SWEET Ontology
type: Ontology
version info: 2.3
imports: matr.owl
imports: matrCompound.owl
imports: stateChemical.owl
imports: human.owl
imports: relaProvenance.owl
imports: phenAtmoPrecipitation.owl
imports: realm.owl
imports: relaSpace.owl
imports: relaMath.owl
imports: rela.owl
imports: relaChemical.owl
imports: stateSolid.owl
imports: statePhysical.owl
imports: state.owl
imports: propSpaceDistance.owl

CloudDrop
type: Class
subclass of: Drop
subclass of: Restriction
  on property: diameter
  has value: SizeRange micron
    has lower bound: 200
    has upper bound: 500

RainDrop
type: Class
subclass of: Drop
subclass of: Restriction
  on property: diameter
  has value: SizeRange micron
    has lower bound: 500

DrizzleDrop
type: Class
subclass of: Drop
subclass of: Restriction
  on property: diameter
  has value: SizeRange micron
    has upper bound: 200

BrackishWater
type: Class
subclass of: SaltWater
subclass of: Restriction
  has value: Brackish
  on property: hasState
comment: Brackish water is water that has more salinity than fresh water, but not as much as seawater. It may result from mixing of seawater with fresh water, as in estuaries, or it may occur in brackish fossil aquifers.

DepthHoar
type: Class
subclass of: IceCrystal
comment: Depth hoares are large crystals occurring at the base of a snowpack that form due to the fact that a snow crystal can grow over time as moisture freezes onto the crystal from vapor that is rising in the snowpack.

Firn
type: Class
subclass of: IceCrystal
comment: Firn is partially-compacted névé, a type of snow that has been left over from past seasons and has been recrystallized into a substance denser than névé. It is ice that is at an intermediate stage between snow and glacial ice. Firn has the appearance of wet sugar, but has a hardness that makes it extremely resistant to shovelling. It generally has a density greater than 550 kg/m³ and is often found underneath the snow that accumulates at the head of a glacier.

Rime
type: Class
subclass of: Ice
comment: A white or milky and opaque granular deposit of ice formed by the rapid freezing of supercooled water drops as they impinge upon an exposed object.