Control the Uniformity of Hydrometric Data
Budnik Svetlana Vasilievna
ABSTRACT
Objective: The purpose of the study is to study the influence of series of hydrometric observations on the transfer of hydrometric sources along the river in order to convert the results and analyze them. since individual long-term series cannot unambiguously characterize the impact of climate change and economic activity on river flow.
Theoretical Framework: The prerequisite for the study is the presence of a logical theory of the formation of water flow along the length of the river in various physical and geographical conditions, as well as the presence of a relationship between charge of water in the river and water levels in it.
Method: A graph-analytical research method was used, which makes it possible to clearly determine the deviations of measurement data over time from the main trend. The analysis was carried out based on the materials of long-term observations of river flow on the state hydrometeorological observation network of Ukraine.
Results and Discussion: The studies carried out confirm all the theoretical justifications for the theory of water flow in river beds and show a reliable way to check for the presence of distortion in runoff calculations when moving observation sites. Using the proposed method, it is possible to easily determine whether the transfer of gauges is the cause of flow distortion or economic activity, etc.
Research Implications: The research results indicate the need to clarify periods with homogeneous data and determine the rate of water flow from them for use in design and forecasting. A thorough analysis of the morphometry and regime of the river will allow us to determine the optimal location of the hydrological post.
Originality/Value: Despite the wide popularity of the graphic-analytical method for studying the homogeneity of observation series, it has not been used in the proposed form. The importance of the development is that the proposed method allows you to quickly determine the interruption time of a series of observations and make appropriate adjustments to the water cadastre materials.
