A method and system for measuring vertical transport flux of atmospheric aerosol mass

A technology of atmospheric aerosol and measurement method, which is applied in the field of atmospheric detection, can solve problems such as the inability to measure aerosol mass flux, and achieve objective and accurate measurement, good time and space representative effect

Active Publication Date: 2018-01-30
UNIV OF SCI & TECH OF CHINA
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

In addition, the current eddy correlation method only measures the flux of aerosol number density, but cannot measure the mass flux of aerosols that people care about.

Method used

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  • A method and system for measuring vertical transport flux of atmospheric aerosol mass
  • A method and system for measuring vertical transport flux of atmospheric aerosol mass
  • A method and system for measuring vertical transport flux of atmospheric aerosol mass

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Embodiment

[0062] figure 1 It is a flow chart of a method for measuring the vertical transport flux of atmospheric aerosol mass provided by the embodiment of the present invention. Such as figure 1 As shown, it mainly includes the following steps:

[0063] Step 1. Calculate the real part of the atmospheric effective refractive index and the ratio of the atmospheric temperature to the real part of the atmospheric effective refractive index according to the measured atmospheric average temperature and atmospheric average pressure.

[0064] The gas components and aerosol particles in the atmosphere are regarded as an effective medium as a whole. The equivalent refractive index of the effective medium is called the effective refractive index, with n eff express. Order n Re and n Im represent the real and imaginary parts of the effective refractive index, namely n eff =n Re +n Im .

[0065] Among them, the real part of the atmospheric effective refractive index n Re The fluctuation...

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Abstract

The invention discloses a method for measuring the vertical transport flux of atmospheric aerosol mass, comprising: calculating the real part of the effective refractive index of the atmosphere according to the measured average temperature and average pressure of the atmosphere, and calculating the real part of the effective refractive index of the atmosphere and the real part of the effective refractive index of the atmosphere Calculate the imaginary part of the effective refractive index of the atmosphere according to the atmospheric visibility, and then calculate the ratio of the mass concentration of the atmospheric aerosol to the imaginary part of the effective refractive index of the atmosphere according to the change of the mass concentration of aerosol particles and the imaginary part of the effective refractive index of the atmosphere; The ratio of the real part of the atmospheric effective refractive index to the real part of the atmospheric effective refractive index, the ratio of the atmospheric aerosol mass concentration to the imaginary part of the atmospheric effective refractive index, and the structural constant of the atmospheric effective refractive index calculated by the preset method are used to calculate the vertical transport flux of the atmospheric aerosol mass. This method can realize the objective and accurate measurement of the vertical transport flux of atmospheric aerosol mass, and has good temporal and spatial representation.

Description

technical field [0001] The invention relates to the technical field of atmospheric detection, in particular to a method and system for measuring vertical transport flux of atmospheric aerosol mass. Background technique [0002] At present, the impact of atmospheric aerosols has attracted great attention from the whole society. A large number of observations have been carried out, such as observations of particle concentrations for environmental protection, ground-based and remote sensing observation networks for tropospheric aerosol characteristics and radiative forcing studies (measurement of the entire layer aerosol optical depth, aerosol concentration, physical and chemical properties, etc.), and targeted concentrated scientific experiments, etc. In the past two decades, great progress has been made in the measurement of aerosol concentration, distribution, and aerosol physical and chemical properties. Learn that aerosols affect the Earth's energy budget by scattering a...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G01N21/41
Inventor 袁仁民傅云飞
Owner UNIV OF SCI & TECH OF CHINA
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