China News Service, Shanghai, February 20th, Question: What is the "international performance" of China's Fengyun Satellite in helping the Winter Olympics meteorological guarantee?

　　Reporter Zheng Yingying

　　If there is a weather satellite observation competition in the Beijing Winter Olympics, then China's "Fengyun Satellite Family" should have a place on the medal list.

　　At the Beijing Winter Olympics, Fengyun-4 A and B satellites monitored the clouds in the atmosphere in real time; Fengyun-3 D monitored the surface temperature and snow to help ensure the weather of the event.

　　The meteorological capabilities of the "Fengyun Satellite Family" should not be underestimated. In fact, in the international meteorological satellite "development arena", the "Fengyun Satellite Family" is also a powerful player who can win medals.

Over 50 years, two generations of four types and 19 "Fengyun stars"

　　China is one of the few countries in the world that has both polar-orbiting and geostationary-orbiting meteorological satellites.

　　After more than 50 years of development, China Aerospace has completed the launch of 19 Fengyun meteorological satellites of two generations and four types, realizing the historical leap of China's meteorological satellite business from scratch, from small to large, and from weak to strong.

　　Chen Xiaojie, Product Assurance Manager of Fengyun No. 4 Satellite of the Eighth Academy of China Aerospace Science and Technology Corporation and Director of the First Office of the General Department of Meteorological and Environmental Satellites, said in an exclusive interview with a reporter from Chinanews.com that from the configuration of high and low orbits, some Fengyun satellites have technological breakthroughs, etc. In terms of aspects, the comprehensive strength of China's "Fengyun Satellite Family" currently takes the lead in the world.

　　According to the division of operating orbits, the currently launched meteorological satellites can be divided into two series: polar-orbiting meteorological satellites orbiting the two poles of the earth and geostationary-orbiting meteorological satellites that do not move relative to the earth.

In China's "Fengyun satellite family", Fengyun-1 and Fengyun-3 belong to polar-orbiting meteorological satellites, which can obtain global observation data and are "patrolmen" for global monitoring; Fengyun-2 and Fengyun-4 belong to geostationary orbit meteorological satellites Satellites, stationary relative to the earth, can obtain continuous dynamic observation data of China and surrounding areas, and are "sentinels" who stick to their posts.

The development scene of Fengyun-4B star, data map courtesy of the Eighth Academy of China Aerospace Science and Technology Corporation

There will be some international "gold medal" meteorological satellites emerging

　　In addition to taking the lead in comprehensive strength, China's "Fengyun Satellite Family" has also won some individual "gold and silver medals" internationally.

　　Chen Xiaojie informed that in 1988, after the successful launch of China's first polar-orbiting meteorological satellite, Fengyun-1A, China obtained the first satellite observation map from space.

In 1997, when China's first geostationary orbit meteorological satellite, Fengyun-2A satellite, was launched, China became one of the few countries in the world to have both polar-orbiting and geostationary-orbiting meteorological satellites. The "three-legged" trend.

　　In 2016, China successfully launched the Fengyun-4A satellite. Chen Xiaojie said that from the perspective of the development history of global meteorological satellites, this satellite is a milestone, and it has achieved the first infrared hyperspectral atmospheric detection in geostationary orbit in the world.

This satellite is also China's first three-axis stable geostationary orbit quantitative remote sensing satellite. So far, only a few countries such as the United States have launched similar satellites. And run, lead."

　　Then, in 2018, China launched the Fengyun-2 H star. At the request of the World Meteorological Organization and the Asia-Pacific Space Cooperation Organization, the fixed position of the Fengyun-2 H star was changed from the original 86.5 degrees east longitude to 79 degrees east longitude, effectively covering the "Belt and Road" Countries and regions along the "One Belt, One Road", the Indian Ocean and most African countries have become veritable "One Belt One Road Stars", contributing "Chinese wisdom" to countries and regions along the "One Belt One Road".

　　In 2021, China will launch the world's first civil dawn orbit meteorological satellite, the Fengyun-3E satellite, filling the gap of satellite observation data in the 6-hour assimilation window of global numerical weather forecasting, making China the first in the world to achieve "dawn orbit, morning satellite" Orbit, Afternoon Orbit" countries where Samsung's network operates.

The third-generation weather satellite of the future planning bureau is under demonstration

　　In the future, Fengyun Satellite will further improve the detection elements, sensitivity and absolute accuracy of Earth's atmospheric observations.

　　China has started the demonstration of the demand for the third-generation meteorological satellites. It is expected that by 2035, China's new-generation meteorological satellite series will fully replace and expand the currently in-service Fengyun-3 and Fengyun-4 meteorological satellites to meet regional and global meteorological disasters. The rapid and precise monitoring needs and multi-scale accurate weather forecasting and forecasting needs.

　　In an exclusive interview with a reporter from Chinanews.com, Chen Xiaofei, the chief designer of the Fengyun-3 satellite of the Eighth Academy of China Aerospace Science and Technology Corporation, revealed that on the one hand, the development team is developing the follow-up 06, 07 and 08 stars of Fengyun-3, and is also demonstrating the first Three generations of low-orbit meteorological satellites (FY-5), among which the FY-3 06, 07, and 08 satellites under development are expected to be ready for delivery this year and next.

　　He further introduced that the Fengyun-3 06 and 08 stars will replace the Fengyun-3 C and D stars that are "working" in space in the future; and the Fengyun-3 07 star is a special satellite, the first in China for Precipitation monitoring satellites will provide information on the three-dimensional structure of precipitation in the middle and low latitudes of the world, and are vividly called "precipitation stars".

　　"After the above-mentioned satellites are launched, China will have sun-synchronous orbit meteorological satellites in dawn orbit, morning orbit, and afternoon orbit, as well as 'precipitation satellites' in low-inclination orbit, forming a relatively complete low-orbit meteorological satellite observation system, which will significantly Enhance the application value of Fengyun satellites in the global meteorological observation system." Chen Xiaofei said.

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