Global Water and Air Volume Compared to Earth - Picture- , page 1


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Topic started on 13-3-2008 @ 04:38 PM by Keyhole
This picture shows the total volume of air and water (formed into spheres) on Earth compared to the size of the Earth.

Global Water and Air Volume



Global water and air volume.

Conceptual computer artwork of the total volume of water on Earth (left) and of air in the Earth's atmosphere (right) shown as spheres (blue and pink). The spheres show how finite water and air supplies are. The water sphere measures 1390 kilometres across and has a volume of 1.4 billion cubic kilometres. This includes all the water in the oceans, seas, ice caps, lakes and rivers as well as ground water, and that in the atmosphere. The air sphere measures 1999 kilometres across and weighs 5140 trillion tonnes. As the atmosphere extends from Earth it becomes less dense. Half of the air lies within the first 5 kilometres of the atmosphere.



Kind of shocked me to see this comparison, I would have thought that there was more air and water than what this shows.

Makes you realize why we must conserve and protect our resources and the environment.

[edit on 13/3/08 by Keyhole]


reply posted on 10-2-2009 @ 11:32 AM by Fiverz
It might seem strange, but it's probably right.

Think about it, the deepest part of the Pacific in the Mariana Trench is only
7-8 miles deep. The sphere shown there had a diameter 863 miles wide, but also 863 mi "deep" or "tall". If you were to pretend it was a cube (obviously alot more volume, but lets use it for simplicity's sake) and say, took 2 mi deep slices off (the average depth of the pacific ocean), that would give you 430 slices that are 863mi x 863mi or approximately 320,250,670 square miles of 2 mi deep water.

Another way to visualize it is that the diameter of the earth is roughly 7926 miles across. The deepest part of the Mariana Trench is at most 1/100th of that diameter. Really more like water spilled on a table rather than a bucket if you think about it.

That all being said water is finite, but in terms we can understand, finite in the sense that we are able to walk completely around the globe on foot and be able to comprehend it.

[edit on 2/10/2009 by Fiverz]

[edit on 2/10/2009 by Fiverz]
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