1 1 1 1 i 1 1 1 1 i 1 1 1 1 i 1 1 1 1 i 1 1 1 1 i 1 1 1 1 i 1 1 1 1 800 700 600 500 400 300 200 100

Thousands of years before present

Antarctic Ice-Core CO

Antarctic Ice-Core CO

Figure 1.13: Data from the Vostok and Epica Antarctic ice cores. The upper panel shows the variation in deuterium depletion of the ice, which is a proxy for temperature. Higher (less negative) values indicate warmer conditions. The lower panel gives the variation in the CO2 concentration in air bubbles trapped in the ice.

800 700 600 500 400 300 200 100 0

Thousands of years before present

Figure 1.13: Data from the Vostok and Epica Antarctic ice cores. The upper panel shows the variation in deuterium depletion of the ice, which is a proxy for temperature. Higher (less negative) values indicate warmer conditions. The lower panel gives the variation in the CO2 concentration in air bubbles trapped in the ice.

1.11. HOLOCENE CLIMATE VARIATION

Was this article helpful?

0 0

Post a comment