Shine light on something and measure how much light is reflected, that in essence is what
the Bond Albedo measurement is.
I used
a Bond Albedo of 0.3 while they used one of 0.31 and my flux is 1366W / m ^ 2 compared to their 1368W / m ^ 2.
It is calculated to be approximately 0.7 by using the measured value of
the Bond Albedo.
The Bond Albedo is the measure of all incident that is reflected, and that is exactly what is important.
The Bond Albedo is the total reflected solar radiation from both atmosphere and earth surface.
Neutrino, since you are doing a thought experiment at this time [I could be wrong] wouldn't the geometric albedo be more appropriate than
the bond albedo?
Does anyone know what the latest figure for the Earth's bolometric
Bond albedo is?
For his greenhouse line drawn between Venus and Mars, there were ten figures available from the literature on the bolometric
Bond albedo of Mars.
The bond albedo for the Earth is given as 0.29 by de Pater and Lissauer,»
However as shown above
the Bond albedo applies for the range of solar wavelengths, i.e. up to ~ 5 microns.
Try this for size: http://hyperphysics.phy-astr.gsu.edu/hbase/phyopt/albedo.html Includes this «
The bond albedo is the total radiation reflected from an object compared to the total incident radiation from the Sun.
Contains a fundamental error, doesn't understand the definition of
Bond albedo, and misapplies Kirchoff's Law (doesn't understand that a and ε are functions of wavelength).
We'd need to add
the Bond albedo into Equation 2.3 (making this a gray body instead of a black body in the process) and so about 10 % of the radiation that reaches Venus is actually absorbed by the planet.
I didn't include
Bond albedo.
But whether someone chooses to use the term Albedo or
Bond albedo it doesn't appear as though anyone has actually got right the values for the
Bond albedo on any planetary body or any object in space - and as result still getting a ballpark number.
Regarding albedo, the accepted value is about 0.30 for
the Bond albedo, which is the fraction of incident solar radiation scattered / reflected at all angles from the Earth.
It also facilitates the theoretical determination of the planetary radiative equilibrium cloud cover, cloud altitude and
Bond albedo.
where Te is in kelvins, S is the Solar constant, A the Earth's bolometric
Bond albedo, and sigma the Stefan - Boltzmann constant.
A is the Earth's «bolometric
Bond albedo,» the fraction of solar energy reflected away by the Earth's surface and atmosphere (mostly by clouds).
That is, by decreasing the (rather high)
Bond albedo of Earth one could increase rate of entropy production, which is inconsistent with a MEP state.
1) total absorbed solar radiation on the order of 1e27J / yr from total incident radiation times (1 -
bond albedo)
For each planetary candidate, the equilibrium surface temperatures are derived from «grey - body spheres without atmospheres... [and] calculations assume
a Bond albedo of 0.3, emissivity of 0.9, and a uniform surface temperature... [with uncertainties of] approximately 22 %... because of uncertainties in the stellar size, mass, and temperature as well as the planetary albedo.»
This is in contrast to
the Bond albedo, which describes the total amount of energy reflected across all wavelengths and always falls in the range of 0 to 1.
This estimate is generous to the GCR hypothesis, since the cumulus - to - water albedo shift exaggerates the true change of low clouds, and I need
bond albedos in my calculation and I'm using visible albedos.