A study on biogeochemical cycle in the marine environment using multi tracer dataset and general ocean circulation model

• Project/Area Number: 18310017
• Research Category: Grant-in-Aid for Scientific Research (B)
• Allocation Type: Single-year Grants
• Section: 一般
• Research Field: Environmental dynamic analysis
• Research Institution: Japan, Meteorological Research Institute
• Principal Investigator: HIROSE Hirose Japan, Meteorological Research Institute, 地球化学研究部, 部長 (70343895)
• Co-Investigator(Kenkyū-buntansha): AOYAMA Michio 気象研究所, 地球化学研究部, 主任研究官 (80343896) ; KOMURA Kazuhisa 金沢大学, 自然計測応用センター, 教授 (00110601) ; TSUMUNE Daisuke (財)電力中央研究所, 環境科学研究所, 主任研究員 (10371494) ; KUMAMOTO Yuichiro (独)海洋研究開発機構, 研究員 (70359157)
• Project Period (FY): 2006 – 2008
• Project Status: Completed (Fiscal Year 2008)
• Budget Amount: ¥18,390,000 (Direct Cost: ¥15,300,000、Indirect Cost: ¥3,090,000); Fiscal Year 2008: ¥5,460,000 (Direct Cost: ¥4,200,000、Indirect Cost: ¥1,260,000); Fiscal Year 2007: ¥7,930,000 (Direct Cost: ¥6,100,000、Indirect Cost: ¥1,830,000); Fiscal Year 2006: ¥5,000,000 (Direct Cost: ¥5,000,000)
• Keywords: 環境組成標準 / 標準溶液 / 環境化学 / 物質循環 / 環境分析 / 全炭酸 / 栄養塩 / 海水

Research Abstract

海洋研究開発機構 海洋地球研究船「みらい」が2003年から2004年に実施した南太平洋を含む世界一周航海ですでに得られたデータを組み込んだ、海洋のマルチトレーサーデータベースを完成させることができた。放射性セシウムの新しいソースタームと解像度を上げた海洋大循環モデルによる再現計算を行った。データベースを利用して解析したところ、^<239,240>Pu/^<137>Cs 比が、表層から水深約1000mまで指数関数的に増加していることを見出した。世界で始めて、南太平洋、南大西洋およびインド洋の薄明領域(水深100m-1000m)の粒子状配位子の分布を求めることができた。

Research Products

• [Journal Article] 239,240Pu/137Cs ratios in the water column of the North Pacific: a proxy of biogeochemical processes (2009)
  • Author(s): K. Hirose, M. Aoyama, P.P. Povinec
  • Journal Title: Journal of Environmental Radioactivity 100 Pages: 1-5
  • Peer Reviewed
• [Journal Article] ^<239,240>Pu/^<137>Cs ratios in the water column of the North Pacific : a proxy of biogeochemical processes (2009)
  • Author(s): Katsumi Hirose, Michio Aoyama, P. P. Povinec
  • Journal Title: Journal of Environment Radioactivity 100 Pages: 1-5
  • Peer Reviewed
• [Journal Article] Plutonium and 137Cs in surface water of the South Pacific Ocean (2007)
  • Author(s): K. Hirose, M. Aoyama, M. Fukasawa, C.S. Kim, K. Komura, P. P. Povinec, J. A. Sanchez-Cabeza
  • Journal Title: Science of the Total Environment 381 Pages: 243-255
  • Peer Reviewed
• [Journal Article] Plutonium and 137Cs in surface water of the South Pacific Ocean (2007)
  • Author(s): 0Hirose, K., M. Aoyama, M. Fukasawa, C.S. Kim, K. komura, P.P. Povinec, J.A. Sanchez-Cabeza
  • Journal Title: Science of the Total Environment 381 Pages: 243-255
  • Peer Reviewed
• [Presentation] Anthropogenic radionuclides in the central South Pacific: results of the SHOTS project (2008)
  • Author(s): K. Hirose, M. Aoyama, M. Fukazawa, Y. Hanajima, C.S. Kim, K. Komura, P.P. Povinec, J.A. Sanchez- Cabeza, S.A. Yim
  • Organizer: South Pacific Environmental Radioactivity Association Conference
  • Place of Presentation: University of Canterbury, Christchurch, New Zealand
  • Year and Date: 2008-11-24
