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Satellites equipped with remote sensing instruments to defend the blue sky have a contribution to the instruments

 Last Update: 2021-09-20
 Source: Internet
 Author: User

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[ Focus on Chemical Machinery and Equipment Network ] The four high-spectral resolution payloads developed by the Hefei Institute of Material Science of the Chinese Academy of Sciences enter the predetermined orbit with the satellite, which will provide domestically-made hyperspectral data guarantee for China's atmospheric environmental monitoring
.

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At 11:01 on September 7, China successfully launched a hyperspectral observation satellite using the Long March 4 Bingyao 40 carrier rocket at the Taiyuan Satellite Launch Center
.
It marks that China's hyperspectral observation capabilities in the field of atmospheric environment have been further improved, which will meet the urgent needs of China in comprehensive environmental monitoring and other aspects, and provide domestic hyperspectral data guarantee for the operational operation of global atmospheric environment remote sensing monitoring
.
According to reports, the satellite is equipped with a total of seven remote sensing instruments, four of which were developed by the Hefei Research Institute.
They are the main greenhouse gas monitor (GMI), the atmospheric trace gas differential absorption spectrometer (EMI), and the atmosphere Sol multi-angle polarization detector (DPC), high-precision polarization scanner (POSP)
.

detector

How does the instrument protect the blue sky?

　　After the greenhouse gas monitor and atmospheric trace gas differential absorption spectrometer are put into orbit, global greenhouse gas and pollutant gas monitoring will be carried out
.
Greenhouse gas monitors can detect carbon dioxide at 1 to 4 ppm and methane at 20 ppb, providing technical support for China's "carbon peak and carbon neutral" strategy
.
The hyperspectral greenhouse gas monitor can obtain information on the global concentration distribution and time changes of major greenhouse gases such as carbon dioxide, methane, and carbon monoxide, improve the quantitative estimation of surface greenhouse gas fluxes on the regional scale, analyze and monitor global carbon sources and carbon sinks.
Provide scientific monitoring data for greenhouse gas emission reduction
.

　　The atmospheric trace gas differential absorption spectrometer is equipped with 0.
5 nanometer ultraviolet hyperspectral detection means, which can achieve a single day coverage of the world, and realize the monitoring of pollutant gases such as nitrogen dioxide, sulfur dioxide, ozone and formaldehyde, serving China's "air pollution prevention" and "ozone" "Collaborative detection with PM2.
5" and other national strategies
.
Atmospheric aerosol multi-angle polarization sounder can realize global atmospheric aerosol and cloud optical and microphysical parameter detection, and provide effective data for global climate change research and high-precision atmospheric radiation correction of earth observation
.
The polarization scanner can cooperate with the atmospheric aerosol multi-angle polarization detector for PM2.
5 and haze monitoring, helping to win the "blue sky defense war"
.

　　The satellite is equipped with a total of seven remote sensing instruments, which have provided great help to protect the environment
.
In recent years, the earth's environment has continued to deteriorate, and remote sensing detection technology has contributed to protecting the earth
.

　　Remote sensing itself is a general term for long-distance detection technology.
This technology relies on the development of sensors .
Depending on the occasion, the medium used for detection can be electromagnetic waves, sound waves, infrared.
.
.
and one of their common points is non-contact
.
With the development of aerospace technology, artificial satellite technology has become more and more mature.
Today's remote sensing technology can use artificial earth satellites, aviation and other platforms to realize large-scale resource management and monitoring
.
After all, remote sensing technology can only serve the purpose of observation and monitoring, and the focus is still to need human means to protect the ecological environment
.
In the final analysis, instruments and technology are just tools, and how to use them depends on the people behind the equipment
.

sensor

　　Concluding remarks

　　In the future, the four payloads will operate synchronously on hyperspectral observation satellites, which is of great significance for the dynamic monitoring of China's air pollution status and the implementation of air pollution prevention and control tasks
.
In addition, at present, the Hefei Institute of Material Science of the Chinese Academy of Sciences also undertakes the development of multiple satellite payloads such as atmospheric environment monitoring satellites, which will make important contributions to the comprehensive management of China’s atmospheric environment and the achievement of carbon peak and carbon neutrality goals.
Technical support and guarantee
.

　　Original title: Satellites equipped with remote sensing instruments to defend the blue sky have a contribution to the instruments

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