Studies on factors controlling spatial and temporal variations in volatile organic compounds in the Arctic Ocean

• Project/Area Number: 26281001
• Research Category: Grant-in-Aid for Scientific Research (B)
• Allocation Type: Partial Multi-year Fund
• Section: 一般
• Research Field: Environmental dynamic analysis
• Research Institution: Hokkaido University
• Principal Investigator: Yoshikawa Hisayuki 北海道大学, 地球環境科学研究科(研究院), 名誉教授 (60344496)
• Co-Investigator(Kenkyū-buntansha): 小杉 如央 気象庁気象研究所, 海洋・地球化学研究部, 研究官 (20553168) ; 村田 昌彦 国立研究開発法人海洋研究開発機構, 地球環境観測研究開発センター, チームリーダー (60359156) ; 亀山 宗彦 北海道大学, 地球環境科学研究科(研究院), 准教授 (70510543)
• Co-Investigator(Renkei-kenkyūsha): Ishii Masao 気象庁気象研究所, 海洋・地球化学研究部, 研究室長 (70354553)
• Research Collaborator: Sasano Daisuke
• Project Period (FY): 2014-04-01 – 2017-03-31
• Project Status: Completed (Fiscal Year 2016)
• Budget Amount: ¥16,380,000 (Direct Cost: ¥12,600,000、Indirect Cost: ¥3,780,000); Fiscal Year 2016: ¥2,470,000 (Direct Cost: ¥1,900,000、Indirect Cost: ¥570,000); Fiscal Year 2015: ¥5,070,000 (Direct Cost: ¥3,900,000、Indirect Cost: ¥1,170,000); Fiscal Year 2014: ¥8,840,000 (Direct Cost: ¥6,800,000、Indirect Cost: ¥2,040,000)
• Keywords: 環境分析 / 環境変動 / 北極海 / 揮発性有機化合物 / 海洋炭酸系 / 溶存メタン / 海洋メタン / 揮発性有機分子 / 炭酸系 / 海氷

Outline of Final Research Achievements

In the Arctic Ocean, surface area of sea-ice has been decreasing in summer season over a few decades due to the global warming, which could lead to positive or negative feedback to the climate system via variations in air-sea exchange of gases related to the climate. In order to clarify the air-sea exchange of volatile organic carbon (VOC), CH4, and CO2, measurements of VOC, CH4, and CO2 were made on board the R/V Mirai (Japan Agency for Marine-Earth Science and Technology) in the Arctic Ocean during the summer period from FY 2014 to FY2016. In Canada Basin we found the water originated from sea-ice melting (less saline water) plays an important role in reducing the air-sea exchange of gases by forming shallow and strong stratification, while active biological activities exist about 30 m below the surface.

