Basic flow segmentation method and device based on seasonal conductivity data correction

A data correction and conductivity technology, which is applied in complex mathematical operations, climate sustainability, water resource assessment, etc., can solve the problems of difficult operation, reliability of segmentation methods, and the accuracy of segmentation results needs to be further improved, and high cost. Resolution, the effect of reducing data sample requirements, improving accuracy and reliability

Pending Publication Date: 2022-06-03
JILIN UNIV
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Problems solved by technology

Its advantage is that the operation is relatively convenient, and the accuracy is within an acceptable range; the disadvantage is that the reliability of the theoretical basis of the segmentation method

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  • Basic flow segmentation method and device based on seasonal conductivity data correction
  • Basic flow segmentation method and device based on seasonal conductivity data correction
  • Basic flow segmentation method and device based on seasonal conductivity data correction

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Embodiment Construction

[0068] The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, but not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

[0069] The embodiment of the present invention provides a base flow segmentation method based on seasonal conductivity data correction, such as figure 1 As shown, the base flow segmentation method includes the following steps:

[0070] S1. Collect data, including daily runoff and conductivity data.

[0071] In this step, the collected data includes the daily runoff Q and the daily-scale conductivity data SC, and the parameter SC is d...

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Abstract

The invention discloses a base flow segmentation method and device based on seasonal conductivity data correction, and the method comprises the steps: collecting data, including daily runoff and conductivity data; performing base flow segmentation by using a CMB method to obtain a day-based flow, and taking a segmentation result as a standard for subsequent ECK method parameter correction; correcting ECK method parameters year by year and season according to a CMB method segmentation result, taking day-based flow data obtained by the CMB method as a standard, searching an ECK method parameter combination enabling a basic flow calculation error to be minimum, and obtaining an optimal parameter combination in a wet season and a dry season; and carrying out base flow segmentation calculation by utilizing the corrected ECK method optimal parameter combination. According to the method, the advantages of the CMB method and the ECK method are fully utilized, the accuracy and reliability of the base flow segmentation result can be improved, the data sample requirement can be reduced, and the purposes of high resolution and low data are achieved.

Description

technical field [0001] The invention relates to the technical field of river base flow division, in particular to a base flow division method and device based on the correction of seasonal electrical conductivity data. Background technique [0002] The division of river base flow is to divide the river runoff by the proportion of surface runoff and base flow. The improvement and research of the base flow segmentation method has gradually become a hot topic in recent years. Continuously improving the convenience and accuracy of the base flow segmentation method, mastering the eigenvalues ​​of rivers and watersheds and the relationship between various hydrological elements is of great significance for the calculation of runoff and flow, hydrological simulation, etc. Agricultural water supply planning, water security, ecological environmental protection and other aspects are of great significance. [0003] At present, the main base flow segmentation methods are generally divi...

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Application Information

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IPC IPC(8): G06F17/10
CPCG06F17/10Y02A90/30
Inventor 吕航钟荣王琰夏晨曦张晶寒李博
Owner JILIN UNIV
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