participates in compaction process snow mass snowpack 2021-04-14T18:57:18.275Z envoCryo Given that SWEET considers the term to be a thickness and ENVO currently considers it a mass of snow. We have mismatch with the SWEET class, however, in ENVO we will take this term to be a mass of environmental material not a quality based on the harmonized GCW definition. See https://github.com/ESIPFed/sweet/issues/236#issue-805822974. envoPolar A snow mass which is large enough, and persists long enough, to undergo compaction under its own weight, leading to layer-like structural differentiation. Snowpack is found in geographic regions experiencing cold weather for extended periods of time. The GCW analysis of multiple glossaries found eight definitions of snowpack, with many commonalities but also disagreements. Please see the corresponding report "WMO GCW Nomenclature Assessment" for more information. http://orcid.org/0000-0002-3410-4655 snow pack