China launches marine satellite to study climate change
The satellite HY-1C will monitor ocean colour and water temperatures, providing basic data for research on the global oceanic environment, according to the State Administration of Science, Technology and Industry for National Defense.science Updated: Sep 07, 2018 17:20 IST
China successfully launched a new marine satellite into orbit on Friday to better monitor its maritime waters and study the impact of climate change.
A Long March-2C rocket carrying the HY-1C satellite took off at 11.15 am from the Taiyuan Satellite Launch Centre in north China’s Shanxi Province.
The satellite HY-1C will monitor ocean colour and water temperatures, providing basic data for research on the global oceanic environment, according to the State Administration of Science, Technology and Industry for National Defense.
Its data will also be used in the survey of the resources and environment of China’s offshore waters, islands and coastal zones, marine disaster relief and the sustainable utilisation of ocean resources, said the administration.
With a design life of five years, the satellite was developed by the China Spacesat Co, Ltd. under the China Academy of Space Technology, state-run Xinhua news agency reported.
China launched its first marine satellite, HY-1A, in May, 2002, laying the foundation for an ocean monitoring system. Then the HY-1B satellite was launched in April, 2007.
HY-1C and HY-1D, which is planned to be launched in 2019, are expected to improve China’s ocean remote sensing capability, the agency said.
HY-1C can detect chlorophyll and suspended sediment concentrations and dissolved organic matter, which can affect ocean colour, as well as temperatures on the sea surface, Wang Lili, chief designer of the satellite said.
The data will help survey fishery and aquaculture resources and environments, offering a scientific basis for reasonable exploitation and utilisation of marine resources, experts said.
Scientists will also use the data to study global environmental changes, the role of the oceans in the global carbon cycle and the El-Nino phenomenon.
The satellite carries an imager to probe suspended sediment in estuaries and harbours in coastal zones, and to forecast and monitor marine environmental disasters, Wang said.
It is equipped with an automatic identification and monitoring system for ships, which will help safeguard maritime rights and interests, and provide data for disaster prevention and mitigation and fishery production, Wang said.
The satellite will save time, manpower and materials in conducting integrated marine surveys, compared with traditional investigation methods on ships.
It could improve China’s ability to predict, monitor and evaluate maritime risks such as storm surges, red tides, sea ice and huge waves, and help save lives and property. It can also rapidly get information about the fishery environment and make the oceanic fishery industry more efficient.
The successful launch will help end the long-term shortage of continuous data on ocean colour, and promote research on global ocean circulation and changes in the sea surface.
Friday’s launch was the 284th by the Long March rocket series.
First Published: Sep 07, 2018 17:19 IST