OddBall1st
Well-Known Member
Lets start with your mistaken version of the earth. Can you trust photographs from NASA? If you take a look at the photos taken from space of the earth, you'll see that your cartoon concept is completely wrong.
Earth and the Moon Together (NASA, Moon, 6/16/09) by NASA’s Marshall Space Flight Center
Note: Half the earth is illuminated. Everything driving the earth's temperature derives from the sunlight intercepted as shown in this image. Please note that energy density from the sun is the same regardless if the sunlight strikes water or solid earth. Also, the energy density is the same whether the earth has a tilt or not. You can turn that ball however you like in the sunlight and the energy density is always the same.
The earth's temperature is distributed according to the angle at which the sunlight strikes the earth, as shown below. This is where the tilt comes into play. As the earth wobbles, some areas see a broader or narrower spread of radiation depending on the angle presented to sunlight. The total amount of radiation striking the earth and its atmosphere is the same but energy distribution changes towards the poles.
Half the earth is illuminated by the sun but the other half is not. Only the side facing sunlight is heated. The entire earth emits thermal radiation.
In practice, the earth heats and cools according to where sunlight is absorbed:
Given these variables, surface temperature varies greatly depending on location, time of day, day of year and weather patterns. Climate science is the study of how these variables affect weather and weather patterns across the planet. One metric used to assess global climate change is the earth's average surface temperature, which is the grand average of the average water temperature of the first few meters below the ocean's surface and the temperature found between the earth's land surface and 1.5 meters above.
Now, moving on to your strange idea of the shape of the earth. This is what you said the earth looks like:
This is what the earth looks like from space. Note that the earth is shaped more like a globe than an egg:
NASA Blue Marble 2007 East by NASA Goddard Space Flight Center
Although the image shows the earth is very much round-shaped in appearance, there is a small flattening of the earth through its axis of rotation. The earth has a very small broadening at the equator and minor flattening through the poles. The aspect ratio is about 1.003-to-1 and nothing like your drawing, either in magnitude or orientation.
Summary:
!) The earth is not egg shaped and oriented like you say.
2) Surface temperature is colder at the poles and warmer at the equator because sunlight strikes the earth at broad angles at the poles and sunlight strikes the earth directly (90 degree angle) at the equator.
3) Tilt and wobble cause the earth's surface to shift about relative to the sunlight but the total amount of sunlight remains constant.
4) The sunlight energy density striking the earth is independent from whatever it strikes, be it cloud, air, water or rock.
5) The average earth surface temperature is the grand average of the average water temperature of the first few meters below the ocean's surface and the average temperature found between the earth's land surface and 1.5 meters above.
These are facts and not theory. Do you agree that these are facts?
No, let`s start with I clearly wrote exaggerated for viewing, was gonna write eggsaggerated for you, but I scribbled it, Not with what you said.
Half the Earth is illuminated is all you got correct. (where`s the global warming ?)
To say everything driving the Earths temperature is soley from sunlight intercepted is not complete. You need to mention exposer times and currents. Land holds heat better than water so air above land is warmer with equal sunlight as water. At night, the more heat over land rises quicker than air over the less heated water. (sea breeze) There`s a lot of water. Then there are places that get no sunlight at all for two or more months. This is all because of the axis.
The Earths temperature is distributed according to the angle at which sunlight strikes the Earth as shown below,.... is misleading. It should read that sunlight is distributed according to the angle at which it strikes the Earth.
In practice, the Earth heats and cools according to rate of loss and gain and movements, not that is just absorbed.
look a summary.....ellipses.
1) The earth is not as exaggerated as my cartoon labeled exaggerated is.
2) I completely disagree. I say it`s because of astronomical night for almost three months each year. (exposer time) Directly related to axis. That cold air for three months moves,...(polar vortexes) Trying to get an average planet temperature and relating that to current and rate changes to climate again is not complete. Zoning is the way to go, not a global average.
3) Total amount of sunlight is not equally distributed between land and water, but incoming constant.
4) If it were not independent, it could not strike anything.
5) The first few meters of the Bearing Sea are not the same as the first few meters of the Red Sea, I see no possible way to average out water temperature with currents a few meters under in locations that never come remotely close in temperatures as others but do blend together. Blend, pay attention to that word.
How`d I do ?
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