论文标题
在冰冷的海洋世界中，大小很重要！
In icy ocean worlds, size matters!
论文作者
论文摘要
冰壳世界上的冰壳和地下海洋密切相结合 - 冰厚度梯度引起的冰壳的热和盐度通量驱动了海洋中的循环，而海洋循环的热传输则塑造了冰壳。由于在不久的将来的测量可能会限制在冰壳上方，因此了解这种海冰相互作用至关重要。使用海洋盒模型和一系列模拟2D海洋循环的实验，我们发现在相同的冰壳地形下，具有较强重力的大冰月往往具有更强的海洋热传输。结果，在尺寸较大的卫星上，平衡冰壳的几何形状有望使其更平坦，反之亦然。这一发现与观察到的冰壳几何形状与Enceladus和Europa的几何形状一致。
The ice shell and subsurface ocean on icy worlds are strongly coupled together -- heat and salinity flux from the ice shell induced by the ice thickness gradient drives circulation in the ocean, and in turn, the heat transport by ocean circulation shapes the ice shell. Since measurements in the near future are likely to remain constrained to above the ice shell, understanding this ocean-ice interaction is crucial. Using an ocean box model and a series of experiments simulating the 2D ocean circulation, we find that large icy moons with strong gravity tend to have stronger ocean heat transport under the same ice-shell topography. As a result, the equilibrium ice shell geometry is expected to be flatter on moons with larger size, and vice versa. This finding is broadly consistent with the observed ice shell geometry for Enceladus and Europa.
