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    A semi-automated approach for GIS based generation of topographic attributes for landform classification

    19641_downloaded_stream_159.pdf (577.0Kb)
    Access Status
    Open access
    Authors
    Metternicht, Graciela
    Klingseisen, B.
    Paulus, G.
    Date
    2005
    Type
    Conference Paper
    
    Metadata
    Show full item record
    Citation
    Metternicht, Graciela and Klingseisen, Bernhard and Paulus, Gernot. 2005. A semi-automated approach for GIS based generation of topographic attributes for landform classification, in XXII International Cartographic Conference (ICC2005), 11-16 July 2005. A Coruna, Spain: The International Cartographic Association (ICA-ACI).
    Source Conference
    XXII International Cartographic Conference (ICC2005)
    Faculty
    Division of Resources and Environment
    Department of Spatial Sciences
    School
    Spatial Sciences
    URI
    http://hdl.handle.net/20.500.11937/46026
    Collection
    • Curtin Research Publications
    Abstract

    This paper presents LANDFORM, a customized GIS application for semi-automated classification of landform elements, based on landscape parameters. Using custom commands, topographic attributes like curvature or elevation percentile were derived from a Digital Elevation Model (DEM) and used as thresholds for the classification of Crests, Flats, Depressions and Simple Slopes. With a new method, Simple Slopes were further subdivided in Upper, Mid and Lower Slopes at significant breakpoints along slope profiles. The paper discusses the results of a fuzzy set algorithm that was used to compare the similarity between the map generated by LANDFORM and the visual photo- interpretation conducted by a soil expert over the same area. The classification results can be used in applications related to precision agriculture, land degradation studies, and spatial modelling applications where landform is identified as an influential factor in the processes under study.

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