Sentences with phrase «when absorbed radiation»

The energy enters these water bodies at the surface when absorbed radiation is converted into heat energy.

Not exact matches

When a unit of electromagnetic radiation such as a microwave hits an electron, it absorbs it and changes position.

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.

When these gamma rays reach the Earth's atmosphere they are absorbed, producing a short - lived shower of secondary particles that emit weak flashes of bluish light known as Cherenkov radiation, lasting just a few billionths of a second.

Our eyes can not see infrared radiation but we can feel how our skin absorbs it when we are standing next to a hot object without touching it.

The clumped matter absorbs less radiation than when it floated freely in space.

When x-rays go through an object, some of the radiations will be absorbed, some will be transmitted, and the last part will be scattered in different positions because of the interaction with atoms in the object.

When we lost our fur, the sun's ultraviolet rays damaged our newly exposed skin, which reacted by producing melanin, a pigment that absorbs the sun's solar radiation, explain anthropologists at Penn State.

A: Global warming occurs when carbon dioxide (CO2) and other air pollutants and greenhouse gases collect in the atmosphere and absorb sunlight and solar radiation that have bounced off the earth's surface.

Thus when the Earth is radiating with a greater intensity than the back radiation from the air, then the excess radiation will be absorbed by the air molecules, and the air will warm.

When airplanes fly through these clouds, dose rates of cosmic radiation normally absorbed by air travelers can double or more.

When x-rays go through an object, some of the radiations will be absorbed, some will be transmitted, and the last part will be scattered in different positions because of the interactions with atoms in the object.

However, when a coma develops, dust reflects still more sunlight, and gas in the coma absorbs ultraviolet radiation and begins to fluoresce.

Cast your mind back to 2016, when Anish Kapoor sparked outrage for buying the exclusive rights to Vantablack, said to be the world's blackest black, a pigment that absorbs 99.96 % of all visible radiation.

But it does not, for most of the entropy production happens on Earth when short wave radiation is absorbed and gets thermalized.

Thus when the Earth is radiating with a greater intensity than the back radiation from the air, then the excess radiation will be absorbed by the air molecules, and the air will warm.

The vibrational frequencies are quantised, and radiation is absorbed when the photon causes a change in the vibrational frequency.

When CO2 absorbs the radiation it «excites» the molecule, causing it to vibrate more energetically.

Meanwhile, when radiation escapes without being absorbed then it will cool locally.

Cooks In Clouds: GoSun's patented solar cooking technology absorbs a broad spectrum of radiation, including ultraviolet light, which can penetrate clouds when visible light can not.

«Most authors have dismissed this theory with a remark similar to the following quotation from C. E. P. BROOKS (1951): the carbon dioxide theory was «abandoned when it was found that all the long - wave radiation absorbed by CO, is also absorbed by water vapour.»

«Arrhenius and Chamberlain saw in this [variations in carbon dioxide] a cause of climate changes, but the theory was never widely accepted and was abandoned when it was found that all the long - wave radiation absorbed by CO2 is also absorbed by water vapor.

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

Here is the IPCC on stratospheric cooling: «When the CO2 concentration is increased, the increase in absorbed radiation is quite small and increased emission leads to a cooling at all heights in the stratosphere.»

When there are no greenhouse gases the atmosphere can not absorb incoming radiation or emit outgoing radiation.

Because ice reflects some heat radiation back out into space, when it melts it exposes darker ocean which then absorbs that radiation, leading to more warming.

Why yes, Since you ask CO2 absorbs Infared radiation, but who said it doesn't heat up when it does that?

Soot absorbs incoming solar radiation and can speed glacial melting when deposited on snow in sufficient quantities.

As evident in the figures the near surface air temperatures are actually warmer over the Arctic Ocean (by over 1 °C in large areas) when the sea ice absorbs solar radiation and transfers some of this energy as sensible heat back into the atmosphere.

