日韩精品久久一区二区三区_亚洲色图p_亚洲综合在线最大成人_国产中出在线观看_日韩免费_亚洲综合在线一区

USEUROPEAFRICAASIA 中文雙語Fran?ais
China
Home / China / Innovation

New eyeball in space peers toward Earth

By Zhao Lei | China Daily | Updated: 2017-09-26 07:23

New eyeball in space peers toward Earth

WeChat composite images: A photo of Earth taken by the crew of NASA's Apollo 17 spacecraft in 1972(left) will be replaced for three days by a photo taken by China's Fengyun 4A satellite. Both Earth images were combined with a human figure for the instant messaging app's logon page. [Photo provided to China Daily]

Weather forecasting, disaster relief will be improved with technology

China's most advanced weather satellite officially began operating 36,000 kilometers above the earth on Monday, greatly improving the country's capabilities in weather forecasting, environmental monitoring and disaster prevention and relief. It is also expected to help China's response to climate change.

The 5.4-metric-ton Fengyun 4A, developed by the Shanghai Academy of Spaceflight Technology, lifted off on Dec 11 atop a Long March 3B carrier rocket from the Xichang Satellite Launch Center in Sichuan province.

During its shakedown period, the satellite performed well and generated good-quality images and data, according to a news release from the State Administration of Science, Technology and Industry for National Defense, which oversees the satellite project.

It said the Fengyun 4A can be used to detect and monitor typhoons, sandstorms, rainstorms and smog.

Engineers from the China Meteorological Administration took control of the satellite on Monday. It is expected to be in service for more than six years.

The Fengyun 4A is the country's latest geosynchronous meteorological satellite series and will gradually replace the Fengyun 2 generation. It will monitor the atmosphere, clouds and the space environment above China and the entire Western Pacific and Indian oceans, according to the administration.

Dong Yaohai, chief designer of the satellite at the Shanghai Academy of Spaceflight Technology, said it has four instrument groups-an advanced geosynchronous radiation imager, a geostationary interferometric infrared sounder, a lightning mapping imager and a space environment package.

He said the Fengyun 4A can calculate the density of PM10 and PM2.5-particulate matter that is harmful to human health-and is so sensitive that it can detect a temperature change of 0.1 C on the ground.

Zhao Jian, a key official overseeing the project, said China plans to launch the Fengyun 4B in 2018 and Fengyun 4C in 2020.

China launched its first weather satellite, Fengyun 1A, in 1988. Currently, the country maintains eight weather satellites-the Fengyun 4A (the newest), plus four Fengyun 2 series and three Fengyun 3 series satellites, according to the administration.

WeChat, the most popular instant messaging application in China, replaced its composite logon picture-which uses an image of Earth taken in 1972 by the crew of NASA's Apollo 17 spacecraft-on Monday. It will use an image recently taken by the Fengyun 4A satellite until Thursday.

Zheng Jinran contributed to this story.

Editor's picks
Copyright 1995 - . All rights reserved. The content (including but not limited to text, photo, multimedia information, etc) published in this site belongs to China Daily Information Co (CDIC). Without written authorization from CDIC, such content shall not be republished or used in any form. Note: Browsers with 1024*768 or higher resolution are suggested for this site.
License for publishing multimedia online 0108263

Registration Number: 130349
FOLLOW US
 
主站蜘蛛池模板: 免费在线黄色片 | 秋霞影院精品久久久久 | 福利在线免费 | 日韩欧美精品在线 | 免费v片 | 欧美日韩亚洲高清不卡一区二区三区 | 午夜免费电影网 | 日韩精品第一页 | 久久夜色精品国产亚洲 | 久久久精品在线观看 | 日韩一区中文字幕 | 天天鲁天天爽天天视频 | 色婷婷激情| 全黄裸片武则天一级第4季 亚洲一区国产 | 奇米狠狠色 | 91偷拍精品一区二区三区 | 国产11一12周岁女毛片 | 欧美成年网站 | 成人久久久 | 亚洲成人精品久久 | 天天拍天天色 | 久久精品国产一区二区电影 | 99riav视频一区二区 | 污网站在线免费看 | 牛牛精品国内免费一区 | 夜色视频网 | 国产免费网址 | 亚洲香蕉久久一区二区三区四区 | 欧美电影大全 | 亚洲国产一二三 | 欧美视频精品 | 亚洲六月丁香色婷婷综合久久 | 不卡一区在线观看 | 日韩高清一区二区 | 日韩成人免费视频 | 香蕉视频免费网站 | 免费国产一区 | 看片国产 | 自偷自拍三级全三级视频 | 久久这里只有精品免费看青草 | 亚洲欧美日韩精品久久奇米色影视 |