Fig. 1

Location of the study area in Coats Land, East Antarctica. The study area is situated in the middle of the northern tributary of the Slessor Glacier, 20 km east of the Theron Mountains. Data for the RADARSAT mosaic images (a) and (b) are from the National Snow and Ice Data Center (http://nsidc.org/data/radarsat/ramp_basics/basics.html). (b) Enlargement of the area shown by the rectangle in (a). (c) ERS-1/2 SAR image of the study area, as outlined by the rectangle in (b).