CO2 and methane greenhouse gas terrestrial motion

Warming and Climate Change: causes, consequences, analysis ... Debate on CO2 and other greenhouse gas.
Christophe
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CO2 and methane greenhouse gas terrestrial motion




by Christophe » 23/03/08, 16:19

First animations on greenhouse gases

Exploiting the result of three years of observations carried out by the Sciamachy instrument on board ESA's Envisat satellite, scientists produced the very first films illustrating the global distribution of the main greenhouse gases - carbon dioxide and methane - which participate in global warming.

The importance of reducing emissions from these “anthropogenic” gases, that is to say of human origin, was recently underlined by the firm commitment of European Union leaders to reduce, by 2020 , greenhouse gas emissions of at least 20% over 1990 levels. Another illustration of the urgency of the fight against global warming is Britain's proposal last week to the implementation of legislation to reduce emissions of these gases.
Close monitoring is essential to ensure that these objectives are met, and space instruments are used today for this purpose. The Sciamachy (Scanning Imaging Absorption Spectrometer for Atmospheric Chartography) instrument, for example, is the first space sensor capable of measuring major greenhouse gases with high sensitivity up to the surface of the Earth, via an observation at the "nadir" of the spectrum of sunlight passing through the atmosphere.


Read more: http://www.esa.int/esaCP/SEMLGWS4LZE_France_0.html

CO2:
Image

CH4:
Image

explanations: http://www.esa.int/esaCP/SEMLGWS4LZE_Fr ... l#subhead1
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by Remundo » 23/03/08, 22:42

It is indeed very striking.

For CO2, we see that it accumulates in winter, quite logical because the vegetation is at rest.

But do you know, Christophe, to interpret the massive increase in methane during the summer (June to September) :?:

That questions me ...
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by delnoram » 23/03/08, 23:02

I'm not sure if you find the answer to your question on this site, but it says some interesting things about methane.

http://www.rac-f.org/article.php3?id_article=908
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by highfly-addict » 24/03/08, 00:01

Remundo wrote:It is indeed very striking.

For CO2, we see that it accumulates in winter, quite logical because the vegetation is at rest.

But do you know, Christophe, to interpret the massive increase in methane during the summer (June to September) :?:

That questions me ...


Can it also be a biological activity (µ soil organisms, peat bogs and marshes)?
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by Christophe » 24/03/08, 02:21

Yes I think the same: + heat = + biological activity = + methane (and CO2 but compensated by the capatage of plants apparently).

For CO2 it is also in winter that the most CO2 is rejected (heating and greater electrical need of non-nuclear power plants ...) ...

Otherwise there is still a very fishy thing: aren't the north-south seasons supposed to be reversed? So if there was an influence of the vegetation it should be seen right?
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by Arthur_64 » 24/03/08, 09:37

Christophe wrote:Otherwise there is still a very fishy thing: aren't the north-south seasons supposed to be reversed? So if there was an influence of the vegetation it should be seen right?


The northern countries are (for the moment) the biggest polluters, by far.

CO2 and CH4 are not confined to the northern hemisphere (they follow the example of the Chernobyl cloud). So we find some in the South, which are added to local production.

So when emissions rise (or fall) by a factor x here, even if the relationship is the opposite for them, the quantity produced overall being very different, it is our relationships that take precedence.

The above is only a hypothesis ...
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by Christophe » 24/03/08, 13:53

Well not too much agreement because if there was an impact of plants it should be reversed between the North and the South depending on the season ...

What appears is the concentration of CO2 at the SOL level, right?
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by Remundo » 25/03/08, 09:55

Hello everybody,

Well seen Christophe for the winter overconsumption, but this overconsumption only concerns the Northern hemisphere and this is quite inconsistent with this remarkable North / South symmetry; that deserves reflection. : Idea:

We can think that it is the air currents which homogenize pollutants on a global scale much faster than the local emission / absorption power of plants. :?:

Otherwise, for methane, I still don't quite understand. Thank you Delnoram for your link! Why these methane peaks in summer? Would heat favor the emission of CH4? Because CH4 is very little rejected by humans, and in regular quantities (mainly cows that fart and roam ...)

