There is about a metre of ice on the surface and the lowest temperature has been minus 35 degrees Centigrade but with the wind chill, it can go down to about minus 70-80c.

地表的冰厚度达到1米左右，最低温度为零下35摄氏度，但是因为有风寒，温度可降至零下70至80摄氏度左右。

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If the temperature dips below zero or the wind chill is below minus 20, hit the treadmill instead.

如果温度降到0度以下或者风寒指数达到负20，那么还是踩脚踏车吧。

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"It takes a wind chill temperature of around minus 15 degrees [F] where you start to see an increase in the incident of frostbite, " Castellani said.

卡斯特拉尼说，“在约华氏零下15度（摄氏零下26.111度）的风寒温度，你会看到冻疮病例的增加。”

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In the meantime, Weather Channel has used a simpler measure, called "feels like, " to express temperature in a temperature-like number, taking into account wind chill at low temperatures and humidity at high temperatures.

WSJ: In the Forecast: New Ways to Measure the Temperature

The wind chill today will slice us up - it's taking the temperature down to below -50C, so we have decided to take a day's rest to recharge our batteries and soothe the aches and pains.

BBC: Arctic diary: Explorers' ice quest