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Method and system for analyzing flood process encountering time and magnitude occurrence rule

An analysis method and flood technology, applied in data processing applications, instruments, calculations, etc., can solve problems that are not involved and do not consider the sequence of downstream sections, so as to ensure the safety of flood control objects, overcome cognitive limitations, and improve flood control capabilities Effect

Active Publication Date: 2021-02-23
HUAZHONG UNIV OF SCI & TECH +1
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  • Application Information

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Problems solved by technology

It does not consider the order in which the floods of each river reach the downstream section; it does not involve the combination of various flood levels under the risk of encountering a certain flood process

Method used

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  • Method and system for analyzing flood process encountering time and magnitude occurrence rule
  • Method and system for analyzing flood process encountering time and magnitude occurrence rule
  • Method and system for analyzing flood process encountering time and magnitude occurrence rule

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Embodiment Construction

[0030] In order to make the object, technical solution and advantages of the present invention clearer, the present invention will be further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described here are only used to explain the present invention, not to limit the present invention. In addition, the technical features involved in the various embodiments of the present invention described below can be combined with each other as long as they do not constitute a conflict with each other.

[0031] At present, research on flood encounters is mainly to count the frequency of flood encounters in historical data, or to calculate the probability of floods exceeding a certain magnitude. The time sequence encounter law at the confluence of the flood and the most probable magnitude combination research under a certain risk of the flood process encounter. However, the research in this aspe...

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Abstract

The invention discloses a method and a system for analyzing a flood process encountering time and magnitude occurrence rule, and belongs to the field of hydrological analysis and calculation in hydrology. At present, the research on flood encountering is mainly to count the occurrence frequency of historical flood encountering or calculate the probability of exceeding a certain magnitude of flood,and has limitations in the aspect of comprehensively analyzing the occurrence time and magnitude law of flood encountering. The time sequence encountering rule of the multi-river flood reaching the converging port and the most possible magnitude combination research under a certain risk in the flood process are not involved. According to the method, various situations that upstream and downstreamflood and main and branch flood reach the confluence section when flood encounters are explored, the conditional probability of flood encountering under different situations is analyzed, and the mostpossible flood magnitude combination form under the specified risk probability is further disclosed; the understanding limitation of single risk probability calculation in the flood process is overcome, and a scientific basis and effective support are provided for improving the flood control capacity of the drainage basin and guaranteeing the safety of flood control objects.

Description

technical field [0001] The invention belongs to the field of hydrological analysis and calculation in hydrology, and more specifically relates to a method and system for analyzing the encounter time and magnitude occurrence rules of a flood process. Background technique [0002] Flood encounter is a hydrological phenomenon in which the main and tributary or upstream and downstream flood peaks or flood processes reach a certain downstream section at the same time. It has simultaneity in time, and generally has homogeneity with large peak height and quantity in magnitude. The flood encounter phenomenon defined by mathematical language is that more than half of the flood process reaching the downstream section overlaps, which is the flood encounter. At present, the current research on flood encounters is mainly to count the frequency of flood encounters in historical data, or to calculate the probability of floods exceeding a certain magnitude. It does not consider the order ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06Q10/06G06Q50/26
CPCG06Q10/0635G06Q50/265Y02A10/40
Inventor 陈璐李妍清仇红亚刘冬英徐高洪戴明龙齐尧乐葛林松陈玺张冬冬李立平汪青静王含
Owner HUAZHONG UNIV OF SCI & TECH
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