Solar constant The rate at which solar energy is received on a surface at the outer edge of the atmosphere perpendicular to the sun's rays when the earth is at a mean distance from the sun.
Solar constant The flux of solar radiational energy falling on a surface that is positioned at the top of the atmosphere and oriented perpendicular to the solar beam when Earth is at its average distance from the sun.
Solar Constant Aka total solar irradiance. The constant expressing the amount of solar radiation reaching the Earth from the sun, approximately 1370 watts per square meter. It is not, in fact, truly constant and variations are detectable.
S is the solar constant - the incoming solar radiation per unit area - about 1367 W·m-2
a is the Earth's average albedo, approximately 0.37 to 0.39
r is Earth's radius â€" approximately 6.371Ã-106m
Ï€ is well known, approximately 3.14159 ...
available solar radiation"Total solar radiation intercepted by the earth, given by 2πrS, where r is the earth's radius and S the solar constant.
Solar constant Amount of solar radiation incident, per unit area and time, on a surface which is perpendicular to the radiation and is situated at the outer limit of the atmosphere, the earth being at its mean distance from the sun.
 See also: Solar radiation, Horizon, Earth, Current, Air
  
|
RSS
