- DOI
  10.1029/2019jc015476
- Peer Reviewed / Open Access
- Data Source
  KAKENHI-PROJECT-16H02929, KAKENHI-PROJECT-19H04250
[Journal Article] Determination of the freshwater origin of Coastal Oyashio Water using humic-like fluorescence in dissolved organic matter2018
- Author(s)
  Y. Mizuno, J. Nishioka, T. Tanaka, Y. Tada, K. Suzuki, Y. Tsuzuki, A. Sugimoto, *Y. Yamashita
- Journal Title
  
  J. Oceanogr
  
  Volume: 74 Issue: 5 Pages: 509-521
- DOI
  10.1007/s10872-018-0477-x
- NAID
  120006529649
- Peer Reviewed / Open Access
- Data Source
  KAKENHI-PLANNED-15H05818, KAKENHI-PROJECT-16H02930, KAKENHI-PROJECT-17H00775
[Journal Article] Production and reutilization of fluorescent dissolved organic matter by a marine bacterial strain, Alteromonas macleodii2017
- Author(s)
  GOTO, S., Y. TADA, K. SUZUKI, and Y. YAMASHITA
- Journal Title
  
  Frontiers in Microbiology
  
  Volume: 8 Pages: 507-507
- DOI
  10.3389/fmicb.2017.00507
- NAID
  120006219985
- Peer Reviewed / Open Access
- Data Source
  KAKENHI-PLANNED-24121003, KAKENHI-PLANNED-24121004
[Journal Article] Distribution and Sources of Dissolved Black Carbon in Surface Waters of the Chukchi Sea, Bering Sea, and the North Pacific Ocean.2017
- Author(s)
  Nakane M, Ajioka T, and Yamashita Y
- Journal Title
  
  Frontiers in Earth Science
  
  Volume: 5 Pages: 34-34
- DOI
  10.3389/feart.2017.00034
- Peer Reviewed / Open Access
- Data Source
  KAKENHI-PROJECT-16H02930
[Journal Article] Factors controlling the geographical distribution of fluorescent dissolved organic matter in the surface waters of the Pacific Ocean.2017
- Author(s)
  YAMASHITA, Y., F. HASHIHAMA, H. SAITO, H. FUKUDA, and H. OGAWA
- Journal Title
  
  Limnology and Oceanography
  
  Volume: 62 Issue: 6 Pages: 2360-2374
- DOI
  10.1002/lno.10570
- NAID
  120006533132
- Peer Reviewed / Acknowledgement Compliant
- Data Source
  KAKENHI-PLANNED-24121003, KAKENHI-PROJECT-16H02930, KAKENHI-PLANNED-24121005, KAKENHI-PROJECT-16K12579
[Journal Article] Dynamics and Origin of transparent expolymer particles in the Oyashio region of the western subarctic Pacific during the spring diatom bloom2017
- Author(s)
  NOSAKA, Y., Y. YAMASHITA, and K. SUZUKI
- Journal Title
  
  Frontiers in Marine Science
  
  Volume: 4 Pages: 79-79
- DOI
  10.3389/fmars.2017.00079
- Peer Reviewed / Open Access
- Data Source
  KAKENHI-PLANNED-24121003, KAKENHI-PLANNED-24121004
[Journal Article] The conservative behavior of dissolved organic carbon in surface waters of the southern Chukchi Sea, Arctic Ocean, during early summer2016
- Author(s)
  Tanaka, K., Takesue, N., Nishioka, J., Kondo, Y., Ooki, A., Kuma, K., Hirawake, T., Yamashita, Y.
- Journal Title
  
  Scientific Reports
  
  Volume: 6 Issue: 1 Pages: 1-10
- DOI
  10.1038/srep34123
- Peer Reviewed / Open Access
- Data Source
  KAKENHI-PUBLICLY-16H01592, KAKENHI-PLANNED-24121003, KAKENHI-PLANNED-15H05820
[Journal Article] Sources and transformations of dissolved lignin phenols and chromophoric dissolved organic matter in Otsuchi Bay, Japan2016
- Author(s)
  LU, C.-J., R. BENNER, C.G. FICHOT, H. FUKUDA, Y. YAMASHITA, and H. OGAWA
- Journal Title
  
  Frontiers in Marine Science
  
  Volume: 3 Pages: 85-85
- DOI
  10.3389/fmars.2016.00085
- Peer Reviewed / Open Access / Int'l Joint Research
- Data Source
  KAKENHI-PLANNED-24121003, KAKENHI-PROJECT-16K12579
[Journal Article] Spatial variation in the origin and reactivity of dissolved organic matter in Oregon-Washington coastal waters2015
- Author(s)
  LU, Y., J.W. EDMONDS, Y. YAMASHITA, B. ZOU, A. JAEGGE, and M. BAXLEY
- Journal Title
  
  Ocean Dynamics
  
  Volume: 65 Issue: 1 Pages: 17-32
- DOI
  10.1007/s10236-014-0793-7
- Peer Reviewed
- Data Source
  KAKENHI-PLANNED-24121003, KAKENHI-PROJECT-24681002
[Journal Article] Dynamics of dissolved organic matter in fjord ecosystems: Contributions of terrestrial dissolved organic matter in the deep layer2015
- Author(s)
  Yamashita, Y., L.S. McCallister, B.P. Koch, M. Gonsior, and R. Jaffe
- Journal Title
  
  Estuarine, Coastal and Shelf Science
  
  Volume: 159 Pages: 37-49
- DOI
  10.1016/j.ecss.2015.03.024
- Peer Reviewed
- Data Source
  KAKENHI-PROJECT-24681002, KAKENHI-PLANNED-24121003
[Journal Article] Linkages among fluorescent dissolved organic matter, dissolved amino acids and lignin-derived phenols in a river-influenced ocean margin2015
- Author(s)
  Yamashita,Y., C.G. Fichot, Y. Shen, R. Jaffé, and R. Benner
- Journal Title
  
