Unteraar Glacier

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Caspar Wolf :
The Lauteraar Glacier , 1776
Unteraar Glacier. Aerial view from the east
Joseph Bettannier : Glacier inférieur de l'Aar . In: Louis Agassiz: Études sur les glaciers , 1840
Oberaar glacier (left) and Unteraar glacier (right), in the foreground the dark blue Trübenensee

The Unteraar Glacier is the larger of the two source glaciers of the Aare in the Bernese Oberland . It arises from the union of the Finsteraar Glacier and the Lauteraar Glacier ( see Aar Glacier ) at the so-called downswing and flows about 6 km in an easterly direction down to the Grimselsee in the uppermost Haslital .

Today's Unteraar Glacier and especially its clean northern inlet, the Lauteraar Glacier (“Klarer Aare Glacier”) was one of the sights of Switzerland in the Baroque period and, since 1827, the first research object of the newly emerging glacier research or glaciology . Worked here Franz Joseph Hugi and 1840 Louis Agassiz .

The illustration by Joseph Bettannier shows that the Unteraar Glacier had its central moraine as early as 1840, which was unsightly for tourists, but highly interesting for researchers.

The large boulder that Caspar Wolf painted in 1775 or 1776 was also located on the Unteraar Glacier , which from 1840 served as the “Hotel des Neuchatelois” as a shelter for researchers and has now disappeared in Lake Grimsel.

The edge of the Unteraar glacier was 560 m lower in the 19th century and is still around 400 m lower than that of the Oberaar glacier today .


Web links

Commons : Unteraargletscher  - Collection of pictures, videos and audio files

Individual evidence

  1. ^ Profile of the painting "The Lauteraar Glacier" at the Basel Art Museum
  2. Louis Agassiz: Ètudes sur les glaciers (Glacier Studies ), Appendix: Explication des planches (explanation of the images). Planche 14: Glacier inférieur de l'Aar, partie supérieure, avec la cabane de M. Hugi (Unteraar glacier, upper section with the hut Mr. Hugis)

Coordinates: 46 ° 34 '  N , 8 ° 13'  E ; CH1903:  659843  /  157377