AIRBORNE HYPERSPECTRAL INVESTIGATION OF MINING-RELATED IMPACTS IN VARIOUS VEGETATED EUROPEAN ENVIRONMENTS – THE EUROPEAN RDT PROJECT MINEO
The methodological developments are carried out over six mining test areas in various contexts representative of most of the environments encountered in Europe. Hyperspectral airborne data acquisition survey has been performed over these six test sites during summer 2000, using the HyMap hyperspectral imaging spectroradiometer, operated by HyVista Corporation, and flown at an altitude of 2000-2500 m above ground level. Simultaneous ground spectroradiometric measurements have been carried out for further radiometric calibration of the airborne data as well as for the generation of spectral libraries of contaminated areas.
Current methodological developments consist in the spectral identification of mining-related contaminated and impacted areas, the development of image-processing procedures or algorithms to map these areas, the development of GIS-models to exploit these data in an environmental risk assessment and monitoring perspective.
This paper presents examples of characterisation, identification and mapping of physical or chemical surface disturbances, indicators of environmental processes over the project test sites in Greenland, Finland, Austria, Germany, UK and Portugal.