c.1300, impose a tax on, from Old French taxer impose a tax (13c.), from Latin taxare evaluate, estimate, assess, handle, also censure, charge, probably a frequentative form of tangere to touch (see tangent). Sense of burden, put a strain on first recorded 1670s; that of censure, reprove is from 1560s.
The average depth of frost penetration ranges from 25 inches (64 cm) in southwestern South Dakota to 50 inches (127 cm) in. the northeast. Depth of frost depends on the amount of residue cover, soil moisture content, and the amount and timing of. snowfalls in relation to temperature extremes.
7 In this study the frost depth data in 2010 and 2011 from 10 Road Weather Information. 8 System (RWIS) stations in the Upper Peninsula of the State of Michigan and 8 RWIS stations in. 9 the Lower Peninsula were used to develop frost depth prediction model (11).