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 Post subject: Re: Meteorological Weather Quiz (OQ)
Unread postPosted: Mon Feb 03, 2014 4:06 am 
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OK, we all love those highveld winters, especially the bit where you can't see your hand in front of your face for the smog. Why does the smog blanket the way it does for a number of hours in the early morning?

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 Post subject: Re: Meteorological Weather Quiz (OQ)
Unread postPosted: Mon Feb 03, 2014 9:56 am 
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"Today, most of the smog we see is photochemical smog. Photochemical smog is produced when sunlight reacts with nitrogen oxides and at least one volatile organic compound (VOC) in the atmosphere. Nitrogen oxides come from car exhaust, coal power plants, and factory emissions. VOCs are released from gasoline, paints, and many cleaning solvents. When sunlight hits these chemicals, they form airborne particles and ground-level ozone—or smog".
Smog is often worst in the mornings, when there is less air movement. :hmz:

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 Post subject: Re: Meteorological Weather Quiz (OQ)
Unread postPosted: Fri Feb 07, 2014 12:35 am 
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Philip1, not quite the answer I was looking for.

Anyone else?

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 Post subject: Re: Meteorological Weather Quiz (OQ)
Unread postPosted: Fri Feb 07, 2014 11:30 pm 
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Especially on the Highveld, where winter is characterised by still air, a cold air layer sinks to the ground and is held in place by a warmer layer above. Winter here also results in large quantities of carbon emissions from coal-burning stoves primarily in the informal settlements, as well as the usual motor-vehicle and industrial emissions, and photochemical radicals. All of this combined results in a choking layer of cool air saturated with fine particles, which scatters sunlight and significantly reduces visibility.

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 Post subject: Re: Meteorological Weather Quiz (OQ)
Unread postPosted: Mon Feb 10, 2014 12:36 am 
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:thumbs_up: OWN, and this would be known as a ............ :hmz:

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 Post subject: Re: Meteorological Weather Quiz (OQ)
Unread postPosted: Mon Feb 10, 2014 12:42 am 
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Befogged? :twisted:

Or, maybe a pogonip? :shock:

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 Post subject: Re: Meteorological Weather Quiz (OQ)
Unread postPosted: Mon Feb 10, 2014 12:46 am 
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onewithnature wrote:
Befogged? :twisted:

Or, maybe a pogonip? :shock:


:lol: :lol: :lol:

I was thinking of something as mundane as a temperature inversion, but I like the way your brain thinks OWN :clap: :clap:

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 Post subject: Re: Meteorological Weather Quiz (OQ)
Unread postPosted: Mon Feb 10, 2014 1:11 am 
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Thanks TP, and of course I return the compliment because we are, in many ways I think, fraternal neuronic clones. :wink: :D

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 Post subject: Re: Meteorological Weather Quiz (OQ)
Unread postPosted: Wed Aug 20, 2014 3:08 am 
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Are sea levels rising due to global warming, or is it all just an urban myth?

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 Post subject: Re: Meteorological Weather Quiz (OQ)
Unread postPosted: Wed Aug 20, 2014 9:28 am 
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Sea levels rise due to global warming and the melting of major stores of land ice, like ice sheets and glaciers?. It is going to take a long time!

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UNITE AGAINST POACHING...What we protect,
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Extinction is forever and survival is up to---every last one of us!


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 Post subject: Re: Meteorological Weather Quiz (OQ)
Unread postPosted: Wed Sep 10, 2014 10:59 pm 
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Is Philip1 correct OWN?

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 Post subject: Re: Meteorological Weather Quiz (OQ)
Unread postPosted: Thu Sep 18, 2014 11:09 am 
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onewithnature wrote:
Are sea levels rising due to global warming, or is it all just an urban myth?

Sea levels do rise due to global warming.

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"Lose yourself in Nature and find Peace!" (Ralph Waldo Emerson)
UNITE AGAINST POACHING...What we protect,
do not let poachers take it away!

Extinction is forever and survival is up to---every last one of us!


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 Post subject: Re: Meteorological Weather Quiz (OQ)
Unread postPosted: Fri Oct 31, 2014 7:29 am 
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:big_eyes: Nobody?

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UNITE AGAINST POACHING...What we protect,
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Extinction is forever and survival is up to---every last one of us!


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