  Frontiers in Marine Science
  
  Volume: 2 Pages: 92-92
- DOI
  10.3389/fmars.2015.00092
- Peer Reviewed / Open Access / Int'l Joint Research
- Data Source
  KAKENHI-PLANNED-24121003
[Journal Article] Application of in situ fluorometer to determine the distribution of fluorescent dissolved organic matter in the open ocean2015
- Author(s)
  Yamashita, Y., C.-J. Lu, H. Ogawa, J. Nishioka, H. Obata, and H. Saito
- Journal Title
  
  Marine Chemistry
  
  Volume: 178 Pages: 298-305
- DOI
  10.1016/j.marchem.2015.06.025
- Peer Reviewed / Acknowledgement Compliant / Int'l Joint Research
- Data Source
  KAKENHI-PLANNED-24121003, KAKENHI-PROJECT-24310008, KAKENHI-PLANNED-24121005
[Journal Article] Evaluating the distribution of terrestrial dissolved organic matter in a complex coastal ecosystem using fluorescence spectroscopy2014
- Author(s)
  Yamashita, Y., J.N. Boyer, and R. Jaffe
- Journal Title
  
  Continental Shelf Research
  
  Volume: 66 Pages: 136-144
- DOI
  10.1016/j.csr.2013.06.010
- NAID
  120005343766
- Peer Reviewed
- Data Source
  KAKENHI-PROJECT-24681002
[Journal Article] Dissolved organic matter dynamics in the oligo/meso-haline zone of wetland-influenced coastal rivers2014
- Author(s)
  MAIE, N., S. SEKIGUCHI, A. WATANABE, K. TSUTSUKI, Y. YAMASHITA, L. MELLING, K. CAWLEY, E. SHIMA, and R. JAFFE
- Journal Title
  
  Journal of Sea Research
  
  Volume: 91 Pages: 58-65
- DOI
  10.1016/j.seares.2014.02.016
- Peer Reviewed
- Data Source
  KAKENHI-PLANNED-24121003, KAKENHI-PROJECT-24681002
[Journal Article] Accumulation of humic-like fluorescent dissolved organic matter in the Japan Sea2014
- Author(s)
  TANAKA, K., K. KUMA, K. HAMASAKI, and Y. YAMASHITA
- Journal Title
  
  Scientific Reports
  
  Volume: 4 Issue: 1 Pages: 5292-5292
- DOI
  10.1038/srep05292
- NAID
  120005465520
- Peer Reviewed / Acknowledgement Compliant / Open Access
- Data Source
  KAKENHI-PLANNED-24121003, KAKENHI-PROJECT-24310008, KAKENHI-PROJECT-24681002
[Journal Article] Using optical properties to quantify fringe mangrove inputs to the dissolved organic matter (DOM) pool in a subtropical estuary2014
- Author(s)
  CAWLEY, K.M., Y. YAMASHITA, N. MAIE, and R. JAFFE
- Journal Title
  
  Estuaries and Coasts
  
  Volume: 37 Issue: 2 Pages: 399-410
- DOI
  10.1007/s12237-013-9681-5
- Peer Reviewed
- Data Source
  KAKENHI-PLANNED-24121003
[Journal Article] Fluorescence characteristics of size-fractionated dissolved organic matter: Implications for a molecular assembly based structure?2014
- Author(s)
  Romera-Castillo, C., M. Chen, Y. Yamashita, and R. Jaffe
- Journal Title
  
  Water Research
  
  Volume: 55 Pages: 40-51
- DOI
  10.1016/j.watres.2014.02.017
- Peer Reviewed
- Data Source
  KAKENHI-PROJECT-24681002
[Journal Article] Photobleaching as a factor controlling spectral characteristics of chromophoric dissolved organic matter in open ocean2013
- Author(s)
  YAMASHITA, Y., Y. NOSAKA, K. SUZUKI, H. OGAWA, K. TAKAHASHI and H. SAITO
- Journal Title
  
  Biogeosciences
  
  Volume: 10 Issue: 11 Pages: 7207-7217
- DOI
  10.5194/bg-10-7207-2013
- NAID
  120005365915
- Peer Reviewed
- Data Source
  KAKENHI-PLANNED-24121003, KAKENHI-PLANNED-24121005, KAKENHI-PROJECT-24310008, KAKENHI-PROJECT-24681002
[Journal Article] 海洋学の10年展望（II）-日本海洋学会将来構想委員会化学サブグループの議論から-2013
- Author(s)
  神田穣太, 石井雅男, 小川浩史, 小埜恒夫, 小畑元, 川合美千代, 鈴村昌弘, 本多牧生, 山下洋平, 渡邉豊
- Journal Title
  
  海の研究
  
  Volume: 22 Pages: 219-251
- Peer Reviewed
- Data Source
  KAKENHI-PROJECT-24681002
[Journal Article] 海洋学の10年展望（II）-日本海洋学会将来構想委員会化学サブグループの議論から-2013
- Author(s)
  神田穣太, 石井雅男, 小川浩史, 小埜恒夫, 小畑元, 川合美千代, 鈴村昌弘, 本多牧生, 山下洋平, 渡邉豊
- Journal Title
  
  海の研究
  
  Volume: 22 Pages: 219-251
- Peer Reviewed
- Data Source
  KAKENHI-PLANNED-24121003
[Journal Article] 太平月刊海洋における溶存腐植様蛍光物質の分布-北太平洋中層水による陸起源腐植物質輸送の可能性-2012
- Author(s)
  山下洋平
- Journal Title
  
  月刊海洋
  
  Volume: 44 Pages: 486-491
- Data Source
  KAKENHI-PROJECT-24681002
[Journal Article] 太平洋における溶存腐植様蛍光物質の分布-北太平洋中層水による陸起源腐植物質輸送の可能性-2012
- Author(s)
  山下洋平
- Journal Title
  
