Method for inverting aerosol components by using laser radar ratio and depolarization ratio

A laser radar and aerosol technology, which is applied in the directions of using re-radiation, analyzing materials, and electromagnetic wave re-radiation, etc., can solve problems such as the difference in depolarization ratio, and achieve the effect of high accuracy and low detection cost.

Active Publication Date: 2021-07-30
INST OF ATMOSPHERIC PHYSICS CHINESE ACADEMY SCI
View PDF3 Cites 6 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

It should be noted that the actual observed lidar ratio (Burton et al., 2012; Murayama et al., 2004) is relatively close to the water-soluble aerosol, but the depolarization ratio of the two is significantly different

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Method for inverting aerosol components by using laser radar ratio and depolarization ratio
  • Method for inverting aerosol components by using laser radar ratio and depolarization ratio
  • Method for inverting aerosol components by using laser radar ratio and depolarization ratio

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0067] The specific embodiments of the present invention will be further described below in conjunction with the accompanying drawings. It should be noted here that the descriptions of these embodiments are used to help understand the present invention, but are not intended to limit the present invention. In addition, the technical features involved in the various embodiments of the present invention described below may be combined with each other as long as they do not constitute a conflict with each other.

[0068] like figure 1 As shown, a method for retrieving aerosol components using lidar ratio and depolarization ratio, including: S1, distinguishing dust, spherical aerosol, and a mixture of dust and spherical aerosol according to the depolarization ratio; S2, Calculating the mixing ratio of the dust in the mixture of the dust and the spherical aerosol; S3, distinguishing the soot and the water-soluble aerosol in the spherical aerosol according to the lidar ratio.

[00...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to view more

PUM

No PUM Login to view more

Abstract

The invention discloses a method for inverting aerosol components by using a laser radar ratio and a depolarization ratio. The method comprises the following steps: S1, distinguishing sand dust, spherical aerosol and a mixture of the sand dust and the spherical aerosol according to a depolarization ratio; S2, calculating the mixing ratio of the sand and dust in the mixture of the sand and dust and the spherical aerosol; and S3, distinguishing the soot and the water-soluble aerosol in the spherical aerosol according to a laser radar ratio. According to the method, the aerosol components can be identified only through the wavelength with the polarization channel, the detection cost is low, and the accuracy is high.

Description

technical field [0001] The invention relates to the technical field of atmospheric environment monitoring, in particular to a method for retrieving aerosol components by using a laser radar ratio and a depolarization ratio. Background technique [0002] The lidar ratio (S) is the ratio of the extinction coefficient to the backscatter coefficient, and the calculation formula is: S i = σ i / β i (1) where i represents different aerosol components; σ i Represents the extinction coefficient of different components; β i Represents the backscattering coefficients of the different components. It is an important parameter by which aerosol components can be distinguished. For different types of aerosols, the lidar ratios vary greatly. Previous studies have shown that the lidar ratio for dust particles from Asia or the Sahara is about 50sr (Burton et al., 2012; Murayama et al., 2004). The variation in the LiDAR ratio for pure dust particles is mainly attributed to the differenc...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to view more

Application Information

Patent Timeline
no application Login to view more
Patent Type & Authority Applications(China)
IPC IPC(8): G01S7/48G01N15/00
CPCG01S7/4802G01N15/00G01N33/0062G01S7/499G01S17/95Y02A90/10G01N15/1429G01N15/1434G01S17/88
Inventor 杨婷王自发王海波
Owner INST OF ATMOSPHERIC PHYSICS CHINESE ACADEMY SCI
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Try Eureka
PatSnap group products

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic.

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap