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

CN103593583AInactive Publication Date: 2014-02-19MIN OF CIVIL AFFAIRS NAT DISASTER REDUCTION CENT

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Patent Information

Authority / Receiving Office: CN · China
Current Assignee / Owner: MIN OF CIVIL AFFAIRS NAT DISASTER REDUCTION CENT
Publication Date: 2014-02-19
Estimated Expiration: Not applicable · inactive patent

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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.

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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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