UDC 551.5; 58.032.3
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”.