Atmospheric Δ14C in the northern and southern hemispheres over the past two millennia : Role of production rate, southern hemisphere westerly winds and ocean circulation changes
The variations of atmospheric Δ14C over the past two millennia are classically attributed to changes in its production rate in the upper atmosphere, which in turn is related to changes in solar activity and the Earth's magnetic field. However, the potential contribution of atmospheric and oceanic circulation changes during this period has not been precisely quantified. This has been achieved here