Not long ago, China's fifth Antarctic scientific research station - the Ross Sea Station -officially had its foundation stone laid on Inexpressible Island (74°54'S 163°39'E). The construction will take another four years to complete while the preparation and research had already begun a few years ago. During November 2017, four unmanned surface vessels (USVs) from Oceanalpha Co., Ltd. teamed up with the Snow Dragon Antarctica expedition ship all the way south to the Ross Sea to assist the project. The USVs worked for nearly 40 hours, completing a multibeam full-cover seabed topographic survey of 5 square kilometres. This not only fills the data gap in the region but also provides spatial geographic data support for marine navigation and the construction of the new station.
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