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River hydrology is a key component in river resources planning and river engineering. Our recent study is focused on flow metrics that best describe the registered flow regime and hydrological characteristics of rivers within the Tundzha watershed located in South Bulgaria. The flow regime will be described using 5 broad categories: magnitude of river flow; frequency; duration; timing and rate of change. A special attention in the research was given to the low flows. Thirteen hydrometrics stations were selected fo...

The main goal of presented study is a demonstration of technological approach to determine the water resources of surface water bodies, using a sparse hydrological monitoring network not covering many of them. Resource of the water body is a flow formed in the catchment area above the studied one including the additional inflow in the frame of the same water body. Practically the flow is changing in each sector of the water body but average annual resources are specified at the final section. The water resources f...