Heaven and earth integrated information-based PM2.5 concentration monitoring method

Abstract

The invention discloses a heaven and earth integrated information-based PM2.5 concentration monitoring method. The heaven and earth integrated information-based PM2.5 concentration monitoring method comprises the following steps of A, receiving and acquiring remote-sensing satellite image data in real time from a polar orbit satellite receiving station; B, converting the remote-sensing satellite image data to each stage of image product by a pre-processing module, and calculating to finally obtain a brightness temperature value and a surface reflectivity value; C, performing atmospheric aerosol optical thickness inversion to obtain determined atmospheric aerosol optical thickness AOD under an aerosol mode; D, building a satellite remote-sensing PM2.5 concentration monitoring space variablecoefficient regression model to obtain a PM2.5 concentration calculation formula of a to-be-estimated point; and E, calculating to obtain PM2.5 concentration yi of all pixel points in an image of a to-be-monitored region. By the heaven and earth integrated information-based PM2.5 concentration monitoring method, PM2.5 concentration monitoring in a designated monitoring region can be efficiently and accurately achieved.

Description

technical field [0001] The present invention relates to a PM 2.5 Concentration monitoring method, especially related to a PM based on integrated space-ground information 2.5 concentration monitoring method. Background technique [0002] Atmospheric fine particulate matter (PM 2.5 ) refers to particles with an aerodynamic diameter less than or equal to 2.5 μm. Its chemical composition mainly includes organic carbon, elemental carbon, nitrate and sulfate, etc. It is one of the important components of air pollution and the main cause of haze. Atmospheric fine particles are easily accompanied by toxic and harmful substances. Suspended in space for a long time, they will be breathed into the respiratory tract, bronchi and lungs by the human body, causing a great impact on human health. [0003] The state and environmental protection departments at all levels have taken various measures to improve air quality in recent years, and have paid special attention to the monitoring sy...

AI Technical Summary

Problems solved by technology

Traditional ground monitoring methods have shortcomings such as discrete observation points, uneven distribution, and high construction costs. Compared with traditional ground monitoring methods, polar-orbiting satellite remote sensing has a wide range of spatial scales, continuous earth observation imaging, and high temporal resolution. advantage, for near-surface PM 2.5 Concentration information acquisition provides

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