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A solifluction meter for permafrost sites
Author(s) -
Lewkowicz Antoni G.
Publication year - 1992
Publication title -
permafrost and periglacial processes
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.867
H-Index - 76
eISSN - 1099-1530
pISSN - 1045-6740
DOI - 10.1002/ppp.3430030103
Subject(s) - solifluction , permafrost , geology , inclinometer , geotechnical engineering , metre , frost heaving , active layer , geomorphology , hydrology (agriculture) , geodesy , layer (electronics) , oceanography , physics , chemistry , organic chemistry , astronomy , glacial period , thin film transistor
A solifluction meter that measures soil movements at eight levels in the active layer is described. Anchored in permafrost, the meter transforms mechanical movement of wooden blocks attached to flexible racks into changes in the electrical resistance of potentiometers. Solifluction can be monitored continuously with a data‐logger or manually at intervals when visiting field sites. Preliminary results from meters installed on the Fosheim Peninsula, Ellesmere Island, illustrate frost creep, with heave continuing at ground temperatures between −25°C and −30°C, and summer movements of the active layer in response to thaw consolidation and precipitation.