ESS101C
Prof.
Jin-Yi Yu
Changes in Circulation of Deep Water During
Glaciations
qThe percentage of deep water originating in the North
Atlantic and flowing to the equator during the last 1.25 Myr has been consistently
lower during
glaciations than during interglaciations.
qIn general, southern-source
waters (deep
water formed near Antarctica) dominated tropical Atlantic waters during glaciations.
Northern-source water (deep water formed in the North Atlantic) dominated
tropical Atlantic
waters during interglaciations.
From Earth’s Climate: Past and Future