  月刊海洋
  
  Volume: 44 Pages: 486-491
- Data Source
  KAKENHI-PROJECT-23651003
[Journal Article] Application of excitation emission matrix fluorescence monitoring in the assessment of spatial and seasonal drivers of dissolved organic matter composition : Sources and physical disturbance controls2012
- Author(s)
  Maie, N., Y. Yamashita, R. M. Cory, J. N. Boyer,R. Jaffe
- Journal Title
  
  Applied Geochemistry
  
  Volume: 27 Pages: 917-929
- Peer Reviewed
- Data Source
  KAKENHI-PROJECT-24681002
[Journal Article] 太平洋における溶存腐植様蛍光物質の分布 –北太平洋中層水による陸起源腐植物質輸送の可能性-2012
- Author(s)
  山下洋平
- Journal Title
  
  月刊海洋
  
  Volume: 44 Pages: 486-491
- Data Source
  KAKENHI-PROJECT-23651003
[Presentation] Iron supply processes in the southern Sea of Okhotsk2024
- Author(s)
  Momoka Imai, Aiko Murayama , Kazuya Ono, Youhei Yamashita , Koji Suzuki, Tomohiro Nakamura, Kay I. Ohshima, Humio Mitsudera and Jun Nishioka
- Organizer
  The 38th International Symposium on the Okhotsk Sea & Polar Oceans
- Int'l Joint Research
- Data Source
  KAKENHI-PLANNED-22H05205
[Presentation] Characteristics of water masses and nutrient properties in the southern Sea of Okhotsk2024
- Author(s)
  Nishioka, J., T. Toyota, A. Murayama, K. Ono, M. Imai, Y. Yamashita, K. Suzuki, T. Nakamura, K. I. Ohshima, H. Misudera
- Organizer
  The 38th International Symposium on the Okhotsk Sea & Polar Oceans
- Int'l Joint Research
- Data Source
  KAKENHI-PLANNED-22H05205
[Presentation] Characteristics of Water Masses and Nutrients conditions in the southern Sea of Okhotsk2023
- Author(s)
  Nishioka, J., T. Toyota, A. Murayama, K. Ono, M. Imai, Y. Yamashita, K. Suzuki, T. Nakamura, K. I. Ohshima, H. Misudera
- Organizer
  The 37th International Symposium on the Okhotsk Sea & Polar Oceans
- Int'l Joint Research
- Data Source
  KAKENHI-PROJECT-21H05056
[Presentation] 河川水中微生物の細胞サイズが溶存有機物分解に与える影響2023
- Author(s)
  高木悠司, 鈴木光次, 山下洋平
- Organizer
  日本陸水学会第８７回大会
- Data Source
  KAKENHI-PLANNED-22H05205
[Presentation] Origin and transport of dissolved organic matter in the northwestern margin of the North Pacific inferred from radiocarbon signatures2023
- Author(s)
  Otosaka, S., Y. Hou, M. Wakita, Y. Yamashita, J. Nishioka, H. Obata, Y. Miyairi, Y. Yokoyama, H. Ogawa
- Organizer
  i-CoAST 2023
- Int'l Joint Research
- Data Source
  KAKENHI-PLANNED-22H05205
[Presentation] Water mass distribution in the northern Bering and southern Chukchi seas using light absorption of chromophoric (colored) dissolved organic matter2023
- Author(s)
  Hirawake T., J. Oida, Y. Yamashita, H. Waga, H. Abe, J. Nishioka, D. Nomura, H. Ueno, A. Ooki
- Organizer
  ESSAS Annual Science Meeting
- Int'l Joint Research
- Data Source
  KAKENHI-PLANNED-22H05205
[Presentation] Sources of dissolved organic carbon in the western North Pacific traced by radiocarbon signatures2023
- Author(s)
  Shigeyoshi Otosaka, Yui Sakai, Yunxuan Hou, Masahide Wakita, Youhei Yamashita, Jun Nishioka, Hajime Obata, Yosuke Miyairi, Yusuke Yokoyama, Hiroshi Ogawa
- Organizer
  2024 Ocean Sciences Meeting
- Int'l Joint Research
- Data Source
  KAKENHI-PLANNED-22H05205
[Presentation] 細胞サイズが異なる河川水中微生物の溶存有機物分解への寄与2023
- Author(s)
  高木悠司, 鈴木光次, 山下洋平
- Organizer
  日本微生物生態学会第36回大会
- Data Source
  KAKENHI-PLANNED-22H05205
[Presentation] 河川水中微生物の細胞サイズと溶存有機物分解の関係2023
- Author(s)
  高木悠司, 鈴木光次, 山下洋平
- Organizer
  Japan Geoscience Union Meeting 2023
- Data Source
  KAKENHI-PLANNED-22H05205
[Presentation] 蛍光性溶存有機物を用いた黒潮-親潮混合域の水塊解析2023
- Author(s)
  山下洋平, 竹熊俊征, 田尻慎, 大井田穣示, 筧茂穂, 大木淳之, 平譯享
- Organizer
  2023年度日本海洋学会秋季大会
- Data Source
  KAKENHI-PLANNED-22H05205
[Presentation] 海洋の溶存黒色炭素収支における不均衡:大気からの沈着フラックスは正しい?2023
