Scientists have unveiled the most accuratemap 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 spherebut a potato. A precise model of Earth's geoidis 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。图上精确的地球大地水准面是根据洋流、海平面的变化和地球冰川等元素的精确数据测量而成。
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。