Get Data

DOWNLOADING DATA VIA FTP

Data can be downloaded through a Web browser or command line via FTP. When using a Web browser, the FTP link first directs you to an Optional Registration Form that if filled out, will allow you to receive notifications about updates or processing changes related to that specific data set. After completing the Optional Registration Form, the FTP directory becomes available. For additional help downloading data through an FTP client, go to the How to access data using an FTP client support page.

FTP

Data Set ID:
GGD287

Rock glaciers, Fletschhorn Area, Valais, Switzerland, Version 1

This data set contains a total amount of 74 rock glaciers which were investigated in the Fletschhorn Area in the southern Swiss Alps during the summer of 1995. The thorough investigation included analysis of infrared air photographs; mapping of the rock glaciers; measurement of their aspect, slope and size; measurements of the water temperature of sources in the vicinity or at the snout of the rock glaciers; and analysis of the vegetation cover on the rock glaciers (species, coverage). The analysis of the above mentioned parameters revealed that 32 of the investigated rock glaciers are active, 21 show signs of inactivity (either due to decreasing ice content or due to dynamic stability), 27 are to be considered as fossil objects. The following parameters were measured and are included in the described data set-- location (longitude and latitude), elevation of the front [m asl], length [m], width [m], aspect, activity (active, inactive or fossil), source temperatures [C], and vegetation cover (covered, sporadic or none). These data are presented on the CAPS Version 1.0 CD-ROM, June 1998. Additional measurements (not included in the data set on the CD)-- Rock glacier type; Lithology; Analysis of the vegetations' composition (species, coverage in %); Special remarks.

Geographic Coverage

Parameter(s):
  • Frozen Ground > Periglacial Processes
  • Frozen Ground > Rock Glaciers
  • Vegetation > Vegetation Cover
Spatial Coverage:
  • N: 46.233, S: 46.117, E: 8.117, W: 7.15

Spatial Resolution: Not Specified
Temporal Coverage:
  • 1 January 1995 to 31 December 1995
Temporal Resolution: Not specified
Data Format(s):
  • ASCII Text
Platform(s) Not specified
Sensor(s): Not specified
Version: V1
Data Contributor(s): Regula Frauenfelder
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.

Frauenfelder, R 1998. Rock glaciers, Fletschhorn Area, Valais, Switzerland, Version 1. [Indicate subset used]. Boulder, Colorado USA. NSIDC: National Snow and Ice Data Center. [Date Accessed].

Back to Top

Collapse All / Open All
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:

Fletschhorn Area, Southern Swiss Alps

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

Northwest latitude: 46.233 N
Northwest longitude: 7.15 E
Southeast latitude: 46.117 N
Southeast longitude: 8.117 E

Period of investigation - Years covered

Inventory of rock glaciers: summer of 1995

Background color on
Summary Description - Brief details of site type, data collection, techniques, parameters (i.e. soil temperature, thaw depth, etc.), frequency of measurement, and indication of data quality. Use as many lines as necessary.

The Fletschhorn Area is located in the southern Swiss Alps. A high mountain chain, with peaks rising over 4000 m a.s.l. subdivides the region into two parts: the Saas valley on the western slopes of the mountain range and the Simplon region on its eastern slopes. Climatically the whole region is characterized by local continental climate, characterized by low precipitation coupled with higher amplitudes of temperature. Nevertheless glaciers are abundant, though - due to the climatic conditions - they show small mass turnovers and reach only medium sizes. Practically all important processes and forms of the periglacial realm in the Alps (e.g. rock glaciers, perennial snow patches, solifluction forms, etc.) can be found in the area. The data set contains a total amount of 74 rock glaciers which were investigated during the summer of 1995. The thorough investigation included: analysis of infrared air photographs, mapping of the rock glaciers, measurement of their aspect, slope and size, measurements of the water temperature of sources in the vicinity or at the snout of the rock glaciers, analysis of the vegetation cover on the rock glaciers (species, coverage). The analysis of the above mentioned parameters revealed, that 32 of the investigated rock glaciers are active, 21 show signs of inactivity (either due to decreasing ice content or due to dynamic stability), 27 are to be considered as fossil objects.

The following parameters were measured and are included in the described data set:

Location (longitude and latitude)
Elevation of the front [m a.s.l.]
Length [m]
Width [m]
Aspect
Activity (active, inactive or fossil)
Source temperatures [C]
Vegetation cover (covered, sporadic or none)

Additional data that has been measured (not included in the data set on the CD):

Rock glacier type
Lithology
Analysis of the vegetation composition (species, coverage in %)
Special remarks

Current storage of data - Mark with X as many as are appropriate, or delete those that do not apply:

CD ROM          X
Paper      X
GIS-System X
Spreadsheet
Wordprocessor file(s)     X

Datacenter: cf. organization above

Are your data at risk of being lost? Yes or No *** No ***

Background color on
Background color on

Software and Tools

Background color on

Data Acquisition and Processing

Background color on

References and Related Publications

Contacts and Acknowledgments

Regula Frauenfelder

Document Information

Please cite these data as follows:

Frauenfelder, R. 1998. Rock Glaciers, Fletschhorn Area, Valais, 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.

No technical references available for this data set.
No FAQs or How Tos available for this data set.

Access complete Knowledge Base

Questions? Please contact:
NSIDC User Services
Phone: 1 303 492-6199
Email: nsidc@nsidc.org