University thesis:
Dissertation, Georg-August-Universität Göttingen, 2021 (Kumulative Dissertation)
Footnote:
Description:
Instrumental observations of climate cover only the past ~200 years. Our knowledge about historical natural climate variability beyond this time is exclusively based on climate proxies, stored within natural archives. The polar ice sheets of Greenland and Antarctica have formed by continuous accumulation of snow over > hundred-thousand of years, recording local climate conditions such as the air temperature by means of the isotopic composition of the water molecules composing the snow and ice. However, in regions with very little snow accumulation, multiple processes hamper the interpretati...