@phdthesis{Schlemm2022, author = {Schlemm, Tanja}, title = {The marine ice cliff instability of the Antarctic ice sheet}, doi = {10.25932/publishup-58633}, url = {http://nbn-resolving.de/urn:nbn:de:kobv:517-opus4-586333}, school = {Universit{\"a}t Potsdam}, pages = {107}, year = {2022}, abstract = {The Antarctic ice sheet is the largest freshwater reservoir worldwide. If it were to melt completely, global sea levels would rise by about 58 m. Calculation of projections of the Antarctic contribution to sea level rise under global warming conditions is an ongoing effort which yields large ranges in predictions. Among the reasons for this are uncertainties related to the physics of ice sheet modeling. These uncertainties include two processes that could lead to runaway ice retreat: the Marine Ice Sheet Instability (MISI), which causes rapid grounding line retreat on retrograde bedrock, and the Marine Ice Cliff Instability (MICI), in which tall ice cliffs become unstable and calve off, exposing even taller ice cliffs. In my thesis, I investigated both marine instabilities (MISI and MICI) using the Parallel Ice Sheet Model (PISM), with a focus on MICI.}, language = {en} }