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(Article of periodic en Anglais - 2009)

Document title

Measurement of solifluction rates using multi-temporal aerial photography

Authors(s) and Affiliation(s)

RIDEFELT H. (1) ; BOELHOUWERS J. (1) ; EIKEN T. (2) ;
(1) Dep. of Earth Sciences, Univ., Uppsala, SUEDE
(2) Dep. of Geosciences, Physical Geography, Univ., Oslo, NORVEGE

Abstract

A new method is presented to assess decadal solifluction lobe movement and volumetric changes at the catchment scale. The method is based on photogrammetrical analysis of orthorectified repeat aerial photography in a geographic information system (GIS). High resolution aerial photographs from two valleys in northern Sweden, Kärkevagge and Låktatjåkka valleys, are used to quantify changes of the lobe fronts, as an indication of solifluction rates over a period of 41 years. Two methods are explored, the flow direction method and the front line method, in order to quantify the movement rates. Results and discussion about the application potential of the method. Implications for lobe advance models are discussed. In conclusion, photogrammetrical analysis is recommended as an important tool for detecting decadal solifluction movement at the catchment scale

Source

Article of periodic

published at : Earth surface processes and landforms / ISSN 0197-9337 / CODEN ESPLDB

Editor : Wiley, Chichester - ROYAUME-UNI (1981)

Millesime : 2009, vol. 34, no5 [pp. 725-737]

Bibliographic references : 1 p.

Collation : 6 fig., 4 tabl.

Language

Anglais

INIST-CNRS, Cote INIST : 17355

Digital Object Identifier

Go to electronic document thanks to its DOI : doi:10.1002/esp.1773

Tous droits réservés © Prodig - Bibliographie Géographique Internationale (BGI), 2009
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