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Toward A Better Understanding Of Recent Warming Of The Central West Antarctic Ice Sheet From Shallow Firn Cores, Jessica Williams
Toward A Better Understanding Of Recent Warming Of The Central West Antarctic Ice Sheet From Shallow Firn Cores, Jessica Williams
Theses and Dissertations
Previous studies have shown significant warming through the 1990s in the West Antarctic Ice Sheet (WAIS); but the records used in those studies end in early 2000, preventing trend analysis into the latest decade. Fourteen new snowpits and firn cores were collected in 2010 and 2011, which have been combined with previous cores to extend the isotopic records over WAIS. Significance of these isotopic patterns across WAIS was determined and is used to re-evaluate the warming of the West Antarctic interior over recent decades. We find that isotopic records longer than 50 years are needed to assess climate trends due …