- Author(s)
  山下洋平
- Organizer
  北海道大学低温科学研究所共同利用研究会
- Data Source
  KAKENHI-PROJECT-23K24969
[Presentation] Characteristics of water masses and nutrients conditions in the southern Sea of Okhotsk2023
- Author(s)
  Imai, M., A. Murayama, K. Ono, Y. Yamashita, K. Suzuki, T. Nakamura, K.I. Ohshima, H. Mitsudera, J. Nishioka
- Organizer
  The 37th International Symposium on the Okhotsk Sea & Polar Oceans
- Int'l Joint Research
- Data Source
  KAKENHI-PLANNED-22H05205
[Presentation] Characteristics of water masses and nutrients conditions in the southern Sea of Okhotsk2023
- Author(s)
  Nishioka, J., T. Toyota, A. Murayama, K. Ono, M. Imai, Y. Yamashita, K. Suzuki, T. Nakamura, K.I. Ohshima, H. Mitsudera
- Organizer
  The 37th International Symposium on the Okhotsk Sea & Polar Oceans
- Int'l Joint Research
- Data Source
  KAKENHI-PLANNED-22H05205
[Presentation] オホーツク海南部の水塊構造とFe濃度分布2023
- Author(s)
  今井望百花，村山愛子，小野数也，山下洋平，鈴木光次，中村知裕，大島慶一郎，三寺史夫，西岡純
- Organizer
  2023年度日本海洋学会秋季大会
- Data Source
  KAKENHI-PLANNED-22H05205
[Presentation] 中層水循環により縁辺海から北太平洋に輸送される溶存鉄の化学形態2022
- Author(s)
  山下洋平, 西岡純
- Organizer
  日本海洋学会秋季大会
- Data Source
  KAKENHI-PROJECT-19H04250
[Presentation] 中層水循環により縁辺海から北太平洋に輸送される溶存鉄の化学形態2022
- Author(s)
  山下洋平、西岡純
- Organizer
  2022日本海洋学会秋季大会
- Data Source
  KAKENHI-PROJECT-21H05056
[Presentation] 北太平洋中層水のケイ素を含めた化学的特性の形成過程:仮説の提案2022
- Author(s)
  西岡純、小畑元、山下洋平、三角和弘、南秀樹、則末和宏、鈴木光次、近藤能子、中村知裕、三寺史夫、津旨大輔、坪野考樹
- Organizer
  2022日本海洋学会秋季大会
- Data Source
  KAKENHI-PROJECT-21H05056
[Presentation] Detection of biologically productive water mass from ocean color satellite using chromophoric dissolved organic matter (CDOM)2022
- Author(s)
  Oida, J., T. Hirawake, Y. Yamashita, H. Abe, J. Nishioka, H. Waga, D. Nomura, S. Kakehi
- Organizer
  ESSAS Annual Science Meeting
- Int'l Joint Research
- Data Source
  KAKENHI-PROJECT-19H04250
[Presentation] 有色溶存有機物 (CDOM)を用いた海色衛星による高生産水塊の検出2022
- Author(s)
  大井田穣示, 平譯享, 山下洋平, 阿部泰人, 西岡純, 和賀久朋, 野村大樹, 筧茂穂
- Organizer
  日本海洋学会秋季大会
- Data Source
  KAKENHI-PROJECT-19H04250
[Presentation] 北西部北太平洋における溶存有機態放射性炭素の分布と溶存有機物の動態2022
- Author(s)
  乙坂重嘉, 脇田昌英, 山下洋平, 西岡純, 小畑元, 宮入陽介, 横山祐典, 小川浩史
- Organizer
  日本惑星地球連合大会2022
- Data Source
  KAKENHI-PLANNED-22H05205
[Presentation] 中層水循環により縁辺海から北太平洋に輸送される溶存鉄の化学形態2022
- Author(s)
  山下洋平, 西岡純
- Organizer
  2022年度日本海洋学会秋季大会
- Data Source
  KAKENHI-PLANNED-22H05205
[Presentation] 北太平洋中層水のケイ素を含めた化学的特性の形成過程：仮説の提案2022
- Author(s)
  西岡純, 小畑元, 山下洋平, 三角和弘, 南秀樹, 則末和宏, 鈴木光次, 近藤能子, 中村知裕, 三寺史夫, 津旨大輔, 坪野考樹
- Organizer
  2022年度日本海洋学会秋季大会
- Data Source
  KAKENHI-PLANNED-22H05205
[Presentation] 有色溶存有機物 (CDOM)を用いた海色衛星による高生産水塊の検出2022
- Author(s)
  大井田穣示, 平譯享, 山下洋平, 阿部泰人, 西岡純, 和賀久朋, 野村大樹, 筧茂穂
- Organizer
  2022年度日本海洋学会秋季大会
- Data Source
  KAKENHI-PLANNED-22H05205
[Presentation] オホーツク海における船舶観測で捉えた春季ブルームと物質環境の実態2022
- Author(s)
  今井望百花、村山愛子、小野数也、山下洋平、鈴木光次、中村知裕、大島慶一郎、三寺史夫、西岡純
- Organizer
  日本地球惑星連合大会2022年年会
- Data Source
  KAKENHI-PROJECT-21H05056
[Presentation] 海洋における溶存黒色炭素の除去過程2022
- Author(s)
  山下洋平, 中根基裕, 森雄太郎, 西岡純, 小川浩史
- Organizer
  日本地球惑星科学連合2022年大会
- Data Source
  KAKENHI-PROJECT-23K24969
[Presentation] 陸域圏で生成される熱成炭素の行方2022
- Author(s)
  山下洋平
- Organizer
  日本気象学会2022年度秋季大会統合的陸域圏研究連絡会
- Data Source
  KAKENHI-PLANNED-22H05205
[Presentation] 海洋における溶存黒色炭素の挙動2022
- Author(s)
  山下洋平
- Organizer
  金沢大学環日本海域環境研究センター研究集会
- Data Source
  KAKENHI-PROJECT-19H04249
[Presentation] 河川における有機物の空間的な不均質性が微生群集にもたらす影響2022
- Author(s)
  三浦彩, 山下洋平, 根岸淳二郎
- Organizer
  日本微生物生態学会第35回大会
- Data Source
  KAKENHI-PLANNED-22H05205
[Presentation] 陸域圏で生成される熱成炭素の行方2022
- Author(s)
  山下洋平
- Organizer
  日本気象学会2022年度秋季大会, 統合的陸域圏研究連絡会
- Invited
- Data Source
  KAKENHI-PROJECT-23K24969
