10:30 AM - 10:45 AM
[ACG31-17] Studies on changes of Greenland ice sheet under the East Greenland Ice Core Project (EGRIP)
Keywords:Greenland, Deep ice core, EGRIP, Ice sheet dynamics, Ice stream
Understanding of the mechanisms of basal sliding and ice deformation is prerequisite for better projections of the future changes of Greenland Ice Sheet and sea level rise. To understand the Greenland Ice Sheet dynamics, East Greenland Ice Core Project (EGRIP) was proposed by the University of Copenhagen. Japan, Germany, France and Switzerland have been invited to participate in this international project. Under EGRIP, a deep ice core to the bed will be drilled at the onset of the North Greenland Ice Stream (NEGIS), where horizontal flow velocity is expected to be several tens of kilometers per year. As NEGIS is the largest ice stream in Greenland, the EGRIP ice core will certainly advance our knowledge on the dynamics and past changes of Greenland Ice Sheet. The EGRIP core will also give us an ideal opportunity to reconstruct the climate and environment changes during the early Holocene, which was considered to be warmer than today and would be an excellent analogue to the future Greenland affected by global warming. The results from the EGRIP core will fill the gap of our knowledge due to the lack of the high resolution and detailed ice core records from early Holocene.