Or it would be the marshes which degas under the effect of drought :?: :|

@+

Christophe wrote:Yes I think the same: + heat = + biological activity = + methane (and CO2 but compensated by the capatage of plants apparently).

For CO2 it is also in winter that the most CO2 is rejected (heating and greater electrical need of non-nuclear power plants ...) ...

Otherwise there is still a very fishy thing: aren't the north-south seasons supposed to be reversed? So if there was an influence of the vegetation it should be seen right?
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by Remundo » 25/03/08, 10:08

Mmmmm ... I think I found ...

The impressive concentration of CH4 could result from the heat stored by the ocean ...

In fact, methane hydrates from the bottom of the ocean are only stable at high pressure and low temperature.

The summer heat stroke may have an influence in destabilizing the upper chouches of (CH4; H20); CH4 would then degrade in the atmosphere, the concentration drops in winter.

In any case, if this hypothesis proves to be correct, it is cold in the back because we would be on the verge of runaway climate. The release of methane is a positive feedback phenomenon. The more it comes out, the more it comes out again ... : Cry:
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Re: Terrestrial animation of CO2 and meth greenhouse gases




by martien007 » 25/03/08, 12:10

Christophe wrote:
First animations on greenhouse gases

Exploiting the result of three years of observations carried out by the Sciamachy instrument on board ESA's Envisat satellite, scientists produced the very first films illustrating the global distribution of the main greenhouse gases - carbon dioxide and methane - which participate in global warming.

The importance of reducing emissions from these “anthropogenic” gases, that is to say of human origin, was recently underlined by the firm commitment of European Union leaders to reduce, by 2020 , greenhouse gas emissions of at least 20% over 1990 levels. Another illustration of the urgency of the fight against global warming is Britain's proposal last week to the implementation of legislation to reduce emissions of these gases.
Close monitoring is essential to ensure that these objectives are met, and space instruments are used today for this purpose. The Sciamachy (Scanning Imaging Absorption Spectrometer for Atmospheric Chartography) instrument, for example, is the first space sensor capable of measuring major greenhouse gases with high sensitivity up to the surface of the Earth, via an observation at the "nadir" of the spectrum of sunlight passing through the atmosphere.


Read more: http://www.esa.int/esaCP/SEMLGWS4LZE_France_0.html

CO2:
Image

CH4:
Image

explanations: http://www.esa.int/esaCP/SEMLGWS4LZE_Fr ... l#subhead1


This is what I see from my home.

For methane, I heard from your radios and saw on your televisions, that methane comes from your ruminant animals which are very numerous on your planet: you drink the milk and especially you eat their meat, which you could do without because in the food chain, you can find the elements (vegetable proteins) in plants like soybeans (your masters have invented a new type of GMO to reduce your population by causing cancer?). It is therefore recommended for your planet to eat little meat, it also avoids intensive battery farming : Evil: .

Methane also comes from the melting of permafrost (a layer several meters thick frozen in the North of your globe and which is thawing with warming). The explorer Nicolas Vannier with his dogs and his sleigh crossed the tundra between Lake Baikal and Moscow; he could see that the trees collapsed like mikados following the melting of this permafrost. The Inuit are forced to move their villages because the ground is hiding under their feet.

With us, we say that your warming is more linked to the concentration of methane than to that of CO2 (which is reabsorbed by plants - photosynthesis - and the oceans - large CO2 concentrators.

Perhaps you are going wrong by trying to reduce your CO2 emissions at all costs, even neglecting the emission of other pollutants that will kill you slowly by cancers, in particular your wheeled vessels that send smoke by a hose located at the rear, which does not kill the driver on the 1st trip.

Your specialist JM Jancovici has very good explanations of these phenomena and mainly of the cycle of absorption of CO2 by the oceans in great depths on his site www.manicore.com
Last edited by martien007 the 25 / 03 / 08, 12: 37, 1 edited once.
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