![]() The capacitively coupled resistivity (CCR) method tries to combine these logistical advantages with the potential scientific benefit of reduced ambiguity. In addition, the large frequencies allow a capacitive coupling of the electrodes, which may have logistical advantages. ![]() For the detection and possibly quantification of water ice, a higher frequency range, between 100 Hz and 100 kHz, may be particularly interesting because in that range, the electrical properties of water ice exhibit a characteristic behaviour. At low frequencies ( < 100 Hz) the corresponding method is called induced polarization, which has also been used in periglacial environments. One possibility to reduce the ambiguity is to measure the frequency-dependent resistivity. ![]() The interpretation can be ambiguous, however, because large resistivities may also have other causes, like solid dry rock. ![]() The DC resistivity method is a common tool in periglacial research because it can delineate zones of large resistivities, which are often associated with frozen water. ![]()
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