The study of the influence of climatic fluctuations and water infiltration on the thermal regime of the upper part of the layered earth crust, layers of daily, annual, perennial and other heat cycles is important for the interpretation of hydrogeological, geophysical, engineering-geological and other data, for the establishment of regularities of distribution, formation and preservation of mineral deposits in the search, exploration and exploitation of these deposits, in assessing the overall thermal balance of the earth's surface, as well as in solving agrotechnical and technical problems.