ANSTO's research capabilities, led by the OPAL nuclear research reactor and associated instruments provide access to users investigating areas as diverse as materials, life sciences, climate change and mining/engineering.
Bomb 14C in tree rings from South East Asia and Australia
Studies have been conducted in South East Asia and Australia; regions where atmospheric bomb 14C data are rare.
| Pinus radiata from Armidale, Northern NSW. |
The results indicated bomb 14C levels in the troposphere decrease from north to south with a time delay of 0.5-1 year from the northern hemisphere temperate region to the tropics and a further 0.5-1 year from the tropics to the southern hemisphere temperate region. These new 14C data are very useful for the study of the global carbon cycle, atmospheric transport and air-sea exchange of CO2.
Project support
AINSE Grants 95/R143, 97/018R, 98/162R and 02/165
Project team members
Mike Barbetti (Faculty of Agriculture, Natural Resources and Environment, Naresuan University, Thailand) and Quan Hua (ANSTO).
Publications related to this project
Hua, Q., M. Barbetti, V.A. Levchenko, R.D. D’Arrigo, B.M. Buckley, and A.M. Smith (2012), Monsoonal influence on Southern Hemisphere 14CO2, Geophysical Research Letters, 39, L19806, doi:10.1029/2012GL052971.
Hua, Q., M. Barbetti, U. Zoppi, D.M. Chapman, and B. Thomson (2003), Bomb radiocarbon in tree-rings from northern New South Wales, Australia: Implications for dendrochronology, atmospheric transport and air-sea exchange of CO2, Radiocarbon, 45, 431-447.
Hua, Q., M. Barbetti, G.E. Jacobsen, U. Zoppi, and E.M. Lawson (2000), Bomb radiocarbon in annual tree rings from Thailand and Australia, Nuclear Instruments and Methods in Physics Research B, 172, 359-365.
Abstracts related to this project
Hua, Q., M. Barbetti, R. D’Arrigo, and A.M. Smith, Regional atmospheric circulation: Insights from bomb radiocarbon in Indonesian tree rings, The 19th International Radiocarbon Conference, 3-7 Apr 2006, Oxford, UK.
Hua, Q., M. Barbetti, and U. Zoppi, Bomb radiocarbon in tree rings from the tropical and southern hemisphere temperate regions, The 7th South Pacific Environmental Radioactivity Association Conference, 13-17 May 2002, Sydney, Australia.
Hua, Q., M. Barbetti, and U. Zoppi, Bomb radiocarbon in tree rings from northern NSW, The 7th Australasian Conference on Isotopes in the environment, 24-26 Sep 2001, Robertson, Australia.
Hua, Q., M. Barbetti, G.E. Jacobsen, U. Zoppi, and E.M. Lawson, Radiocarbon in annual tree rings from Thailand and Tasmania for the period AD 1952-1975, The 8th International Conference on AMS, 6-10 Sep 1999, Vienna, Austria.