Written by Christos I. Vournas,
M.sc. mechanical engineer
We do planets and moons surface temperatures comparison.
The presence of atmosphere doesn't warm Earth's surface.
It is the other reasons, not the presence of atmosphere, that make Earth warmer than the Moon by +68°C.
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Key words:
Specular Reflection
Φ - Solar Irradiation Accepting Factor (spherical shape and surface roughness coefficient), for smooth bodies Φ = 0,47 and for rough / porous Φ = 1
Immediate IR Emission
Rotational Warming Phenomenon ( N*cp )1/16
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In a complex system there are multiple factors involved.
Earth’s system is very complex…
But in a complex system there are some major factors which play the dominant role, and there are many minor factors.
Also in a complex system there are multiple micro factors.
It is said that in complex system there are millions nano factors.
Science admits that in complex system there is an infinite number of infinitesimal significance factors.
When we model the Earth’s system mean surface temperature, we should take in consideration the major factors ruling the surface temperature.
These factors are
1. The Solar flux So = 1.362 W/m2
2. The Earth’s average albedo a = 0,306
3. The Φ = 0,47 (smooth spherical surface solar irradiation accepting factor)
4. The Earth’s rate of rotation N = 1 rotation /day
5. The Earth’s average surface specific heat cp = 1 cal /gr.oC
The Earth’s atmosphere is very thin to play a significant role in Earth’s mean surface temperature.
Earth’s theoretically calculated equilibrium temperature is 255 K. Earth’s measured mean surface temperature is 288 K.
If the difference of 33 oC to be attributed to the atmosphere’s greenhouse effect, then, of course, CO2 emissions could be responsible for some of the observed temperature rise.
But we already know, that there is the Rotational Warming phenomenon, which actually attributes for this 33 oC difference, and not the Earth’s atmosphere greenhouse effect.
In fact, Earth’s atmosphere adds to mean surface temperature no more than 0.4 oC.
It is 2 orders of magnitude less than the 33 oC difference.
The CO2 emissions do not cause rise of the temperature.
Nevertheless we should make efforts to limit the use of fossil fuels, because they are not replaceable. Once burned there would not be available coal, there would not be available oil and natural gas for the future generations, for the future of mankind.
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Table of contents - Links
0). Explain Rotational Warming Model.
Demonstrate the Initial PREMISE, Links: (1) and (2)
3).The Planetary Temperatures Comparison Criteria.
4). "The total amount of the specularly reflected portion of solar flux"
5). How A Planet Retains The Solar Energy - the role of the Immediate IR emission.
6). Φ -Factor is an analogue of the well known Drag Coefficient Cd=0,47
7). “What ‘portion’ of ‘sunlight’ reaches surface of Earth?”
8). The satellites do not measure Bond Albedo.
9). Stefan-Boltzmann formula J = σ T4 W/m² doesn't apply to terrestrial temperatures.
10). The Theoretical Equation.
12). The actual reason of the observed Global Warming.
13). The Axial Precession's role in Global Warming.
14). The Original Milankovitch cycle.
15). The Reversed Milankovitch cycle.
16). The higher CO2 content in ice core samples relates to colder periods.
17). Sensible Heat /Latent Heat ratio.
18). The conventional greenhouses, and the role of immediate IR emission.
19). NASA Technical Memorandum An Earth Albedo Model
20). The yearly total Immediate IR Emitted solar energy - in our times - is lower.
21). The yearly total reflected solar energy - in our times - is lower.
Appendix - Links
1). Earth's Corrected Effective Temperature (210 K ) calculation.
2). Earth's Average Surface Temperature (288 K ) calculation.
3). Moon's Corrected Effective Temperature (224 K ) calculation.
4). Moon's Average Surface Temperature (220 K ) calculation.
5). Mars' Corrected Effective Temperature (174 K ) calculation.
6). Mars' Average Surface Temperature (210 K ) calculation.
7). Mercury's Corrected Effective Temperature (364 K ) calculation.
8). Mercury's Average Surface Temperature (340 K ) calculation.
9). Titan's Average Surface Temperature (93,7 K ) calculation.
10). Earth / Mars satellite measured mean surface temperatures 288 K and 210 K comparison.
11). Earth's /Moon's temps 288K /220K comparison.
13). Blog.
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The table of contents will be completed some time soon. For more pages view the menu at the top.
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