An oceanic cold reversal during the last deglaciation

A detailed deuterium excess profile measured along the Dome C EPICA (Europe an Project for ice Coring in Antarctica) core reveals the timing and streng th of the sea surface temperature changes at the source regions for Dome C precipitation. We infer that an Oceanic Cold Reversal took place in the sou thern Indian Ocean, 800 years after the Antarctic Cold Reversal. The temper ature gradient between the oceanic moisture source and Antarctica is simila r to the Dome C sodium profile during the deglaciation, illustrating the st rong link between this gradient and the strength of the atmospheric circula tion.