| A layer of the cryosphere. |
| •owl:Thing |
| •SpatioTemporalThing |
| •Endurant |
| •PhysicalEndurant |
| •PhysicalObject |
| •NonAgentivePhysicalObject |
| •PhysicalPlace |
| •GeosphereLayer |
| •CryosphereLayer |
| •PlanetaryStructureObject |
| •CryosphereLayer |
| PlanetaryStructureObject |
| hasPrimarySubstanceConstituent SOME (Snow OR Ice) |
| GeosphereLayer |
| isPartOf SOME Cryosphere |