Gudko V.N., Usatov A.V., Azarin K.V.SEASONAL AND ANNUAL DYNAMICS OF HYDROTHERMAL CONDITIONS IN THE EASTERN NATURAL AND AGRICULTURAL ZONE OF THE ROSTOV REGION IN 1961-2020 // Arid Ecosystems. 2023. Vol. 29. № 2 (95). P. 29-35. | PDF
Based on the data from the Remontnoye Meteorological S tation located in the Eastern natural agricultural zone of the Rostov Region, the seasonal and annual dynamics of average temperature, precipitation, dynamics of hydrothermal conditions (de Marton aridity index) were estimated for 1961-2020. For each season, there was an increase in the average temperature; the average annual temperature also increased significantly. However, there was a downward trend for precipitation for the summer season. For the rest of the seasons, the dynamics was positive, thus determining the positive trend of annual precipitation. In 75% of cases the annual regime of hydrothermal conditions was moderately and slightly arid. Moderate conditions were dominant in spring (43% of cases), summer (55%) and autumn (47%). Seasonal temperature and precipitation changes during the study period shifted the nature of hydrothermal conditions. In the winter and summer, the hydrothermal conditions tended to shift to the drier ones, while in the spring and autumn they were more humid. In the annual interval, while precipitation was increasing, the hydrothermal conditions changed to the more humid ones. Thus, based on the calculated trends, it can be concluded that in 1961-2020 the Remontnoye weather station was characterized by a humid heat wave.
Keywords: air temperature, precipitation, hydrothermal conditions, de Marton aridity index, Rostov region, humid warming.
Funding. The research was carried for the Ministry of Science and Higher Education of the Russian Federation within the state assignment in the field of scientific activity (No. 0852-2020-0029) “Fundamentals of Agro- and Ecobiotechnologies for the Sustainable Functioning of Natural and Anthropogenic Ecosystems”.
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.
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).
Shumova N.А. Analysis of climatic conditions in the Republic of Kalmykia for the period 1966-2017 // Arid ecosystems. 2020. V. 26. № 3 (84). P. 23-29. | PDF
The work is based on an analysis of the dynamics of air temperature, precipitation and the hydrothermal coefficient of Selyaninov for the period from 1966 to 2017 based on data from the Yashkul meteorological station (Republic of Kalmykia). The construction and analysis of difference integral curves made it possible to identify periods with increased (in comparison with the average) and reduced values of the studied quantities. It is concluded that the leading role belongs to precipitation in the formation of hydrothermal conditions of the territory for the studied time interval and humid warming.
Key words: air temperature, precipitation, hydrothermal coefficient of Selyaninov, humid warming, Republic of Kalmykia.