Tom Vonk is correct when he says that the following statements are over-simplifications and need corrections (in caps): «CO2 absorbs AND EMITS the outgoing infrared energy and warms the atmosphere TO A HIGHER TEMPERATURE THAN IT WOULD HAVE WITHOUT CO2» — or — «CO2 traps part of the infrared radiation between ground and the upper part of the atmosphere» AND IS THE MAJOR SOURCE OF INFRARED RADIATION FROM THE UPPER ATMOSPHERE radiation between ground and the upper part of the atmosphere» AND IS THE MAJOR SOURCE OF INFRARED RADIATION FROM THE UPPER ATMOSPHERE RADIATION FROM THE UPPER ATMOSPHERE TO SPACE.

Then, especially when there is excessive cloud cover over the oceans, the Sun's energy absorbed above the clouds can actually make its way down to the ocean surface (and below) warming the oceans by non-radiative processes, not by direct solar radiation which mostly passes through the thin surface layer and could barely raise the mean temperature of an asphalt paved Earth above -35 C.

The stratosphere cools when ozone is destroyed because there is less ozone to absorb UV radiation.

«when CO2 i the air absorbs the morning sunlight» — my understanding is that CO2 only absorbs the longer wavelength reflected radiation, not the shorter wavelength sunlight.

You yourself quoted empirical proof of what Claes has proven computationally when you talked about a gas not absorbing radiation from a cooler emitter, but doing so when the emitter got warmer than the gas.

global warming occurs when carbon dioxide and other air pollutants and greenhouse gases collect in the atmosphere and absorb sunlight and solar radiation that have bounced off the earth's surface.

When you add GHGs to the atmosphere, it both emits more radiation towards space and earth and absorbs more radiation mostly from earth.

The use of dark, nonreflective materials for parking, roofs, walkways, and other surfaces raises ambient temperatures when radiation from the sun is absorbed and transferred through convection and conduction back to surrounding areas.

Instead, because there are greenhouse gases in our atmosphere, that radiation gets absorbed by those molecules and when they absorb it, the IR radiation gets converted to heat.

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.

When Eli last left the bunnies, he was pointing out how gravity explains much of the greenhouse effect, well, except for the part that you need some things in the atmosphere that absorb IR radiation from the surface.

A: Global warming occurs when carbon dioxide (CO2) and other air pollutants collect in the atmosphere and absorb sunlight and solar radiation that have bounced off the earth's surface.

Another issue is the potential for light - absorbing aerosols to increase in - cloud absorption of solar radiation and correspondingly decrease the cloud albedo when incorporated inside cloud droplets.

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

Black carbon warms the earth by directly absorbing reflected solar radiation and also by darkening the surface of snow and ice when it is deposited there (and enhances melting).

Positive radiative forcing occurs when the Earth absorbs more energy from solar radiation than it emits as thermal radiation back to space.

4) As I understand it, the ~ 15μm radiation from the Surface to the Atmosphere is absorbed by H2O and CO2 molecules which, when excited, bump into nitrogen and oxygen and other air molecules, and heat the air.

Ira — regarding your summary comment 4) at May 8, 2011 at 7:51 pm my comment — NO, the atmosphere does NOT emit LWIR across a distribution of wavelengths like a blackbody, see my earlier comment at Dave in Delaware says: May 8, 2011 at 7:00 am Ira Glickstein, PhD says: «4) As I understand it, the ~ 15μm radiation from the Surface to the Atmosphere is absorbed by H2O and CO2 molecules which, when excited, bump into nitrogen and oxygen and other air molecules, and heat the air.

Nitrous oxide is removed from the atmosphere when it is absorbed by certain types of bacteria or destroyed by ultraviolet radiation or chemical reactions.

However, when the temperature of source body for the radiation being absorbed is within a few Kelvin of the emitting body then to a quite accurate assumption, absorptivity = emissivity.

It was only in the 1950s, when improved instruments showed more precisely how water and CO2 absorbed radiation, that we reached a better understanding of its importance.