Опис документа

В статті встановлені зв"язки між середньобагаторічними значеннями мінімальних та середніх витрат води, їх статистичні параметри та кореляційні залежності

В статье устанавливаются связи между среднемноголетними значениями минимальных и средних расходов воды, их статистические параметры и корреляционные связи между ними.

The Ukrainian Carpathians Rivers first of all characterized by the floods regime. But the problem of minimal (low-flow) flow is without sufficient attention in previous studies. Accordingly, it is necessary to study the minimum flow indicators and its relationship with the average water flow. The literature review of previous studies of low flow and average water flow of rivers all over Ukraine, and for the Carpathian region were given in the article. The area of research includes four river basins: the Tisza, Prut, Siret and Dniester (mountain right bank tributary) within Ukraine. The relationships between long-term low flow and average water flow were established. Evaluation of these relationships was conducted by the results of regime observations based on routine observations Hydrometeorological Ukraine by 63 hydrological basins studied positions observation period of 35 to 70 years. Correlation between long-term low flow and average water flow was given much attention. To analyze the results of the study Tisza river basin was divided into two parts - the Upper Tisza and the Middle Tisza. The entire basin of the Prut River in the territory of Ukraine was considered. The Siret River Basin has only one gauging station and covers small area (2070km2). The mountain right bank tributaries in the Dniester Basin belong to the Ukrainian Carpathians. The larges ratios between the study parameters are typical for the foothills of the Tisza River Basin (7,85), and the smallest one are typical for Prut (5,83) and Siret (5,75) River Basin. Graphs connections between average and low flow values were shown in the article. Correlation analysis and evaluation of the accuracy of the correlation coefficient was conducted in the article. The correlation coefficient varies between 0,850,97. There are linear regression equation for each basin in the article. It is make possible to determine the value of the low flow and of average water flow. The results should be used for different practical purposes.