Five tons of soil would fill a small dump truck; if spread over an acre, it would make a layer slightly less than the thickness of a dime.

五吨的土会装满一辆小型自卸式卡车；若铺开在一英亩的土地上，它会形成不足一角硬币厚度的土层。

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But the real value of the project will be the ability to map changes in the thickness of the sea ice over time, as further maps are produced.

但是该项目的真正价值是，随着更多地图的出炉，可以绘制海冰厚度随时间变化的地图。

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Five tons of soil would fill a small dump truck; spread over an acre it would make a layer slightly less than the thickness of a dime, Mr. Cruse said.

5吨的土会装满一辆小型自卸式卡车；把这车土倾洒在一英亩土地上会形成不足一角硬币厚度的土层，克鲁斯先生说。

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By flying transects over the ice, a picture of its thickness emerges.

BBC: Arctic ice melting at 'amazing' speed, scientists find

With 102 holes drilled so far, hundreds of measurements have been made of ice thickness and snow cover over the 243km covered to date.

BBC: Arctic team: 'London, we have a problem'

Calabresi says his next step will be to look at changes in the fiber layer thickness in 100 patients over a period of three years.

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