• If the uplift rate is the same as the erosion rate (Cases 1 and 4), the repository location changes from a deep part of the plain (P-1) to a shallow part of the plain (P-2).
• If the uplift rate is larger than the erosion rate (Cases 2 and 3), the repository location changes from a deep part of the plain (P-1) to a shallow part of the mountain (H-2).
• Both uplift and erosion rates were parametrically set based on a conservative erosion rate of 1 mm/year with consideration to uplift throughout Japan over the past 100 thousand years.