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IPA Global Geocryological Database: GGD288
Section of Physical Geography
Department of Geography
University of Zurich
Tel. ++41 1 635 51 39
Fax. ++41 1 635 68 48
Section of Glaciology
Laboratory of Hydraulics Hydrology and Glaciology
Federal Institut of Technology
Tel. ++41 1 632 40 94
Fax. ++41 1 632 11 92
Upper Engadin, Eastern Swiss Alps
latitude: 46 22' N and 46 33'
longtitude: 9 44' E and 9 58'
Inventory of rock glaciers: 07.09.1988
The investigated region is called Upper Engadin and is situated in the Eastern part of the Swiss Alps. The area is characterized by a high situated valley floor with an average altitude of 1700 m a.s.l. This valley has a very smooth slope in the direction from SW to NE and is characterized by the river Inn and some larger lakes (Lake Sils, Lake Silvaplana, Lake Champfer and Lake St. Moritz). At uppermost part the valley breaks sharply down to the valley of the Maira river in the Bergell mountains. Three categories of rock glaciers were mapped: a) 97 active rock glaciers, b) 47 inactive rock glaciers and c) 26 fossil or relictic rock glaciers. The mapping was performed with Infrared aerial photographs taken by the Swiss Federal Office of Cadastral Surveys (Vermessungsdirektion). The scale of the photographs is around 1:52000. The data are described in Hoelzle (1989, unpublished). Data included on the CAPS CD-ROM Version 1.0 include type, elevation, length/width, exposition, and position.
The following parameters of each rock glacier were measured:
Front elevation [m a.s.l.],
source elevation [m a.s.l.],
coordinates [Swiss national system]
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Hoelzle, M. 1989. Untersuchungen zur Permafrostverbreitung im Oberengadin. Diploma thesis at the ETH-Zurich. 79 p. Unpublished.
Hoelzle, M. 1998. Rock Glaciers,Upper Engadin, Switzerland. In: International Permafrost Association, Data and Information Working Group, comp. Circumpolar Active-Layer Permafrost System (CAPS), version 1.0. CD-ROM available from National Snow and Ice Data Center, email@example.com. Boulder, Colorado: NSIDC, University of Colorado at Boulder.