Joint Usage/Research Center

Skip Navigation

go to english page


  • Home
  • About AORI
  • Faculty&Staff
  • Research Activities
  • Cooperative Research
  • Educational Activities
  • Access

GEOTRACES in full throttle: Progress in biogeochemical studies of trace elements and their isotopes in the Pacific and Indian Oceans

Update: 02. 18, 2016

(Mar. 28-29, 2016)

Research Meeting in Kashiwa Campus

Date: March 28, 2016 (Mon.) 13:00-17:50
         March 29, 2016 (Tue.)  9:30-16:30
Venue: Auditorium
Atmosphere and Ocean Research Institute (AORI), The University of Tokyo
             5-1-5 Kashiwanoha, Kashiwa-shi, Chiba 277-8564, JAPAN
             Tel: +81-4-7136-6009
Convener: Toshitaka Gamo (AORI, The University of Tokyo, Phone: 04-7136-6080, E-mail: gamo[at]
Contact Person at AORI: Toshitaka Gamo (AORI, The University of Tokyo, Phone: 04-7136-6080, E-mail: gamo[at] 

March 28 (Monday)
13:00-13:10  Opening remarks (T. Gamo (AORI, Univ. Tokyo))

Session 1: Trace elements in subarctic to arctic regions
 (Chair: K. Norisuye (Niigata Univ.))

13:10-13:30  1. Distribution of dissolved zinc in the western and central subarctic North Pacific (°Taejin Kim1, Hajime Obata1, Jun Nishioka2, and Toshitaka Gamo1 (1. Atmosphere and Ocean Research Institute, the University of Tokyo, 2. Institute of Low Temperature Science, Hokkaido University))

13:30-13:50  2. Distributions of trace metals (Mn, Fe, Ni, Zn and Cd) in the western Arctic Ocean (Chukchi Sea and Canada Basin) in summer 2012 (°Yoshiko Kondo1,2, Hajime Obata3, Nanako Hioki4, Atsushi Ooki4, Shigeto Nishino5, Takashi Kikuchi5, and Kenshi Kuma4 (1. National Institute of Polar Research, 2. Graduate School of Fisheries and Environmental Sciences, Nagasaki University, 3. Atmosphere and Ocean Research Institute, The University of Tokyo, 4. Faculty of Fisheries Sciences, Hokkaido University, 5. Japan Agency for Marine Earth Science and Technology))

13:50-14:10  3. Iron supply processes associated with sea ice and their roles in stimulating phytoplankton growth in the subarctic marginal sea, the Sea of Okhotsk (°Naoya Kanna, Takenobu Toyota, and Jun Nishioka (Institute of Low Temperature Science, Hokkaido University))

14:10-14:30  4. Biogeochemical cycle of iron in the western subarctic Pacific (°Jun Nishioka1, Hajime Obata2, and Shigenobu Takeda3 (1. ILTS, Hokkaido University, 2. AORI, The University of Tokyo, 3. Nagasaki University))

14:30-14:50  5. Observational study on dissolved iron transport along the shelf break in the southeastern Bering Sea (°T. Tanaka1, I. Yasuda1, K. Kuma2, and J. Nishioka3 (1. AORI, 2. Graduate School of Fisheries Science, Hokkaido Univ., 3. ILTS, Hokkaido Univ.))

(Coffee break)

Session 2: Trace elements in the Pacific Ocean
 (Chair: J. Nishioka (ILTS, Hokkaido Univ.))

15:10-15:30  6. Distributions of bismuth in the northern North Pacific: observations during the KH-12-4 Cruise. (°Kazuhiro Norisuye1, Kenta Takahashi1, Show Hasegawa1, Shotaro Takano2, Wataru Konagaya2, Yoshiki Sohrin2, Hajime Obata3, and Toshitaka Gamo3 (1. Niigata Univ., 2. ICR, Kyoto Univ., 3. AORI. Univ. Tokyo))

15:30-15:50  7. Distribution and stoichiometry of Al, Mn, Fe, Co, Ni, Cu, Zn, Cd, and Pb in seawater over the Juan de Fuca Ridge (°Linjie Zheng1, Tomoharu Minami1, Shotaro Takano1, Hideki Minami2, Yoshiki Sohrin1 (1. Institute for Chemical Research, Kyoto University, 2. School of Biological Sciences, Tokai University))

15:50-16:10  8. Distributions of dissolved trace metals (Mn, Fe, Co, Ni, Cu, Zn) along a 170ºW section in the Pacific Ocean (°Shigenobu Takeda (Graduate School of Fisheries and Environmental Sciences, Nagasaki University))

(Coffee break)

Session 3: Model analyses and atmosphere-ocean interaction
 (Chair: H. Obata (AORI, Univ. Tokyo))

16:30-16:50  9. Recent development of ocean iron cycle models (°Kazuhiro Misumi and Daisuke Tsumune (CRIEPI))

16:50-17:10  10. A modeling study on importance of boundary source for global distribution of REEs (°Akira Oka and Hajime Obata (Atmosphere and Ocean Research Institute, University of Tokyo))

17:10-17:30  11. Trace analysis of PFASs in oceanic air and water (°Eriko Yamazaki, °Ge Hui, Sachi Taniyasu, and Nobuyoshi Yamashita (National Institute of Advanced Industrial Science and Technology))

17:30-17:50  12. Chemical characteristic and its distribution of marine aerosols over the Indian Ocean (°Yasushi Narita, Daisuke Morimoto, and Mitsuo Uematsu (AORI, Utokyo))

(Buffet party at Foyer outside the Auditorium)

March 29 (Tuesday)

Session 4: Methodology and river waters
 (Chair: S. Takano (Inst. for Chemical Research, Kyoto Univ.))

