Tidal Effects in the Fine Temperature Variations Measured in a Deep Underground Tunnel of the Northern Caucasus Geophysical ObservatoryстатьяИсследовательская статья
Статья опубликована в журнале из списка Web of Science и/или Scopus
Дата последнего поиска статьи во внешних источниках: 20 апреля 2022 г.
Аннотация:The initial results of observations of natural temperature variations with an accuracy of up to one thousandth of a degree in the deep underground adit of the Geophysical Observatory in the Northern Caucasus are presented. It is shown that tidal-driven changes in the stress–strain state of the geophysical medium lead not only to heat release due to shear displacements (effect of tidal friction), but also account for the observed “modulation” of the processes of the release of volatile fluids from the underground rocks (so-called “sponge effect”). Thus, the diurnal and semidiurnal harmonics observed in microvariations of the underground temperature may be associated with the convective component of heat and mass transfer, which is largely determined by the corresponding changes in the regime of regular fluid migration due to the periodic influence of the combined solar–lunar tide effects on the geophysical medium in the deep underground tunnel.