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Area debris flow disaster risk estimation method

A debris flow and disaster technology, applied in the field of regional debris flow disaster risk estimation, can solve problems such as difficult to distinguish clearly

Inactive Publication Date: 2014-02-19
MIN OF CIVIL AFFAIRS NAT DISASTER REDUCTION CENT
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  • Abstract
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  • Application Information

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Problems solved by technology

In many cases, landslides and mudslides are closely related, go hand in hand, transform rapidly, and are difficult to distinguish clearly

Method used

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  • Area debris flow disaster risk estimation method

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Embodiment Construction

[0010] The specific embodiments of the present invention will be described in detail below with reference to the accompanying drawings. It should be understood that the specific embodiments described herein are only used to illustrate and explain the present invention, and not to limit the present invention.

[0011] figure 1 It is a flowchart of a method for estimating the risk of regional debris flow disasters according to an embodiment of the present invention. Such as figure 1 As shown, according to an embodiment of the present invention, a method for estimating the risk of a regional debris flow disaster is provided, and the method includes:

[0012] Obtain at least one hazard-generating factor and at least one hazard-causing factor for at least one debris flow disaster point in the region of interest from different data sources;

[0013] Calculating a debris flow disaster sensitivity index based on the at least one disaster-pregnancy factor;

[0014] Calculating a debris flow...

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Abstract

The invention discloses an area debris flow disaster risk estimation method. The method includes the following steps that at least one disaster pregnancy factor and at least one disaster causing factor for at least one debris flow disaster point in an interesting area are obtained from different data sources; a debris flow disaster sensibility index is calculated based on the disaster pregnancy factor; a debris flow disaster dangerousness index is calculated based on the debris flow disaster sensibility index and the disaster causing factor; at least one disaster bearing body vulnerability assessment factor is obtained, and a debris flow disaster vulnerability index is calculated based on the disaster bearing body vulnerability assessment factor; a debris flow disaster risk index is calculated based on the debris flow disaster dangerousness index and the debris flow disaster vulnerability index; debris flow disaster risks are estimated according to the calculated debris flow disaster risk index.

Description

Technical field [0001] The invention relates to a method for estimating the risk of regional debris flow disasters. Background technique [0002] Disaster is an objective event of energy exchange and material movement in celestial bodies and the earth's atmosphere system in the ecosystem. The Earth's atmosphere system is composed of the lithosphere, hydrosphere, atmosphere, and biosphere. Natural disasters are organically combined with atmospheric disasters, biological disasters, and geological disasters to form a system. [0003] Taking China as an example, its natural geography, geological structure, topography and climatic conditions are complex, and geological disasters are widely distributed, with many types, high frequencies, and high intensity. It is one of the most severe countries in the world. According to the destruction form, dynamic effect, material composition and destruction rate of geological disasters, China's geological disasters can be divided into 10 categories...

Claims

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Application Information

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IPC IPC(8): G06F19/00
Inventor 范一大聂娟王兴玲杨思全王平张薇崔燕吴玮和海霞林志强王志恒
Owner MIN OF CIVIL AFFAIRS NAT DISASTER REDUCTION CENT
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