Nghiên cứu lập kế hoạch sử dụng nước cho các hồ chứa trên địa bàn thành phố Đà Nẵng theo thời gian thực để chủ động cấp nước cho sản xuất trong điều kiện thời tiết cực đoan

Abstract

Annual water use plans of reservoirs are often built by the management unit based on area, type of crops, time of growth,... expected for the whole year, based on the prescribed irrigation norms. many years of operation and experience, also have been adjusted during operation. This approach is revealing a number of inadequacies, leading to a situation where the planning is difficult to match with reality, causing water loss and waste. In order to formulate an active water use plan, it is necessary to accurately forecast the flow to the reservoir (discharge, water level) in the whole year and crop; it also needs to calculate the water demand for production (agriculture, socio); Therefrom, the supply-demand balance was carried out to propose a yearly water use plan, the most appropriate season. In this paper, we propose solutions and technologies for real-time water use planning: At the beginning of the year, a full-year water use plan was made based on meteorological forecasting data, actual rain gauge data, and reservoir water level to adjust suitable water use plan for each lake. The research’s results have also built 01 software to support water use planning, including modules for calculating incoming flow, water demand, and water balance. The changes in water level and rain will be also automatically integrated into the software, thereby the water use plan for the reservoir is adjusted automatically to ensure appropriateness