Rit (Vísindafélag Íslendinga) - 01.07.1931, Blaðsíða 14

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are so far fulure problems to us, but the most outstanding
and urgent ones seem to me to be the following:
1. To fix the position of a certain number of »skridjökuls«
in different regions and to control their variations from
year to year.
2. To measure the movements of the these skridjökuls, at
least in summer.
3. To study the climatological conditions of the glaciers
and their neighbourhood by permanent or temporary
meteorological stations in different heights. — These
stations will give the exact rate of the decrease of temp-
erature and the increase of precipitation with height.
4. To prepare detailed topographical maps of the glaciers,
seleded as chief research objects, and their immediate
surroundings.
5. To measure the ablation on the glacier surface in summer
by means of selfrecording instruments.
6. To measure the run off of the glacier rivers in order to
compare it with the assumed precipitaíion and ablation
in the respective glacier regions.1)
While making these investigations it should be borne in
mind that it is wise to limit the research work to a certain
number of selected glaciers and to obtain as satisfactory
results as possible in each place.
II. GLACIERS VISITED IN THE SUMMER 1930
With support from the »Náttúrufræðadeild menningarsjóðs
Islands« the present author made excursions to some glaciers
last summer for the purpose of fixing their present position, so
that future changes might be measured. The equipment was
quite insufficient, consisting only of a 20 m. cord with knots
at 2 m. intervals, a compass and a camera.
Measurements from fixing marks to the edge of the glacier
by means of a cord have been practised a good deal
1) H. W. Ahlmann: Projet d’un programme de recherches gleciaires.
Geografiska Annaler 1929 p. 313—320.