Team BARIUM are going to be at Goldschmidt 2015 in Prague! Look out for our presentations…
Bates, S., Hendry, K.R. & Lear, C. (2015) Ba/Ca ratios in benthic foraminifera: species offsets, down-core preservation and the effect of cleaning (Thursday posters!)
Pyle, K.M., Hendry, K.R., Hall, I.R., Sherrell, R. & Meredith, M.P. (2015) Diatoms, Sea Ice and Sediment Fluxes: Relative Controls on Barium Cycling in the Southern Ocean (Tuesday 9.15am!)
Ice core records show that atmospheric carbon dioxide (pCO2), an important greenhouse gas that drives and amplifies climate change, varies naturally over a range of timescales. Biological productivity in the oceans is a major contributor to carbon drawdown, and an important factor controlling atmospheric pCO2. The Southern Ocean is linked with these climatic events, in part due to upwelling and subduction of deep waters during which carbon and heat are exchanged with the atmosphere, and partly because it plays an important role in the distribution of nutrients to a large portion of the modern ocean.
Project BARIUM aims to further the understanding of oceanic carbon storage over a range of timescales in the region of the West Antarctica Peninsula, the region experiencing the most rapid atmospheric and oceanic warming in recent decades. We will use components of the biogeochemical cycle of barium (Ba) to understand and investigate different aspects of carbon storage. The analyses will provide data suitable for testing hypotheses linking Southern Ocean circulation to global climate over a range of timescales, and linking the response in biogeochemical cycles to future climatic change.
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