[Presentation] 沿岸域における燃焼起源溶存有機物の挙動2021
- Author(s)
  石坂洸太、山下洋平
- Organizer
  有機地球化学会
- Data Source
  KAKENHI-PROJECT-19H04249
[Presentation] 北太平洋における中層水循環に伴う外来性溶存有機物の輸送2020
- Author(s)
  山下洋平, 森雄太郎, 遠坂哲, 亀崎龍一, 後藤周史, 西岡純, 馬場梨世, 安田一郎, 藤尾伸三, 平譯享, 大井田穣示, 小畑元, 小川浩史
- Organizer
  2020秋季海洋学会
- Data Source
  KAKENHI-PROJECT-19H04249
[Presentation] 北太平洋における中層水循環に伴う外来性溶存有機物の輸送2020
- Author(s)
  山下洋平, 森雄太郎, 遠坂哲, 亀崎龍一, 後藤周史, 西岡純, 馬場梨世, 安田一郎, 藤尾伸三, 平譯享, 大井田穣示, 小畑元, 小川浩史
- Organizer
  JpGU 2020
- Data Source
  KAKENHI-PROJECT-19H04250
[Presentation] 衛星海色リモートセンシングによる沿岸域の観測2020
- Author(s)
  平譯享，山下洋平，鈴木光次，西岡純
- Organizer
  JpGU 2020
- Invited
- Data Source
  KAKENHI-PROJECT-19H04250
[Presentation] 有色溶存有機物(CDOM)から見る西部北太平洋及び北部ベーリング海の水塊構造と栄養塩分布2020
- Author(s)
  大井田穣示，平譯享，山下洋平，阿部泰人、西岡純、和賀久朋、野村大樹
- Organizer
  JpGU 2020
- Data Source
  KAKENHI-PROJECT-19H04250
[Presentation] 北太平洋における中層水循環に伴う外来性溶存有機物の輸送2020
- Author(s)
  山下洋平, 森雄太郎, 遠坂哲, 亀崎龍一, 後藤周史, 西岡純, 馬場梨世, 安田一郎, 藤尾伸三, 平譯享, 大井田穣示, 小畑元, 小川浩史
- Organizer
  2020秋季海洋学会
- Data Source
  KAKENHI-PUBLICLY-18H04910
[Presentation] An insight into chemical speciation of dissolved iron in the intermediate water of the North Pacific2019
- Author(s)
  Yamashita, Y., Nishioka, J., Obata, H., Ogawa, H.
- Organizer
  JpGU 2019
- Int'l Joint Research
- Data Source
  KAKENHI-PUBLICLY-18H04910
[Presentation] 北太平洋中層水による外来性腐植様溶存有機物の輸送2019
- Author(s)
  山下洋平, 西岡純, 小畑元, 小川浩史
- Organizer
  JpGU 2019
- Data Source
  KAKENHI-PUBLICLY-18H04910
[Presentation] 北太平洋中層水による外来性腐植様溶存有機物の輸送2019
- Author(s)
  山下洋平, 西岡純, 小畑元, 小川浩史
- Organizer
  JpGU 2019
- Data Source
  KAKENHI-PROJECT-19H04249
[Presentation] 東部インド洋における燃焼起源溶存有機物の分布と動態に関する研究2019
- Author(s)
  森雄太郎, 山下洋平, 小川浩史
- Organizer
  2019秋季海洋学会
- Data Source
  KAKENHI-PROJECT-19H04249
[Presentation] 植物と土壌の窒素同位体比に対する土壌の窒素利用可能性の影響―北海道とモンゴルの針葉樹林の比較から2018
- Author(s)
  藤吉麗, 杉本敦子, 山下洋平, 李肖陽
- Organizer
  第65回日本生態学会大会、札幌コンベンションセンター
- Int'l Joint Research
- Data Source
  KAKENHI-PROJECT-26281003
[Presentation] Distribution of allochthonous humic-like fluorescent dissolved organic matter in the western North Pacific Ocean2018
- Author(s)
  Yamashita Y, Nishioka J, Obata H, and Ogawa H
- Organizer
  2018 Ocean Sciences Meeting
- Int'l Joint Research
- Data Source
  KAKENHI-PROJECT-16H02930
[Presentation] 蛍光性溶存有機物を用いた沿岸親潮水の起源推定2017
- Author(s)
  水野優, 西岡純, 多田雄哉, 鈴木光次, 山下洋平
- Organizer
  JpGU-AGU Joint meeting 2017
- Data Source
  KAKENHI-PROJECT-16H02930
[Presentation] 室内放電実験に基づく海洋表面への落雷に伴う物質循環の検討2016
- Author(s)
  亀山宗彦・佐藤孝紀・山下洋平・小川浩史・角皆潤・谷本浩志
- Organizer
  日本海洋学会 2016年度春季大会
- Place of Presentation
  東京・東京大学本郷キャンパス
- Year and Date
  2016-03-15
- Data Source
  KAKENHI-PROJECT-15K12181
[Presentation] Linking chemical and fluorescence properties of soil humic acids2016
- Author(s)
  N. Maie, A. Watanabe, F. Yamamoto, Y. Yamashita, and E. Shima
- Organizer
  18th International Conference of International Humic Substances Society
- Place of Presentation
  金沢大学（石川県金沢市）
- Year and Date
  2016-09-11
- Invited / Int'l Joint Research
- Data Source
  KAKENHI-PLANNED-24121003
[Presentation] 太平洋表層における蛍光性溶存有機物の量的および質的分布2016
- Author(s)
  山下洋平, 橋濱史典, 齊藤宏明, 福田秀樹, 小川浩史
- Organizer
  日本地球惑星科学連合2016年大会
- Place of Presentation
  幕張メッセ（千葉県千葉市）
- Data Source
  KAKENHI-PROJECT-16H02930
[Presentation] 太平洋表層における蛍光性溶存有機物の量的・質的分布2016
- Author(s)
  山下洋平・橋濱史典・齊藤宏明・福田秀樹・小川浩史
- Organizer
  東京大学大気海洋研究所共同利用研究集会「太平洋南北断面観測による生物地球化学・生態系の統合研究」
- Place of Presentation
  東京大学（柏市）
- Year and Date
  2016-02-19
- Data Source
  KAKENHI-PLANNED-24121003
[Presentation] Improvement of photochemical extraction system for radiocarbon study of dissolved organic carbon in the central Pacific Ocean2016
