The probe's ice-penetrating radar will gather clues about the frozen shell's interior structure, possibly identifying where ice and ocean meet.

探测器的雷达可穿透冰层，收集有关冰壳内部结构的线索，可能还可以确定冰川和海洋的交汇点。

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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 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

This autonomous, solar-powered robot carries a ground-penetrating radar to study how snow accumulates, adding layer upon layer to the ice sheet over time.

ENGADGET: NASA's GROVER eco-rover to examine Greenland's ice sheet (video)