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(Article of periodic en Anglais - 2011)

Document title

Geophysical and remote sensing-based approach to model regolith thickness in a data-sparse environment

Authors(s) and Affiliation(s)

SHAFIQUE M. (1 2) ; VAN DER MEIJDE M. (1) ; ROSSITER D.G. (1) ;
(1) Dep. of Earth System Analysis, Fac. of Geo-Information Science and Earth Observation (ITC), Univ. of Twente, Enschede, PAYS-BAS
(2) National Center of Excellence in Geology, Univ., Peshawar, PAKISTAN

Abstract

The AA. developed a generic remote sensing and geophysics based approach to model regolith thickness for areas with limited possibility of direct field observations. The approach was tested in a seismically-active and depositional landscape in northern Pakistan. Regolith thickness was sampled at exposed bedrock outcrops along the river bed and scarps. At unexposed sites the regolith-bedrock interface was identified through electrical resistivity survey, thus providing an indirect measurement of regolith thickness. A geomorphic classification of landforms and topographic attributes were derived from a remote sensing-based (ASTER) digital elevation model and SPOT-5 satellite imagery. A multivariate linear model based on landform, elevation and distance to stream was able to predict the regolith thickness including field-observed abrupt changes at landform boundaries

Source

Article of periodic

published at : Catena / ISSN 0341-8162

Editor : Catena, Cremlingen-Destedt - ALLEMAGNE (1973)

Millesime : 2011, vol. 87, no1 [pp. 11-19]

Bibliographic references : 31 ref.

Collation : 7 fig., 2 tabl.

Language

Anglais

INIST-CNRS, Cote INIST : 16767

Digital Object Identifier

Go to electronic document thanks to its DOI : doi:10.1016/j.catena.2011.04.004

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