Tritium, radiocarbon, 90Sr and 129I in the Pacific and Indian Oceans

P. P. Povinec; S. H. Lee; L. Liong Wee Kwong; B. Oregioni; A. J.T. Jull; W. E. Kieser; U. Morgenstern; Z. Top

doi:10.1016/j.nimb.2009.10.136

Tritium, radiocarbon, ⁹⁰Sr and ¹²⁹I in the Pacific and Indian Oceans

P. P. Povinec, S. H. Lee, L. Liong Wee Kwong, B. Oregioni, A. J.T. Jull, W. E. Kieser, U. Morgenstern, Z. Top

Geosciences

Research output: Contribution to journal › Article › peer-review

44 Scopus citations

Abstract

Anthropogenic radionuclides have been widely used to investigate water circulation on regional and global scales. We observed that ³H, ¹⁴C, ⁹⁰Sr and ¹²⁹I concentrations in surface water of the Indian Ocean are similar to those measured in the North-western Pacific Ocean. This is due to the transport of water masses from the North-western Pacific via the Indonesian Seas to the Indian Ocean. The observed variations of radionuclide concentrations with latitude in the Indian Ocean are not due to deposition patterns of global fallout, but due to different water masses present in the region. Higher radionuclide concentrations observed in the South Indian Ocean in the latitudinal belt of 20-40°S are associated with the Indian Ocean Subtropical gyre, which acts as a reservoir of radionuclides.

Original language	English (US)
Pages (from-to)	1214-1218
Number of pages	5
Journal	Nuclear Instruments and Methods in Physics Research, Section B: Beam Interactions with Materials and Atoms
Volume	268
Issue number	7-8
DOIs	https://doi.org/10.1016/j.nimb.2009.10.136
State	Published - Apr 2010

Keywords

I
Indian Ocean
Pacific
Radiocarbon
Seawater
Tritium

ASJC Scopus subject areas

Nuclear and High Energy Physics
Instrumentation

Access to Document

10.1016/j.nimb.2009.10.136

Cite this

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title = "Tritium, radiocarbon, 90Sr and 129I in the Pacific and Indian Oceans",

abstract = "Anthropogenic radionuclides have been widely used to investigate water circulation on regional and global scales. We observed that 3H, 14C, 90Sr and 129I concentrations in surface water of the Indian Ocean are similar to those measured in the North-western Pacific Ocean. This is due to the transport of water masses from the North-western Pacific via the Indonesian Seas to the Indian Ocean. The observed variations of radionuclide concentrations with latitude in the Indian Ocean are not due to deposition patterns of global fallout, but due to different water masses present in the region. Higher radionuclide concentrations observed in the South Indian Ocean in the latitudinal belt of 20-40°S are associated with the Indian Ocean Subtropical gyre, which acts as a reservoir of radionuclides.",

keywords = "I, Indian Ocean, Pacific, Radiocarbon, Seawater, Tritium",

author = "Povinec, {P. P.} and Lee, {S. H.} and Kwong, {L. Liong Wee} and B. Oregioni and Jull, {A. J.T.} and Kieser, {W. E.} and U. Morgenstern and Z. Top",

year = "2010",

month = apr,

doi = "10.1016/j.nimb.2009.10.136",

language = "English (US)",

volume = "268",

pages = "1214--1218",

journal = "Nuclear Instruments and Methods in Physics Research, Section B: Beam Interactions with Materials and Atoms",

issn = "0168-583X",

publisher = "Elsevier B.V.",

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TY - JOUR

T1 - Tritium, radiocarbon, 90Sr and 129I in the Pacific and Indian Oceans

AU - Povinec, P. P.

AU - Lee, S. H.

AU - Kwong, L. Liong Wee

AU - Oregioni, B.

AU - Jull, A. J.T.

AU - Kieser, W. E.

AU - Morgenstern, U.

AU - Top, Z.

PY - 2010/4

Y1 - 2010/4

N2 - Anthropogenic radionuclides have been widely used to investigate water circulation on regional and global scales. We observed that 3H, 14C, 90Sr and 129I concentrations in surface water of the Indian Ocean are similar to those measured in the North-western Pacific Ocean. This is due to the transport of water masses from the North-western Pacific via the Indonesian Seas to the Indian Ocean. The observed variations of radionuclide concentrations with latitude in the Indian Ocean are not due to deposition patterns of global fallout, but due to different water masses present in the region. Higher radionuclide concentrations observed in the South Indian Ocean in the latitudinal belt of 20-40°S are associated with the Indian Ocean Subtropical gyre, which acts as a reservoir of radionuclides.

AB - Anthropogenic radionuclides have been widely used to investigate water circulation on regional and global scales. We observed that 3H, 14C, 90Sr and 129I concentrations in surface water of the Indian Ocean are similar to those measured in the North-western Pacific Ocean. This is due to the transport of water masses from the North-western Pacific via the Indonesian Seas to the Indian Ocean. The observed variations of radionuclide concentrations with latitude in the Indian Ocean are not due to deposition patterns of global fallout, but due to different water masses present in the region. Higher radionuclide concentrations observed in the South Indian Ocean in the latitudinal belt of 20-40°S are associated with the Indian Ocean Subtropical gyre, which acts as a reservoir of radionuclides.

KW - I

KW - Indian Ocean

KW - Pacific

KW - Radiocarbon

KW - Seawater

KW - Tritium

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