Reconstruction of past 450 years sea temperature and salinity change using a big Porites coral in Palau

2009 Fiscal Year Final Research Report

• Project/Area Number: 18253001
• Research Category: Grant-in-Aid for Scientific Research (A)
• Allocation Type: Single-year Grants
• Section: 海外学術
• Research Field: Geography
• Research Institution: The University of Tokyo
• Principal Investigator: KAYANNE Hajime The University of Tokyo, 大学院・理学系研究科, 教授 (60192548)
• Co-Investigator(Renkei-kenkyūsha): YAMAGATA Toshio 東京大学, 大学院・理学系研究科, 教授 (50091400)
• Research Collaborator: NAKAMURA Nobuko 東京大学, 大学院・理学系研究科, 特任研究員
• Project Period (FY): 2006 – 2009
• Keywords: サンゴ年輪 / ENSO / 古気候 / 水温・塩分 / 酸素同位体比

Research Abstract

We collected coral cores from a big Poriets coral at Palau, and reconstructed past 100 years sea surface temperature and salinity changes by measuring oxygen stable isotope ratio and Sr/Ca ratio of the core samples. We showed high salinity signals during strong El Nino years at Palau. We also showed stable salinity condition through 20^<th> century at Palau whereas the sea temperature increased.

Research Products

• [Journal Article] Mode shift in the Indian Ocean climate under global warming stress (2009)
  • Author(s): Nakamura, N., Kayanne, H., Iijima, H., McClanahan, RT., Behera, KS., Yamagata, T.
  • Journal Title: Geophysical Research Letters 36 Pages: L23708
• [Journal Article] High sensitivity measurements of nitrogen isotopic ratios incoral skeletons from Palau, western Pacific : Temporal resolution and seasonal variation of nitrogen sources (2008)
  • Author(s): Uchida, A., Nishizawa, M., Shirai, K., Iijima, H., Kayanne, H., Takahata, N., Sano, Y.
  • Journal Title: Geochemical Journal 42 Pages: 255-262
• [Journal Article] GSJ炭酸塩標準物質 (JCp-1, JCt-1) の炭素および酸素安定同位体比地質調査研究報告 (2008)
  • Author(s): 中山裕郎・飯嶋寛子・中村修子・茅根創
  • Journal Title: 59 Pages: 461-466
• [Journal Article] Atmospheric Horizontal Resolution Affects Tropical Climate Variability in Coupled Models (2008)
  • Author(s): Navarra, A., S. Gualdi, S. Masina, S. Behera, J.-J. Luo, S. Masson, E. Guilyardi, P. Delecluse, T. Yamgata
  • Journal Title: Journal of Climate 21(4) Pages: 730-750
• [Journal Article] Extended ENSO Predictions Using a Fully Coupled Ocean-Atmosphere Model (2008)
  • Author(s): Luo, J.-J., S. Masson, S. Behera, T. Yamagata
  • Journal Title: Journal of Climate 21(1) Pages: 84093
• [Journal Article] Anomalous winter climate condidions in the Pacific rim during recent El Nino Modoki and El Nino events (2008)
  • Author(s): Weng, H., S. K. Behera, T. Yamagata
  • Journal Title: Climate Dynamics DOI10 Pages: 1007/s00382-008-0394-6
• [Journal Article] Intensified mid-Holocene Asian monsoon recorded in corals from Kikai Island (2007)
  • Author(s): Morimoto, M., Kayanne, H., Abe, O., McCulloch, M. T.
  • Journal Title: subtropical northwestern Pacific, Quaternary Research 67 Pages: 204-214
• [Presentation] Mode shift in the Indian Ocean through 20th century recorded in Kenyan coral (2010)
  • Author(s): Nakamura, N., Kayanne, H., Iijima, H., McClanahan, RT., Behera, KS., Yamagata, T.
