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Results: 10
Delay in recovery of the Antarctic ozone hole from unexpected CFC-11 emissions
S. S. Dhomse, W. Feng, S. A. Montzka, R. Hossaini, J. Keeble, J. A. Pyle, J. S. Daniel, M. P. Chipperfield
Dec 22, 2020
Abstract: The Antarctic ozone hole is decreasing in size but this recovery will be affected by atmospheric variability and any unexpected changes in chlorinated source gas emissions. Here, using model simulations, we show that...
Radiocarbon offsets and old world chronology as relevant to Mesopotamia, Egypt, Anatolia and Thera (Santorini)
Sturt W. Manning, Lukas Wacker, Ulf Büntgen, Christopher Bronk Ramsey, Michael W. Dee, Bernd Kromer, Brita Lorentzen, Willy Tegel
Aug 17, 2020
Abstract: The new IntCal20 radiocarbon record continues decades of successful practice by employing one calibration curve as an approximation for different regions across the hemisphere. Here we investigate three radiocarbon...
Ascorbate oxidation by iron, copper and reactive oxygen species
Jiaqi Shen, Paul T. Griffiths, Steven J. Campbell, Battist Utinger, Markus Kalberer, Suzanne E. Paulson
Apr 01, 2021
Abstract: Ascorbic acid is among the most abundant antioxidants in the lung, where it likely plays a key role in the mechanism by which particulate air pollution initiates a biological response. Because ascorbic acid is a highly...
Radiocarbon offsets and old world chronology as relevant to Mesopotamia, Egypt, Anatolia and Thera (Santorini)
Sturt W. Manning, Lukas Wacker, Ulf Büntgen, Christopher Bronk Ramsey, Michael W. Dee, Bernd Kromer, Brita Lorentzen, Willy Tegel
Aug 17, 2021
Abstract: The new IntCal20 radiocarbon record continues decades of successful practice by employing one calibration curve as an approximation for different regions across the hemisphere. Here we investigate three radiocarbon...