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Data Set ID:
GGD288

Rock glaciers, Upper Engadin, Switzerland, Version 1

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 asl. 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 upper most part the valley breaks sharply down to the valley of the Maira river in the Bergell mountains. There were mapped three categories of rock glaciers. 1) 97 active rock glaciers, 2) 47 inactive rock glaciers and 3) 26 fossil or relict 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 to 52000. The data are described in Hoelzle (1989, unpublished). The following parameters of each rock glacier were measured. Front elevation [m asl], source elevation [m asl], length [m], width [m], front exposition, source exposition, and coordinates [Swiss national system]. These data are presented on the CAPS Version 1.0 CD-ROM, June 1998.

Geographic Coverage

Parameter(s):
  • Frozen Ground > Periglacial Processes
  • Frozen Ground > Rock Glaciers
Spatial Coverage:
  • N: 46.55, S: 46.367, E: 9.967, W: 9.733

Spatial Resolution: Not Specified
Temporal Coverage:
  • 1 July 1988 to 31 July 1988
Temporal Resolution: Not specified
Data Format(s):
  • ASCII Text
Platform(s) Not specified
Sensor(s): Not specified
Version: V1
Data Contributor(s): Martin Hoelzle
Data Citation

As a condition of using these data, you must cite the use of this data set using the following citation. For more information, see our Use and Copyright Web page.

Hoelzle, M 1998. Rock glaciers, Upper Engadin, Switzerland, Version 1. [Indicate subset used]. Boulder, Colorado USA. NSIDC: National Snow and Ice Data Center. [Date Accessed].

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Notice: 

This data set was first published on the 1998 CAPS CD.
The text for this document was taken unchanged from that CD.

Detailed Data Description

Coverage of data set

Study location:

Upper Engadin, Eastern Swiss Alps

Geographic extent - Describe the corners of the box representing data coverage:

latitude: 46 22' N and 46 33'
longtitude: 9 44' E and 9 58'

Period of investigation - Years covered

Inventory of rock glaciers: 07.09.1988

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Summary Description - Brief details of site type, data collection techniques, parameters

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.],
length [m],
width [m],
front exposition,
source exposition,
coordinates [Swiss national system]

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Data Acquisition and Processing

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References and Related Publications

Contacts and Acknowledgments

Martin Hoelzle

Section of Physical Geography
Department of Geography
University of Zurich
Winterthurerstrasse 190
CH-8057 Zurich
Tel. ++41 1 635 51 39
Fax. ++41 1 635 68 48
e-mail: hoelzle@geo.unizh.ch

Section of Glaciology
Laboratory of Hydraulics Hydrology and Glaciology
Federal Institut of Technology
Gloriastrasse 37/39
CH-8092 Zurich
Tel. ++41 1 632 40 94
Fax. ++41 1 632 11 92
e-mail: hoelzle@vaw.baum.ethz.ch

Document Information

Please cite these data as follows:

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, nsidc@kryos.colorado.edu. Boulder, Colorado: NSIDC, University of Colorado at Boulder.

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