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Non-consistent design flood calculation method considering influence of flood season dispersity

A design flood and calculation method technology, applied in calculation, computer-aided design, design optimization/simulation, etc., can solve problems such as difficult to reflect seasonal variability within a flood year, and achieve the effect of overcoming large or small results

Active Publication Date: 2020-08-28
YELLOW RIVER INST OF HYDRAULIC RES YELLOW RIVER CONSERVANCY COMMISSION +1
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Problems solved by technology

However, from the perspective of simulating flood characteristics, affected by human activities, the measured data series of the annual maximum flood peak in a changing environment can only describe the inconsistency of the interannual variation of the flood magnitude, and it is difficult to reflect the seasonal variation of the flood within the year sex

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  • Non-consistent design flood calculation method considering influence of flood season dispersity
  • Non-consistent design flood calculation method considering influence of flood season dispersity
  • Non-consistent design flood calculation method considering influence of flood season dispersity

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Embodiment Construction

[0049] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only some, not all, embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the protection scope of the present invention.

[0050] Such as figure 1 As shown, the non-uniform design flood calculation method considering the dispersion influence of flood season in this embodiment includes the following steps:

[0051] Step S11, constructing flood super-quantitative series POT;

[0052] Step S12, analyzing the seasonal distribution characteristics of the flood within a year according to the flood overquantity series POT in step S11;

[0053] Step S13, according to the flood seasonali...

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Abstract

The invention belongs to the technical field of basin design flood derivation, and particularly relates to a non-consistent design flood calculation method considering influence of flood season dispersity. The non-consistent design flood calculation method comprises the following steps of: constructing a flood hyper-quantitative series POT; analyzing seasonal distribution characteristics of the flood in the year according to the over-quantitative series POT of the flood; constructing a POT flood probability distribution model by combining the flood flow magnitude sequence model and the flood intra-year occurrence frequency sequence model according to a flood seasonal test result; selecting the annual population Kt as a potential human activity indirect factor, and establishing a mathematical model between the Kt and statistical parameters of the flood flow magnitude sequence and the flood annual occurrence frequency sequence; and substituting the established statistical parameter mathematical model into the POT flood probability distribution model, and calculating a non-uniform design flood value according to a specified recurrence period of flood control requirements. According tothe non-consistent design flood calculation method, the defect that the flood calculation result designed based on the POT hyper-quantitative sequence is too large or too small is overcome to a certain extent, and support is provided for basin flood risk scheduling and management.

Description

technical field [0001] The invention belongs to the technical field of watershed design flood calculation, and in particular relates to a non-uniform design flood calculation method considering the dispersion influence of flood seasons. Background technique [0002] Traditional design flood calculation techniques usually extract flood samples based on the annual maximum flood peak measured data series. However, from the perspective of simulating flood characteristics, affected by human activities, the measured data series of the annual maximum flood peak in a changing environment can only describe the inconsistency of the interannual variation of the flood magnitude, and it is difficult to reflect the seasonal variation of the flood within the year sex. Due to the influence of human activities, the magnitude and frequency of flood series have significant time-varying characteristics. Among them, the magnitude of flood series may show a trend of gradual change, and the frequ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06F30/20G06F17/18G06Q50/26G06F113/08
CPCG06F30/20G06F17/18G06Q50/26G06F2113/08Y02A10/40
Inventor 李凌琪闫磊张楠殷会娟党素珍张文鸽
Owner YELLOW RIVER INST OF HYDRAULIC RES YELLOW RIVER CONSERVANCY COMMISSION
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