Runoff forecasting model construction method and device, electronic equipment and medium

A technology for forecasting models and building methods, applied in computing models, measurement devices, neural learning methods, etc., can solve problems such as poor accuracy, and achieve the effect of improving accuracy

Pending Publication Date: 2021-07-23
CHINA INST OF WATER RESOURCES & HYDROPOWER RES
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Problems solved by technology

[0004] The embodiment of the present application provides a runoff forecasting model construction method, device

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  • Runoff forecasting model construction method and device, electronic equipment and medium
  • Runoff forecasting model construction method and device, electronic equipment and medium
  • Runoff forecasting model construction method and device, electronic equipment and medium

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Embodiment Construction

[0026] The following will clearly and completely describe the technical solutions in the embodiments of the present application with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are part of the embodiments of the present application, not all of them. Based on the embodiments in this application, all other embodiments obtained by persons of ordinary skill in the art without creative efforts fall within the protection scope of this application.

[0027] It should be noted that the terms "first" and "second" in the specification and claims of the present application are used to distinguish similar objects, and are not used to describe a specific order or sequence.

[0028] See figure 1 , figure 1 It is a flow chart of a method for building a runoff forecast model provided by an embodiment of the present application. The method can be executed by a device for building a runoff forecast model. The device for building...

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Abstract

The invention belongs to the technical field of hydrological analysis, and particularly relates to a runoff forecasting model construction method and device, electronic equipment and a medium. The method comprises the steps of obtaining a historical hydrological sequence of a target drainage basin and a target distribution function used for fitting a hydrological distribution condition of the target drainage basin; substituting the historical hydrological sequence into the target distribution function to obtain a first probability sequence; obtaining a probability prediction model, a second probability sequence and a prediction error sequence according to the first probability sequence; generating an error probability correlation function according to an error threshold sequence and the prediction error sequence; and according to the inverse function of the target distribution function, the probability prediction model and the error probability correlation function, generating a runoff prediction model for predicting the hydrological condition of the target drainage basin. According to the forecasting model construction method provided by the invention, through mutual cooperation of the target distribution function, the probability forecasting model and the error probability correlation function, the runoff forecasting model can have relatively high precision.

Description

technical field [0001] The application belongs to the technical field of hydrological analysis, and in particular relates to a runoff forecasting model building method, device, electronic equipment and medium. Background technique [0002] In recent years, due to the intensified impact of human activities on the underlying surface and hydrological factors such as evaporation / evaporation, infiltration, and runoff, the runoff in some areas has decreased and the relationship between precipitation and runoff has changed. [0003] Although the traditional mid-to-long-term hydrological forecasting method is based on historical hydrological series (multi-finger runoff), the hydrological forecasting model is constructed to carry out the forecasting work, but the precondition is to assume that the historical hydrological series satisfies independence, stationarity, consistency, etc. Require. For now, with the passage of time, the historical hydrological series of some watersheds no ...

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Application Information

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IPC IPC(8): G06K9/62G06N3/04G06N3/08G06N7/00G01W1/14
CPCG06N3/084G01W1/14G06N3/047G06N7/01G06N3/044G06F18/23213
Inventor 鲁帆周毓彦许怡然唐颖复严登华江明戴雁宇
Owner CHINA INST OF WATER RESOURCES & HYDROPOWER RES
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