Abstract
As part of the GGU programme of investigations in connection with hydropower in West Greenland, glaciological and dimatological measurements were continued at Qamanârssâp sermia (inventory number 1CH21002) in 1982. The station was first established in late summer 1979 so that records for three complete summers 1980-1982 are now available. Brief reports on the work have been given by Olesen (1981) and Olesen & Braithwaite (1982) while a more detailed field report and data summary for 1979-1981 is given by Braithwaite & Olesen (1982). A similar report for 1982 is now in preparation. The sketch map in figure 44 shows the lower glacier together with locations of stakes and survey points. It should be noted that the three highest stakes, numbered 013, 015 and 016, are located off the map to the north-east of Stake 012.
Highlights
The 1980 summer had the highest mean temperature and the lowest total ablation of the three summers. This might seem to be in contradiction to the fact that daily ablation is quite strongly correlated with temperature for each of the three summers
() = adjusted to full month more detailed analysis of this effect will be attempted in the future, especially to test conc1usions made by Braithwaite (1981) on the basis of data from Arctic Canada
The data are in moderate agreement with values calculated using standard engineering formulae, e.g. the Thornthwaite and Penman methods, so that rough estimates of the regional distribution of potential evaporation in West Greenland can be made soon. This will be useful because evaporation constitutes a loss of water
Summary
Precipitation and sunshine duration at the base camp, together with ablation at the three '751' stakes, are compared with those from previous years in Table 5. an average, the 1982 summer was the coldest of the three, while with respect to precipitation and sunshine duration it was intermediate. An average, the 1982 summer was the coldest of the three, while with respect to precipitation and sunshine duration it was intermediate. The 1980 summer had the highest mean temperature and the lowest total ablation of the three summers. This might seem to be in contradiction to the fact that daily ablation is quite strongly correlated with temperature for each of the three summers. The corresponding regression equations are remarkably similar to each other they are not identical; the temperature-response of ablation in 1980 was low enough to offset the higher temperature compared to 1982.
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