Broadband spectral induced polarization for the detection of Permafrost and an approach to ice content estimation – a case study from Yakutia, Russia

Abstract. The reliable detection of subsurface ice using non-destructive geophysical methods is an important objective in permafrost research. content the frozen ground essential parameter for further interpretation, example terms risk analysis and description carbon feedback by thawing processes. high-frequency induced polarization method (HFIP) enables measurement frequency-dependent electrical conductivity permittivity subsurface, a frequency range between 100 Hz kHz. As exhibits strong characteristic behaviour this range, HFIP principle suitable to estimate content. Here, we present methodological advancements suggest explicit procedure estimation. A new measuring device, Chameleon-II (Radic Research), was used first time. Compared previous generation, system equipped with longer cables higher power, such that can now achieve larger penetration depths up 10 m. Moreover, it technology reduce electromagnetic coupling effects which distort desired signal. second development quantitatively from five Cole–Cole parameters obtained spectral two-dimensional inversion results. based on as mixture two components (matrix ice) uses previously suggested relationship In model, relaxation considered dominant process around Measurements site near Yakutsk, Russia, were carried out test entire under real conditions at field scale. We demonstrate signal clearly be identified even raw data show 2-D algorithm obtain multidimensional distribution parameters. estimated agree reasonably well knowledge borehole investigations. conclude able provide quantitative estimates relationships have been tested laboratory may applied