• [Presentation] Anthropogenic radionuclides in the central South Pacific : results of the SHOTS project (中部南太平洋の人類起源放射性核種:SHOTSプロジェクトの結果について) (2008)
  • Author(s): K. Hirose, M. Aoyama, M. Fukazawa, Y. Hanajima, C. S. Kim, K. Komura, P. P. Povinec, J. A. Sanchez-Cabeza, S. A. Yim
  • Organizer: South Pacific Environmental Radioactivity Association Conference
  • Place of Presentation: University of Canterbury Christchurch, New Zealand
  • Year and Date: 2008-11-24
• [Presentation] 生物地球化学の指標としてのPu/137Cs比について (2008)
  • Author(s): 廣瀬勝己、青山道夫
  • Organizer: 2008年度日本海洋学会春季大会
  • Place of Presentation: 東京海洋大学品川キャンパス
  • Year and Date: 2008-03-28
• [Presentation] 北太平洋亜熱帯循環域でのセシウム137の長期挙動 (2008)
  • Author(s): 青山 道夫
  • Organizer: 第11回みらいシンポジウム
  • Place of Presentation: 横浜市立大学金沢八景キャンパス
  • Year and Date: 2008-03-14
• [Presentation] 3-D structure of 137Cs in the subtropical gyre in the North Pacific in 2002-2005 (2008)
  • Author(s): M. Aoyama, K. Hirose, T. Kawano
  • Organizer: 2008 SHOTS Workshop (Southern Hemisphere Ocean Tracer Studies: Tracer studies using ocean circulation models)
  • Place of Presentation: 電力中央研究所
  • Year and Date: 2008-01-31
• [Presentation] Long term behaviour of 137Cs in surface seawater in the global marine environment: HAM global data base results (2008)
  • Author(s): Y. Inomata, M. Aoyama, K. Hirose
  • Organizer: 2008 SHOTS Workshop (Southern Hemisphere Ocean Tracer Studies: Tracer studies using ocean circulation models)
  • Place of Presentation: 電力中央研究所
  • Year and Date: 2008-01-31
• [Presentation] Effects of two different iron sources on iron cycle in the subarctic North Pacific (2008)
  • Author(s): K. Misumi, D. Tsumune, T. Yoshimura, J. Nishioka, F.O. Bryan, K. Lindsay, J.K. Moore, S. C. Doney
  • Organizer: 2008 SHOTS Workshop (Southern Hemisphere Ocean Tracer Studies: Tracer studies using ocean circulation models)
  • Place of Presentation: 電力中央研究所
  • Year and Date: 2008-01-31
• [Presentation] Profiles of 137Cs in South Indian Ocean water along the 20°S latitude - an evidence for accumulation of pollutants in the subtropical gyre (2008)
  • Author(s): P.P. Povinec, M. Aoyama, M. Fukasawa, K. Hirose, K. Komura, J.A. Sanchez-Cabeza, J. Gastaud, M.Jeskovsky, I. Levy-Palomo, I. Sykora
  • Organizer: 2008 SHOTS Workshop (Southern Hemisphere Ocean Tracer Studies: Tracer studies using ocean circulation models)
  • Place of Presentation: 電力中央研究所
  • Year and Date: 2008-01-30
• [Presentation] 137Cs as a global tracer in the Ocean General Circulation Model (2008)
  • Author(s): D. Tsumune, M. Aoyama, K. Hirose, F. Bryan, K. Lindsay, G. Danabasoglu
  • Organizer: 2008 SHOTS Workshop (Southern Hemisphere Ocean Tracer Studies: Tracer studies using ocean circulation models)
  • Place of Presentation: 電力中央研究所
  • Year and Date: 2008-01-30
• [Presentation] 南太平洋の粒子状物質に含まれる配位子について (2007)
  • Author(s): 廣瀬 勝己
  • Organizer: 2007年度日本海洋化学会秋季大会
  • Place of Presentation: 琉球大学工学部
  • Year and Date: 2007-09-27
• [Presentation] 太平洋及びその縁辺海における海水中炭素14 のデータベースかの試み (2007)
  • Author(s): 熊本雄一郎、渡辺修一、深澤理郎、青山道夫、廣瀬勝己
