Aerosol optical thickness inversion method based on remote sensing data

A technology of optical thickness and remote sensing data, applied in scientific instruments, measuring devices, suspension and porous material analysis, etc., can solve problems such as difficult to use, difficult to obtain data, missing data, etc., to facilitate prevention and management, and improve correlation , good effect

Inactive Publication Date: 2018-12-18
CENTRAL SOUTH UNIVERSITY OF FORESTRY AND TECHNOLOGY
View PDF5 Cites 25 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

At present, these two types of products have various deficiencies, such as NASA's products have low spatial resolution and missing data; the data released by my country's National Meteorological Satellite Center is difficult to obtain, and due to data format problems, it is also difficult to use

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
  • Aerosol optical thickness inversion method based on remote sensing data
  • Aerosol optical thickness inversion method based on remote sensing data
  • Aerosol optical thickness inversion method based on remote sensing data

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0028] The invention uses the dark pixel method based on MODIS data to invert the aerosol optical thickness in order to obtain products with higher resolution and serve related research.

[0029] When the land surface is a uniform Lambertian surface and the atmosphere changes uniformly vertically, the satellite measurement can be expressed by the apparent reflectance. When the surface reflectance is small, the satellite observation reflectance mainly depends on the atmospheric contribution. When the surface reflectance is large, the contribution of the surface becomes the main contribution term. In this way, the basis of the inversion can be obtained: if the surface reflectance is known, the aerosol optical depth can be obtained by determining the atmospheric aerosol model.

[0030] dark pixel method

[0031] Different surface objects have different reflectivity. Therefore, it is very difficult to separate the path radiation item from the radiation value of the remote sensin...

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 an aerosol optical thickness inversion method based on remote sensing data. The aerosol optical thickness inversion is conducted by the dark-object method and a 6S radiation transfer model. The aerosol optical thickness inversion method comprises data acquisition, data synthesis, angle data synthesis, cloud detection, aerosol inversion, aerosol type determination, surfacereflectivity determination, distribution map production based on AOD of the inversion, and relationship between AOD and PM2.5 establishment. MODIS AOD data obtained based on the method can be used asan effective supplementary means for ground monitoring of PM2.5 concentration.

Description

technical field [0001] The invention relates to an aerosol optical depth inversion method based on remote sensing data. Background technique [0002] With the development of society, the harm of haze to the environment and human health has attracted more and more attention, and the prevention and control of haze and related research have become more and more urgent. Forests play a vital role in the virtuous cycle of the atmosphere. The branches and leaves of the trees in the forest can reduce the wind speed, help the dust in the air to settle, and can absorb the small dust particles in the air. In addition, forest vegetation can intercept, absorb, and retain PM2.5, and forests can reduce the harm of haze to human beings to a certain extent. Remote sensing technology can monitor forest vegetation and haze on a large scale. Therefore, using remote sensing data to explore the response of forest vegetation to haze and to clarify the quantitative and qualitative relationship be...

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): G01N15/06
CPCG01N15/06G01N2015/0693
Inventor 杨志高张贵龚奕霖王赛专
Owner CENTRAL SOUTH UNIVERSITY OF FORESTRY AND TECHNOLOGY
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