Research Products

• [Int'l Joint Research] Korea Polar Research Institute(韓国)
• [Journal Article] The GEOTRACES intermediate data product 2014 (2015)
  • Author(s): GEOTRACES Group, Jun Nishioka, et al.
  • Journal Title: Marine Chemistry Volume: 177 Pages: 1-8
  • DOI: 10.1016/j.marchem.2015.04.005
  • Peer Reviewed / Open Access / Int'l Joint Research
• [Journal Article] High-resolution observations of dissolved isoprene in surface seawater in the Southern Ocean during austral summer 2010-2011 (2014)
  • Author(s): Kameyama, S., S. Yoshida, H. Tanimoto, S. Inomata, K. Suzuki, and H. Yoshikawa-Inoue
  • Journal Title: Journal of Oceanography Volume: 70 Pages: 225-239
  • NAID: 40020081535
  • Peer Reviewed / Open Access
• [Journal Article] Winter to summer evolution in surface water and air-sea CO2 flux in the seasonal ice zone in the Indian Sector of the Southern Ocean (2014)
  • Author(s): Nomura, D., H. Yoshikawa-Inoue, S. Kobayashi, S. Nakaoka, and G. Hashida
  • Journal Title: Biogeosciences Volume: 11 Issue: 20 Pages: 5749-5761
  • DOI: 10.5194/bg-11-5749-2014
  • Peer Reviewed / Open Access
• [Journal Article] 高時間分解能分析法を用いた海洋表層における揮発性有機化合物に関する研究 (2014)
  • Author(s): 亀山宗彦
  • Journal Title: 地球化学 Volume: 48 Pages: 53-66
  • NAID: 130004574779
  • Peer Reviewed / Open Access
• [Presentation] DMS(P) researches in the Arctic Ocean by collaboration between Japan and South Korea. (2017)
  • Author(s): Sohiko Kameyama, Mahomi Inagawa, Thi Ngoc Oanh Bui, Hiroshi Tanimoto, Koji Sugie, Shigeto Nishino, Jinyoung Jung, Eun Jin Yang, Sung-Ho Kang
  • Organizer: NETCARE Arctic DMS workshop
  • Place of Presentation: Sidney, British Columbia (Canada）
  • Year and Date: 2017-01-17
  • Int'l Joint Research
• [Presentation] Frequent column observations revealed low pCO2 water under the sea ice melt in the Canada Basin of the Arctic Ocean (2016)
  • Author(s): Naohiro Kosugi, Daisuke Sasano, Masao Ishii, Shigeto Nishino, Hiroshi Uchida, Hisayuki Yoshikawa-Inoue
  • Organizer: North Pacific Marine Science Organization 2016 annual meeting
  • Place of Presentation: San Diego, California （USA）
  • Year and Date: 2016-11-02
  • Int'l Joint Research
• [Presentation] Mapping of the air-sea CO2 flux in the Arctic Ocean and its adjacent seas: Basin-wide distribution and seasonal to interannual variability (2016)
  • Author(s): Sayaka Yasunaka, Akihiko Murata, Eiji Watanabe, Masao Ishii, Naohiro Kosugi, Shigeto Nishino, Daisuke Sasano, et al.
  • Organizer: North Pacific Marine Science Organization 2016 annual meeting
  • Place of Presentation: San Diego, California （USA）
  • Year and Date: 2016-11-02
  • Int'l Joint Research
• [Presentation] 大気海洋境界層における微量体動態の把握 －新規実験系を用いたアプローチ－ (2016)
  • Author(s): 亀山 宗彦、谷本 浩志、猪俣 敏、大森 裕子、笹野 大輔、石井 雅男、Bui Thi Ngoc Oanh、吉川 久幸
  • Organizer: 2016年度日本地球化学会年会
  • Place of Presentation: 大阪市立大学 （大阪府・大阪市）
  • Year and Date: 2016-09-14
  • Invited
• [Presentation] 安定同位体を用いた北極海におけるN2O 生成・消滅過程の解析 (2016)
  • Author(s): 柿本 嵩人、豊田 栄、吉田 尚弘、小杉 如央、笹野 大輔、石井 雅男、亀山 宗彦、稲川 満穂実、吉川 久幸、西野 茂人、村田 昌彦
  • Organizer: 2016年度日本地球化学会年会
  • Place of Presentation: 大阪市立大学 （大阪府・大阪市）
  • Year and Date: 2016-09-14
• [Presentation] 溶存硫化ジメチル濃度測定に用いられるサンプリング手法の再評価 (2016)
  • Author(s): 稲川 満穂実、亀山 宗彦、藤原 周、西野 茂人
  • Organizer: 2016年度日本地球化学会年会
  • Place of Presentation: 大阪市立大学 （大阪府・大阪市）
  • Year and Date: 2016-09-14
• [Presentation] Spatial Distribution of Dissolved Methane in the Western Arctic Ocean (2016)
  • Author(s): Kushi Kudo, Sakae Toyoda, Keita Yamada, Naohiro Yoshida, Daisuke Sasano, Naohiro Kosugi, Masao Ishii, Hisayuki Yoshikawa-Inoue, Akihiko Murata, Hiroshi Uchida, Shigeto Nishino
  • Organizer: 26th Goldschmidt Conference
  • Place of Presentation: 横浜国際平和会議場 （神奈川県・横浜市）
  • Year and Date: 2016-06-26
  • Int'l Joint Research
• [Presentation] チャクチ海とカナダ海盆域における海洋表層の二酸化炭素とメタンの分布及び変動要因 (2016)
  • Author(s): 石井雅男、笹野大輔、小杉如央、石戸谷重之、遠嶋康徳、安中さやか、内田裕、村田昌彦、西野茂人、菊地隆、工藤久志、豊田栄、亀山宗彦、吉川久幸
  • Organizer: GRENE北極気候変動研究事業研究成果報告会
  • Place of Presentation: 国立極地研究所 (東京都・立川市）
  • Year and Date: 2016-03-03
