Flood hydrograph forecasting man-machine cooperation interaction method

Abstract

The invention relates to the technical field of hydrological forecasting, and discloses a flood hydrograph forecasting man-machine cooperation interaction method, which comprises the following steps: S1, introducing loading; s2, initializing and generating a web version grid drawing according to the size and color of an actual paper grid; s3, solving rainfall and flow series by the real-time rainwater condition data interaction substation, solving a base value of a water level series, subtracting the base value from the water level series to generate a new water level series, and adding the base value back in water level reading or forecasting. Graphics interaction processing technologies such as a click addition forecast point drawing technology, a forecast point dragging modification technology, a rubber band connection technology, a map sheet scaling technology, a grid width and height increase and decrease technology and various element longitudinal scale custom are adopted to carry out manual intervention on flood forecast intermediate links; knowledge and experience of experts and forecaters are fully utilized to carry out comprehensive judgment, so that the flood forecasting precision is effectively improved, and a final forecasting result more conforming to the actual situation is obtained.

Description

technical field [0001] The invention relates to the technical field of hydrological forecasting, in particular to a human-computer interaction method for flood process line forecasting. Background technique [0002] In modern flood forecasting, in order to improve the timeliness of forecasting operations and the accuracy of forecast results, remote sensing, telemetry, information transmission and computer calculations are often combined into a forecasting system to extend the forecast period through meteorological and hydrological forecasting coupling, and to continuously calculate through river system forecasting Shorten the forecast time, improve the accuracy of flood forecast through rolling correction forecast and other technologies, extend the forecast period, and then use the computer to automatically calculate the forecast result directly according to the stored real-time forecast program program based on the measured data. However, due to the extreme complexity of th...

AI Technical Summary

Problems solved by technology

[0003] The common analysis method for flood forecasting used to be to manually draw hourly flood process line diagrams on hydrological conventional grid paper. This kind of process line diagram has the advantages of intuitive image and clear overall situation, but it is time-consuming and laborious, and the efficiency is not high.

Now that the technology is advanced, it can be automatically drawn by computer to generate a histogram of the average precipitation on the inverted surface with time as the abscissa, the left vertical axis at the bottom is the water level, and the right vertical axis is the flow diagram of the rain and flood control process line (such as figure 1 ), but this kind of picture usually has the disadvantages of small display size on the computer screen and difficulty in reading the data on the picture

Forecasters' analysis on this kind of map is not in line with the traditional habits and thinking of hydrologists, and it is difficult to control the location and size of points on the map, and it is very difficult to outline the future development trend of floods. It is very inconvenient, and it is impossible to carry out comparative analysis of upstream and downstream multi-station water levels

Even if some forecasting systems have realized this function, due to improper handling of the vertical axis of water level, each station adopts a unified scale, which causes the graphics to be squeezed and deformed, which seriously affects the comparative analysis and judgment

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