Remote sensing of upland vegetation: the potential of high spatial resolution satellite sensors

Henny Mehner, Mark Cutler, David Fairbairn, Gillian Thompson

    Research output: Contribution to journalArticlepeer-review

    80 Citations (Scopus)

    Abstract

    Aim Traditional methodologies of mapping vegetation, as carried out by ecologists, consist primarily of field surveying or mapping from aerial photography. Previous applications of satellite imagery for this task (e.g. Landsat TM and SPOT HRV) have been unsuccessful, as such imagery proved to have insufficient spatial resolution for mapping vegetation. This paper reports on a study to assess the capabilities of the recently launched remote sensing satellite sensor Ikonos, with improved capabilities, for mapping and monitoring upland vegetation using traditional image classification methods. Location The location is Northumberland National Park, UK. Methods Traditional remote sensing classification methodologies were applied to the Ikonos data and the outputs compared to ground data sets. This enabled an assessment of the value of the improved spatial resolution of satellite imagery for mapping upland vegetation. Post-classification methods were applied to remove noise and misclassified pixels and to create maps that were more in keeping with the information requirements of the NNPA for current management processes. Results The approach adopted herein for quick and inexpensive land cover mapping was found to be capable of higher accuracy than achieved with previous approaches, highlighting the benefits of remote sensing for providing land cover maps. Main conclusions Ikonos imagery proved to be a useful tool for mapping upland vegetation across large areas and at fine spatial resolution, providing accuracies comparable to traditional mapping methods of ground surveys and aerial photography.
    Original languageEnglish
    Pages (from-to)359-369
    Number of pages11
    JournalGlobal Ecology and Biogeography
    Volume13
    Issue number4
    DOIs
    Publication statusPublished - Jul 2004

    Keywords

    • Habitat monitoring
    • High-spatial resolution satellite imagery
    • Northumberland
    • Remote sensing
    • Supervised classification
    • UK
    • Upland vegetation
    • Vegetation mapping

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