Sublimation (phase transition): Difference between revisions

[[Snow]] and [[ice]] sublime, although more slowly, at temperatures below the freezing/[[melting point]] temperature line at 0&nbsp;°C for partial pressures below the triple point pressure of 612 Pa (0.0006006 atm).<ref>{{cite journal |last=Fassnacht |first=S. R. |year=2004 |title=Estimating Alter-shielded gauge snowfall undercatch, snowpack sublimation, and blowing snow transport at six sites in the coterminous USA |journal=Hydrol. Process |doi=10.1002/hyp.5806 |bibcode=2004HyPr...18.3481F |volume=18 |issue=18 |pages=3481–3492}}</ref> In [[freeze-drying]], the material to be dehydrated is frozen and its water is allowed to sublime under reduced pressure or vacuum. The loss of snow from a [[snowfield]] during a cold spell is often caused by sunshine acting directly on the upper layers of the snow. [[Ablation]] is a process that includes sublimation and erosive wear of [[glacier ice]].{{citation needed|date=October 2021}}