Sea Level Rise Seminar: 2021-06-22, Lizz Thomas

Sea Level Rise Seminar: 2021-06-22
Speaker: Lizz Thomas
Title: Ice cores and sea level rise – reconstructing surface mass balance and exploring the drivers of variability

Abstract: The Antarctic Ice Sheet is the largest reservoir of fresh water on the planet. Even small changes in its volume, either as melt or snowfall, can have significant impacts on global mean sea levels. Whilst there is growing evidence for accelerated melt in recent decades, it has long been assumed that the Antarctic snowfall was relatively constant. However, the snow accumulation recorded in Antarctic ice cores revealed significant increases in snowfall during the 20th century. Enough to mitigate sea-level rise by ~10 mm since 1901. But ice cores contain much more than just snowfall. In this presentation I will revisit the snowfall reconstructions and highlight some of the studies that have utilised this important dataset. I will also suggest some of the other ways in which ice cores can improve our understanding of the drivers of Antarctic mass balance and its contribution to sea level rise.

Видео Sea Level Rise Seminar: 2021-06-22, Lizz Thomas канала NASA Goddard Institute for Space Studies