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Small watershed rainstorm and flood online analysis and prediction method

A forecasting method and small watershed technology, applied in forecasting, weather condition forecasting, measuring devices, etc., can solve the problems of slow analysis efficiency, complex calculation logic, large amount of rainfall data query speed, etc., achieve high efficiency, improve query efficiency, Solve the effect of slow data query

Pending Publication Date: 2022-05-10
POWERCHINA XIBEI ENG
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Problems solved by technology

[0006] This application provides an online analysis and prediction method for small watershed rainstorms and floods, which solves the problems of large amount of rainfall data in small and medium-sized watersheds, slow query speed, complex calculation logic, and slow analysis efficiency in the prior art

Method used

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  • Small watershed rainstorm and flood online analysis and prediction method
  • Small watershed rainstorm and flood online analysis and prediction method
  • Small watershed rainstorm and flood online analysis and prediction method

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Embodiment Construction

[0040] The embodiments will be described in detail hereinafter, examples of which are illustrated in the accompanying drawings. When the following description refers to the accompanying drawings, the same numerals in different drawings refer to the same or similar elements unless otherwise indicated. The implementations described in the following examples do not represent all implementations consistent with this application. These are merely examples of systems and methods consistent with aspects of the present application as recited in the claims.

[0041] The core idea of ​​the small watershed rainstorm and flood online efficient analysis and prediction system is based on the traditional method of small watershed early warning and forecasting in hydrology, combined with the characteristics of existing data storage optimization query methods and program code collection, to effectively improve the efficiency of system early warning decision-making.

[0042] The present invent...

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Abstract

The invention relates to a small-watershed rainstorm and flood online analysis and prediction method. The method comprises the following steps: obtaining rainfall data and flood occurrence data of small-watershed rainstorm; establishing a Mysql relational database and a column database, and creating a mapping relationship based on key fields of the two databases; inputting the rainfall data and the flood occurrence data of the small watershed rainstorm into the Mysql relational database and the column database; obtaining rainfall data per hour in the rainfall data of the small watershed rainstorm; inputting the rainfall data per hour into an ArrayList array set, and dividing a time period when the rainstorm occurs; the rainfall Pi of each hour in the future 24 hours is predicted according to the occurrence time period of the rainstorm, and the net rainfall Ri of runoff production and the peak flood flow Qm of confluence are calculated; predicting the maximum 1h rainfall Pi and the maximum rainfall intensity value in the future 24h according to the occurrence time period of the rainstorm, judging whether the rainstorm intensity is critical or not, and judging whether the rainstorm intensity is critical or not; if the critical rainstorm intensity is reached, rainstorm early warning is started; and determining the highest flood level and occurrence time.

Description

technical field [0001] The application relates to the technical field of flood control in small watersheds, in particular to an online analysis and prediction method for rainstorms and floods in small watersheds. Background technique [0002] Flooding is one of the major threats to humans in nature today. Flood disasters have become one of the most frequent and high-mortality natural disasters in China, seriously threatening the safety of people's lives, property and water. [0003] As an important basis for flood control and disaster reduction, the accuracy and efficiency of small watershed rainstorm and flood warnings are particularly important. The large amount of rainfall data in each small watershed, the different density of rainfall station network, and the different parameters of each watershed bring certain complexity to the rainstorm warning and flood forecast in small watersheds. At the same time, the goal of the real-time flood forecasting system has always been...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06F16/25G06F16/22G06F16/28G06F16/29G06Q10/04G06Q50/26G01W1/10G08B21/10
CPCG06F16/256G06F16/221G06F16/284G06F16/29G06Q10/04G06Q50/265G01W1/10G08B21/10Y02A10/40Y02A50/00
Inventor 杨党锋张群徐俊戴荣王慧敏袁鹏博张磊李阳
Owner POWERCHINA XIBEI ENG
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