Project information
Project aim
10Be and 7Be are naturally-occurring radioactive isotopes produced in the Earth's atmosphere and surface by cosmic rays, at a rate controlled by the activity of the Sun (and other factors). 10Be is long-lived while 7Be 'decays' much more quickly. Using the Air-link we now have an opportunity to return ice core samples containing the short-lived 7Be isotope to Australia for measurement. This project proposes to use 10Be and 7Be measurements in Antarctic ice to improve our interpretation of past solar activity and better understand its linkage to global climate change.
Related publications
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Solar and climate influences on ice core 10Be records from Antarctica and Greenland during the neutron monitor area. Earth and Planetary Science Letters, 2012
(Ref: 14807)
Authors:Category 1: Peer-reviewed literature
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A decadal record of 10Be concentration at monthly resolution from Law Dome, Antarctica. XVIII INQUA Congress, Bern, Switzerland, 21-27 July 2011, 2011
(Ref: 14558)
Category 3: Poster
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The last deglaciation: timing the bipolar seesaw. Climate of the Past, 2011
(Ref: 14534)
Authors:Category 1: Peer-reviewed literature
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High-resolution records of the beryllium-10 solar activity proxy in ice from Law Dome, East Antarctica: measurement, reproducibility and principal trends. Climate of the Past, 2011
(Ref: 14533)
Category 1: Peer-reviewed literature
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10Be in Antarctic ice: Solar activity and climate signals observed and GCM-modelled at high resolution. Astronomical Society of Australia Annual Science Meeting 2010, Hobart, 5-8 July, 2010
(Ref: 14166)
Category 3: Poster
Changes in solar activity modulate the galactic cosmic ray flux, and in turn, the production rate of cosmogenic 10Be in the Earth’s atmosphere. The best archives of past changes in 10Be production rate are polar ice cores.