Analysis method for uncertainty influence on drainage basin runoff by different change conditions

A deterministic method and uncertainty technology, applied in special data processing applications, instruments, electrical digital data processing, etc., can solve the problems of comprehensive impact failure to systematically consider, ignoring the uncertainty of changes in human activities, etc.

Active Publication Date: 2017-01-04
TAIYUAN UNIV OF TECH
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Problems solved by technology

[0002] At present, researches on the influence of changing conditions on the uncertainty of watershed runoff often only use hydrological deterministic methods, and only consider a single uncertainty factor, and only consider the uncertainty of hydrological models, climate scenarios, or model coupling uncertainties. , but the comprehensive impact of various uncertain factors has not been considered systematically, and most studies have ignored the uncertainty of human activity changes

Method used

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  • Analysis method for uncertainty influence on drainage basin runoff by different change conditions
  • Analysis method for uncertainty influence on drainage basin runoff by different change conditions
  • Analysis method for uncertainty influence on drainage basin runoff by different change conditions

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Embodiment 1

[0032] figure 1 Show the flow chart of the analysis method of the impact of different changing conditions of the present invention on the uncertainty of watershed runoff, including the following steps:

[0033] Step 1. Collect and process the basic data of the study area, including hydrometeorological data and spatial information data. Rainfall, runoff and meteorological data are all on a daily scale. Meteorological data include daily temperature, wind speed, relative humidity, sunshine hours and other meteorological data; spatial information data include DEM data (Digital Elevation Model, digital elevation model), soil distribution map and land Use a distribution map.

[0034] Step 2, construct the SWAT model of the study area. The collected basic data is input into the SWAT model, and the relevant parameters of the SWAT model are determined based on the parameter sensitivity analysis results, and the hydrological simulation is carried out.

[0035] Step 3: Construct scena...

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Abstract

The invention discloses an analysis method for an uncertainty influence on drainage basin runoff by different change conditions. The analysis method mainly comprises the following steps: utilizing a hydrological certainty method and a hydrological uncertainty method to compare and analyze the uncertainty influence of condition changes on the drainage basin runoff, the above two methods are mutually compared so as to give a runoff change uncertainty range from different angles, the reliability of a result is improved, and a reference is provided for a decision maker to carry out water resource planning and management.

Description

technical field [0001] The invention relates to the field of research on the uncertainty of watershed runoff, in particular to an analysis method for the influence of different changing conditions on the uncertainty of watershed runoff. Background technique [0002] At present, researches on the influence of changing conditions on the uncertainty of watershed runoff often only use hydrological deterministic methods, and only consider a single uncertainty factor, and only consider the uncertainty of hydrological models, climate scenarios, or model coupling uncertainties. , but the comprehensive impact of various uncertain factors has not been considered systematically, and most studies have ignored the uncertainty of human activity changes. Contents of the invention [0003] The present invention aims to provide an analysis method for the impact of different changing conditions on the uncertainty of watershed runoff, which integrates the use of hydrological deterministic me...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06F17/50
CPCG06F30/00G06F2111/10
Inventor 祝雪萍武鹏林赵雪花蔡文君
Owner TAIYUAN UNIV OF TECH
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