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Questions tagged [ice-sheets]

[ice-sheets] concerns questions on the large present and past continental scale ice sheets, such as Antarctica, Greenland, the Laurentide, Fennoscandian and Alpine ice sheets.

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Ice cores: how is Oxygen-18 isotopic variation converted to temperature changes?

The Dansgaard paper I've seen shows a roughly linear relationship between the delta-O18 in precipitation and mean annual temperature (at a given location). See Figure 3 in the paper. When converting ...
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How do scientists measure paleoclimatologic variables from icecaps?

I guess the key is to know gases concentration, which should be done finally with a mass spectrometer if I am not wrong. But how does the complete process work, from drilling to the final ...