Comparative Analysis of Minimum Discharge for determining environmental discharge, on the example River Alazani(R.S shaqriani), Mtkvari (R.S Khertvisi), Faravani (R.S Khertvisi ).
2023
Minimal runoff plays a crucial role in designing industrial and domestic water supply. To determine minimal discharge of water in rivers, observation data of winter and summer-autumn seasons are used. Hydrological stations with a long series of observed data were selected, namely: the Alazani River (H/S Shakriani), the Mtkvari River (H/S Khertvisi), the Paravani River (H/S Khertvisi). As a result of multi-year processing of actual observation data of minimum discharges, different minimum discharges were allocated on the research rivers, namely: 1) 30-day minimum discharge (non-calendar year); 2) instantaneous minimum discharge; 3) minimum discharge taken from daily average data. Nowadays, in Georgia there is no legal framework and relevant regulatory documentation for determining the river flow rates for ecological purposes, which of course, is the cause of many problems in terms of conservation and use of water resources. Therefore, it is crucially important to take into consideration the complex relationship between minimum and environmental flow rates. Tab. 3, Fig. 3, Ref. 5.
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