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Atmospheric Pollution Composition Retrieval Method Based on GF-5 Satellite UV-Vis Hyperspectral

A Gaofen-5, hyperspectral technology, applied in color/spectral property measurement, material analysis, material analysis by optical means, etc., can solve the problem that the inversion accuracy of spectral quality products is easy to be limited, and achieve continuous and effective observation Effect

Active Publication Date: 2021-07-02
UNIV OF SCI & TECH OF CHINA
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Problems solved by technology

However, due to complex space conditions such as cosmic ray radiation, oxygen atoms, and ultraviolet exposure, the spectral quality and product retrieval accuracy are often limited.

Method used

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  • Atmospheric Pollution Composition Retrieval Method Based on GF-5 Satellite UV-Vis Hyperspectral
  • Atmospheric Pollution Composition Retrieval Method Based on GF-5 Satellite UV-Vis Hyperspectral
  • Atmospheric Pollution Composition Retrieval Method Based on GF-5 Satellite UV-Vis Hyperspectral

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Embodiment Construction

[0020] 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 some of the embodiments of the present invention, not all of them. 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.

[0021] The embodiment of the present invention provides a method for inversion of air pollution components based on the ultraviolet-visible hyperspectral spectrum of Gaofen-5 satellite, such as figure 1 As shown, it mainly includes:

[0022] Step 1. Obtain the hyperspectral data sets of the ultraviolet and visible light channels of the GF-5 satellite, use the solar irradiance data to normalize the earth's radiance, and obtain the albedo spectrum of...

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Abstract

The invention discloses an air pollution composition inversion method based on the ultraviolet-visible hyperspectrum of the Gaofen-5 satellite. Through the inversion calculation of the ultraviolet-visible hyperspectrum of the Gaofen-5 satellite, the column concentration of the air pollution composition can be accurately obtained , so as to achieve continuous and effective observation of air pollution components in a wide range and for a long time. In addition, according to the characteristics and spectral characteristics of the GF-5 instrument, the secondary calibration of the spectrum under the condition of low spectral signal-to-noise ratio and poor stability can be realized, thereby improving the inversion accuracy.

Description

technical field [0001] The invention relates to the technical field of remote sensing monitoring of air quality, in particular to an air pollution component inversion method based on the high-visible ultraviolet-visible hyperspectral spectrum of the Gaofen-5 satellite. Background technique [0002] Accurate monitoring of air pollution is an important prerequisite for the control and treatment of pollution problems. The existing routine air pollution monitoring of the ecological environment department relies on ground-based chemical in-situ detection, ground-based optical remote sensing observation and other means, which cannot achieve continuous and effective observation in a large area for a long time. Satellite observations can usually achieve large-scale global observations, which have advantages that ground monitoring cannot match. However, due to complex space conditions such as cosmic ray radiation, oxygen atoms, and ultraviolet exposure, the spectral quality and prod...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G06F30/20G06F17/11G06F17/15G01N21/25G06F111/10
CPCG01N21/25G01N2021/1793G06F17/11G06F17/15G06F30/20G06F2111/10
Inventor 刘诚张成歆苏文静夏丛紫赵飞
Owner UNIV OF SCI & TECH OF CHINA
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