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(Article of periodic en Anglais - 2012)

Document title

Evaluation of remotely-sensed DEMs and modification based on plausibility rules and initial sediment budgets of an artificially-created catchment

Authors(s) and Affiliation(s)

SCHNEIDER A. (1) ; GERKE H.H. (2) ; MAURER T. (1) ; SEIFERT S. (3) ; NENOV R. (1) ; HÜTTL R.F. (4) ;
(1) Research Centre Landscape Development and Mining Landscapes, Brandenburg Univ. of Technology (BTU), Cottbus, ALLEMAGNE
(2) Inst. of Soil Landscape Research, Leibniz-Centre for Agricultural Landscape Research (ZALF), Müncheberg, ALLEMAGNE
(3) Chair for Forest Growth and Yield, Technische Univ., München, ALLEMAGNE
(4) Helmholtz Centre Potsdam, German Research Centre for Geosciences, Potsdam, ALLEMAGNE

Abstract

This study aimed to evaluate and to modify remotely-sensed DEMs for an improved quantification of initial sediment mass changes in an artificially-created catchment. DEMs were constructed from photogrammetry-based, airborne (ALS) and ground-based laser scanning (TLS) data. Regions of differing morphological characteristics and vegetation cover were delineated. Three-dimensional (3D) models of volume change were established and mass change was derived from these models. DEMs were modified region-by-region for rill, interrill and alluvial areas, based on logical and hydro-geomorphological principles. Additional DEMs were constructed by combining multi-source, modified data. Models were evaluated by comparison with d-GPS reference data and by considering sediment budget plausibility. Comprehensive evaluation showed that DEM usability depends on a relation between the technique used to obtain elevation data, surface morphology and vegetation cover characteristics

Source

Article of periodic

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

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

Millesime : 2012, vol. 37, no7 [pp. 708-725]

Bibliographic references : 49 ref.

Collation : 11 fig., 7 tabl.

Language

Anglais

INIST-CNRS, Cote INIST : 17355

Digital Object Identifier

Go to electronic document thanks to its DOI : doi:10.1002/esp.2274

Tous droits réservés © Prodig - Bibliographie Géographique Internationale (BGI), 2013
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