- Author(s)
  Jeon, H., S. Otosaka, Y. Yamashita, H. Ogawa
- Organizer
  7th China-Japan-Korea IMBER Symposium
- Place of Presentation
  KIOST Jeju center (Jeju)
- Year and Date
  2016-03-24
- Int'l Joint Research
- Data Source
  KAKENHI-PLANNED-24121003
[Presentation] Quantitative and qualitative distribution of fluorescent dissolvedorganic matter in the Pacific surface waters2016
- Author(s)
  Y. Yamashita, F. Hashihama, H. Saito, H. Fukuda, and H. Ogawa
- Organizer
  18th International Conference of International Humic Substances Society
- Place of Presentation
  金沢大学（石川県金沢市）
- Year and Date
  2016-09-11
- Invited / Int'l Joint Research
- Data Source
  KAKENHI-PLANNED-24121003
[Presentation] Quantitative and qualitative distribution of fluorescent dissolved organic matter in the Pacific surface waters2016
- Author(s)
  Yamashita, Y., F. Hashihama, H. Saito, H. Fukuda, and H. Ogawa
- Organizer
  18th International Conference of the International Humic Substances Society
- Place of Presentation
  Kanazawa Bunka Hall（石川県金沢市）
- Invited / Int'l Joint Research
- Data Source
  KAKENHI-PROJECT-16H02930
[Presentation] 太平洋表層における蛍光性溶存有機物の量的・質的分布2016
- Author(s)
  山下洋平, 橋濱史典, 齊藤宏明, 福田秀樹, 小川浩史
- Organizer
  東京大学大気海洋研究所共同利用研究集会太平洋南北断面観測による生物地球化学・生態系の統合研究
- Place of Presentation
  東京大学(柏市）
- Year and Date
  2016-02-18
- Data Source
  KAKENHI-PLANNED-24121003
[Presentation] Accumulation of humic-like fluorescent dissolved organic matter in the Japan Sea Proper Water2015
- Author(s)
  Yamashita, Y., K. Tanaka, K. Kuma, K. Hamasaki
- Organizer
  １8th Pacific-Asian Marginal Seas Meeting
- Place of Presentation
  ぶんかテンブス館（那覇市）
- Year and Date
  2015-04-21
- Int'l Joint Research
- Data Source
  KAKENHI-PLANNED-24121003
[Presentation] Study on the radiocarbon distributions of dissolved organic carbon in the central Pacific Ocean2015
- Author(s)
  Jeon, H., S. Otosaka, Y. Yamashita, H. Ogawa
- Organizer
  NEOPS International Symposium, Developing New Ocean Provinces on Their Biogeochemistry and Ecosystems
- Place of Presentation
  東京大学（東京都文京区）
- Year and Date
  2015-12-03
- Int'l Joint Research
- Data Source
  KAKENHI-PLANNED-24121003
[Presentation] 溶存画分における熱起源有機物の定量法の検討2015
- Author(s)
  中根基裕, 味岡拓, 山下洋平
- Organizer
  第33回有機地球化学シンポジウム
- Place of Presentation
  北海道大学（札幌市北区）
- Year and Date
  2015-08-06
- Data Source
  KAKENHI-PLANNED-24121003
[Presentation] Spatial and size distributions of intact and core glycerol dialkyl glycerol tetraethers in suspended particulates in the North Pacific2015
- Author(s)
  Yamamoto, M., F. Ohira, Y. Yamashita
- Organizer
  27th International Meeting on Organic Geochemistry
- Place of Presentation
  Clarion Congress Hotel Prague　（Prague)
- Year and Date
  2015-09-13
- Int'l Joint Research
- Data Source
  KAKENHI-PLANNED-24121003
[Presentation] 北太平洋中層水による陸起源溶存有機物の輸送2015
- Author(s)
  山下洋平, 西岡純, 小畑元, 小川浩史
- Organizer
  北海道大学低温科学研究所共同研究シンポジウム日本を取り囲む陸海結合システムの解明に向けて
- Place of Presentation
  北海道大学（札幌市北区）
- Year and Date
  2015-12-17
- Data Source
  KAKENHI-PLANNED-24121003
[Presentation] Fate of GDGTs in the marine water column2014
- Author(s)
  Yamamoto, M., Ohira, F., Yamashita, Y., Nam, S.I.
- Organizer
  GDGT 2014 workshop
- Place of Presentation
  Texel. the Netherlands
- Year and Date
  2014-04-24
- Invited
- Data Source
  KAKENHI-PROJECT-25550001
[Presentation] 海洋水柱懸濁粒子中のインタクトGDGT: TEX86は何を示しているのか2014
- Author(s)
  山本正伸, 大平深史, 山下洋平
- Organizer
  第32回有機地球科学シンポジウム
- Place of Presentation
  湯河原町, 神奈川県
- Year and Date
  2014-11-07
- Data Source
  KAKENHI-PROJECT-25550001
