Science. 1993 Sep 24;261(5129):1710-3. doi: 10.1126/science.261.5129.1710.
Airborne radar images of part of the Greenland ice sheet reveal icy terrain whose radar properties are unique among radar-studied terrestrial surfaces but resemble those of Jupiter's icy Galilean satellites. The 5.6- and 24-centimeter-wavelength echoes from the Greenland percolation zone, like the 3.5- and 13-centimeter-wavelength echoes from the icy satellites, are extremely intense and have anomalous circular and linear polarization ratios. However, the detailed subsurface configurations of the Galilean satellite regoliths, where heterogeneities are the product of prolonged meteoroid bombardment, are unlikely to resemble that within the Greenland percolation zone, where heterogeneities are the product of seasonal melting and refreezing.
格陵兰冰原部分的机载雷达图像显示出冰原地貌，其雷达特性在经过雷达研究的陆面中是独一无二的，但与木星冰冷的伽利略卫星相似。来自格陵兰渗流区的 5.6 和 24 厘米波长回波，与来自冰冷卫星的 3.5 和 13 厘米波长回波一样，极其强烈，具有异常的圆极化和线极化比值。然而，伽利略卫星的表层土壤的详细地下结构，其中的不均匀性是长期受流星体撞击的产物，不太可能与格陵兰渗流区中的情况相似，那里的不均匀性是季节性融化和再冻结的产物。
