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Model of the river section water balance

The model of rivers' section water balance for the Amudarya and Syrdarya rivers is based on the balance non-dynamic schemes of water allocation on the sections of major rivers in the Amudarya and Syrdarya river basins, according to which the calculation is carried out sequentially downstream for ten-days period, taking into account all the main items of the river channel water balance (inflow from the upper section, lateral inflow to the section, water withdrawal, return flow to the section - a collector-drainage flow, releases from canals, water losses, releases into lakes, water delivery to downstream sections).

The model is a computer program connected to the CAREWIB DB; it allows solving the following tasks:

  • Calculation of river section's channel balance of the main rivers of the Amudarya and Syrdarya river basins;
  • Calculation of water balance of the main reservoirs of the Amudarya and Syrdarya river basins.

Within this task the following tasks were implemented:

  • Analysis of reservoir performance in the Amudarya and Syrdarya river basins - comparison of predicted (planned) and actual values;
  • Analysis of water uses on the river sections - comparison of predicted (planned) and actual values;
  • Estimation of water allocation by means of criteria and indexes of effectiveness.

The river section water balance model for Amudarya and Syrdarya rivers is used for preparing the seasonal analytical reports.

Assessment of river channel balance for Amudarya and Syrdarya rivers for non-vegetation period 2010-2011 and forecast for vegetation period 2011 was implemented using the river channel model and assessment of water losses.





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