Sentences with phrase «atmospheric radiation absorbed»

This means that the atmospheric radiation absorbed by the surface comes from a range of heights, with an average around 100m.

Not exact matches

Darin Toohey, a professor at the University of Colorado's atmospheric and oceanic sciences department and one of the paper's authors, says black carbon absorbs shortwave radiation from the sun, causing the atmosphere to heat up.

«Volcanic aerosols in the stratosphere absorb infrared radiation, thereby heating up the stratosphere, and changing the wind conditions subsequently,» said Dr. Matthew Toohey, atmospheric scientist at GEOMAR Helmholtz Centre for Ocean Research Kiel.

Tinetti says the earlier studies could be a product of the planets» bright sides cooking to the same temperature throughout, which makes atmospheric molecules less likely to absorb radiation from below.

Instead of dissipating into space, the infrared radiation that is absorbed by atmospheric water vapor or carbon dioxide produces heating, which in turn makes the earths surface warmer.

Because the vast plateau at such altitudes absorbs a huge amount of solar radiation, the atmospheric layer above it in summer is much warmer than air at similar elevations over lower land or the oceans.

These components — specifically aerosols (particulates in the air — dust, soot, sulphates, nitrates, pollen etc.) and atmospheric chemistry (ozone, methane)-- are both affected by climate and affect climate, since aerosols and ozone can interact, absorb, reflect or scatter solar and thermal radiation.

Hypothesis A — Because the atmospheric radiation is completely absorbed in the first few microns it will cause evaporation of the surface layer, which takes away the energy from the back radiation as latent heat into the atmosphere.

The elevation of the atmospheric temperature is due to a shift in the radiative equilibrium, i.e. more back radiation absorbed by added gases, selective to IR radiation.

The haze reduced the seasonal average solar radiation absorbed by the equatorial Indian ocean by as much as 30 to 60 W m − 2 during September to November 1997, and increased the atmospheric solar heating by as much as 50 % to 100 % within the first 3 kilometers.

We know from direct measurement that there are atmospheric constituents that absorb thermal radiation.

If you are designing an atmospheric model with molecules that absorb or emit ir energy, N2 and O2 would not be modeled as absorbing or emitting ir energy through vibrational interactions with electromagnetic radiation.

where is the vertically integrated energy flux in the atmosphere, is the net radiative energy input to an atmospheric column (the difference between absorbed shortwave radiation and emitted longwave radiation), and is the oceanic energy uptake at the surface.

When an atmospheric molecule absorbs energy by conduction or radiation it vibrates faster thereby becoming warmer.

The net atmospheric energy input near the equator is the small residual (~ 20 W m2) of large cancellations between absorbed shortwave radiation (~ 320 W m2), emitted longwave radiation (~ 250 W m2), and oceanic energy uptake (~ 50 W m2).

«Carbon dioxide absorbs in the atmospheric «window» from 7 to 14 micrometers which transmits thermal radiation emitted by the earth's surface and lower atmosphere.

An international team of researchers report in Nature Communications that they made a computer model of the planet's atmospheric conditions: they included natural and human - triggered aerosols, volatile organic compounds, greenhouse gases and other factors that influence temperature, one of which is albedo: the scientist's word for the capacity of terrain to absorb or reflect solar radiation.

«It is possible that an increase in concentration of atmospheric gases which absorb the outgoing infrared radiation could result in a rise in average global temperature,» William McCollam, Jr., then president of EEI, admitted to Congress in 1989.

In 1928, George Simpson published a memoir on atmospheric radiation, which assumed water vapour was the only greenhouse gas, even though, as Richardson pointed out in a comment, there was evidence that even dry air absorbed infrared radiation.

Students know the different atmospheric gases that absorb the Earth's thermal radiation and the mechanism and significance of the greenhouse effect.

Earth's Greenhouse Effect is described as all about radiant effects: Wiki: «The greenhouse effect is a process by which thermal radiation from a planetary surface is absorbed by atmospheric greenhouse gases, and is re-radiated in all directions.

These so - called greenhouse gases absorb infrared radiation, emitted by the Earth's surface, the atmosphere and clouds, except in a transparent part of the spectrum called the «atmospheric window», as shown in Figure 1.2.

Conversely, as atmospheric concentrations of carbon dioxide, methane, chlorofluorocarbons, and other absorbing gases continue to increase, in large part owing to human activities, surface temperatures should rise because of the capacity of such gases to trap infrared radiation.

Traditional anthropogenic theory of currently observed global warming states that release of carbon dioxide into atmosphere (partially as a result of utilization of fossil fuels) leads to an increase in atmospheric temperature because the molecules of CO2 (and other greenhouse gases) absorb the infrared radiation from the Earth's surface.

And that to use it as an example or reason why we are thus NOT affecting the earth through a multi million year change in long lived atmospheric greenhouse gases — which absorb and re radiate thermal radiation, slowly increasing the energy balance of the earth — is irrational.

After the solar radiation gets absorbed the remaining free energy appears as such temperature differentials that can maintain atmospheric circulation.

Much of this IR is at wavelengths at which other atmospheric constituents do not interact, so if CO2 is exposed to a warmer surface like the earth, it will absorb radiation that would otherwise pass through into the cold of space AND likewise if CO2 is exposed to the cool of outer space it will emit vast quantities of IR at wavelengths which other gases can not emit.

