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Glaciological data in support of the ice-coring project was collected from 1990-91. Radio-echo sounding was used to determine ice thickness and bedrock topography. Ice thickness ranged from 60 to 172 m in the upper half of the glacier. The 10 m borehole temperatures (4-day equilibration period) indicated that the ice is at the pressure melting point (0 + 0.4 C). Annual ablation (including snow, firn, and ice) measured at locations on the glacier during 1990-91 averaged 0.93 meters per year (m/yr). Densification processes proceed rapidly at the site, with densities exceeding 8.5 x 105 grams/cubic meter at depths of 14 meter below the surface. Ice velocity decreases in a downslope direction, ranging from 0.8 to 3.1 m/yr during the monitoring period. Mean air temperature monitored on the glacier from July11, 1990 to July 10, 1991 was -6.9 C.
