For the result of most pit-filling methods,there are normally flat areas present at DEM data,which raises difficulty of distribution of flowing in flat DEM cells under the Single Direction mthod,such pit-filling methods named partly-filling in this passage.

Sinks are very common in DEM realizations produced in DEM uncertainty evaluation,which is affected by sink filling.

Study on the amendment method of non-full filled cavity perturbation for the real part of permittivity measurement;

Study on Permittivity Measurement by Non-full Filled Cavity Perturbation;