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    Application of airborne LiDAR in river environments: the River Coquet, Northumberland, UK


    Charlton, Martin and Large, A. and Fuller, I. (2003) Application of airborne LiDAR in river environments: the River Coquet, Northumberland, UK. Earth Surface Processes and Landforms, 28 (3). pp. 299-306. ISSN 1096-9837

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    Abstract

    The potential offered by LiDAR (laser-induced direction and ranging) for the mapping of gravel-bed river environments is addressed in this paper. A LiDAR dataset was obtained for a reach of the River Coquet, Northumberland, UK. Topographic data were acquired from the field at the same time using theodolite-EDM survey of a number of cross-profiles across the active river channel and bar units. These cross-profiles provide a means of comparing measurements from the LiDAR data with ground survey. Ordnance Survey large-scale mapping was used to georeference the survey data, which were then integrated with the LiDAR dataset using GIS software. A close correspondence between ground survey-derived cross-profiles and those generated using LiDAR is observed. However, the presence of both vegetation and deep water introduces anomalies in the LiDAR surface. Correction for these anomalies is needed to improve the accuracy of LiDAR mapping in the UK context and similar river environments. It is concluded that LiDAR has potential as an accurate survey tool for obtaining high resolution topographic data from unvegetated, exposed bar surfaces.

    Item Type: Article
    Keywords: LiDAR; river channel; cross-profile; surface quality;
    Academic Unit: Faculty of Science and Engineering > Research Institutes > National Centre for Geocomputation, NCG
    Item ID: 5902
    Identification Number: https://doi.org/10.1002/esp.482
    Depositing User: Martin Charlton
    Date Deposited: 23 Feb 2015 16:24
    Journal or Publication Title: Earth Surface Processes and Landforms
    Publisher: John Wiley & Sons, Inc
    Refereed: Yes
    URI:

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