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(Article of periodic en Anglais - 2014)

Document title

Evaluating volumetric glacier change methods using airborne laser scanning data

Authors(s) and Affiliation(s)

JOERG P.C. (1) ; ZEMP M. (1) ;
(1) Dept. of Geography, Univ., Zürich, SUISSE

Abstract

In this study the AA. used high-resolution airborne laser scanning data from the Findelengletscher in the Swiss Alps to evaluate state-of-the-art volumetric glacier change methods. For the first time they have been able to simulate errors arising from different geodetic methods and spatial resolutions. The evaluation showed that, although the digital elevation models were perfectly co-registered, systematic and random method- and scale-dependent errors still occurred. These errors have an impact on the resulting volume changes at lower spatial resolutions and may lead to exponentially larger uncertainties. Volume changes from contour methods provided reasonably accurate results, while volumetric change assessments from central profile lines were especially prone to biases at any scale

Source

Article of periodic

published at : Geografiska annaler. Series A. Physical geography / ISSN 0435-3676 / CODEN GAPGAP

Editor : Svenska sällskapet för antropologi och geografi, Stockholm - SUEDE (1965)

Millesime : 2014, vol. 96, no2 [pp. 135-145]

Bibliographic references : 26 ref.

Collation : 5 fig., 4 tabl.

Language

Anglais

INIST-CNRS, Cote INIST : 2704 A

Digital Object Identifier

Go to electronic document thanks to its DOI : doi:10.1111/geoa.12036

Tous droits réservés © Prodig - Bibliographie Géographique Internationale (BGI), 2014
Refdoc record number (ud4) : 28681481 : Permanent link - XML version
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