Sentences with phrase «opaque atmosphere»

Only if all the layers of the CO2 opaque atmosphere had the same temperature as the surface would the back radiation to the surface in the CO2 bands be the same as the upwelling radiation from the surface in those same bands.

As already said, the radiative heat transfer surface to air is the radiation of the surface absorbed by the air minus the radiation of the air absorbed by the surface: it would be exactly zero for an isothermal atmosphere and is nearly zero for an opaque atmosphere (figure 6 - A).

Optical depth is a measure of how opaque the atmosphere is to long - wave radiation, and so is a measure of the strength of the greenhouse effect.

One is to acknowledge that calculation of radiation transport through a partially opaque atmosphere is one of those problems that seems easy until you try to write down the equations, and then you find it's a monster — the great mathematical physicist S. Chandrasekhar spent years working on it and wrote a book full of equations on stellar atmospheres that I think hardly anyone in atmospheric physics even tries to read.

If one could see the IR light, an opaque atmosphere would make the pattern of emitted IR diffuse since only the IR from the upper levels of the atmosphere escape to space after it has been absorbed and re-emitted by the greenhouse gases (this of course depends on the wavelength of the IR and the absorption spectrum, but we can use this assumption for heat loss integrated over the whole IR spectrum).

The moon's opaque atmosphere hides a fascinating surface that is rich in methane lakes, water ice, and organic compounds.

It would have to contend with the opaque atmosphere while looking for a safe place to touch down.

Bigger than the planet Mercury, it has a thick, opaque atmosphere; complex weather; and lakes of liquid natural gas.

A uniquely dense and opaque atmosphere obscures Titan's surface, which may be partially paved with ice, dotted with liquid seas, or spiked with volcanoes.

Nitrogen is the primary component of Titan's opaque atmosphere, which may be like that of the infant Earth but with a pressure 50 percent greater than Earth's today.

And they unveil the roots of the planet's storms, what lies beneath the opaque atmosphere and a striking geometric layout of cyclones parked around the gas giant's north and south poles.

Not exact matches

Because the earth's atmosphere is essentially opaque to X rays from space, instruments are placed above most of the atmosphere by means of Aerobee rockets fired from the White Sands Proving Ground in New Mexico.»

Saturn's moon Titan may have intriguing hydrocarbon lakes underneath its opaque nitrogen atmosphere.

During a transit, light from a host star filters through the atmosphere of an exoplanet before being eclipsed by the planet's opaque bulk.

Its thick, opaque orange atmosphere rains liquid methane, which flows into lakes on the surface.

Entering orbit around the ringed world, the spacecraft will drop a probe into the atmosphere of Titan, a Mercury - size moon cloaked in an opaque organic haze and possibly covered with hydrocarbon seas.

«The X-ray data suggest there are extended layers of the planet's atmosphere that are transparent to optical light but opaque to X-rays,» said co-author Jurgen Schmitt of Hamburger Sternwarte in Hamburg, Germany.

These so - called starbursts are difficult to observe from Earth, as their dusty shrouds absorb much of the optical light from the stars and re-radiate it as longer - wavelength radiation to which Earth's atmosphere is mostly opaque.

According to the experiments of Langley, the carbon dioxide and the water vapor, which the atmosphere contains, are more opaque to the heat rays of great wave lengths which are emitted by the earth, than to the waves of various lengths which emanate from the sun.

Now if we add water vapor to the atmosphere it increases the greenhouse effect in the spectral regions that are not saturated not opaque, which means in the atmospheric window.

Their observations revealed that GJ 1132b appeared to be larger in one of the seven wavelength bands used to monitor it, which indicates the likely presence of an atmosphere that is opaque to that specific wavelength but which appears to be transparent in all other forms of light.

But greenhouse gases are a part of the atmosphere and render it opaque to thermal radiation — which means that some will be downwelling.

These brightly coloured facades tower over the visitors, but as the material of the prints is almost opaque, this lends a dreamlike quality to the space, rather than a domineering atmosphere.

In both videos, as speakers engage with technical processes and bureaucratic systems, human vulnerability is gently drawn out, suffusing the works with an atmosphere of existential comedy, wrought from a present governed by opaque systems of control.

Her images are impressionistic, a thin veil of atmosphere gives them a slightly opaque quality: you sense uneasiness and suffering.