Since atmospheric WV is expected to increase as a result of higher temperatures, the «WV - enhanced» greenhouse effect should cause some of the solar radiation that would otherwise reach the Earth's surface (in the absence of the enhanced GH effect) to be absorbed in the atmosphere, where that energy can perhaps be more easily lost to space (the complexity of the climate system permitting).

LW radiation from cooler atmospheric CO2 can not do this, so the radiation is either transmitted or reflected (and this can mean absorbed and re-emitted for no energy gain).

Since to me (and many scientists, although some wanted a lot more corroborative evidence, which they've also gotten) it makes absolutely no sense to presume that the earth would just go about its merry way and keep the climate nice and relatively stable for us (though this rare actual climate scientist pseudo skeptic seems to think it would, based upon some non scientific belief — see second half of this piece), when the earth changes climate easily as it is, climate is ultimately an expression of energy, it is stabilized (right now) by the oceans and ice sheets, and increasing the number of long term thermal radiation / heat energy absorbing and re radiating molecules to levels not seen on earth in several million years would add an enormous influx of energy to the lower atmosphere earth system, which would mildly warm the air and increasingly transfer energy to the earth over time, which in turn would start to alter those stabilizing systems (and which, with increasing ocean energy retention and accelerating polar ice sheet melting at both ends of the globe, is exactly what we've been seeing) and start to reinforce the same process until a new stases would be reached well after the atmospheric levels of ghg has stabilized.

«This H2O negative - feedback effect on CO2 is ignored in models that assume that warm moist air does not rise and form sunlight - reflecting clouds, but remains as humid air near sea level, absorbing infrared radiation from the sun, and approximately doubling the temperature rises predicted from atmospheric CO2 increases.

The researchers, led by Berkeley Lab scientists, measured atmospheric carbon dioxide's increasing capacity to absorb thermal radiation emitted from the Earth's surface over an eleven - year period at two locations in North America.

Because the atmospheric radiation is completely absorbed in the first few microns it will cause evaporation of the surface layer, which takes away the energy from the back radiation as latent heat into the atmosphere.

When he says 50 % of» back radiation» (atmospheric radiation) is absorbed in the first few microns (μm).

* 50 % of solar radiation is absorbed in the first meter, and 80 % within 10 meters * 50 % of» back radiation» (atmospheric radiation) is absorbed in the first few microns (μm).

Its obvious that much of the remaining solar radiation absorbed by atmospheric CO2 is quickly and efficiently used up by the planets biomass cycle.

Terrestrial radiation absorbed by CO2 is immediately thermalized, i.e. the radiant energy absorbed by CO2 molecules is immediately (about 0.1 nanosecond) transferred (in a process similar to thermal conduction) to other atmospheric molecules which outnumber CO2 molecules 2500 to 1.

The researchers, led by scientists from the US Department of Energy's Lawrence Berkeley National Laboratory (Berkeley Lab), measured atmospheric carbon dioxide's increasing capacity to absorb thermal radiation emitted from the Earth's surface over an eleven - year period at two locations in North America.

Yet before writing tha book, Sorenson decided to go ahead and publish his 2011 article because, as he says, «Eunice Foote deserves credit for being the first to recognize that certain atmospheric gases, such as carbon dioxide would absorb solar radiation and generate heat... [three] years before Tyndall's research that is conventionally credited with this discovery.»

-- And, furthermore — that if then those x units of energy are transported (by radiation) to atmospheric GHGs that eagerly consume or absorb them, those GHGs must warm.

This effective radiating level depends on atmospheric composition and, in particular, on those constituents that absorb terrestrial radiation.

Therefore I understand perfectly well that radiation from the surface can warm the atmospheric GHGs that absorb it.

The only way CO2 could absorb any more IR than it is already absorbing is if 1) the surface started re-emitting more IR, which could only happen if more sunlight reached the surface, or 2) atmospheric water vapor levels dropped, freeing up more IR to be absorbed by CO2, in which case, warming would not occur, because that radiation was already being absorbed by the water vapor that disappeared.

Our recent study has focused on a molecule's radiative efficiency within the atmospheric window region of the IR spectrum, which can be thought of as a molecule's inherent ability to absorb radiation in the atmospheric window.

But let's put these unconventional views aside for a moment, and accept that certain atmospheric gases (e.g., CO2, for one) DO absorb more heat radiation than their more neutral cohorts (e.g., nitrogen and oxygen mostly).

This just says that Solar radiation absorbed at the surface + downward atmospheric radiation = surface upward radiation + convection from the surface to the atmosphere.

The right side is total absorbed solar radiation — upward emitted atmospheric radiation.

The absorption interval of CO2 molecules covers less than 20 percent of the spectrum of thermal radiation of the Earth's surface, while atmospheric moisture absorbs thermal radiation rather uniformly over the entire spectrum.

It is the first time I've seen an explanation where the energy represented by the specific frequencies absorbed by GHG molecules are transferred to non-GHGs through collision (and then reemitted by the non-GHGs in the atmospheric windows — almost everyone believes the non-GHGs absorb and emit no IR radiation at all — some bad textbooks mis - educated everyone somewhere along the line).

It absorbs radiation and emits it, just like all other atmospheric gases do.