ESS101C
Prof.
Jin-Yi Yu
Changes in North Atlantic Deep Water
qThe carbon isotope trend
provides clear
evidence that there was a link between the size of northern hemisphere ice sheets and the formation of deep water in the North Atlantic nearby.
qLess deep water formed in the North Atlantic every time ice sheets grew larger at the
100,000-year cycle
after 0.9 Myr ago.
qMore deep water formed when ice sheets were small.
From Earth’s Climate: Past and Future