Method for predicting rain accommodation capability

A technology of capacity and rainfall, which is applied in the field of rain receiving capacity forecasting, can solve the problems of process allocation and rainfall duration without considering the rain receiving capacity, and does not involve the rain receiving capacity of the river station, so as to achieve the effect of wide application range and reasonable results

Inactive Publication Date: 2019-04-30
山东省水文局
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Problems solved by technology

[0003] 1. It does not involve the rain receiving capacity of the river station;
[0004] 2. Calculate the rain receiving capacity only through the characteristics of runoff production and confluence, such as runoff coefficient;
[0005] 3. Only the total rain receiving capacity is considered, and the process distribution and rainfall duration of the rain receiving capacity are not considered

Method used

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  • Method for predicting rain accommodation capability
  • Method for predicting rain accommodation capability

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Embodiment Construction

[0014] The present invention will be further described below in conjunction with the accompanying drawings and specific embodiments.

[0015] A method for forecasting rainfall receiving capacity, such as figure 1 Shown is the flow chart of this method, which includes the following steps: S01), setting target flow or target water level, such as the warning water level of the river station, the flood limit water level of the reservoir station, etc.;

[0016] S02), set the rain pattern of future rainfall, such as average rainfall or typical rainstorm process, etc., and calculate the future rain receiving capacity according to this rain pattern;

[0017] S03), set the initial trial calculation value, the forecaster sets the initial trial calculation value according to the current real-time water and rain conditions combined with his own experience, according to this initial value can reduce the number of trial calculations, and at the same time integrate expert experience into the...

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Abstract

The invention discloses a method for predicting the rain accommodation capability. Calculation is carried out by using an actual forecasting scheme of the section. The forecasting scheme is close to the actual situation by being compared with the single runoff producing characteristic parameter. In the actual prediction, predicting results are varied due to different rainfall types. According to the disclosed method, the rainfall types are allocated and fused, so that the results become reasonable and are close to the actual situation, thereby providing the scientific basis for flood prevention. Moreover, since the method uses the prediction scheme for calculation, the method can be applied to the river stations, reservoir stations and gate station with the wide application range.

Description

technical field [0001] The invention relates to a method for forecasting rain receiving capacity, which belongs to the technical field of hydrological measurement. Background technique [0002] At present, techniques similar to rainfall receiving capacity forecasting are mainly the analysis of reservoir rain receiving capacity. The maximum rain receiving capacity refers to consideration of factors such as reservoir engineering parameters, operation and scheduling of drainage facilities, soil moisture content in the rain collection area (early rainfall) and flow generation and confluence characteristics. , the maximum rainfall that the reservoir is allowed to accommodate within a certain period of time under the condition of flood control safety, and the maximum rainfall receiving capacity reflects the flood control capability of the reservoir within a certain period of time. The disadvantages of this technique are: [0003] 1. It does not involve the rain receiving capacity...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01W1/14
CPCG01W1/14
Inventor 宋承新庄会波周垂志宗瑞英张玉李德刚刘凯郭增李环薛春珂田亚男
Owner 山东省水文局
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