DINSAR measurement of glacier motion in Antarctic Grove Mountain

Grove Mountain is an important nunatak region on East Antarctic Glacier that blocks the ice flow to- ward Lambert Glacier. The existence of nunataks and subglacial mountains leads to complex ice flow patterns, which are difficult to be measured by conventional ground-based methods. In this study, several JERS-1 and ERS-1/2 SAR images covering this area are used for 3-pass and 4-pass differential interferometric processing. The ice flow field of Grove Mountain and the eastern zone are derived and validated with related knowledge. The research shows that DINSAR is an effective method for meas- uring complex ice flow in Antarctic inland glacier. L-band DINSAR is more suitable for mid or fast ice flow than C-band over this region.

Grove Mountain is an important nunatak region on East Antarctic Glacier that blocks the ice flow toward Lambert Glacier. The existence of nunataks and subglecial mountains leads to complex ice flow patterns, which ere difficult to be measured by conventional ground-based methods. In this study, several JERS-1 end ERS-1/2 SAR images covering this area ere used for 3-pass end 4-pass differential interferometric processing. The ice flow field of Grove Mountain end the eastern zone ere derived and validated with related knowledge. The research shows that DINSAR is an effective method for meesuring complex ice flow in Antarctic inland glacier. L-band DINSAR is more suitable for mid or fast ice flow than C-bend over this region.