Rift TD is dimensionally stable; data can be input in any Unit System provided that data is dimensionally consistent.
Some data types can be:
Length, Area, and Volume
Assuming a length measurement [L]:
Areas are reported in units [L]2 e.g. m2, ft2
Volume is reported in units [L]3 e.g. m3, ft3
Density is input in units Mass [M] per Unit Volume [L]3 i.e. [M]/[L]3 e.g. Tonnes/m3 , lb/ft3.
Rate of Rise
Rate of Rise is output in units Length [L] per Annum e.g. m/year, ft/year.
Deposition rate in input in units Mass per Day e.g. tonnes⁄day, lb⁄day.