ANALYSIS OF HYDROTHERMAL CONDITIONS IN THE ROSTOV REGION IN THE PERIOD 1960-2019
Gudko V.N., Usatov A.V., Azarin K.V. ANALYSIS OF HYDROTHERMAL CONDITIONS IN THE ROSTOV REGION IN THE PERIOD 1960-2019 // Arid ecosystems. 2021. V.27. № 4 (88). P. 25-31. | PDF
Based on data from six meteorological stations in the Rostov region in the period 1960-2019, the tendencies of changes in air temperature, precipitation, and hydrothermal conditions, expressed by the Selyaninov hydrothermal coefficient, were analyzed. For all meteorological stations, a significant trend was determined for the increase in the average annual air temperature and the sums of temperatures above 10 °C. The annual amount of precipitation had a significant upward trend only at the Chertkovo meteorological station, at the other five meteorological stations — an upward trend. On the background of an intensive increase in temperatures, a tendency for a decrease in the values of the Selyaninov hydrothermal coefficient for the Gigant, Rostov-on-Don, Taganrog and Tsimlyansk meteorological stations was noted. At the meteorological stations Chertkovo and Remontnoye, the increase in temperatures was compensated by an increase in the amount of precipitation; as a result, a tendency to an increase in the values of the Selyaninov hydrothermal coefficient was noted. Hydrothermal conditions at six meteorological stations in the period 1960-2019 were characterized as dry, and the mean annual value of HTC varies within 0.64 — 0.82. The driest conditions are typical for meteorological stations located in the east and north-east of the Rostov region. Based on the calculated trends, it can be concluded that in the period 1960-2019 for the meteorological stations Gigant, Rostov-on-Don, Taganrog and Tsimlyansk, arid warming is characteristic, while the meteorological stations Remontnoye and Chertkovo are characterized by humid warming.
Keywords: air temperature, precipitation amount, hydrothermal conditions, Selyaninov hydrothermal coefficient, arid warming, humid warming, Rostov region.
Financing. The work was carried out with the financial support of the Ministry of Science and Higher Education of the Russian Federation within the framework of the state assignment in the field of scientific activity (No. 0852-2020-0029).