A Long March-2C rocket carrying the environment-monitoring satellite Huanjing-1C blasts off from the Taiyuan Satellite Launch Center in Taiyuan, capital of North China's Shanxi province, on Nov 19, 2012. The satellite will be used to monitor environmental situations and help to reduce the effects of natural disasters. [Photo/Xinhua]

TAIYUAN - China on Monday sent the third satellite in its "Environment I" family into the sky, sharpening its abilities in environmental monitoring and disaster forecasting.

The launch marks the completion of a plan initiated by China in 2003 to create a small environmental monitoring satellite constellation, according to North China's Taiyuan Satellite Launch Center.

The radar satellite will join the other two operating optical satellites "Environment I" satellites, which were launched in September 2008, to form a network covering most of China's territory.

This "2+1" formula will help provide scientific evidence for assessing natural disaster situations, emergency aid and reconstruction as well as enable China to monitor and forecast ecological changes, pollution and natural disasters around the clock, the center said.

The satellite was carried by a Long March-2C rocket.

The rocket also carried two additional satellites designed to run tests and carry out in-orbit experiments for new-type aerospace equipment, materials, methods and miniature satellite platforms.