Chinese research icebreaker Xuelong 2, or Snow Dragon 2, and supply vessel Tianhui successfully crossed through the belt of prevailing westerlies on November 28 after nearly four days of voyage en route to the Antarctic.
The prevailing belt of westerlies are areas 40 and 60 degrees south of the equator featuring year-round strong westerly winds and high waves, making it one of the most challenging passages for sailors.
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