China successfully launched high score five satellite to detect air pollutants

category:Society
 China successfully launched high score five satellite to detect air pollutants


Hyperspectral remote sensing is the frontier of remote sensing technology. The different elements and their compounds on the earth have their own unique spectral characteristics, so the spectrum is regarded as the fingerprint of the substance, and it is an important identity card to identify and analyze the characteristics of different objects. High score five is the first hyperspectral satellite in the world to realize comprehensive observation of the atmosphere and land. It is also the highest spectral resolution satellite in our country. It has a designed life of 8 years, loading 2 newly developed land observation loads and 4 newly developed atmospheric observation loads. These 6 loads of artifact made the high score five satellite practice the eye piercing eye. The high score five satellite is different from the previously launched high score one, two, and four satellites. The optical imaging can only see the shape, size and other information of the material. The spectral imaging technology of the high score five satellite can combine the spectrum with the image as a whole and detect the specific components of the material. The high score five satellite will fill the blank of the air polluted gas in the region, which can dynamically reflect the air pollution in China by monitoring the physical factors such as air pollution, greenhouse gas and aerosol. At the same time, high score five satellite can also detect inland water, land surface ecological environment, altered minerals and rock and mineral categories, and provide high quality and high reliable hyperspectral data for the industry of environmental monitoring, resource exploration, disaster prevention and disaster reduction in China. The high score five satellite has wide spectral range and high spectral resolution, and can realize hyperspectral observation from ultraviolet to long wavelength infrared spectrum. It can be seen that the spectral resolution of the visible spectrum of the shortwave infrared hyperspectral camera is 5 nm, which is equivalent to 1/10000 of the thickness of the paper. The method of satellite detection is rich, with high spectral / multispectral imaging observation, multi angle observation and so on. It is the most popular optical remote sensing satellite in China. The working mode is up to 26 kinds. In addition, the calibration accuracy of the star is high, and the spectral calibration accuracy of the satellite is 0.008 wave number. As a ruler needs to be calibrated correctly, the high precision calibration is the basis of the quantitative application of the hyperspectral satellite and an important guarantee for the accurate and undistorted information of the satellite detection information.