Integrated flood disaster accurate monitoring and early warning method

Abstract

The invention relates to flood disaster monitoring and early warning, in particular to an integrated flood disaster accurate monitoring and early warning method, which comprises the following steps of: acquiring heterogenous multi-scale monitoring data, and quickly extracting a flood inundation area from large-scale flood disaster data based on a multi-source satellite remote sensing platform through multi-scale super-pixel segmentation; and performing image splicing on the medium-scale flood disaster data based on the unmanned aerial vehicle platform based on the optimal suture line to obtain a flood disaster result of the unmanned aerial vehicle image, and obtaining multi-dimensional features from the small-scale flood disaster data based on the Internet of Things platform in combination with a multi-modal deep neural network and a structured sparse classification selection model. A Bayesian network risk assessment model is constructed, and a basis is provided for flood disaster early warning and decision making; according to the technical scheme provided by the invention, the defects that comprehensive integrated heterogeneous multi-scale monitoring data cannot be effectively and comprehensively utilized, and the problems of spatial heterogeneity, risk dynamic change and risk multi-level of flood disasters cannot be effectively solved can be effectively overcome.

Description

technical field [0001] The invention relates to flood disaster monitoring and early warning, in particular to an integrated accurate monitoring and early warning method for flood disasters. Background technique [0002] With global warming, flood disasters are becoming more frequent, and disaster risk monitoring, early warning and assessment, as an important means of disaster prevention and mitigation, have become one of the core contents of current disaster science research. Flood disaster is one of the most frequent and serious natural disasters in the world. In recent years, the occurrence of flood disasters in China has become more frequent and more intense, and the impact and damage on human society, economy and ecological environment have become more and more serious. Due to the lack of ideological and material preparations for the occurrence of flood disasters, it is not uncommon for disaster losses to increase. Therefore, it is of great practical significance to st...

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Problems solved by technology

[0008] In view of the above-mentioned shortcomings existing in the prior art, the present invention provides an integrated accurate monitoring and early warning method for flood disasters, which can effectively overcome the failure of comprehensively integrated heterogeneous and multi-scale monitoring data existing in the prior art. And the shortcomings of not being able to effectively solve the spatial heterogeneity of flood disasters, dynamic changes in risk, and multi-level risks

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