The Russians did "succeed" to reach the water at borehole 5G-2 in 2012. However, the lake water flooded into the borehole due to overpressure, and refroze. They drilled again during the next campaign to sample this refrozen lake water, but found that it was contaminated by drilling fluid (DF). From Alekhina et al. 2017:
As expected, the level of ...
When electromagnetic waves travel through a medium, it can interact with the medium in question. But that interaction depends on the electric properties of the medium.
Ice, being a dielectric medium, do interact with the incident e.m. wave from the sensor.
The penetration depth is directly proportional to the wavelength of the radiation used (there are ...
According to "Ice Sheet Modeling"
ice behaves as a deformable plastic material, which means that there
is a critical shear stress, below which no strain (deformation or
flow) will occur ... If the slope is too low, the basal shear stress
will not match the critical shear stress, ... but as snow piles up,
... flow will begin. ... The result of this ...