Abstract
Hot water drilling and mass-balance measurements were made on the Inland Ice at Pakitsoq north-east of Jakobshavn. Two arrays of moderate and shallow-depth thermistor strings have been installed in the ice to map the englacial temperature from the ice margin to the equilibrium line. Water fluctuations were observed in a drill hole connecting to the ice bed. The measurements indicate a high subglacial water pressure dose to the ice overburden pressure.
Highlights
Hot water drilling and mass-balance measurements were made on the Inland Ice at Påkitsoq north-east of Jakobshavn
Glaciological field work was carried out in 1990 on the Greenland ice sheet margin at Pakitsoq north-east of lakobshavn, West Greenland (Fig. 1)
The glaciological research in the Pakitsoq area was started by the Geological Survey of Greenland (GGU) in August 1982, to aid planning of hydro-electric power for Jakobshavn, and the continuous studies since have involved a number of different fjelds within glaciology (Thomsen et al, 1989)
Summary
Energy-balance measurements at the equilibrium line were made from a permanent field station on the ice. GGU provided basic data and advised in the logistic planning of the project as well as assisting in the reconnaissance and site selection for the station. A programme for ice-temperature measurements was set up by GGU in collaboration with the Swiss project. Lee drilling and englacial temperatures In May 1990 a thermistor string TS1 was drilled into the ice to a depth of 10 m dose to the ice margin near lake 326 (Fig. 1).
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