科学家：我们的地球长得像个坑坑洼洼的土豆

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科学家：我们的地球长得像个坑坑洼洼的土豆

Scientists have unveiled the most accurate map ever produced of the Earth's gravity.科学家们发布了一副最为精确的地球重力地图。

It seems it is shaped not like a sphere but a potato. A precise model of Earth's geoid is crucial for deriving accurate measurements of ocean circulation, sea-level change and terrestrial ice dynamics. 从图上看来我们住的地球不仅不是个规则的球形，看起来还有点像个坑坑洼洼的土豆。一个精确的地球水准面模型对于推到出精确的洋流、海平面的变化和地球冰川运动来说都是非常重要的。

The geoid is also used as a reference surface from which to map the topographical features on the planet. In addition, a better understanding of variations in the gravity field will lead to a deeper understanding of Earth's interior.本次制作的地球水准面模型在绘制地球地貌时也将会被用来参考。另外这对人类更好的研究重力作用下地球内部活动产生积极影响。