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Distribution of Tritium and {sup 137}CS in South Indian Ocean Waters - Implications of Water Transport Processes

Abstract

The World Ocean, and specifically the Indian Ocean, plays a significant role in the better understanding of the climate. The distribution of global fallout {sup 3}H, {sup 14}C, {sup 90}Sr, {sup 129}I and {sup 137}Cs in the seawater of the Indian Ocean, after their main injection from atmospheric nuclear weapons tests during the 1960s, have been investigated. Results obtained in the framework of the SHOTS (Southern Hemisphere Ocean Tracer Studies) project are evaluated and compared with previously published data. The enhanced {sup 3}H and {sup 137}Cs levels observed in the south Indian ocean indicate transport of water masses labelled with these radionuclides from the central Pacific Ocean via the Indonesian Seas to the Indian Ocean. The observed surface gradients and presence of several water masses in the south Indian ocean makes this ocean one of the most dynamic parts of the World ocean. (author)
Authors:
Povinec, P. P.; Jeskovsky, M.; Sykora, I.; [1]  Aoyama, M.; [2]  Gastaud, J.; Levy, I.; [3]  Hamajima, Y.; [4]  Hirose, K.; [5]  Sanchez-Cabeza, J. A. [6] 
  1. Comenius University, Faculty of Mathematics, Physics and Informatics, Bratislava (Slovakia)
  2. Meteorological Research Institute, Tsukuba (Japan)
  3. International Atomic Energy Agency, Marine Environment Laboratories (Monaco)
  4. Kanazawa University, Low-Level Radioactivity Laboratory, Nomi (Japan)
  5. Sophia University, Faculty of Science and Technology, Tokyo (Japan)
  6. Universitat Autonoma de Barcelona, Bellaterra (Spain)
Publication Date:
Jul 15, 2013
Product Type:
Conference
Report Number:
IAEA-CN-186/102
Resource Relation:
Conference: International Symposium on Isotopes in Hydrology, Marine Ecosystems and Climate Change Studies, Monaco (Monaco), 27 Mar - 1 Apr 2011; Other Information: 1 fig., 27 refs.; Related Information: In: Isotopes in Hydrology, Marine Ecosystems and Climate Change Studies. Vol. I. Proceedings of an International Symposium| 547 p.
Subject:
58 GEOSCIENCES; CARBON 14; CESIUM 137; CLIMATES; GLOBAL ASPECTS; GLOBAL FALLOUT; INDIAN OCEAN; IODINE 129; NUCLEAR EXPLOSIONS; PACIFIC OCEAN; SEAWATER; SOUTHERN HEMISPHERE; STRONTIUM 90; SURFACES; TRITIUM
OSTI ID:
22122056
Research Organizations:
International Atomic Energy Agency, Department of Nuclear Sciences and Applications, Vienna (Austria)
Country of Origin:
IAEA
Language:
English
Contract Number:
Project 26240220004
Other Identifying Numbers:
Other: ISSN 0074-1884; ISBN 978-92-0-135610-9; TRN: XA13R0813078167
Availability:
Also available on-line: http://www-pub.iaea.org/MTCD/publications/PDF/Pub1580_vol1_web.pdf; Enquiries should be addressed to IAEA, Marketing and Sales Unit, Publishing Section, E-mail: sales.publications@iaea.org; Web site: http://www.iaea.org/books
Submitting Site:
INIS
Size:
page(s) 89-95
Announcement Date:
Aug 27, 2013

Citation Formats

Povinec, P. P., Jeskovsky, M., Sykora, I., Aoyama, M., Gastaud, J., Levy, I., Hamajima, Y., Hirose, K., and Sanchez-Cabeza, J. A. Distribution of Tritium and {sup 137}CS in South Indian Ocean Waters - Implications of Water Transport Processes. IAEA: N. p., 2013. Web.
Povinec, P. P., Jeskovsky, M., Sykora, I., Aoyama, M., Gastaud, J., Levy, I., Hamajima, Y., Hirose, K., & Sanchez-Cabeza, J. A. Distribution of Tritium and {sup 137}CS in South Indian Ocean Waters - Implications of Water Transport Processes. IAEA.
Povinec, P. P., Jeskovsky, M., Sykora, I., Aoyama, M., Gastaud, J., Levy, I., Hamajima, Y., Hirose, K., and Sanchez-Cabeza, J. A. 2013. "Distribution of Tritium and {sup 137}CS in South Indian Ocean Waters - Implications of Water Transport Processes." IAEA.
@misc{etde_22122056,
title = {Distribution of Tritium and {sup 137}CS in South Indian Ocean Waters - Implications of Water Transport Processes}
author = {Povinec, P. P., Jeskovsky, M., Sykora, I., Aoyama, M., Gastaud, J., Levy, I., Hamajima, Y., Hirose, K., and Sanchez-Cabeza, J. A.}
abstractNote = {The World Ocean, and specifically the Indian Ocean, plays a significant role in the better understanding of the climate. The distribution of global fallout {sup 3}H, {sup 14}C, {sup 90}Sr, {sup 129}I and {sup 137}Cs in the seawater of the Indian Ocean, after their main injection from atmospheric nuclear weapons tests during the 1960s, have been investigated. Results obtained in the framework of the SHOTS (Southern Hemisphere Ocean Tracer Studies) project are evaluated and compared with previously published data. The enhanced {sup 3}H and {sup 137}Cs levels observed in the south Indian ocean indicate transport of water masses labelled with these radionuclides from the central Pacific Ocean via the Indonesian Seas to the Indian Ocean. The observed surface gradients and presence of several water masses in the south Indian ocean makes this ocean one of the most dynamic parts of the World ocean. (author)}
place = {IAEA}
year = {2013}
month = {Jul}
}