- the average rate at which radiant energy is received from the sun by the earth, equal to 1.94 small calories per minute per square centimeter of area perpendicular to the sun's rays, measured at a point outside the earth's atmosphere when the earth is at its mean distance from the sun.
- the rate at which the sun's energy is received per unit area at the top of the earth's atmosphere when the sun is at its mean distance from the earth and atmospheric absorption has been corrected for. Its value is 1367 watts per square metre
More Definitions
- CULTURE VULTURE (noun) Definition, Meaning & Examples
- CASH LETTER (noun) Definition, Meaning & Examples
- OSTRACON (noun) Definition, Meaning & Examples
- JOHNNYCAKE (noun) Definition, Meaning & Examples
- PICK ONE'S WAY (noun) Definition, Meaning & Examples
- THERMODYNAMICS (noun) Definition, Meaning & Examples