[Presentation] DISTRIBUTIONS OF DISSOLVED LIGNIN IN THE WESTERN NORTH PACIFIC:　IMPLICATION FOR TRANSPORTATION OF TERRIGENOUS DISSOLVED ORGANIC MATTER ACCOMPANIED WITH IRON2014
- Author(s)
  Ogawa, H., C. Lu, J. Nishioka, Y. Yamashita, R. Benner
- Organizer
  2014 Ocean Science Meeting
- Place of Presentation
  Honolulu, USA
- Data Source
  KAKENHI-PLANNED-24121003
[Presentation] DISTRIBUTIONS OF DISSOLVED LIGNIN IN THE WESTERN NORTH PACIFIC: IMPLICATION FOR TRANSPORTATION OF TERRIGENOUS DISSOLVED ORGANIC MATTER ACCOMPANIED WITH IRON2014
- Author(s)
  Ogawa, H., C. Lu, J. Nishioka, Y. Yamashita, R. Benner
- Organizer
  2014 Ocean Science Meeting
- Place of Presentation
  ハワイコンベンションセンター（ホノルル）
- Data Source
  KAKENHI-PROJECT-24681002
[Presentation] 日本海における蛍光性溶存有機物の分布2013
- Author(s)
  田中和樹, 久万健志, 浜崎恒二, 永田俊, 山下洋平
- Organizer
  2013年度日本海洋学会秋季大会
- Place of Presentation
  北海道大学（札幌市）
- Data Source
  KAKENHI-PROJECT-24681002
[Presentation] Quantitative and qualitative characteristics of chromophoric dissolved organic matter (CDOM) in thewestern North Pacific2013
- Author(s)
  Yamashita, Y., Y. Nosaka, K. Suzuki, H. Ogawa, K. Takahashi, and H. Saito
- Organizer
  ASLO 2013 Aquatic Science Meeting
- Place of Presentation
  Ernest N. Morial Convention Center(USA)
- Year and Date
  2013-02-18
- Data Source
  KAKENHI-PROJECT-24681002
[Presentation] Quantitative and qualitative characteristics of chromophoric dissolved organic matter (CDOM) in the western North Pacific2013
- Author(s)
  Yamashita, Y.
- Organizer
  ASLO Aquatic Science Meeting
- Place of Presentation
  New Orleans, Louisiana, USA
- Data Source
  KAKENHI-PLANNED-24121003
[Presentation] 日本海における蛍光性溶存有機物の分布2013
- Author(s)
  田中和樹,久万健志, 浜崎恒二, 永田俊, 山下洋平
- Organizer
  2013年度日本海洋学会秋季大会
- Place of Presentation
  札幌
- Data Source
  KAKENHI-PLANNED-24121003
[Presentation] Accumulation of humic-like fluorescent dissolved organic matter in the Japan Sea Proper Water2013
- Author(s)
  Tanaka, K., K. Kuma, K. Hamasaki, T. Nagata, Y. Yamashita
- Organizer
  The 6th China-Japan-Korea IMBER symposium
- Place of Presentation
  東京大学（東京都）
- Data Source
  KAKENHI-PROJECT-24681002
[Presentation] 西部北太平洋における溶存有機物の光学的性質2013
- Author(s)
  山下洋平, 野坂裕一, 鈴木光次, 小川浩史, 高橋一生, 齊藤宏明
- Organizer
  日本地球惑星科学連合 2013年度連合大会
- Place of Presentation
  幕張メッセ（千葉市）
- Data Source
  KAKENHI-PROJECT-24681002
[Presentation] 西部北太平洋における溶存有機物の光学的性質2013
- Author(s)
  山下洋平, 野坂裕一, 鈴木光次, 小川浩史, 高橋一生, 齊藤宏明
- Organizer
  日本地球惑星科学連合 2013年度連合大会
- Place of Presentation
  千葉市
- Data Source
  KAKENHI-PLANNED-24121003
[Presentation] 2010年春季親潮珪藻ブルーム期における透明細胞外重合体粒子(TEP)分布の特徴2011
- Author(s)
  野坂裕一、鈴木光次、山下洋平, 他2名
- Organizer
  日本海洋学会2011年度春季大会
- Place of Presentation
  震災のため大会は中止。講演要旨での発表
- Data Source
  KAKENHI-PROJECT-22840002
[Presentation] Accumulation of　humic-like fluorescent dissolved organic matter in the Japan Sea Proper Water
- Author(s)
  Tanaka,K., K. Kuma, K. Hamasaki,T. Nagata, Y. Yamashita
- Organizer
  The 6th China-Japan-Korea IMBER symposium
- Place of Presentation
  東京
- Data Source
  KAKENHI-PLANNED-24121003
[Presentation] 日本海内部における腐植様蛍光物質の蓄積
- Author(s)
  田中和樹, 久万健志, 浜崎恒二, 山下洋平
- Organizer
  日本地球惑星科学連合 2014年度連合大会
- Place of Presentation
  パシフィコ横浜（横浜市）
- Year and Date
  2014-04-28 – 2014-05-02
- Data Source
  KAKENHI-PLANNED-24121003
[Presentation] 海洋細菌単離株による溶存有機物の生成に関する研究
- Author(s)
  後藤周史, 多田雄哉, 鈴木光次, 山下洋平
- Organizer
  日本海洋学会 2015年度春季大会
- Place of Presentation
  東京都
- Year and Date
  2015-03-21 – 2015-03-25
- Data Source
  KAKENHI-PROJECT-24681002
[Presentation] 日本海内部における腐植様蛍光物質の蓄積
- Author(s)
  田中和樹, 久万健志, 浜崎恒二, 山下洋平
- Organizer
  日本地球惑星科学連合 2014年度連合大会
- Place of Presentation
  横浜市
- Year and Date
  2014-04-28 – 2014-05-02
- Data Source
  KAKENHI-PROJECT-24681002

