Sentences with phrase «in upper atmosphere»

The protective role of the ozone layer in the upper atmosphere is so vital that scientists believe life on land probably would not have evolved - and could not exist today - without it.

Doing it so as to maximise the amount of smoke and vaporised rock in the upper atmosphere could make the weather cooler for a year or two.

etudiant says: February 28, 2011 at 2:18 pm Relative humidity in the upper atmosphere (300mb level) has fallen from around 55 % in 1950 to about 45 % now.

Increased CO2 in the upper atmosphere increases global cooling, obviously, BECAUSE, it increases (the planet's ability to loose, or rather emit) radiation of energy to space.

This seems to show that, especially in the upper atmosphere.

Oxygen is produced on a net basis by photodissociation of water in the upper atmosphere coupled with hydrogen loss.

I've wondered if the HAARP system had some way to prime a pump just to get CO2 in the upper atmosphere more likely to radiate in the infrared; the notion of tickling it so it will actually depart the planet seems like a lovely one, if there's any substance to it.

Stu Yes 14C is present in very small amounts in living biota — being produced in the upper atmosphere when a neutron and 14N combine to produce 1H and the unstable isotope 14C.

But carbon 14 also forms high in the upper atmosphere, where cosmic ray bombardment occurs.

Judith Curry: The polar vortex is a circulation pattern in the upper atmosphere that influences surface weather.

But water vapour is declining in the upper atmosphere, the opposite of model predictions, just were it has a very large effect on OLR.

«Our own UAH measurement of a 0.1 degree Celsius increase per decade in the upper atmosphere was actually the warmest of all the datasets.»

Consequently, the reduction in water vapour in the upper atmosphere offsets both the increase in CO2 and the increase in water vapour near the surface.

This paper also says «Here, we present direct evidence that CO2 concentrations in the upper atmosphere — probably the primary driver of long - term thermospheric trends — are increasing.

During hot, humid summer weather, many urban areas experience heat inversions — cold air in the upper atmosphere holds much warmer air close to the ground, sustaining higher - than - average temperatures and trapping smog.

About «nuclear winter», is it foolish to think that aerosols released from nuclear testing in upper atmosphere have contributed to the cooling phase 1950 - 70?

Moreover, in the upper atmosphere where the lines are separated there is little absorption because of that.If you want the real story about the problem with Arrhenius's model read this poster.

Ozone is best known for its presence — or in fact for its seasonal absence — in the upper atmosphere.

Your argument based on lapse rate is only valid to the top of the middle atmosphere and falls apart in the upper atmosphere where temperature increases with altitude.

If you increase [CO2], [H2O] ust decrease in the upper atmosphere, as observed in 61 years» radiosonde data.

(which you get back in the upper atmosphere, but that's another subject).

Knowing the different formation mechanisms will help scientists predict the amount of water vapor in the upper atmosphere, which affects the balance of warming and cooling that determines the Earth's climate change.

In the upper atmosphere the molecules have so much space to move (low density environment) that collisions are much less probable and therefore expansion much less likely.

Hence temperatures will be less hot — relative to normal — in the upper atmosphere at a given altitude than they will be at the surface.

Possibly also the number of chemical reactions in the upper atmosphere increases due to the increased solar effects with faster destruction of ozone.

Ozone absorbs strongly in the whole UV region and the sun's intensity is high here so more ozone will cause significantly more sunlight to be deflected (cooling more apparent in the upper atmosphere?).

Mesosphere: REVIEW OF MESOSPHERIC TEMPERATURE TRENDS G. Beig, et al. [1] In recent times it has become increasingly clear that releases of trace gases from human activity have a potential for causing change in the upper atmosphere.

The weather on planet Earth exhibits a considerable degree of random variation, and sometimes the sequence of ridges and troughs in the upper atmosphere just so happens to line up in a very similar configuration for weeks (or even months) on end.

It would involve gradually eliminating pollution from factories and tailpipes; replacing them with artificial aerosols in the upper atmosphere where they're much less likely to damage human health; and then hope nothing (else) goes seriously awry.

Much of the Central and Eastern United States experienced record warmth for mid-October due to heat and humidity associated with an expansive high pressure weather system that stretched from Bermuda over the eastern US as well as from winds in the upper atmosphere that drew heat up from the South.

My understanding was that central physical dynamic of concern both in the paleoclimatic record and wrt to the theory of AGW is the radiative properties of GHGs in the upper atmosphere.

For example, if changes in temperature relate linearly to changes in green house gas concentrations in the upper atmosphere, that yields a diminishing marginal impact on temperature of increased concentrations due to the logarithmic forcing of GHGs.

Radiative forcing is a multiplier that is added to the carbon emissions factor, that quantifies these additional effects; including the fact that emitting GHGs in the upper atmosphere has a greater heat - trapping effect than emitting GHGs at ground level.

Stratospheric aerosols — small air - borne particles in the upper atmosphere — play an important role in Earth's climate.

Arrival at this terminal state required passing through a «moist greenhouse» state in which surface water evaporates, water vapour becomes a major constituent of the atmosphere and H2O is dissociated in the upper atmosphere with the hydrogen slowly escaping to space [106].

Could someone explain how warming in the upper atmosphere can travel through 100's of mile of below freezing atmosphere not warmed it at all and make the ground warmer.

For example, a reasonable answer to global warming might be putting dust bags on all our aircraft, so that we can get more dust in the upper atmosphere.

It's a problem for the climate because the black soot particles are just the right color to absorb heat from the sun, either in the upper atmosphere or when it settles back down to earth on Arctic snow and ice (when soot - free, the polar ice caps reflect a tremendous amount of light and heat back into Space, helping keep the planet cool).

Water vapor in the upper atmosphere plays an important role in Earth's climate.

Polar vortices are technically in the upper atmosphere — but there are related circumpolar winds at the surface that are more to the point.

Pat wrote: «But TOA radiative loss can just as easily be through the latent heat of water vapor condensation in the upper atmosphere.

Long term conditions such as warmer - than - average sea - surface temperatures and low wind shear in the upper atmosphere are among the factors expected to fuel activity in coming years, forecasters say.

Note also a suggestion that the «North Atlantic Oscillation» was driven by changes in upper atmosphere wind patterns around the entire hemisphere, Wallace and Thompson (2002).

While the polar and subtropical jet streams are the best known and most studied, other jet streams can form when wind speeds are above 58 mph (93.3 kph) in the upper atmosphere at about 6 miles (9.6 kilometers) to 9 miles (14.5 kilometers) above the surface.

Air from the Pacific is picked up and transported by the northern hemisphere jet stream — a fast flowing, narrow air current in the upper atmosphere.

It will absorb all the CO2 that is delivered to it by jet streams in the upper atmosphere.

Tendrils of condensation that mark the paths of high - flying jets sometimes form a loose lacework of man - made clouds in the upper atmosphere.

By the way, water is the only molecule in the upper atmosphere of significant quantity to radiate the balance of IR beyond the minor CO2 radiation plus the IR window radiation and as such is the primary earth cooling agent (including cloud reflection) and thus is a negative feedback to any actual changes in solar input energy.

RokShox says: October 24, 2013 at 12:31 pm «The climate model assumes that water vapor, the most important greenhouse gas, would increase in the upper atmosphere in response to the small warming effect from CO2 emissions.»

The humidity in the upper atmosphere, above most clouds is controlled by other processes that are not resolved by climate models.