Hydrological forecasting method

A technology for hydrological forecasting and water system, applied in the field of hydrology, can solve the problems of difficult to achieve accurate, fast and efficient early warning effect, inaccurate and timely hydrological forecasting, and increasing errors, so as to achieve efficient and fast forecasting efficiency, enhance rigor and accuracy The effect of ensuring the efficiency of forecasting

Pending Publication Date: 2020-08-14
李杰 +1
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Problems solved by technology

[0003] The hydrological forecast in the existing technology is not accurate enough and timely, and often needs to rely on the analysis and processing experience of the hydrological admi

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[0029] The present invention will be further described in detail below in conjunction with the drawings.

[0030] Reference attachment figure 1 And figure 2 , A hydrological forecast method, including the following steps:

[0031] Step S1. Collect the rainfall sample data set within a certain period of time from the rainfall station corresponding to a river basin. The rainfall sample data set includes the hourly water level information and the sum of the accumulated rainfall every hour; multiple different rainfalls should be selected Station for collection.

[0032] Step S2: Analyze the rainfall sample data set, and supplement and improve the missing items;

[0033] Step S3. Perform feature selection on the rainfall sample data set. In order to avoid the problem of rainfall accumulation and confluence, select the accumulated rainfall every 4 hours within 12 hours and as the new data item, which are respectively marked as RF_BF_4h, RF_BF_8H and RF_BF_12H;

[0034] Step S4, further com...

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Abstract

The invention discloses a hydrological forecasting method. The hydrological forecasting method comprises the following steps: collecting a rainfall sample data set of a rainfall station correspondingto a water drainage basin within a certain period of time; analyzing the rainfall sample data set, and supplementing and perfecting missing items in the rainfall sample data set; carrying out featureselection on the rainfall sample data set, and selecting the sum of rainfall accumulated every 4 hours within 12 hours as a new data item; s3, further performing comparative analysis on the rainfall sample data set subjected to feature selection in the step S3 and an actual environment; carrying out iterative selection of forward search on the rainfall sample data set subjected to comparative analysis in the step S4 so as to obtain rainfall after 4 hours, 8 hours and 12 hours; and acquiring water level values after 4 hours, 8 hours and 12 hours by a worker based on the step S5. The method hasthe advantages and effects that the hydrological prediction result is optimized, and the hydrological accuracy and timeliness are more considerable.

Description

technical field [0001] The invention relates to the field of hydrology, in particular to a hydrological forecasting method. Background technique [0002] Hydrological forecasting makes scientific predictions of future hydrological conditions (such as flood peak flow), especially accurate forecasts of disastrous hydrological phenomena, so as to realize flood control and disaster reduction and rational development and utilization of water resources. Improving the accuracy of hydrological forecasting is an important part of hydrological forecasting work, which plays a vital role in flood control and disaster reduction, protection of people's lives and property, and full use of water conservancy projects to improve the ecological environment. [0003] The hydrological forecast in the existing technology is not accurate enough and timely, and often needs to rely on the analysis and processing experience of the hydrological administrator, which is easy to cause the error to increa...

Claims

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Application Information

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IPC IPC(8): G06Q10/04
CPCG06Q10/04
Inventor 李杰刘德虎
Owner 李杰
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