Aerosols
Microscopic particles that remain suspended for considerable periods of time; they may
originate from many sources, both natural and human made, and include sea salts from
breaking waves; fine soil blown into the air; smoke and soot from fires; pollen and
microorganisms lifted by the wind, ash, and dust from volcanic eruptions and more; tiny
solid
and liquid particles suspended in the air for a substantial amount of time.
Air
The mixture of gases and particles that make up Earth's atmosphere. Nitrogen and
oxygen are most abundant.
Albedo
The reflectivity of a substance, usually expressed as a percentage
of the incident radiation reflected.
Circle of Illumination
The great circle that separates daylight from darkness.
Climate
A description of aggregate weather conditions; the sum of all statistical weather
information that helps describe a place or region.
Conduction
The transfer of heat through matter by molecular activity.
Energy is transferred through collisions from one molecule to another.
Convection
The transfer of heat by the movement of a mass or substance.
It can take place only in fluids.
Diffused Light
The result of small dust particles and gas molecules in the atmosphere scattering
(some) sunlight in all directions of the Earth.
Element(s) (of weather and climate)
Those quantities or properties of the atmosphere that are measured regularly and that
are used to express the nature of weather and climate.
Environmental Lapse Rate
The rate of temperature decrease with increasing height in the troposphere.
Equinox
The time when the vertical rays of the Sun are striking the equator. The length of
daylight and darkness is equal at all latitudes at equinox.
Greenhouse Effect
The transmission of short-wave solar radiation by the atmosphere coupled with the
selective absorption of longer-wavelength terrestrial radiation, especially by water vapor
and carbon dioxide.
Heat
Energy possessed by a material arising from the internal motions of its atoms or
molecules.
Inclination of the Axis
The tilt of Earth's axis from the perpendicular to the plane of Earth's orbit.