melt pond water column exposed melt pond A melt pond which is formed close to that part of an ice mass which is in contact with some underlying water body, and which has channels connecting it to that water body. http://orcid.org/0000-0001-5812-6405 It would be good to add an axiom such as 'continuous with' some 'water body'. envoPolar http://orcid.org/0000-0002-3410-4655