Sentences with phrase «absorption by radiation»

(& we have assumed that the energy - in flux is constant) If the new GHG temperature is the same or higher than the air temp, then there will be NO energy absorption by radiation by the new GHGs or any other air or GHG molecules.

Any absorption by radiation would result in the gases getting warmer than their equilibrium temperature.

Not exact matches

Referred to as the Specific Absorption Rate (SAR), this value is a measure of the amount of radiation absorbed by the body when a device is at its maximum power.

This calculation method enabled us to more accurately perform theoretical prediction of IMFP compared to the experimental value, which was obtained by applying spectrometry (extended X ‐ ray absorption fine structure spectrometry) to low - speed electrons of Copper and molybdenum at the high - brilliant synchrotron radiation facility, and to explain the relationship between energy measurement and the types of materials.

Secondly, the design leads to small — aperture vacuum chambers that result in low vacuum conductance and the need for distributed pumping as well as for the distributed absorption of heat deposited by the synchrotron radiation.

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.

There are contributions from interstellar matter, from the three - degree - Kelvin background radiation left over from the early history of the universe, from noise that is fundamentally associated with the operation of any detector and from the absorption of radiation by the earth's atmosphere.

In terms of the foreseeable technological developments on the earth, the cost per photon and the amount of absorption of radiation by interstellar gas and dust, radio waves seem to be the most efficient and economical method of interstellar communication.

Obviously CO2 is not just a lid on the atmosphere so there must be some effect of the vertical gradient (even if small), and since it depends on the absorption and reemission of radiation, there must be some effect by latitude.

DefenderShield Phone Case — Independently tested by the FCC, this phone case uses conductive, non-conductive and advanced absorption shielding materials together to block, divert, and absorb EMFs, Radio Frequency (RF) and heat radiation.

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).

My own prediction is that, as temperatures fail to increase over the next five years, attention will turn to Ray Ladbury's «bite» — the resonant absorption of outgoing radiation by CO2 and H2O in the radiation spectrum viewed from space.

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.

A simple example is the radiation code — instead of using a line - by - line code which would resolve the absorption at over 10,000 individual wavelengths, a GCM generally uses a broad - band approximation (with 30 to 50 bands) which gives very close to the same results as a full calculation.

As the radiation in that particular wavelength band is used up, the amount left for absorption by more of the gas is reduced.

The CO2 doesn't alter climate by affecting thermal mass; it affects climate by retarding the efficiency of infrared radiation, and it has important IR absorption bands in places where water is ineffective.

The point is that although selection rules will determine whether a molecular vibration can absorb IR radiation, and is obviously necessary for a complete discussion of the issue, the issue can be simply addressed by consideration of the frequencies of absorption by the gas and emission by the planet.

Spectroscopy, selective absorption & radiation of energy by certain elements 3.

Interestingly, the O2 molecule's absorption in the near - infrared, ~ 1 micron, is forbidden — it's a very weak absorption (that actually might affect the absorption of solar radiation by a small amount).

A corollary of what he is saying is that the sea is basically heated by visible light absorption rather than by heat radiation and is pretty impervious to global warming!

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

Re 4 «A corollary of what he is saying is that the sea is basically heated by visible light absorption rather than by heat radiation and is pretty impervious to global warming!»

In both cases the air is warmed by the absorption of IR radiation by greenhouse gases.

Refraction, specifically the real component of refraction n (describes bending of rays, wavelength changes relative to a vacuum, affects blackbody fluxes and intensities — as opposed to the imaginary component, which is related to absorption and emission) is relatively unimportant to shaping radiant fluxes through the atmosphere on Earth (except on the small scale processes where it (along with difraction, reflection) gives rise to scattering, particularly of solar radiation — in that case, the effect on the larger scale can be described by scattering properties, the emergent behavior).

Interestingly, in that situation, the non-CO2 absorption within that layer would itself be making the layer warmer than otherwise by absorbing more radiation than it emits.

«how can a forcing driven by longwave absorption and emission impact the ocean below since the infrared radiation does not penetrate more than a few micrometers into the ocean?»

However, some have insisted that there is a paradox here — how can a forcing driven by longwave absorption and emission impact the ocean below since the infrared radiation does not penetrate more than a few micrometers into the ocean?

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.

In the stratosphere, it from solar and LW absorption by ozone, and a small amount from water vapour, but what ever the temperature is, there is radiation from the CO2.

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.

Obviously CO2 is not just a lid on the atmosphere so there must be some effect of the vertical gradient (even if small), and since it depends on the absorption and reemission of radiation, there must be some effect by latitude.

Moreover, the atmospheric temperature gradient is mitigated by the absorption of solar radiation within the atmosphere (also latent heat deposition), thus a more moderate temperature gradient is established within the ral atmosphere.

Recent accurate laboratory measurements of the absorption in the CO2 band by CLOUD (1952) were used to calculate the radiation flux in the atmosphere with the aid of the MIDAC high speed digital computor.»

Heating of the thermosphere is due to absorption of highly energetic solar radiation by the small amount of residual molecular oxygen still present, and temperatures can rise to 2,000 deg.

This deals with absorption of solar radiation by H2O and CO2.

Arctic albedo / sea ice extents are also falsified by the (lack of) absorption of the radiation at low angles of incidence.

The Greenhouse Effect refers to the absorption and re-radiation of IR thermal radiation by molecules including CO2, methane, water vapor, fluorocarbons, nitrous oxides, and SF6.

We all have been told that the greenhouse effect is due to the absorption of outgoing infrared radiation by greenhouse gases such as carbon dioxide in the atmosphere.

Absorption in the atmosphere of solar radiation by CO2 doesn't buy you any reduction in the radiative forcing which is conventionally applied to the whole atmosphere and surface.

Check out the Schwarzschild equation so you understand out to properly calculate both absorption and emission of thermal radiation by CO2.

I admit I was wrong about the magnitude of the increase in absorption of incident solar radiation by increased CO2.

Tyndall, 1861: On the Absorption and radiation of Heat by Gases and Vapours, and on the Physical Connexion of Radiation, Absorption, and Conduction

The principles of absorption and emission of radiation by various atmospheric trace gases like water vapor and CO2 rely on the theory of quantum mechanics.

Using NOAA database of weather balloon observations that goes back to 1948 he studied the absorption of infrared radiation by the atmosphere over time.

The physics of absorption and re-emission of infra - red radiation by CO2 is equally well - known.

He used NOAA weather balloon database that goes back to 1948 to study the absorption of infrared radiation by the atmosphere over time.

He was interested in the absorption of infrared radiation by the atmosphere over time and discovered that absorption had been constant during the previous 61 years.

What difference between energy absorption and radiation do we need to induce in order to make the air temperature increase by 1 degree C, assuming no change in albedo?

This can be affected by warming temperatures, but also by changes in snowfall, increases in solar radiation absorption due to a decrease in cloud cover, and increases in the water vapor content of air near the earth's surface.2, 14,15,16,17 In Cordillera Blanca, Peru, for example, one study of glacier retreat between 1930 and 1950 linked the retreat to a decline in cloud cover and precipitation.18

However I have to agree that the demonstration is nowhere near quantitative enough to infer much about absorption by CO2 of thermal radiation from Earth's surface.