ANALYSIS OF TIME OSCILLATIONS OF WATER ON LAKE MODRIC AS A MULTI-PURPOSE RESERVOIR
The major task of multi-purpose reservoir „Modrac“ operation is to decide how much water should bereleased now and how much should be retained for future use given some available and/or forecastedinformation at the beginning of the current time period. In practice, reservoir operators usually followrule curves, which stipulate the actions that should be taken conditioned on the current state of thesystem. Through construction of the dam Modrac in 1964, the reservoir of the same name was formed.Its primary objectives were the provision of technological water for industries in the Tuzla region andmitigation of downstream floods as well as recreation and other purposes. The multi-purpose reservoirModrac is currently a drinking water source for the municipality Tuzla. In order to better manage of themulti-purpose reservoir „Modrac“, certain analyzes are presented in this paper.This paper presents an analysis of annual precipitation, mean annual inflows in the catchment area ofthe multi-purpose reservoir „Modrac“ for the period 1967 - 2016. In this paper there are presentedstatistical datas on the maximum amount of precipitation for the dry season period (May to October) fordifferent return periods, for different distribution curves, as well as the maximum amount ofprecipitation for the wet season (November to April) for different return periods for different curvesdistribution.This paper provides information on the movement of precipitation changes in the catchment area ofmulti-purpose reservoir “Modrac” for the period from 1967. – 2016.