NY Times February 15, 2008 «NINA IN POSITION» By HOLLAND COTTER «NINA IN POSITION» Maybe as fallout from last summer's liberatingly eccentric Documenta 12, we've seen a handful of intriguing and enigmatic group shows in New York this season, spun around opaque themes and designed to generate psychic atmosphere.

In her large, multi-media works, vivid spray - painted, translucent atmospheres are contrasted with opaque, hand - painted geometric areas reminiscent of pointillism or pixelation, a juxtaposition that creates significant spatial depth Recent works such as «Gray Matter» (2017) inhabit an intersection between the theatrical baroque and the graphic specificity of stained glass, which is accentuated a dynamic sense of movement, swirling spirals, upward diagonals, and heavy impasto.

Because CO2 makes the atmosphere more opaque to infrared radiation, and because the atmosphere gets colder as you get higher, the «effective radiation temperature» of the infrared radiation leaving the earth is made colder by increasing CO2 (fewer Watts per square meter of infrared radiation leave the top of the atmosphere).

CO2 (and some other gases) in the atmosphere are however more opaque to LWIR; they absorb that a chunk of that outgoing radiation and re-radiate it in all directions — so that a fraction less than half is re-radiated downwards; which has the effect of slowing the transfer of heat (by radiation) out of the atmosphere.

Consider a somewhat extreme example where half of the spectral outgoing LW flux is within the window region (emitted by the ground surface), with the other half being emitted within the radiatively opaque part of the spectrum from regions high near the top of atmosphere.

Moreover, an observer in space can not see the infra - red light from as deep levels as before because the atmosphere has become more opaque.

Then, if the atmosphere were to consist of opaque isothermal layers, each layer of the atmosphere (as in the above example) would be colder by 0.84 than the layer below, thus establishing a decreasing temperature trend with height.

In the wavelengths where the atmosphere is opaque, the radiation field is almost isotropic, because photons are constantly absorbed and reemitted.

At wavelengths shorter than about 300 nm, there is a relatively large variation in the Sun's extreme UV and x-ray output (greater than 1 %), but the Earth's atmosphere is nearly opaque at those wavelengths.

And, it is well to remember that astronomy — any science at all for that matter — can hardly occur in a cloudy opaque fatal atmosphere like Venus, Jupiter or Saturn.)

While the atmosphere is opaque at certain frequencies the energy absorbed is shared with the other gases in the atmosphere through collision this will warm the atmosphere more than it would be through conduction and convection alone.

... and then there's dribbling... ----- see if this helps ----- «until a certain height, the atmosphere is opaque (you can't see through it) to IR radiation.

If the atmosphere of Venus became truly opaque to incoming solar radiation at some altitude above the surface, the atmosphere below that point would be isothermal assuming no heat input to the surface from the core of the planet.

More GH gases makes the atmosphere more opaque and so the troposhere thickens.

The greenhouse theory in its simplest form is that the atmosphere is opaque to infrared radiation.

I agree with a lot of your assertions, e.g. the practical irrelevance of the adiabatic and hence essentially reversible ALR — the only mechanism that actually cools the atmosphere (permanently removes heat from it) is radiation, and that occurs in the upper troposphere where the atmosphere ceases to be opaque to e.g. LWIR (although it is more complex than this, this process occurs in depth and at different depths in different frequencies).

The GHGs mean that the atmosphere is essentially opaque to outgoing long - wavelength radiation (approximatelt) and there is a height in the troposphere at which we effectively emit as a blackbody with a temperature of 255 K.

Because the atmosphere is semi opaque to IR this corresponds to the temperature of approx 6000 metres high, essentially the top of the troposphere, given the measured lapse rate of about 6degC / 1000m..

eg, once the atmosphere is opaque to IR it does not matter how much more opaque you make it.

To LW radiation, the atmosphere is opaque.

For reasons unknown to this day, it sank a bit in the atmosphere, and opaque clouds covered it up.

The atmosphere is essentially opaque to the Sun's radiation in the absorption bands of CO2, with an atmospheric CO2 concentration of approximately 200 ppmv.

Fortunately, the atmosphere is opaque to almost all solar radiation in the UV, shielding the biosphere from these potentially harmful rays.

If the atmosphere of Venus were perfectly opaque then it would be isothermal.

But the Venusian atmosphere isn't perfectly opaque, neither is the ocean.