Rainfall Runoff Forecasting System

Abstract

The invention adopts an innovative rainfall runoff forecasting technical scheme, which can realize short, medium and long-term rainfall runoff forecasting, and can display the real-time flood forecasting process in the forecasting, which is conducive to accurately estimating the flood peak, flood volume, and flood process of the flood, and can be simulated during the forecasting process The out-of-storage and water-level process realizes short-, medium-, and long-term runoff forecasting and scheduling for users, including real-time flood forecasting, and solves the problems that most runoff forecasting software has too short a forecasting process and simple, medium- and long-term forecasting functions. The system includes a water regime database, a user parameter configuration module, a rainfall runoff forecast calculation module, a forecast result statistics module, and a forecast graphics module. This system has the function of automatic correction and forecasting. Without a water level station, it can also realize real-time rainfall and flood forecasting, which greatly reduces the cost of system software and hardware, and solves the problem of lack of medium and long-term forecasting in most small and medium-sized reservoirs, hydropower stations and some large and medium-sized hydropower stations.

Description

technical field [0001] The invention relates to the technical field of rainfall runoff forecasting, in particular to a method for simultaneously performing short-term, medium-term, long-term and real-time rainfall runoff forecasting. Background technique [0002] Runoff forecasting is an important basis for flood control and drought relief, effective use of water resources, and water conservancy dispatching and management. The power generation and social benefits of forecasting dispatching management are significantly higher than those of dispatching management models that do not use forecast information. Today's runoff forecasting system is mainly based on water level monitoring. Short-term rainfall and runoff forecasts, river flood forecasts and real-time flood forecasts considering real-time corrections are carried out with the data collected by rainfall monitoring. The medium and long-term forecasting methods in today's society are not mature enough, and there are only a ...

AI Technical Summary

Problems solved by technology

[0002] Runoff forecasting is an important basis for flood control and drought relief, effective use of water resources, and water conservancy dispatching and management. The power generation and social benefits of forecasting dispatching management are significantly higher than those of dispatching management models that do not use forecast information. Today's runoff forecasting system is mainly based on water level monitoring. Short-term rainfall and runoff forecasts, river flood forecasts and real-time flood forecasts considering real-time corrections are carried out with the data collected by rainfall monitoring. The medium and long-term forecasting methods in today's society are not mature enough, and there are only a few large reservoirs in China for medium and long-term rainfall and runoff forecasting systems. It has been applied, but it does not have the conditions for promotion and popularization

Water level or flow monitoring telemetry stations generally require water level wells or monitoring stations, and the cost is at least tens of thousands to hundreds of thousands. Generally, small reservoirs and small hydropower stations have less investment in infrastructure, and the degree of automation is low. The supporting runoff forecasting system There is almost none. The development cost of software and hardware of the runoff forecasting system is high, the investment in infrastructure is large, and the maintenance cost is expensive, or some medium and long-term rainfall runoff forecasts are complicated from theory to implementation, which is not conducive to promotion. These factors are small and medium-sized reservoirs and hydropower stations. Improve the bottleneck of water resource utilization. For example, as of the end of 2010, Fujian province has built 6,606 rural hydropower stations. Relatively speaking, there are very few reservoirs and hydropower stations with runoff forecasting systems. Many large reservoirs and hydropower stations only have short-term runoff forecasting systems. Medium and Long-term Runoff Forecasting System

These small and medium-sized reservoirs and hydropower stations have lost tens of millions of benefits due to the blind use of water resources due to the lack of real-time flood forecasts and medium- and long-term runoff forecasts. Casualties and property damage due to lack of adequate preparation or due to too short a forecast period to make emergency preparations

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