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Old 12-27-2015, 09:35 AM
 
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I think the title of this topic refers to the mean sunshine amount (hours/year) in the whole of Africa. The sunshine intensity is very high throughout the continent, as it's mainly tropical.

The Sahara is undoubtedly a very sunny region, but as you correctly said it, its tremendous size makes it really significant. It's about 8 millions km˛ of almost uninterrupted desert expanses.

The sunniest place in the world must be the eastern Sahara with yearly mean cloud cover rates dropping to barely 0.5 tenth of the sky area (ex : Aswan area), and percentages of bright sunshine peaking at 97% of the time. The frequency of clear skies and the number of clear days over there are the highest found on Earth, too. Only, the Atacama can eventually rival that.

The true question might be the following : does Africa stay sunny even beyond the Sahara? Or else, is Sub-Saharan Africa sunny?
According to NASA Earth Observatory, it's likely true except for the humid Congo Basin. When I say "sunny", I usually make allusion to the cloud cover.

Last edited by tpactionreplay; 12-27-2015 at 10:06 AM..
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Old 02-29-2016, 02:50 PM
 
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Quote:
Originally Posted by VGravitas View Post
I just read an article on the UN's websites about plans to build solar power stations in many areas across the continent. The article stated that such plans could succeed because of the abundant sun in Africa.


The article made me wonder if there is more sun in Africa, on average, than other continents? In other words, does it get the most sun?
Why do you think most Africans have black skin tones? Think about it!
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Old 02-29-2016, 07:13 PM
 
Location: Katy,Texas
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saxonwold actually early humans had black skin tones, I am trying to find a source so it would kind of be the opposite as everyone migrated away their skin got lighter not darker.
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Old 02-29-2016, 07:20 PM
 
Location: Historic West End
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Ah Yeah! The darker skin.
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Old 04-12-2016, 09:17 AM
 
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Originally Posted by saxonwold View Post
Why do you think most Africans have black skin tones? Think about it!
Yeah, but dark-skinned people also live in the rainforests of Central Africa where it's cloudy and overcast much of the year and where bright sunshine is only intermittent. For example, Malabo in Equatorial Guinea (1,000 to 1,200 sunny hours/year) where native people are very dark-skinned is still less sunshiny than London in England (1,400 to 1,600 sunny hours/year) where native people are very light-skinned.

Some people have black skin tones because of the greater strength of the UV solar radiation under their latitudes against which there's a need of better protection. This doesn't depend at all, or a little bit, on the number of sunshine hours. So this is not because there are dark-skinned people that Africa is necessarily sunnier than any other continent.

Last edited by tpactionreplay; 04-12-2016 at 09:28 AM..
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Old 04-12-2016, 03:15 PM
 
Location: New Jersey
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^ An argument can be made that those people may have had dark skin longer than they have been in that area.
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