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Inversion algorithm for moisture absorption growth factor of uniformly mixed aerosol

A growth factor and uniform mixing technology, applied in the field of atmospheric measurement, can solve problems such as measurement constraints of aerosol moisture absorption growth factor

Active Publication Date: 2020-03-27
CHENGDU UNIV OF INFORMATION TECH
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Problems solved by technology

[0005]The current general aerosol hygroscopic growth model is difficult to accurately characterize the complexity of aerosol hygroscopicity
In addition, the measurement of aerosol moisture absorption growth factor is also restricted by the complexity of technology and equipment

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  • Inversion algorithm for moisture absorption growth factor of uniformly mixed aerosol
  • Inversion algorithm for moisture absorption growth factor of uniformly mixed aerosol
  • Inversion algorithm for moisture absorption growth factor of uniformly mixed aerosol

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Embodiment Construction

[0062] The technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative work shall fall within the protection scope of the present invention.

[0063] See Figure 1-6 The present invention provides a technical solution: an inversion algorithm for the moisture absorption growth factor of a uniformly mixed aerosol, including the following steps:

[0064] S1: Selected data: Including the hourly observation data of the turbidity meter, black carbon meter and GRIMM180 environmental particulate matter monitor in Chengdu from October to December 2017, and the environmental weather monito...

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Abstract

The invention discloses an inversion algorithm for a moisture absorption growth factor of uniformly mixed aerosol in the field of atmospheric measurement. The inversion algorithm comprises the following steps: S1, selecting data; S2, processing the data: carrying out component decomposition on the atmospheric extinction coefficient, and constructing an objective function taking a uniformly mixed aerosol moisture absorption growth factor as a unique variable by virtue of a Mie scattering theory; S3, inverting the moisture absorption growth factor of the uniformly mixed aerosol, and for all testsamples, quickly converging the immune evolutionary algorithm for inverting the moisture absorption growth factor of the uniformly mixed aerosol to a globally optimal solution; and S4, further establishing a localization model for moisture absorption growth of the uniformly mixed aerosol in autumn and winter in the Chengdu region. Compared with an existing universal aerosol moisture absorption growth model, the model remarkably improves the simulation precision of the aerosol scattering coefficient under the environmental condition; and the inversion algorithm has universality, and can provide algorithm guarantee for subsequent research of aerosol hygroscopicity and radiation forced effect thereof.

Description

Technical field [0001] The invention relates to the technical field of atmospheric measurement, in particular to an inversion algorithm for the moisture absorption growth factor of a uniformly mixed aerosol. Background technique [0002] Aerosol refers to a multiphase system composed of solid and liquid particles suspended in the atmosphere. Due to the hygroscopicity of inorganic components such as sulfate, nitrate, ammonium salt and sea salt and some organic particles in the aerosol, the microphysical parameters such as particle size, mass, density and refractive index will change under different water vapor conditions. As a result, the macroscopic physical and chemical properties of different aerosol particles are constantly changing. The hygroscopicity of atmospheric aerosols is the link between the microphysical and chemical parameters of aerosols, and it is also the decisive parameter of the basic optical properties of aerosols. [0003] Aerosols in the actual atmosphere are...

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06F17/18G06F17/15G06F30/20G06N3/12
CPCG06F17/18G06F17/15G06N3/126
Inventor 倪长健张智察张莹杨寅山
Owner CHENGDU UNIV OF INFORMATION TECH
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