pm based on space-ground integration information 2.5 Concentration monitoring method

Abstract

The invention discloses a PM based on space-ground integrated information 2.5 The concentration monitoring method includes the following steps: A: receiving and acquiring remote sensing satellite image data in real time from the polar-orbiting satellite receiving station; B: the preprocessing module converts the remote sensing satellite image data into image products of various levels, calculates and finally obtains the brightness temperature value and the ground surface Reflectance value; C: carry out the inversion of atmospheric aerosol optical depth, and obtain the atmospheric aerosol optical depth AOD under the determined aerosol model; D: construct satellite remote sensing to monitor PM 2.5 The spatial variation coefficient regression model of the concentration; the PM at the point to be estimated is obtained 2.5 Concentration calculation formula; E: Calculate the PM at all pixels in the image of the area to be monitored 2.5 Concentration i . The invention can efficiently and accurately realize the PM in the designated monitoring area 2.5 concentration monitoring.

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 a variety of possible means

[0004] At present, the use of remote sensing means, systematic and automatic monitoring of PM 2.5 The method of particulate matter concentration has not been popularized yet, and the relevant environmental protection departments lack a PM based on the integration of space and ground information. 2.5 Automated process monitoring method for particle concentration to support smog control efforts

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