solar constant


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solar constant

n.
The average density of solar radiation measured outside Earth's atmosphere and at Earth's mean distance from the sun, equal to 0.140 watt per square centimeter.

solar constant

n
(Units) 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

so′lar con′stant


n.
the average rate at which solar radiant energy is received by the earth: 1.94 small calories per minute per sq. cm.
ThesaurusAntonymsRelated WordsSynonymsLegend:
Noun1.solar constant - the rate at which radiant solar energy is received at the outer layer of the earth's atmosphere
rate - a magnitude or frequency relative to a time unit; "they traveled at a rate of 55 miles per hour"; "the rate of change was faster than expected"
Translations
References in periodicals archive ?
Variations in the solar constant: The solar constant depends on the Earth-Sun distance that varies over the year due to Earth's elliptical orbit around the sun.
Solar Constant 4000 is currently the only system on the market that is able to ensure even distribution of the radiation on the surface and allows changes in radiation intensity without affecting the spectral distribution.
Still, it inspired the astronomers to write, "As the solar constant increases with time, Earth's future is analogous to Venus's past.
At the upper layer of atmosphere the solar constant is given as 1367W/m2 with the visible spectrum representing nearly half of energy radiated.
Regardless of ice ages and other less severe weather patterns there has been a solar constant of average output for the past billion years and this will continue for more billions, regardless of what might happen to global warming and life on Earth.