Not exact matches
Indeed the ice cores show a remarkable (
near) linear response of CO2 to temperature changes, be it overall ~ 8 ppmv / K for the 420,000 years
Vostok ice core, where K more or less reflects the SH ocean temperature.
But in the
near by
Vostok location, for many centuries, there has been absolutely no sign of the MWP?
Over East Antarctica, most of the reconstructions and the station data are in agreement, showing
near - zero trends for coastal East Antarctica and some positive trends inland, around
Vostok and the South Pole.
A few additions: — While coastal ice cores reflect the temperatures of the nearby Southern Ocean (via dD and d18O proxies), the deep inland, high altitude, ice cores of
Vostok and Epica Dome C reflect the ocean temperatures for
near the whole SH.
The
Vostok ice core proxy record shows that there has been substantial variability in temperature
near the south pole throughout the Holocene.