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Connexion

(Article of periodic en Anglais - 2010)

Document title

Effects of scale and data source in periglacial modelling in a High Arctic environment, western Svalbard

Authors(s) and Affiliation(s)

HJORT J. (1 2) ; ETZELMÜLLER B. (3) ; TOLGENSBAKK J. (3) ;
(1) Dep. of Geography, Univ., Oulu, FINLANDE
(2) Dep. of Geosciences and Geography, Univ., Helsinki, FINLANDE
(3) Dep. of Geosciences, Univ., Oslo, NORVEGE

Abstract

To elucidate the effects of modelling scale and data source in distribution modelling, 2 periglacial features with differing physical requirements, sorted circles and solifluction lobes, were analysed on western Svalbard. For the comparison of modelling scales, data at 2 resolutions were used and a boosted regression tree (BRT) method was employed. To analyse the effect of data source, a generalised linear model (GLM) and a variation partitioning method were used to examine the unique and shared effects of the environmental variables on the distribution of sorted circles and solifluction lobes in a High Arctic landscape. Methodologically, novel statistical techniques and earth observation data provided an efficient combination for analysing periglacial landforms and processes in this remote region

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, no4 [pp. 345-354]

Bibliographic references : 64 ref.

Collation : 7 fig., 2 tabl.

Language

Anglais

Digital Object Identifier

Go to electronic document thanks to its DOI : doi:10.1002/ppp.705

Tous droits réservés © Prodig - Bibliographie Géographique Internationale (BGI), 2011
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