the zone of air that surrounds a planet. Atmospheric Pressure

instrument with a narrow ( circumsolar

the lowest region of the atmosphere between the surface of the earth and the stratosphere. In the troposphere the temperature usually decreases with increasing altitude. Trough

gaseous water (individual water molecules) in the atmosphere. Watt

an instrument used for very accurate measurements of solar irradiance

the mass (in grams) of water in a volume (cubic meter) of air; units are g/m3

when the substance of interest is captured by another substance, reducing the amount available. For examble, solar energy is absorbed by some atmospheric molecules, solar collectors, and the ocean. Ae [..]

(technically known as the relative

Atmospheric Environment Service

Automatic Hickey-Frieden absolute cavity radiometer