Author(s): Bojilova Elena
Linked Author(s):
Keywords: Recovered natural river flow; Data generation; Multi-criteria approximation
Abstract: The aim of the research is to make evaluation of the water resources in large-scale water systems and to recover natural river flow of Tundja River. The empirical distribution of annual, maximum and minimum monthly flows is investigated. The multi-criteria optimization of the empirical distribution function is performed and discussed. For the purposes of the study the drainage basin of Tundja River is selected. Tundja is one of transboundary Rivers of Bulgaria located in the Southern part of the country. Data concerning 21 river stations and 11 raingauge recording stations along the Tundja River and some of the river tributaries are executed for the 1960-2002 period. The main characteristics of annual, annual maximum and minimum monthly discharges for the main river and for some of the important tributaries are presented and discussed. The generation of monthly data series for selected cross sections is made. As a rule the generation is performed in direction from the upper tributaries to the main river body. The main hydro-technical works and irrigation schemes are taken into consideration during the analysis. Furthermore, the annual and monthly recovered natural time series for the 1961- 2002 period for the twenty-one river stations are generated. Some basic results are presented.
Year: 2005