China's marine resource survey ship Da Yang Hao at sea. (Photo: cctv.com)
It was built in August 2017 by the Huangpu Wenchong Shipbuilding Company, part of the China State Shipbuilding Corporation. It is the first domestically designed and built 4,000-ton marine resource survey ship.
The 98.5-meter-long, 17-meter-wide vessel has a maximum speed of 16.34 knots. It can carry out environmental survey missions in almost all of the world's ocean areas.
The Da Yang Hao is equipped with a remote-controlled submersible that can dive as far as 4,000 meters below the surface, and an autonomous submersible that can dive as far as 6,000 meters. The ship also has many other cutting-edge technologies, such as towed deep-sea sensors and a satellite remote sensing system.
The ship was designed to cope with stronger storms than previous ships, and also to consume less energy and generate less noise.