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A full-area environment risk evaluation method based on an ArcGIS

A technology of environmental risk and evaluation method, applied in data processing applications, instruments, calculations, etc., can solve the problems of error tree compilation, large workload, wide parameter value, etc.

Inactive Publication Date: 2019-05-03
TIANJIN UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

Different evaluation methods can be selected according to different evaluation environments. However, each evaluation method has certain defects. For example, the logic analysis method is widely used, but there are problems such as heavy workload and error-prone fault tree compilation.
The comprehensive analysis method is concise and clear, but the parameter values ​​are wide, and only macro evaluation can be carried out

Method used

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  • A full-area environment risk evaluation method based on an ArcGIS
  • A full-area environment risk evaluation method based on an ArcGIS
  • A full-area environment risk evaluation method based on an ArcGIS

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Experimental program
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Embodiment Construction

[0052] The present invention will be further described below in conjunction with the drawings.

[0053] The invention is based on the ArcGIS-based global environmental risk assessment method, adopts the environmental risk index characterization method, and combines the spatial analysis technology of the geographic information system to obtain a regional environmental risk index distribution map, and combines the regional environmental risk sensitivity index distribution map to obtain the regional environment Risk distribution map, which enables environmental risk zoning and management. Such as figure 1 As shown, the specific implementation process is as follows:

[0054] The invention is based on the ArcGIS-wide environmental risk assessment method, and is realized through a series of processes such as identification of environmental risk sources, risk characterization, regional environmental risk, sensitivity characterization and superposition. Such as figure 1 As shown, the ...

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Abstract

The invention discloses an ArcGIS-based all-region environment risk evaluation method. The method comprises the steps of collecting data; identifying an environmental risk source; characterizing the risk of an environmental risk source; Characterizing the environmental risk sensitivity index; Environment danger index representation; Environmental risk evaluation; Environment risk zoning. Accordingto the method, ArcGIS software is used for representing the environmental risk and the environmental risk sensitivity, the environmental risk of each position is determined, and on the basis, the regional environmental risk is more finely evaluated and analyzed.

Description

Technical field [0001] The invention belongs to the field of environmental risks, and more specifically, relates to an ArcGIS-based environmental risk assessment method for a whole region. Background technique [0002] In recent years, with the rapid development of urbanization, urban risks have gradually become prominent, and major environmental pollution incidents have occurred frequently, posing serious safety threats to people's lives and properties. Therefore, environmental risk assessment is not only an inevitable result of the development of environmental science, but also an urgent need for social security. There are many quantitative evaluation methods for environmental risks, including fuzzy mathematics, comprehensive evaluation, information diffusion, and logical analysis. Different evaluation methods can be selected according to different evaluation environments. However, each evaluation method has certain defects. For example, the logic analysis method is widely use...

Claims

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Application Information

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IPC IPC(8): G06Q10/06G06Q50/26
Inventor 文艺赵鹏
Owner TIANJIN UNIV
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