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Double-mode flash flood warning control system and method

A flash flood warning and control system technology, applied in alarms, climate change adaptation, instruments, etc., can solve the problem of low accuracy and achieve the effect of timely warning, satisfying accuracy and wide coverage

Inactive Publication Date: 2017-07-21
HOHAI UNIV
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  • Summary
  • Abstract
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AI Technical Summary

Problems solved by technology

Both of the above two methods have deficiencies and defects. For example, although satellite remote sensing can be used to obtain the approximate location of flash floods, the accuracy is not high

Method used

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Examples

Experimental program
Comparison scheme
Effect test

specific Embodiment

[0034] Arrange the flash flood warning system in areas where flash floods are prone to occur, and establish a system workstation similar to a small meteorological field. The system workstation uses self-recording rain gauge and soil moisture meter to continuously collect 24h rainfall and soil moisture content data in the area. The system workstation uses the UAV, PIV particle image tester, and high-definition field camera in the data acquisition system to collect real-time images of the internal particle flow state and external surface dynamic changes of the soil in the monitoring area.

[0035] Use the Electronic Data Interchange (EDI) in the data conversion and transmission system to convert the collected soil water content into the corresponding soil water saturation (soil water saturation = soil water content / (tension water tolerance)).

[0036] The real-time collected and converted data and monitoring images in the early warning system are mainly connected to the syst...

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Abstract

The invention discloses a double-mode flash flood warning control system and a method, which belongs to the technical field of disaster warning. The invention especially relates to a method of building a flash flood warning control system based on critical rainfall and soil moisture saturation, and particularly relates to a flash flood disaster comprehensive research and judgment and warning control system coupling critical rainfall and soil moisture saturation. Workstations are built in flash flood-prone areas or geologically fragile areas, wherein there are no flash flood hazards near the workstations. A soil moisture measuring instrument, a data transmitter, an automatic rainfall recorder, an automatic weather station, a GPS base station and other facilities are arranged in each monitoring area. The system couples critical rainfall and soil moisture saturation. The possibility and magnitude of flash flood are determined according to critical rainfall and soil moisture saturation respectively. A single standard is changed to double guarantee, and the sensitivity and accuracy of monitoring are improved. The system and the method can be widely applied to hilly areas, and realize more accurate, timely and efficient monitoring and warning on flash flood disaster.

Description

technical field [0001] The invention relates to a dual-mode mountain torrent early warning control system and method, in particular to a mountain torrent early warning control system based on critical rainfall and soil moisture saturation, belonging to the technical field of disaster early warning. Background technique [0002] Mountain torrents are floods that occur in mountain streams and ditches. Because the slopes of the ground and riverbeds in mountainous areas are relatively steep, and the runoff and confluence are faster after rainfall, they will form sharply rising and falling flood peaks. Therefore, mountain torrents are sudden and the water volume Concentration, strong destructive power and other characteristics. Under the profound background of global climate change, the frequency and intensity of mountain torrent disasters in my country's mountainous areas are becoming more and more frequent and intense. The loss of people and property caused by flash floods wit...

Claims

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Application Information

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IPC IPC(8): G08B21/10G08B21/18
CPCG08B21/10G08B21/182Y02A50/00
Inventor 王卫光郑佳重丁一民
Owner HOHAI UNIV
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