The method of two-dimensional and three-dimensional dynamic display of flood by using the measured water level of the river

Abstract

The invention discloses a method for two-dimensional and three-dimensional dynamic display of floods by using the measured water level of the river. The data processing tool provided by the geographic information platform ArcGis is as follows: 1. Monitoring section layout; 2. River DEM production; 3. Grid Surface element production; 4. Grid terrain interpolation; 5. Grid water depth interpolation at each time; 6. Temporal data production; Step 7. Flood dynamic display. The present invention completely changes the display mode of the traditional river water level, not only can realize the joint display of a large amount of monitoring water level data, but also after the flood data is superimposed on topographic maps, aerial image maps, and DEM, the display effect will be more vivid, just like real As the flood flows on the river, the display process such as the change of water surface width, water depth distribution, flood peak position, etc. can be seen at a glance, so as to assist the decision-making department to grasp the overall dynamics of the flood more intuitively, and achieve the purpose of promoting the development of water conservancy information technology.

Description

technical field [0001] The invention relates to the application of GIS technology and water conservancy information technology in river channel flood control, in particular to a method for two-dimensional and three-dimensional dynamic display of flood by using the actually measured water level of the river channel. Background technique [0002] At present, the water conservancy information system developed based on river water level monitoring data plays an important role in river flood control and auxiliary decision-making. However, in the display of river water level data, it is often displayed through simple tables, curves, or vertical and horizontal profiles. On the one hand, this display method cannot match maps and aerial images to visually display information such as the evolution process of floods and the location of flood peaks. On the one hand, when there are many monitoring sections and a large amount of monitoring data, it will be dazzling to display the water le...

AI Technical Summary

Problems solved by technology

However, in the display of river water level data, it is often displayed through simple tables, curves, or vertical and horizontal profiles. On the one hand, this display method cannot match maps and aerial images to visually display information such as the evolution process of floods and the location of flood peaks. On the one hand, when there are many monitoring sections and a large amount of monitoring data, it will be dazzling to display the water level process of multiple sections at the same time, and it is impossible to understand the flood dynamics as a whole

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