国产热热热精品,亚洲视频久久】日韩,三级婷婷在线久久,99人妻精品视频,精品九热人人肉肉在线,AV东京热一区二区,91po在线视频观看,久久激情宗合,青青草黄色手机视频

China / Society

High-res satellite to help monitor floods, pollution

By Zhao Lei (China Daily) Updated: 2016-06-14 07:49

The Gaofen 4 high-resolution Earth observation satellite officially started operating on Monday to facilitate disaster relief and environmental pollution control.

Zheng Guoguang, head of the China Meteorological Administration, said Gaofen 4 is at least 10 times more efficient than the Fengyun satellites, which are pillars of the nation's space-based weather observation system. He said the strong capability of Gaofen 4 will substantially improve the administration's detection and response to extreme weather such as typhoons and rainstorms.

"We will use it to monitor floods and rainstorms in the south. It will also be used to forecast the weather during the G20 Summit in Hangzhou in September," Zheng said.

High-res satellite to help monitor floods, pollution

Xu Dazhe, director of the China National Space Administration, which oversees the Gaofen project, said that during its test in orbit over the past six months, Gaofen 4 monitored several disasters and helped environmental protection authorities detect smog as well as sources of air pollutants.

The satellite will play a big role in water quality control, air pollution measurement, forest fire detection and disaster early-warning, he added.

The 5-metric ton Gaofen 4 was sent skyward atop a Long March 3B rocket from the Xichang Satellite Launch Center in Sichuan province on Dec 29. Seven days later, it entered a geosynchronous orbit at 36,000 km above the ground and began to carry out a six-month in-orbit test.

It has a design lifespan of eight years, the longest of China's Earth observation satellites.

It is able to cover China and the whole of Southeast Asia and can shift to multiple targets. Each of the satellite's images can cover a 160,000-square-km region, equivalent to the area of Henan province.

China launched the Gaofen project in May 2010. The first in the series, Gaofen 1, was sent into space in April 2013. Another three Gaofen satellites were launched in 2014 and 2015.

So far, images and data generated by Gaofen satellites have helped around 1,800 government departments, institutes and companies in 18 sectors, and 26 provincial-level regions have set up a Gaofen data applications center, the China National Space Administration said.

Highlights
Hot Topics

...
开化县| 江孜县| 博乐市| 湾仔区| 屏东市| 绥德县| 若尔盖县| 措美县| 资阳市| 江津市| 连城县| 营口市| 延安市| 隆回县| 泗阳县| 和田市| 荆门市| 包头市| 万山特区| 淅川县| 孟连| 津市市| 阿克| 衡南县| 汾西县| 芦山县| 陈巴尔虎旗| 石渠县| 北宁市| 惠来县| 门头沟区| 遂平县| 错那县| 香河县| 肥城市| 麟游县| 怀来县| 五莲县| 巴塘县| 耿马| 长治市|