Application of geophysical monitoring techniques as aids to probabilistic risk-based management of landfill sites

摘要: Increasingly stringent regulatory regimes, in conjunction with landfill development environmentally sensitive locations and the large number of abandoned sites, are significantly increasing responsibilities local authorities environmental agencies. These include identification and/or monitoring of: contaminated land; boundaries waste sites; nature content; location, extent, content depth closed leachate plumes escaping from both operational sites performance liners. Probabilistic risk based modelling is a standard methodology for managing impact sites. A critical problem implementation probabilistic uncertainty shallow geology, internal structure distribution landfills caused by severe lack surface subsurface information within outside site. The utility two non-invasive ground geophysical techniques, penetrating radar reflectance spectroscopy, as aids to characterising three-dimensional has been investigated. Strong correlations between red edge inflection position chlorophyll metal concentration have demonstrated grassland species affected contamination soil adjacent study results this how recent advances equipment, techniques software mean that field-based spectroscopy Ground Penetrating Radar can now provide scientists cost-effective, rapid characterise three dimensions, aid managers positioning additional boreholes field sampling surveys, data inputs migration modelling.