The world's first geostationary orbit atmospheric

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The world's first geostationary orbit atmospheric hyperspectral map was officially unveiled

at the end of last year, China successfully launched the fengyun-4 satellite with the long march 3B carrier rocket at the Xichang Satellite Launch Center. On February 27, the State Administration of science, technology and industry for national defense jointly released the first batch of images and data obtained from fengyun-4 a satellite on the long right section of the fracture specimen from a scribe line adjacent to the fracture. The world's first geostationary orbit atmospheric hyperspectral map was officially unveiled. At the same time, China obtained color satellite cloud images and lightning distribution maps for the first time

this release includes images obtained by multi-channel scanning imaging radiometer, atmospheric infrared radiation spectrum obtained by interferometric atmospheric vertical detector, lightning distribution and intensity information obtained by lightning imager, spatial effect and particle detection information obtained by space environment monitor, etc

the world's first geostationary orbit atmospheric hyperspectral map was obtained by the interferometric atmospheric vertical detector first carried on satellite 4A with all switches of Fengyun turned off. It marks the transition from two-dimensional to three-dimensional atmospheric observation in geostationary orbit

fengyun-4 produced a color satellite cloud image for the first time, and a regional observation image can be generated as soon as one minute. Lakes on the Qinghai Tibet Plateau, cellular clouds in the Yellow Sea, Siberian snow, tropical convection near the equator, etc. are clearly visible. Xu Jianmin, an academician of the Chinese Academy of engineering, commented that "the cloud structure and ground features are rich in layers and clear in texture"

fengyun-4 a satellite is the first satellite in China to span from the first generation (Fengyun-2) to the second generation by adopting the composite stacking of axial cloth, C cloth and massive foam sandwich geostationary orbit meteorological satellite. It was launched on December 11, 2016. The interferometric atmospheric vertical detector carried on the satellite has filled the blank of observation in this field in the world, and the lightning imager has filled the blank of observation in this field in China

Tian Yulong, chief engineer of the Bureau of science, technology and industry for national defense, introduced that compared with China's first generation meteorological satellite observation system, the time resolution of fengyun-4a satellite observation was doubled, the spatial resolution was increased by 6 times, the observation ability of atmospheric temperature and humidity was increased by thousands of times, and the whole satellite observation 1. The amount of tensile property data of high molecular polymers was increased by 160 times, the number of observation products was increased by 3 times, and the comprehensive detection ability reached the international leading level

Yang Jun, director of the National Satellite Meteorological Center, said that fengyun-4a satellite has been included in the global earth observation meteorological satellite sequence by the World Meteorological Organization. The satellite is expected to carry out weather forecast trials in the summer flood season this year, and has the ability of trial operation by the end of the year

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