An ice penetrating radar is deployed from a string of four kayaks to survey a section of the Petermann glacier in Greenland.

一部冰透雷达安装在连成一串的四艘橡皮船上，用来考察格陵兰岛彼得曼冰川的一个截面。

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The new probe was built using improved electronics and batteries, and an extra radar altimeter, a device that will fire microwaves at the arctic and Antarctic ice to reveal its thickness.

新的探测器在建造时使用了改进的电子设备和电池组，并且添加了新的的雷达高度计，这是一种发射微波测定两极冰层厚度的装置。

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The satellite USES radar to measure its altitude above the ice sheet.

卫星用雷达测定卫星从冰层顶部算起的高度。

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Scientists would use radar to search for liquids under the ice.

VOA: special.2010.05.25

The flights will be conducted by a DC-8 outfitted as a special airborne laboratory with laser mapping instruments, ice-penetrating radar and gravity instruments.

CNN: NASA flights will study Antarctic ice changes

Unlike rock, ice is transparent to radar.

BBC: Antarctic ice volume measured

On Day 44 of the trek, both a radar device meant to measure the ice thickness and a satellite communications unit to relay the data are still not working - despite being brought back to the UK for repairs and then delivered to the team last week.

BBC: Arctic team gives up on ice radar