SWEET Ontology
type: Ontology
version info: 2.3
imports: phenAtmo.owl
imports: propCharge.owl
imports: rela.owl
imports: phenAtmoPrecipitation.owl
imports: phenWave.owl

BallLightning
type: Class
subclass of: Lightning
comment: A rare and randomly occurring bright ball of light observed floating or moving through the atmosphere close to the ground.

BeadedLightning
type: Class
subclass of: Lightning
comment: A particular aspect of a normal lightning flash occasionally seen when the observer happens to view end-on a number of segments of the irregular channel (zigzag lightning) and hence receives an impression of higher luminosity at a series of locations along the channel.

BlueJet
type: Class
subclass of: Lightning
comment: Weakly luminous upward propagating discharges, blue in color, emanating from the tops of thunderstorms.

JunctionStreamer
type: Class
subclass of: Restriction
  on property: hasPhenomena
  all values from: Thunderstorm
subclass of: Restriction
  on property: hasPhenomena
  all values from: Lightning
subclass of: Lightning
comment: The process by which negative charge centers at successively more distant locations in a thundercloud are tapped for discharge by successive strokes of cloud-to-ground lightning.

Lightning
type: Class
subclass of: MeteorologicalPhenomena
subclass of: Restriction
  on property: hasPhenomena
  some values from: ElectricPotential
subclass of: Restriction
  on property: hasPhenomena
  all values from: Thunder
comment: Lightning is a transient, high-current electric discharge with pathlengths measured in kilometers. The most common source of lightning is the electric charge separated in ordinary thunderstorm clouds.

ReturnStroke
type: Class
subclass of: Lightning
comment: The intense luminosity that propagates upward from earth to cloud base in the last phase of each lightning stroke of a cloud-to-ground discharge.

Thunder
type: Class
subclass of: MeteorologicalPhenomena
subclass of: Restriction
  on property: hasPhenomena
  all values from: Sound
comment: The sound emitted by rapidly expanding gases along the channel of a lightning discharge.