Super laser pointer for space exploration
Members according to Wentao Huang, a researcher with the Chinese Antarctic Survey Team at Zhongshan Station and the 35 Polar Research Center of China, will install and debug the sodium fluorescence in the Zhongshan Station Doppler lidar system during the summer of the 35 team, and then make observations in the winter. As an active optical remote sensing device, lidar has the advantages of high temporal and spatial resolution and high detection accuracy. It works by sending Laser pointer high up into the air to interact with atmospheric matter, and optical telescopes pick up scattered light signals to make further measurements of the atmosphere. Temperature and wind field (including wind speed, direction, etc.) data.
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In order to explore the mystery of the endless changes in the atmosphere, in 2012, the national Natural Science Foundation of China's first national major scientific research instrument and equipment development project -- multi-band multi-atmospheric Components active and Passive Integrated Detection System (APSOS) was launched. At night, a green and yellow laser is shot into the sky like a super "laser pointer" to explore the space-time variation of greenhouse gases and pollution gases in the atmosphere. Lasers are fired to precisely "slice" the neutral atmosphere. The earth is surrounded by a thick layer of atmosphere. The atmosphere is divided into troposphere (10 ~ 20 km above the ground), stratosphere (20 ~ 50 km above the ground), and middle layer (50 ~ 85 km above the ground). Above this is the thermosphere (upper boundary). About 800 km) and escape layers. The atmosphere of the thermosphere is illuminated by the sun, and the temperature is high. The gas molecules or atoms are greatly ionized and can conduct electricity, so it is also called the ionosphere.
2021-09-30 07:40:39
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