  • Organizer: 2007年度日本海洋化学会秋季大会
  • Place of Presentation: 琉球大学工学部
  • Year and Date: 2007-09-26
• [Presentation] 太平洋及びその縁辺海における海水中炭素14のデータベース化の試み (2007)
  • Author(s): 熊本 雄一郎
  • Organizer: 2007年度日本海洋化学会秋季大会
  • Place of Presentation: 琉球大学工学部
  • Year and Date: 2007-09-26
• [Presentation] 南太平洋の海水中のプルトニウムの鉛直分布について (2007)
  • Author(s): 廣瀬勝己、C.S. Kim、S.A. Kim、青山道夫、小村和久、深澤理郎
  • Organizer: 2007年度日本地球化学会第54回年会
  • Place of Presentation: 岡山大学
  • Year and Date: 2007-09-19
• [Presentation] 南太平洋の海水中のプルトニウムの鉛直分布について (2007)
  • Author(s): 廣瀬 勝己
  • Organizer: 2007年度日本海洋化学会第54回年会
  • Place of Presentation: 岡山大学津島キャンパス
  • Year and Date: 2007-09-19
• [Presentation] The Vertical Distributions of the Strong Organic Ligand in the South Pacific Particulate Matter (2007)
  • Author(s): K. Hirose
  • Organizer: 2007 SHOTS Workshop (Southern Hemisphere Ocean Tracer Studies)
  • Place of Presentation: Marine Environment Laboratory, IAEA
  • Year and Date: 2007-06-26
• [Presentation] HAM2007 global version (2007)
  • Author(s): M. Aoyama, K. Hirose, Y. Inomata, J.A. Sanchez-Cabeza
  • Organizer: 2007 SHOTS Workshop (Southern Hemisphere Ocean Tracer Studies)
  • Place of Presentation: Marine Environment Laboratory, IAEA
  • Year and Date: 2007-06-26
• [Presentation] Status report of the HORP (Historical Oceanic Radiocarbon in the Pacific and its marginal seas) database: Part I (2007)
  • Author(s): Y. Kumamoto, M. Aoyama, K. Hirose
  • Organizer: 2007 SHOTS Workshop (Southern Hemisphere Ocean Tracer Studies)
  • Place of Presentation: Marine Environment Laboratory, IAEA
  • Year and Date: 2007-06-26
• [Presentation] Ultra low level deep water 137Cs measurements in the South Pacific: An algorithm of peak analysis prepared by summation of two gamma ray spectra measured by different detector (2007)
  • Author(s): K. Komura
  • Organizer: 2007 SHOTS Workshop (Southern Hemisphere Ocean Tracer Studies)
  • Place of Presentation: Marine Environment Laboratory, IAEA
  • Year and Date: 2007-06-26
• [Presentation] Long Term Behaviour of 137Cs in the Pacific Ocean and results of high density observation along P6 line in 2003 (2007)
  • Author(s): M. Aoyama, K. Hirose, Y. Hamajima, K. Komura, P.P. Povinec, J.A. Sanchez-Cabeza
  • Organizer: 2007 SHOTS Workshop (Southern Hemisphere Ocean Tracer Studies)
  • Place of Presentation: Marine Environment Laboratory, IAEA
  • Year and Date: 2007-06-25
• [Presentation] Vertical profiles of plutonium in the central South Pacific (2007)
  • Author(s): K. Hirose, C.S. Kim, S.A. Yim, M. Aoyama, M. Fukasawa, K. Komura, P.P. Povinecf, J.A. Sanchez-Cabeza
  • Organizer: 2007 SHOTS Workshop (Southern Hemisphere Ocean Tracer Studies)
  • Place of Presentation: Marine Environment Laboratory, IAEA
  • Year and Date: 2007-06-25
• [Presentation] Preliminary spatial distribution of 137Cs in South Indian Ocean waters (2007)
  • Author(s): P.P. Povinec, M. Aoyama, K. Hirose, J.A. Sanchez-Cabeza, J. Gastaud, M. Jeskovsky, I. Levy-Palomo, I. Sykora
  • Organizer: 2007 SHOTS Workshop (Southern Hemisphere Ocean Tracer Studies)
