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A Flood Forecasting Method and System for Medium and Small Rivers Based on Multi-Feature Fusion Technology

A multi-feature fusion, flood forecasting technology, applied in forecasting, special data processing applications, instruments, etc., can solve complex problems, reduce losses, increase flood defense early warning time, and improve forecast accuracy.

Active Publication Date: 2021-11-23
HOHAI UNIV
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  • Abstract
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Problems solved by technology

[0005] Purpose of the invention: the present invention is aimed at the feature extraction of flood data information in the water conservancy information system, to analyze and solve complex problems in flood forecasting and forecasting

Method used

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  • A Flood Forecasting Method and System for Medium and Small Rivers Based on Multi-Feature Fusion Technology
  • A Flood Forecasting Method and System for Medium and Small Rivers Based on Multi-Feature Fusion Technology
  • A Flood Forecasting Method and System for Medium and Small Rivers Based on Multi-Feature Fusion Technology

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Embodiment Construction

[0044] The technical solutions of the present invention are described in detail below, but the protection scope of the present invention is not limited to the embodiments.

[0045] First, in order to facilitate the understanding of the present invention, the following descriptions are made:

[0046] Area rainfall

[0047] Area rainfall is a physical quantity that describes the average precipitation per unit area in the entire region (watershed), and can objectively reflect the precipitation in the entire region. The calculation formula of area rainfall is the product of the rainfall of each rainfall station in the basin and the area weight coefficient of each rainfall station.

[0048] rainfall intensity

[0049] Rainfall intensity refers to the amount of rainfall in a unit time period. Rainfall refers to the depth of the water layer accumulated on the plane without evaporation, infiltration, or loss of rainwater falling from the sky to the ground. Instruments commonly use...

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Abstract

The present invention relates to a method for forecasting floods of medium and small rivers based on multi-feature fusion technology and its forecasting system, belonging to the field of water conservancy information technology processing, comprising the following steps: S1, obtaining the hourly rainfall of each rainfall station for historical flood events and actual flood events Observational data; then perform similarity feature matching on these rainfall observation data to obtain multiple different matching results, and put the above multiple different matching results into different sets; S2. Adopt the principal component analysis voting algorithm based on water conservancy data , vote on the matching results of each hydrological feature, and find the flood event with the highest number of votes, so as to obtain the most similar flood process, which is used for flood forecasting of small and medium rivers. The invention solves the problem of flood forecasting of medium and small rivers in humid and semi-arid and semi-humid regions of my country, and improves the precision of flood forecasting and forecasting of medium and small rivers.

Description

technical field [0001] The invention relates to a flood forecasting method for medium and small rivers based on multi-feature fusion technology and a forecasting system thereof, belonging to the field of water conservancy information technology processing. Background technique [0002] Informatization is the general trend of the world's economic and social development, and it is also a key link in the optimization and upgrading of my country's industries and the realization of industrialization and modernization. Water conservancy informatization refers to the full life cycle process of making full use of modern information technology, in-depth development and extensive use of water conservancy information resources, including the collection, transmission, storage, processing and service of water conservancy information, and comprehensively improving the efficiency and effectiveness of water conservancy activities. Flood forecasting for medium and small rivers is an effectiv...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G06Q10/04G06Q50/26G06F16/2458G06F16/29G06K9/62
CPCG06F16/2465G06F16/29G06Q10/04G06Q50/265G06F18/253Y02A10/40
Inventor 冯钧杭婷婷郭涛李晓东朱跃龙
Owner HOHAI UNIV
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