SWEET Ontology
type: Ontology
version info: 2.3
imports: phen.owl
imports: phenAtmoFog.owl
imports: phenSystem.owl
imports: rela.owl
imports: relaChemical.owl
imports: realmAtmoBoundaryLayer.owl
imports: phenFluidTransport.owl
imports: matr.owl
imports: stateChemical.owl

Acid Fog
type: Class
subclass of: Fog
subclass of: Restriction
  on property: hasSubstance
  has value: Acid
equivalent class: AcidHaze
comment: Occurrence of fog or haze in which considerable amounts of acidic material have been taken up from the gas phase, resulting in pH values less than approximately 3 in the liquid phase.

AcidRain
type: Class
subclass of: WetDeposition
subclass of: Restriction
  has value: Acid
  on property: hasSubstance
comment: A popular expression for the deposition by rainfall of various airborne pollutants (especially SO2 and NO2) that have harmful effects on vegetation, soils, buildings and other external structures.

MixedLayerVenting
type: Class
subclass of: Removal
subclass of: Restriction
  on property: hasPhenomena
  all values from: MixedLayer
comment: Removal of pollutants out of the top of the atmospheric boundary layer through the mixed-layer capping inversion. Normally pollutants cannot escape through the capping inversion. However, penetrating cumulus clouds, thunderstorms, mountain circulations, and frontal circulations can force polluted air through the inversion to vent pollutants into the free atmosphere.

NucleationScavenging
type: Class
subclass of: ScavengingByPrecipitation
comment: Water vapor that removes particulate matter from the atmosphere

ScavengingByPrecipitation
type: Class
subclass of: WetDeposition
comment: Removal of pollutants from the air by either rain or snow. Rainout (or snowout), which is the in-cloud capture of particulates as condensation nuclei, is one form of scavenging.

WetDeposition
type: Class
subclass of: Restriction
  on property: hasPhenomena
  all values from: Precipitation
subclass of: AtmosphereLandExchange
comment: The removal of atmospheric gases or particles through their incorporation into hydrometeors, which are then lost by precipitation.