  • Place of Presentation: Marine Environment Laboratory, IAEA
  • Year and Date: 2007-06-25
• [Presentation] 太平洋におけるセシウム137の長期挙動 (2007)
  • Author(s): M. Aoyama, K. Hirose, K. Komura, P.P. Povinec, J.A. Sanchez-Cabeza, D. Tsumune
  • Organizer: Blue Earth'07 第10回みらいシンポジウム
  • Place of Presentation: パシフィコ横浜会議センター5階
  • Year and Date: 2007-03-09
• [Presentation] Simulated 137Cs distributions in the Pacific (2007)
  • Author(s): D. Tsumune, M. Aoyama, K. Hirose, F. Bryan, K. Lindsay, G. Danabasoglu
  • Organizer: 2007 SHOTS Workshop (Southern Hemisphere Ocean Tracer Studies)
  • Place of Presentation: Marine Environment Laboratory, IAEA
• [Presentation] 137Cs and Pu isotope distribution in the subtropical gyres in the Southern Hemisphere in 2003-2004 (2006)
  • Author(s): M. Aoyama, M. Fukasawa, K. Hirose, C.S. Kim, K. Komura, R.F.C.Mantoura, P.P. Povinec and J.A. Sanchez-Cabeza
  • Organizer: 2006 AGU Fall Meeting
  • Place of Presentation: San Francisco, CA, USA
  • Year and Date: 2006-12-13
• [Presentation] 太平洋における137Csとプルトニウムの分布について : BEAGLE2003の結果について (2006)
  • Author(s): 廣瀬勝己、青山道夫、小村和久
  • Organizer: 日本放射線影響学会第49回大会
  • Place of Presentation: 北海道大学
  • Year and Date: 2006-09-06
• [Book] Marine anthropogenic radiotracers in the Southern Hemisphere: New sampling and analytical strategies, in International Conference on Environmental Radioactivity: From Measurements and Assessments to Regulation, Book of Extended Synopses, IAEA-CN-145/017 (2007)
  • Author(s): J.A. Sanchez - Cabeza, M. Eriksson, J. Gastaud, S. H. Lee, I. Levy-Palomo, B. Oregioni, I. Osvath, S. Pezzoug. M. Aoyama, P. Povinec, P. Roos
  • Total Pages: 37
  • Publisher: IAEA, Vienna, Austria
• [Book] Southern Hemisphere Ocean Tracer Study (SHOTS): An overview and preliminary results, in Radionuclides in the Environment :International Conference on Isotopes in Environmental Studies: Aquatic Forum 2004, 25-29 October, Monaco, Radioactivity in the Environment, Vol. 8, ISBN-13: 978-0-08-044909-8, ISBN-10: 0-08-044909-3 (2006)
  • Author(s): M. Aoyama, M. Fukasawa, K. Hirose, R.F.C. Mantoura, P.P. Povinec, C.S. Kim, K. Komura
  • Publisher: Elsevier, Amsterdam, London
• [Book] Long Term Behaviour of 137Cs in the Global Marine Environment: Observations and Model Simulations, in Proceeding of the International Symposium on Environmental Modeling and Radioecology, ISBN 978-4-9980604-9-9 C3040 (2006)
  • Author(s): M. Aoyama, K. Hirose, K. Komura, R.F.C. Mantoura, P.P. Povinec, J.A. Sanchez-Cabeza, D. Tsumune
  • Publisher: nstitute for Environmental Sciences, Japan
• [Remarks]
  • URL: http://www.mri-jma.go.jp/Dep/ge/2006SHOTSworkshop.html
• [Remarks]
  • URL: http://www.mri-jma.go.jp/Dep/ge/2007SHOTSworkshop.html
• [Remarks]
  • URL: http://www.mri-jma.go.jp/Dep/ge/2008SHOTSworkshop.html
• [Remarks]
  • URL: http://www.mri-jma.go.jp/Dep/ge/2006SHOTSworkshop.html
• [Remarks]
  • URL: http://www.mri-jma.go.jp/Dep/ge/2007SHOTSworkshop.html
• [Remarks]
  • URL: http://www.mri-jma.go.jp/Dep/ge/2008SHOTSworkshop.html