Segmental statistics-based atmospheric aerosol inversion method

A technology of atmospheric aerosol and segmental statistics, applied in the field of remote sensing information, can solve the problem of only applicable

Pending Publication Date: 2019-09-20
UNIV OF ELECTRONICS SCI & TECH OF CHINA
View PDF3 Cites 4 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, most of the current inversion algorithms are aimed at aerosols with large-scale average properties, and have many limitations, for example, they are only applicable to the dark surface
At present, there is no effective aerosol retrieval algorithm suitable for bright surface areas such as cities

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
  • Segmental statistics-based atmospheric aerosol inversion method
  • Segmental statistics-based atmospheric aerosol inversion method
  • Segmental statistics-based atmospheric aerosol inversion method

Examples

Experimental program
Comparison scheme
Effect test

Embodiment

[0052] figure 1 It is a specific implementation flow chart of the atmospheric aerosol inversion method based on segmental statistics in the present invention. Such as figure 1 Shown, the atmospheric aerosol retrieval method based on subsection statistics of the present invention comprises the following steps:

[0053] S101: Obtain multi-band remote sensing images:

[0054] Obtain multi-band remote sensing images of the analyzed area through satellites, and perform radiometric calibration to obtain multi-band remote sensing images with apparent reflectance. The multi-band remote sensing images include mid-infrared 1.6 micron band and mid-infrared 2.1 micron band. Select a band from the remote sensing image as the inversion band.

[0055] At present, the satellite that acquires multi-band remote sensing images is LANDSAT satellite. In the LANDSAT 8OLI image, it contains 9 bands, namely Band1 ocean blue band, Band2 blue-green band, Band3 green band, Band4 red band, Band5 near-...

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 segmented statistics-based atmospheric aerosol inversion method and belongs to the technical field of remote sensing information. According to the method of the invention, an aerosol optical thickness lookup table corresponding to multi-waveband remote sensing images and inversion wave bands is obtained; pixels are classified and screened according to the apparent reflectance interval of a mid-infrared 2.1 micron waveband; and an obtained pixel set is further classified and screened according to the apparent reflectance interval of a mid-infrared 1.6 micron waveband, and a finally obtained pixel set is classified into two types according to the number of pixels, a pixel type having more pixels is classified as a type A, and the other type is classified as a type B; and inversion is carried out with the pixel type having more pixels adopted as a reference part, inversion is carried out with the surface reflectance of a clean section adopted as the surface reflectance of the whole pixel set, so that an aerosol thickness value is obtained, and inversion is performed on the other type with the pixels adopted as reference. Compared with a traditional dark pixel algorithm, the method has a good inversion effect for bright surface areas. The method has a wider application range.

Description

technical field [0001] The invention belongs to the technical field of remote sensing information, and more specifically relates to an atmospheric aerosol inversion method based on segmentation statistics. Background technique [0002] Atmospheric aerosol refers to the multiphase system composed of the atmosphere and the solid and liquid particles suspended in it. It refers to the particles suspended in the earth's atmosphere with certain stability and low sedimentation velocity, and the scale ranges from microns to tens of microns. A mixture of molecular clusters, liquid or solid particles. Aerosol particles mainly come from man-made sources such as industrial activities and biological combustion, as well as natural sources such as dust and offshore marine particles. [0003] Studies have shown that atmospheric aerosols not only affect the radiation balance of the earth's surface system, but also adjust the reflectivity of the earth-atmosphere system through the scattering...

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): G01S17/95
CPCG01S17/95G01N2021/1793G01N21/55G01N2021/3531G01N2201/0214G01V8/02G01N21/85G01V3/16G01N21/3504G01N21/94
Inventor 陈云坪杨玥陈彦
Owner UNIV OF ELECTRONICS SCI & TECH OF CHINA
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