47 
Fig. 2. Estimated calf-ice discharge from Greenland ice sheet in km3 of water equv. per year. 
Compiled by Reeh, 1984. 
3.3. Loss by calving of icebergs 
The most extensive studies of iceberg discharge from the Greenland ice sheet are those of 
Bauer et al. (1968b) and Carbonnell and Bauer (1968), who determined the calf-ice production of 
the outflow glaciers calving into Disko Bugt and Umanak Fjord, west Greenland by means of 
repeated areal photography. The results of these two studies deviate by about 10% (90 km3 of 
ice pr. year in 1957, and 102 km of ice pr. year in 1964). 
Based on the investigations mentioned above and scattered information about calving gla- 
ciers in southwest Greenland, Weidick and Olesen (1978) estimate the total calf-ice production 
from west Greenland glaciers between 60N and 71N to be 97 km3 of water pr. year. As regards 
north and east Greenland very few observations of calving rates have been made. Olesen and 
Reeh (1969) give the calf-ice production from the northern part of the Scoresby Sund region to 
be 11 km3 of ice per year. 
