Category
page 1Cloud and fog physics
contrail
Contrails (; short for "condensation trails") or vapour trails are line-shaped clouds produced by aircraft engine exhaust or changes in air pressure, typically at aircraft cruising altitudes several kilometres/miles above the Earth's surface. They are composed primarily of water, in the form of ice crystals. The combination of water vapor in aircraft engine exhaust and the low ambient temperatures at high altitudes cause the trails' formation.
cloud condensation nucleus
small particle (typically 0.2 µm) on which water vapor condenses
Bergeron process
process of ice crystal growth in clouds
coalescence
process by which droplets, bubbles, or particles merge during contact
cloud physics
study if the formation of clouds
ice nucleus
Particle helping to form an ice crystal
ceiling balloon
ballon observed to determine the height of the base of clouds
Cloud feedback
type of climate change feedback mechanism
overshooting top
part of the anvil of a thunderstorm
Köhler theory
describes the process in which water vapor condenses and forms liquid cloud drops
Ship tracks
Clouds that form around the exhaust released by ships
Twomey effect
the effect of solar radiation being deflected by clouds
Entrainment
phenomenon of the atmosphere
Raindrop size distribution
measurement system to quantify intensity of rainfall
convective overshoot
phenomenon of convection
ceiling projector
meteorological tool