Sentences with phrase «cooling by radiation»

You are creating a non-representative condition by covering the surface of the pool with black balls, (and also interfering with surface cooling by radiation / evaporation) and... 1) That is also creating an overrepresentation of CO2.

All the cooling by radiation and non-radiative processes (unaffected by back radiation) slows down and possibly stops in calm conditions in the early pre-dawn hours because the gravito - thermal effect is maintaining the supporting temperature.

Because the polar Temperatures are so low, the cooling by radiation is very much slower than in the tropics, since the radiation goes at T ^ 4.

The water runs down the roof cooling by radiation to the night sky.

But convection is less and less efficient when pressure decreases, while cooling by radiation is more and more efficient.

Atoms are slowed and cooled by radiation pressure from laser light and then trapped in a bottle whose walls are magnetic fields.

So, the THC reduces, the North Sea cools by radiation and ice reflection increases.

Yes the water can cool by radiation as well, but nothing undergoes a Temperature increase in the process.

The radiatively active gases (H2O, CO2) on the other hand are like the holes (or opened windows) on a greenhouse, enabling the atmosphere to cool by radiation to space.

Second, the ocean absorbs CO2 on average all across the lower density surface as the waters cool by radiation to space on their return to the poles.

The air next to the ground at night will cool by conduction but a reverse convection will not take place (the ground cools by radiation loss).

The earth then loses heat --(cools by radiation).

4) Staying in the upper troposphere the air cools by radiation to the space.

Not exact matches

Since then, the Steady State Theory has been disproven, and the Big Bang Theory has been shown to be correct, vindicating a form of «Creationism», which not only explains «let there be light» (the early universe was dominated by radiation — light), but explains of separation of light and darkness — the decoupling era, about 300,000 earth years after the big bang, when the universe cooled below the ionization energy of hydrogen, allowing it to become transparent for the first time.

Asteroid surfaces heat up during the day (as illustrated by this image) and cool down at night, giving off radiation that can act as a sort of mini-thruster.

«When biogenic VOCs are oxidized, they give rise to aerosol particles that cool the climate by reflecting part of the Sun's radiation back into space,» Artaxo said.

The study found that after the initial decrease of solar radiation in 2020, globally averaged surface air temperature cooled by up to several tenths of a degree Celsius.

A disk of gas and dust drawn in by the black hole pours x-rays and ultraviolet radiation outward, where they strike a cooler layer of material, the torus, making it glow in the infrared.

It does this by intercepting radiation from the leaf's interior and evaporating water — not unlike the cooling systems in our everyday electronics.

The cooling mechanism involves the absorption of heat by the haze particles, which then emit infrared radiation, cooling the atmosphere by radiating energy into space.

Storm clouds play a big role in keeping the planet cool by reflecting heat back into space — but they're not as effective farther north or south, where there's less solar radiation anyway.

Such clouds show a strong increase in cooling due to the reflected short waves, but that effect is partly cancelled out by the enhanced, trapped, long - wave radiation coming from underneath.

Like polarized light (which vibrates in one direction and is produced by the scattering of visible light off the surface of the ocean, for example), the polarized «B - mode» microwaves the scientists discovered were produced when CMB radiation from the early universe scattered off electrons 380,000 years after the Big Bang, when the cosmos cooled enough to allow protons and electrons to combine into atoms.

Ehrenreich and his team think that such a huge cloud of gas can exist around this planet because the cloud is not rapidly heated and swept away by the radiation pressure from the relatively cool red dwarf star.

By adding a specially patterned layer of silica glass to the surface of ordinary solar cells, a team of researchers led by Shanhui Fan, an electrical engineering professor at Stanford University in California has found a way to let solar cells cool themselves by shepherding away unwanted thermal radiatioBy adding a specially patterned layer of silica glass to the surface of ordinary solar cells, a team of researchers led by Shanhui Fan, an electrical engineering professor at Stanford University in California has found a way to let solar cells cool themselves by shepherding away unwanted thermal radiatioby Shanhui Fan, an electrical engineering professor at Stanford University in California has found a way to let solar cells cool themselves by shepherding away unwanted thermal radiatioby shepherding away unwanted thermal radiation.

Good arguments exist that the central regions should collapse first, producing a condensed protostar whose contraction is halted by the large buildup of thermal pressure when radiation can no longer escape from the interior to keep the (now opaque) body relatively cool.

While optical instruments can detect the dust when it obscures more distant objects or when it is illuminated by very nearby stars, infrared telescopes are able to register the long - wavelength radiation that the cool dust clouds themselves emit.

