adiabatic process american and british english spelling differences atmospheric pressure baroclinity boiling point buoyancy carbon dioxide ceteris paribus cloud cloud condensation nuclei cloud physics comet concentration condensation condensation in aerosol dynamics convection convective instability density dew point dielectric electric charge electrostatic discharge equation of state evaporation evaporative cooler exhalation fog frost gas gas laws gibbs free energy goff-gratch equation greenhouse gas heat heat flux heat index humidex humidity hydrosphere hygrometer ice ideal gas kelvin lapse rate latent heat latent heat flux lightning melting point microwave microwave radiometer mist molar volume molecular mass molecule nasa partial pressure permittivity precipitation pressure radar rain refraction refrigeration relative humidity respiration snow solid specific heat capacity standard conditions for temperature and pressure star static electricity steam sun superheating supersaturation surface weather analysis systematic name temperature thermal comfort thermodynamics troposphere van de graaff generator vapor vapor pressure visibility volcanic gas volcano voltage vorticity water water cycle weather wet-bulb temperature wikimedia commons wind wind chill