Procedural questions related to the construction of mathematical models that establish a quantitative relationship between certain characteristics of the temperature field and the indicator of damping of the pulse electromagnetic field in a layer of the annual temperature fluctuations of built-up areas of the cryolithic zone of Yakutia are considered. Recommendations are given for practical application of the mathematical models based on an analysis of the errors that arise when calculating the temperature of frozen ground found with the use of the models.
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Notes
This, the upper part of permafrost, is important for construction. Here there occur processes of thermal interaction between the atmosphere and the lithosphere at different intensities over time and depth. The lower boundary of the layer, which exhibits null fluctuations of temperature over the annual cycle, is usually found at a depth of 10-15 m.
This includes the mean specific indicators and standard deviations of the rate of propagation (m/nsec) and damping of the amplitude of electromagnetic waves (dB/m).
Ground possessing a positive temperature which in the course of a lengthy geological time has not entered into a frozen state is referred to as unfrozen ground. Such ground should not be confused with thawed ground, which is formed as a result of thawing of frozen ground.
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Translated from Izmeritel’naya Tekhnika, No. 8, pp. 52-57, August, 2011.
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Neradovskii, L.G. Calculation of the temperature of frozen ground on the basis of mathematical models of the temperature dependence of ground penetrating radar signals. Meas Tech 54, 931–938 (2011). https://doi.org/10.1007/s11018-011-9829-2
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DOI: https://doi.org/10.1007/s11018-011-9829-2