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MAX-DOAS based vertical profile inversion algorithm used for measuring aerosol and trace quantity pollution gas

A technology of polluted gas and trace gas, applied in the fields of environmental science and ground-based remote sensing, can solve the problem of lack of vertical profile inversion algorithm, achieve automatic inversion measurement, expand application scope, and facilitate programming.

Inactive Publication Date: 2018-11-30
UNIV OF SCI & TECH OF CHINA
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Problems solved by technology

In view of the fact that my country's current ground-based remote sensing is mainly based on the inversion of the total tropospheric column, there is a lack of reasonable and effective vertical profile inversion algorithms

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  • MAX-DOAS based vertical profile inversion algorithm used for measuring aerosol and trace quantity pollution gas
  • MAX-DOAS based vertical profile inversion algorithm used for measuring aerosol and trace quantity pollution gas
  • MAX-DOAS based vertical profile inversion algorithm used for measuring aerosol and trace quantity pollution gas

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Embodiment Construction

[0027] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only some, not all, embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the protection scope of the present invention.

[0028] see figure 1 , based on the MAX-DOAS vertical profile inversion algorithm for aerosols and trace pollution gases, including the following steps:

[0029] The first step: Spectral band selection. The differential absorption spectral analysis method is to perform qualitative and quantitative inversion by measuring the characteristic absorption bands of various gas components. Different atmospheric components have different absorption bands. The ground-bas...

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Abstract

The invention discloses a MAX-DOAS based vertical profile inversion algorithm used for measuring aerosol and trace quantity pollution gas. According to the MAX-DOAS based vertical profile inversion algorithm used for measuring aerosol and trace quantity pollution gas, Lambert-Beer's law is adopted, QDOAS is adopted for calculating ultraviolet wave band and visible wave band O4 difference slant column intensity, and difference slant column intensities of trace quality gas including nitrogen dioxide, sulfur dioxide, formaldehyde, nitrous acid, and glyoxal; different wave band O4 DSCD inversion of corresponding wave band aerosol profile is carried out; the aerosol optical thickness obtained through inversion and real aerosol optical thickness measured using a sun photometer are extracted andcompared, and the hour average result of trace quality gas profile bottom layer concentration is extracted, and is compared with nationally controlled station ground corresponding gas concentration. The MAX-DOAS based vertical profile inversion algorithm is used for solving foundation passive remote sensing observation vertical profile inversion algorithm problems, realizing rapid, continuous, high efficiency monitoring on atmosphere aerosol and polluted gas space-time change characteristics, and satisfying requirements on environment pollution study and monitoring.

Description

technical field [0001] The invention relates to the fields of environmental science and ground-based remote sensing technology, in particular to a vertical profile inversion algorithm for aerosol and trace pollution gas based on MAX-DOAS. Background technique [0002] With the increasing severity of environmental problems and the increasingly obvious trend of internationalization, the necessity and urgency of solving environmental problems are increasingly recognized by countries all over the world. Compared with the traditional ground sampling and analysis technology, ground-based remote sensing has the characteristics of fast speed, large amount of information, strong real-time performance, and no need for observers to be on duty. It has incomparable advantages in the field of environmental monitoring. At present, the work carried out in my country in regional air pollution observation is mainly based on ground sampling, supplemented by sounding balloons to observe regiona...

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01N21/31G01N21/33
CPCG01N21/31G01N21/33
Inventor 刘诚
Owner UNIV OF SCI & TECH OF CHINA
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