Solar radiation management encompasses techniques intended to cool the Earth's surface by reflecting incoming sunlight.

So I agree with William, the cooling effect at the top of the atmosphere requires that the atmosphere be absorbing some incoming radiation (and that this absorption be (mostly) by non-greenhouse gasses).

Isn't one important feature of cooling the stratosphere by emitting heat absorbed by ozone from incoming shortwave radiation, that this cooling has little effect on lower parts of the atmosphere since there is not much mixing between these air masses?

Absorption of thermal radiation cools the thermal spectra of the earth as seen from space, radiation emitted by de-excitation is what results in the further warming of the surface, and the surface continues to warm until the rate at which energy is radiated from the earth's climate system (given the increased opacity of the atmosphere to longwave radiation) is equal to the rate at which energy enters it.

The current in the lamp will drop slightly, wich means that white hot tungsten wire is heated up still a few degrees by «back radiation» from a quite cooler place and because that metal wire is a NTC - resistor or «Ein Kalt - leiter».

As far as I know, if the only physical mechanism under consideration is the radiative cooling of the planet's surface (which was heated by shortwave solar radiation and reradiated at longer wavelengths in the infrared) via radiative transport, additional gas of any kind can only result in a higher equilibrium temperature.

I believe that cooling by adding trace amounts of a gas to an atmosphere is physically impossible under the assumption that only radiation physics is responsible for heat transport which is what the guy was arguing.

ie does a slightly lower density of air mean a slightly lower ground level temperature (temperature normally decreases with height at the lower air density), so that in reality adding CO2 and subtracting more O2 actually causes miniscule or trivial global COOLING, and the (unused) ability of the changed atmosphere to absorb radiation energy and transmit it to the rest of the air is overruled or limited by the ideal gas law?

If the oceans aren't «warmed» by LW radiation then how come they are not significantly cooler than we see, closer to the -18 C of a non ghg world?

Absorption of solar radiation by CO2 is minimal, and increasing CO2 should not change it in a way to mediate cooling.

Also, why not to simply say that: Unlike major gases of the atmosphere, GHG (mainly water vapor) are heated by IR radiations and cool by IR emission and / or by convection.

It also may impact the planet's radiation balance - largely by changing cloudiness - I have no idea whether this effect would warm or cool, that would require detailed modeling.

The increase / decrease of net upward LW flux going from one level to a higher level equals the net cooling / heating of that layer by LW radiation — in equilibrium this must be balanaced by solar heating / cooling + convective / conductive heating / cooling, and those are related to flux variation in height in the same way.

Some of that heat flows to the surface by LW radiation, reducing the net radiant cooling of the surface.

The effect where, adding a «new» absorption band and increasing the absorption, there may initially be warming of the colder layers, etc, followed by a stage of upper level or near - TOA cooling — this includes the warming from absorption from increased radiation from the surface + troposphere — which will be greater when more of the spectrum, especially near wavelengths where the emitted spectral flux change is greatest, has a greater amount of absorption.

By absorbing radiation from below; but it would radiate both upward and downward, thus making the layer cooler; but if it is optically thick, it could make the lower part warmer.

Starting with small amounts of absorption, the transient cooling should extend through most of the atmosphere (except the troposphere) because each layer's emission and absorption of radiation from the surface would increase equally if not for the increased absorption of radiation from the surface by lower layers, while the increased absorption of radiation from other layers would be a smaller effect due to the small emissivities — this would be true in the troposphere as well except the convective coupling with the surface would prevent it.

Forcing by heat conduction will certainly cause something to warm up.if there is a thermal gradient (potential difference) but only if the thing being warmed up is at the cooler end of the gradient in terms of radiation or heat (the «positive flow of energy»).

Therefore the air coming south must be cooled, primarilly by radiation to space.

The radiation to space is made less efficient by the existence of a warm stratosphere above the air, generating IR radiation from above, and limiting the net cooling of the upper troposphere.

This will clear up any confusion about non-greenhouse gases not being able to emit and absorb thermal radiation i.e. the mistaken notion that an atmosphere without greenhouse gases would not be able to cool itself by thermal radiation.

Net back radiation cools the ocean, on a global average by 66 watts per square meter.

It's because both land and ocean surfaces are heated by shortwave solar radiation and where aerosols reflect SWR equally well over land or water and where greenhouse gases work by retarding the rate of radiative cooling which is not equal over land and water.