1. Miyazaki Yuzo (60376655)

# of Collaborated Projects: 3 results

# of Collaborated Products: 1 results
2. 鈴木光次 (40283452)

# of Collaborated Projects: 3 results

# of Collaborated Products: 4 results
3. SUGIMOTO Atsuko (50235892)

# of Collaborated Projects: 2 results

# of Collaborated Products: 1 results
4. IRINO Tomohisa (70332476)

# of Collaborated Projects: 2 results

# of Collaborated Products: 0 results
5. YONENOBU Hitoshi (20274277)

# of Collaborated Projects: 2 results

# of Collaborated Products: 0 results
6. Hirawake Toru (70311165)

# of Collaborated Projects: 2 results

# of Collaborated Products: 0 results
7. 西岡純 (90371533)

# of Collaborated Projects: 2 results

# of Collaborated Products: 23 results
8. 小畑元 (90334309)

# of Collaborated Projects: 2 results

# of Collaborated Products: 6 results
9. 安田一郎 (80270792)

# of Collaborated Projects: 2 results

# of Collaborated Products: 1 results
10. OHOTE Nobuhito (10233199)

# of Collaborated Projects: 1 results

# of Collaborated Products: 0 results
11. TOKUCHI Naoko (60237071)

# of Collaborated Projects: 1 results

# of Collaborated Products: 0 results
12. IWAHANA Go (70431327)

# of Collaborated Projects: 1 results

# of Collaborated Products: 0 results
13. KODAMA Yuuji (70186708)

# of Collaborated Projects: 1 results

# of Collaborated Products: 0 results
14. ISHII Yoshiyuki (40222955)

# of Collaborated Projects: 1 results

# of Collaborated Products: 0 results
15. OHOTA Takeshi (20152142)

# of Collaborated Projects: 1 results

# of Collaborated Products: 0 results
16. UZUKI Rikie (10241788)

# of Collaborated Projects: 1 results

# of Collaborated Products: 0 results
17. SAITO HIROAKI (30371793)

# of Collaborated Projects: 1 results

# of Collaborated Products: 7 results
18. TAKEMURA Toshihiko (90343326)

# of Collaborated Projects: 1 results

# of Collaborated Products: 0 results
19. YAMAMOTO Masanobu (60332475)

# of Collaborated Projects: 1 results

# of Collaborated Products: 2 results
20. Kameyama Sohiko (70510543)

# of Collaborated Projects: 1 results

# of Collaborated Products: 1 results
21. TANIMOTO Hiroshi (30342736)

# of Collaborated Projects: 1 results

# of Collaborated Products: 1 results
22. OGAWA Hiroshi (50260518)

# of Collaborated Projects: 1 results

# of Collaborated Products: 1 results
23. TSUNOGAI Urumu (50313367)

# of Collaborated Projects: 1 results

# of Collaborated Products: 1 results
24. Nomura Daiki (70550739)

# of Collaborated Projects: 1 results

# of Collaborated Products: 0 results
25. 石井雅男 (70354553)

# of Collaborated Projects: 1 results

# of Collaborated Products: 1 results
26. 橋濱史典 (80535807)

# of Collaborated Projects: 1 results

# of Collaborated Products: 4 results
27. Lopez Larry (20374712)

# of Collaborated Projects: 1 results

# of Collaborated Products: 0 results
28. 星野仏方 (80438366)

# of Collaborated Projects: 1 results

# of Collaborated Products: 0 results
29. 佐藤孝紀 (50235339)

# of Collaborated Projects: 1 results

# of Collaborated Products: 1 results
30. 薮下彰啓 (70371151)

# of Collaborated Projects: 1 results

# of Collaborated Products: 0 results
31. 大木淳之 (70450252)

# of Collaborated Projects: 1 results

# of Collaborated Products: 1 results
32. 中村知裕 (60400008)

# of Collaborated Projects: 1 results

# of Collaborated Products: 3 results
33. 三寺史夫 (20360943)

# of Collaborated Projects: 1 results

# of Collaborated Products: 2 results
34. 近藤能子 (40722492)

# of Collaborated Projects: 1 results

# of Collaborated Products: 2 results
35. 三角和弘 (10462889)

# of Collaborated Projects: 1 results

# of Collaborated Products: 1 results
36. 南秀樹 (60254710)

# of Collaborated Projects: 1 results

# of Collaborated Products: 1 results
37. 山口篤

# of Collaborated Projects: 0 results

# of Collaborated Products: 1 results
38. 田中雄大

# of Collaborated Projects: 0 results

# of Collaborated Products: 1 results
39. 平譯亨

# of Collaborated Projects: 0 results

# of Collaborated Products: 8 results
40. 真塩麻彩実

# of Collaborated Projects: 0 results

# of Collaborated Products: 1 results
41. 長谷川浩

# of Collaborated Projects: 0 results

# of Collaborated Products: 1 results
42. 阿部泰人

# of Collaborated Projects: 0 results

# of Collaborated Products: 1 results

yamashita youhei 山下 洋平

YAMASHITA Yohei 山下 洋平

山下 洋平 ヤマシタ ヨウヘイ

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陸域で生成される超難分解な燃焼起源有機物の海洋への移行および埋没過程の定量評価Principal Investigator

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海洋に存在する熱成有機物のミッシングソースの解明Principal Investigator

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Removal of recalcitrant dissolved black carbon from the deep ocean.Principal Investigator

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北太平洋中層水により長距離輸送される溶存鉄の起源と化学形態の解明Principal Investigator

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Evaluating the environmental dynamics of dissolved pyrogenic organic matter in the oceanPrincipal Investigator

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Detection of archaeal components in marine dissolved organic matterPrincipal Investigator

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yamashita youhei 山下洋平

YAMASHITA Yohei 山下洋平

山下洋平ヤマシタヨウヘイ