Looking for breakthrough ideas for innovation challenges? Try Patsnap Eureka!

Method and system for band conversion of atmospheric extinction coefficient in mild haze

A technology of atmospheric extinction coefficient and extinction coefficient, which is applied in the field of atmospheric optics, can solve the problem that the atmospheric extinction coefficient cannot be obtained directly, and achieve the effect of reducing errors

Active Publication Date: 2020-07-03
BEIJING INST OF ENVIRONMENTAL FEATURES
View PDF6 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

But the problem is that the atmospheric extinction coefficient obtained at this time is related to the wavelength of the lidar, and the atmospheric extinction coefficient of other bands cannot be obtained directly.

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 and system for band conversion of atmospheric extinction coefficient in mild haze
  • Method and system for band conversion of atmospheric extinction coefficient in mild haze
  • Method and system for band conversion of atmospheric extinction coefficient in mild haze

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0030] In order to make the purpose, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments It is a part of embodiments of the present invention, but not all embodiments. 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.

[0031] The invention proposes a band conversion method of the atmospheric extinction coefficient during mild haze, and the method realizes calculation of atmospheric extinction at other wavelengths except the emission wavelength of the laser radar through the measurement data of the laser radar and the sun photometer.

[0032] see figure 1 ,...

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 relates to a band conversion method and system for an atmospheric extinction coefficient in the mild haze. The method comprises steps that aerosol optical property measurement is carriedout through employing a laser radar and a solar photometer, and laser radar data and solar photometer data are acquired; the optical atmosphere thickness is acquired through inversion based on the solar photometer data, aerosol particle spectrum distribution of the lower atmosphere is acquired through inversion by employing the extinction method, and an extinction coefficient when the wavelengthmatches the emission laser wavelength of the laser radar is calculated; the extinction coefficient corresponding to the lower atmosphere is calculated according to the laser radar data; the extinctioncoefficient calculated based on the solar photometer data is compared with the extinction coefficient calculated based on the laser radar data, if yes, the extinction coefficient of each wavelength is calculated based on aerosol particle spectral distribution of the lower atmosphere, and band conversion for the extinction coefficient is realized. The method is advantaged in that in combination with the measurement data of the laser radar and the solar photometer, band conversion for the extinction coefficient is realized, and error reduction is realized through data comparison.

Description

technical field [0001] The invention relates to the technical field of atmospheric optics, in particular to a method and system for converting the bands of atmospheric extinction coefficients during mild haze. Background technique [0002] Smog is a common weather phenomenon. It is caused by the fact that the total amount of particulate matter and nitrogen oxides contained in the air exceeds the normal level, resulting in cloudy air and reduced visibility. The impact of smog on the atmosphere is directly related to the distribution of its aerosol particles. For haze weather, both the concentration of small particles and the concentration of large particles in the air are much larger than normal weather. Compared with foggy days, the concentration of small aerosol particles in haze days is greater than that in foggy days, and the concentration of large aerosol particles in haze days is much smaller than that in foggy days. [0003] The atmospheric extinction coefficient can...

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 Patents(China)
IPC IPC(8): G01S17/95G01J1/42G16C20/70
CPCG01N21/31G01S17/95G16C20/70Y02A90/10
Inventor 刘兴润李霞朱希娟刘浩
Owner BEIJING INST OF ENVIRONMENTAL FEATURES
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Patsnap Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Patsnap Eureka Blog
Learn More
PatSnap group products

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

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap|About US| Contact US: help@patsnap.com