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(Article of periodic en Anglais - 2010)

Document title

Spatial analysis of solifluction landforms and process rates in the Abisko Mountains, Northern Sweden

Authors(s) and Affiliation(s)

RIDEFELT H. (1) ; ETZELMÜLLER B. (2) ; BOELHOUVERS J. (1) ;
(1) Dep. of Social and Economic Geography, Univ., Uppsala, SUEDE
(2) Dep. of Geosciences, Physical Geography, Univ., Oslo, NORVEGE

Abstract

The occurrence of turf-banked solifluction landforms in the Abisko region was analysed using a grid-based approach and statistical modelling through logistic regression. Significant parameters in the model were the vegetation index NDVI, annual incoming potential radiation, wetness index, slope gradient and elevation. The model had an acceptable discrimination capacity and rather low model-fit values, but clearly showed the importance of vegetation patterns for the occurrence of solifluction at a regional scale. Solifluction movement rates measured at 8 sites were combined with model parameters and the annual duration of sun hours to regionalise solifluction movement rates through an unsupervised terrain classification. For comparison, the linear relationship between the probability of solifluction occurrence and variations in movement rates was also used to regionalise movement rates

Source

Article of periodic

published at : Permafrost and periglacial processes / ISSN 1045-6740 / CODEN PEPPED

Editor : Wiley, Chichester - ROYAUME-UNI (1990)

Millesime : 2010, vol. 21, no3 [pp. 241-255]

Bibliographic references : 48 ref.

Collation : 9 fig., 5 tabl.

Language

Anglais

Digital Object Identifier

Go to electronic document thanks to its DOI : doi:10.1002/ppp.681

Tous droits réservés © Prodig - Bibliographie Géographique Internationale (BGI), 2010
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