Method and system for estimating inhalable particles based on HJ-1 satellite

Abstract

The invention discloses a method for estimating inhalable particles based on an HJ-1 satellite. The method comprises the following steps of: 1, inverting the optical thickness of an aerosol in a target area by original data which are acquired by charge coupled device (CCD) cameras of an HJ-1A satellite and an HJ-1B satellite, and interpolating and smoothing the optical thickness of the aerosol inthe target area; 2, acquiring the height of an atmospheric boundary layer through a laser radar, and vertically correcting the interpolated and smoothed optical thickness of the aerosol according to the height of the atmospheric boundary layer to obtain an extinction coefficient of a near-surface aerosol; 3, acquiring near-surface relative humidity by observation of a weather instrument, and performing humidity correction on the extinction coefficient of the near-surface aerosol to obtain the extinction coefficient of a dried near-surface aerosol, wherein the extinction coefficient is not influenced by moisture absorption growth; and 4, converting the extinction coefficient of the dried near-surface aerosol into the concentration of near-surface inhalable particles. The method has the advantage that: by continuously and dynamically acquiring atmospheric information through satellite remote sensing, the space distribution of the inhalable particles in a large area can be reflected comprehensively and dynamically.

Description

technical field [0001] The invention relates to the technical field of atmospheric environment remote sensing monitoring, in particular to a method and system for estimating inhalable particulate matter based on the Environment-1 satellite. Background technique [0002] As a major air pollutant, the impact of aerosols on public health has been recognized as a direct threat to human survival and sustainable development. Among them, inhalable particulate matter PM10 (particles with an aerodynamic diameter of less than 10 μm) can reach the bronchial area of ​​the human body, and particles with a particle size of less than 5 μm can reach the alveolar area, and some smaller examples can even enter the human blood circulation system through capillaries. Great harm to the heart and cardiovascular system. According to the 2006 Bulletin on the State of the Environment in China, among the 557 cities monitored in my country, 43.4% of them failed to meet the air quality standards, and ...

AI Technical Summary

Problems solved by technology

[0005] The technical problem to be solved by the present invention is how to comprehensively and dynamically reflect the spatial distribution of inhalable particulate matter in a large area, accurately analyze the source of pollutants and transport channels, and reduce equipment costs and maintenance complexity

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