Chinese scientists have made a three-dimensional, digital topographic map of the Antarctic seabed using data collected during a recent expedition.
The map was presented at a press briefing yesterday in the city of Guangzhou during an event to mark the completion of a four-month expedition by the research vessel "Hai Yang Liu Hao" (Ocean Six), state-run Xinhua news agency said today.
The map was made on the expedition in Antarctica using multi-beam sonar.
The vessel emitted multiple pulses of sound that scanned an area measuring 250 kilometers long, 80 kilometers wide, with a maximum depth of 3,500 meters, said He Gaowen, a senior scientist with Guangzhou Marine Geological Survey Bureau.
The maps have proved invaluable tools across geological surveys and marine mineral exploitation, saidDing Weifeng, an Earth exploration scientist at a research institute under State Oceanic Administration.
The mapping of the Antarctic seabed will also provide a large amount of information for polar scientific research, Ding said.
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