  • Invited
• [Presentation] Dissolved methane distribution in surface seawater and its controlling factors in mid- and high-latitudes in the Southern Ocean (2015)
  • Author(s): Bui Thi Ngoc Oanh, S. Kameyama, H. Yoshikawa-Inoue, M. Ishii, D. Sasano, K. Katsumata, H. Uchida
  • Organizer: 第6回極域シンポジウム
  • Place of Presentation: 国立極地研究所 (東京都・立川市）
  • Year and Date: 2015-11-16
• [Presentation] Continuous measurements of xCO2 and xCH4 in the seawater and overlying air in the western Arctic Ocean (2015)
  • Author(s): Sasano D., M. Ishii, N. Kosugi, A. Murata, H. Uchida, K. Kudo, S. Toyoda, K. Yamada, N. Yoshida, H. Y.oshikawa-Inoue, S. Nishino, T. Kikuchi
  • Organizer: The 18th WMO/IAEA Meeting on Carbon Dioxide, Other Greenhouse Gases, and Related Measurement Techniques (GGMT2015)
  • Place of Presentation: La Jolla, California (USA)
  • Year and Date: 2015-09-13
  • Int'l Joint Research
• [Presentation] Relationship between CH4 and CO2 in the surface seawater in the western Arctic Ocean (2015)
  • Author(s): Sasano D., M. Ishii, N. Kosugi, A. Murata, H. Uchida, S. Toyoda, K. Yamada, K. Kudo, N. Yoshida, T. Mifune, M. Yamamoto-Kawai, H. Yoshikawa-Inoue, S. Nishino, T. Kikuchi
  • Organizer: 4th International Symposium on the Arctic Research
  • Place of Presentation: 富山国際会議場 (富山県・富山市）
  • Year and Date: 2015-04-23
  • Int'l Joint Research
• [Presentation] Oceanic CO2 evolutions at the fixed stations in the Arctic in summer (2015)
  • Author(s): Kosugi, N., D. Sasano, M. Ishii, S. Nishino, J. Inoue, H. Yoshikawa-Inoue
  • Organizer: 4th International Symposium on the Arctic Research
  • Place of Presentation: 富山国際会議場 (富山県・富山市）
  • Year and Date: 2015-04-23
  • Int'l Joint Research
• [Presentation] Sea ice melt water hampers air-sea CO2 flux in the Arctic Ocean (2014)
  • Author(s): Kosugi, N., D. Sasano, M. Ishii, S. Nishino, H. Uchida, and H. Yoshikawa-Inoue
  • Organizer: The 5th Symposium on Polar Science
  • Place of Presentation: Tachikawa
  • Year and Date: 2014-12-02 – 2014-12-05
• [Presentation] Studies on volatile organic compounds in ocean surface by using high-resolution measurement methods (2014)
  • Author(s): Kameyama, S.
  • Organizer: The 17th HU-SNU Joint Symposium
  • Place of Presentation: Sapporo
  • Year and Date: 2014-11-27 – 2014-11-29
• [Presentation] Highly resolved distribution of dissolved volatile organic compounds in the western North Pacific in spring and summer (2014)
  • Author(s): Kameyama, S., H. Tanimoto, S. Inomata, and Y. Omori
  • Organizer: AOGS 11th Annual Meeting
  • Place of Presentation: Sapporo
  • Year and Date: 2014-07-28 – 2014-08-01
• [Presentation] Strong relationship between dimethyl sulfide and net community production in the western subarctic Pacific (2014)
  • Author(s): Kameyama. S., H. Tanimoto, S. Inomata, H. Yoshikawa-Inoue, U. Tsunogai, A. Tsuda, M. Uematsu, M. Ishii, D. Sasano, K. Suzuki, and Y. Nosaka
  • Organizer: 6th International Symposium on biological and environmental chemistry of DMS(P) and related compounds
  • Place of Presentation: Barcelona
  • Year and Date: 2014-05-26 – 2014-05-29
• [Presentation] Application of PTR-MS to an incubation experiment of the marine diatom Thalassiosira pseudonana (2014)
  • Author(s): Kameyama, S., H. Tanimoto, S. Inomata, K. Suzuki, D. D. Komatsu, A. Hirota, U. Konno, and Urumu Tsunogai
  • Organizer: 6th International Symposium on biological and environmental chemistry of DMS(P) and related compounds
  • Place of Presentation: Barcelona
  • Year and Date: 2014-05-26 – 2014-05-29
• [Book] 生物の科学 遺伝 (2014)
  • Author(s): 亀山宗彦
  • Total Pages: 524
  • Publisher: エヌ・ティー・エス
• [Remarks] Kameyama Laboratory
  • URL: http://geos.ees.hokudai.ac.jp/kameyama/
• [Remarks] 気象研究所海洋・地球化学研究部第三研究室
  • URL: http://www.mri-jma.go.jp/Dep/oc/oc_3.html
• [Remarks] 気象研究所海洋地球化学第三研究室
  • URL: http://www.mri-jma.go.jp/Dep/oc/oc_3.html
• [Remarks] KAMEYAMA Laboratory
  • URL: http://geos.ees.hokudai.ac.jp/kameyama/
• [Remarks] 吉川久幸のホームページ
  • URL: http://geos.ees.hokudai.ac.jp/hyoshika/index.html