  • Organizer: 2010 Ocean Sciences Meeting by American Geophysical Union
  • Place of Presentation: Portland OR, U.S.A.
  • Year and Date: 20100200
• [Presentation] ケニヤサンゴ年輪から復元された20世紀のインド洋モードシフト, 古海洋シンポジウム (2010)
  • Author(s): 中村修子・茅根創・飯嶋寛子・Timothy R. McClanahan・Swadhin K. Behera・山形俊男
  • Organizer: 東京大学海洋研究所
  • Year and Date: 20100100
• [Presentation] ケニヤのサンゴ年輪に記録された20世紀後半のインド洋のモードシフト (2009)
  • Author(s): 中村修子・茅根創・飯嶋寛子・McClanahan・Behera・山形俊男
  • Organizer: 第12回日本サンゴ礁学会
  • Place of Presentation: 沖縄県本部公民館
  • Year and Date: 20091100
• [Presentation] Decadal variability of IOD over the last 115 years recorded in Kenyan coral (2008)
  • Author(s): Kayanne, H., N. Nakamura, H. Iijima, T. R. McClanahan, S. K. Behera, T. Yamagata
  • Organizer: 2008 Western Pacific Geophysics Meeting, Cairns, Queensland
  • Place of Presentation: Australia
  • Year and Date: 20080700
• [Presentation] Past 100 years Inter-annual Sea Surface Salinity Changes in the Western Pacific Based on Coral Isotope Analysis (2008)
  • Author(s): Ijima, H., H. Kayanne, N. Nakamura
  • Organizer: 11th International Coral Reef Symposium, Fort Lauderdale
  • Place of Presentation: Florida, USA
  • Year and Date: 20080700
• [Presentation] Indian Ocean Dipole Index for the Last 115 Years Recorded in Kenyan Coral Annual Bands (2008)
  • Author(s): Kayanne, H., N. Nakamura, H. Iijima, T. R. McClanahan, S. K. Behera, T. Yamagata
  • Organizer: 11th International Coral Reef Symposium, Fort Lauderdale
  • Place of Presentation: Florida, USA
  • Year and Date: 20080700
• [Presentation] ケニヤのサンゴ年輪による過去115年間のインド洋ダイポールモードの復元 (2008)
  • Author(s): 中村修子・茅根創・飯嶋寛子・McClanahan, T. R.・Behera, S.・山形俊男
  • Organizer: バイオミネラリゼーションと石灰化-遺伝子から地球環境まで-
  • Place of Presentation: 東京大学海洋研
  • Year and Date: 20080600
• [Presentation] ケニヤのサンゴ年輪による過去115年間のインド洋ダイポールモードの復元 (2008)
  • Author(s): 茅根創・中村修子・飯嶋寛子・McClanahan, T. R.・Behera, S.・山形俊男
  • Organizer: 日本地球惑星科学連合2008年大会
  • Place of Presentation: 幕張
  • Year and Date: 20080500
• [Presentation] Holocene and Last Interglacial paleoceanography in the Pacific subtropical gyre from coral annual bands of Okinotori-shima Island (2007)
  • Author(s): Kayanne, H., Abe, S., Iijima, H., Nakamura, N.
  • Organizer: northwestern subtropical Pacific Ocean First International Sclerochronology Conference
  • Place of Presentation: St. Petersburg, USA
  • Year and Date: 20070700
• [Presentation] Recent salinity change in the western Pacific warm water pool reconstructed by coral paleo-salinometer (2007)
  • Author(s): Ijima, H., Kayanne, H., Abe, O., Morimoto, M., Yamagata, T.
  • Organizer: First International Sclerochronology Conference
  • Place of Presentation: St. Petersburg, USA
  • Year and Date: 20070700
• [Presentation] Indian Ocean Dipole index for the last 100 years recorded in Kenyan coral annual bands (2007)
  • Author(s): Kayanne, H., Nakamura, N., Iijima, H., McClanahan, T. R., Behera, S., Yamagata, T.
  • Organizer: First International Sclerochronology Conference
  • Place of Presentation: St. Petersburg, USA
  • Year and Date: 20070700
• [Book] サンゴ年輪年代学遺伝 (2008)
  • Author(s): 茅根創
  • Total Pages: 95-100
• [Remarks] ホームページ等