Dominique can also be followed on Facebook here and @EastAntarctica on Twitter!
View her archived PolarConnect event from 18 April 2015 here.
What Are They Doing?
The movement of warmer ocean water through or around relatively cooler ice sheets has the potential to lead to increased melting of the ice sheets. This project will determine the potential vulnerability of key ice streams to the infiltration of warmer ocean water and whether this could explain any of the observed thinning of the ice sheet. It will provide important information about a particular section of the East Antarctic Ice Sheet and therefore will be critical for future ice sheet models and investigations into the ice sheet's contributions to sea levels.
Where Are They?
The research team will be traveling on-board the icebreaker Nathaniel B. Palmer. The expedition will begin in New Zealand or Australia and will travel along the East Antarctic Margin and return to Punta Arenas, Chile. The vessel is named after Nathaniel Palmer, the first American credited with sighting Antarctica. It can operate safely year-round in Antarctic waters, and is capable of supporting approximately four dozen scientists on expeditions that last for months. Learn more about life aboard the N.B. Palmer here.
Frank O. Nitsche received a MS in geophysics from the University of Kiel, Germany and a PhD from the University of Bremen, Germany. In 2001 he came to the Lamont-Doherty Earth Observatory of Columbia University where he started as a postdoctoral researcher and is now a research scientist. There he studies sediment processes and morphological conditions of the Hudson River Estuary and the Long Island Sound. In addition, he investigates the morphology of the Antarctic continental margin and is reconstructing the path of past ice streams and related sediment transport processes. He has participated in six expeditions to Antarctica and its surrounding Southern Ocean where he used acoustic mapping techniques and oceanographic measurements to understand past and present processes that shape the Antarctic continental margins and affect the ice sheet. He is involved in the creation of the International Bathymetric Chart of the Southern Ocean. Read more about Dr. Nitsche here.