09:30-09:50  13. Solid phase extraction with Electrodeless pH Controller (°Sayaka Nishigori1, Yanbei Zhu2, and Eiji Fujimori3 (1. SYSTEM INSTRUMENTS Co., Ltd., 2. National Institute of Advanced Industrial Science and Technology, 3. National Environmental Research and Training Institute))

09:50-10:10  14. Dissolved platinum in river water and sea water around Tokyo Bay and Otsuchi Bay in Japan (°Asami Suzuki Mashio, Hajime Obata, Hiroshi Ogawa, Hideki Fukuda, and Toshitaka Gamo (Atmosphere and Ocean Research Institute, the University of Tokyo))

10:10-10:30  15. Effect of the molecular properties and origin of dissolved organic matter on the speciation of trace metals in natural and engineered waters (°T. Kikuchi, M. Fujii, and C. Yoshimura (Graduate School Eng., Tokyo Inst. Technol.))

(Coffee break)

Session 5: Isotopes of trace elements
 (Chair: Y. Kondo (Grad. School of Fish. and Environ. Sci., Nagasaki Univ.))

10:50-11:10  16. Distribution of U-236 in the North Pacific Ocean (°Rosmarie Eigl1, Aya Sakaguchi2, Kohei Sakata1, Hisao Nagai3, Hirofumi Tazoe4, and Peter Steier5 (1. Graduate School of Science, Hiroshima University, 2. Faculty of Pure and Applied Science, University of Tsukuba, 3. College of Humanities and Sciences, Nihon University, 4. Institute of Radiation Emergency Medicine, Hirosaki University, 5. VERA Isotope Research, University of Vienna))

11:10-11:30  17. Determination of Dissolved Nickel, Copper, Zinc Isotope Ratios in Seawater and its Application to Seawater Samples Collected in the Western North Pacific (°S. Takano1, W. Uehara1, M. Tanimizu2, T. Hirata3, K. Shin4, and Y. Sohrin1 (1. Inst. for Chemical Research, Kyoto Univ., 2. Kwansei Gakuin Univ., 3. Kyoto Univ., 4. Research Inst. for Humanity and Nature))

11:30-11:50  18. Distribution of Be isotopes in the Indian and Pacific Oceans (°T. Yamagata1, H. Nagai1, D. Onozaki2, Y. Masuda2, K. Inoue2, Y. Matsui2, and H. Tazoe3 (1. College of Humanities and Sciences, Nihon University, 2. Graduate School of Integrated Basic Sciences, Nihon University, 3. Institute of Radiation Emergency Medicine, Hirosaki University))

11:50-12:10  19. Stable carbon isotopic ratio of dissolved inorganic carbon as chemical tracer:_a review (°Yuichiro Kumamoto and Akihiko Murata (JAMSTEC))

12:10-12:30  20. Distribution of helium isotopes in deep seawater in the Mariana area (N. Kinoshita1, °N. Takahata1, S. Kawagucci2, T. Kagoshima1, K. Tanaka1 and Y. Sano1 (1. AORI, Univ. Tokyo, 2. JAMSTEC))

(Lunch hour)

Session 6: Marine sediments
 (Chair: T. Yamagata (College of Humanities and Sciences, Nihon Univ.)

13:30-13:50  21. Determination of Stable Isotope Ratio of Molybdenum and Tungsten in Marine Sediments (°M. Tsujisaka1, S. Takano1, R. Murata1, T. Hirata2, and Y. Sohrin1 (1. Institute for Chemical Research, Kyoto Univ., 2. Graduate School of Science, Kyoto Univ.))

13:50-14:10  22. Distribution of biophile elements and metals in surface sediments of the Pacific Ocean. (°H. Minami1, T. Sasao1, K. Sakata2, Y. Nakaguchi3 and H. Obata4 (1. Tokai Univ., Biol. Sci., 2. Hiroshima Univ. Sci., 3. Kinki Univ., Sci. Engineer., 4. Univ. Tokyo, Atom. Ocean. Res. Inst.))

14:10-14:30  23. Radiocesium contamination in sea-floor sediments off Fukushima: its interannual variations in inventory since the nuclear power plant accident in 2011. (°Yoshihisa Kato (School of Marine Science and Technology, Tokay Univ.))

(Coffee break)

Session 7: International GEOTRACES updated: 1-st GEOTRACES Subcommittee Meeting of Science Council of Japan (23rd term)
   Introductory remarks on the GEOTRACES subcommittee of Science Council of Japan
       (T. Gamo, AORI, Univ. Tokyo)
   Reports on the GEOTRACES Science Steering Committee and related matters
       (H. Obata, AORI, Univ. Tokyo)
   Reports on the GEOTRACES Data Management Committee and related matters
       (J. Zhang, Toyama Univ.)
   Information on recent and forthcoming GEOTRACES cruises
   Domestic website, mailing list, data archive, etc.
~16:30   Closing of the meeting

Joint Usage

Research meeting