Sentences with phrase «radiation from the atmosphere warming»

Thus we hear so much about «down welling» re - radiation from the atmosphere warming up the planet dangerously because humanity is releasing a certain amount of CO2 that would not otherwise be in the atmosphere.

Not exact matches

Some observers quietly worry that, under Trump, a new focus on climate engineering could become part of a justification for delaying government action to curb carbon emissions, with the reasoning that geoengineering technologies could later be used to remove carbon from the atmosphere, or prevent the warming effects of solar radiation.

Black carbon warms the atmosphere because of its ability to absorb radiation from the sun, but its effect can be especially pernicious in polar regions, where, falling on bright ice, the soot diminishes the regions» ability to reflect away heat.

Managing how much solar radiation streams through Earth's atmosphere might offer fast, short - term relief from global warming.

The amounts that are in Pluto's atmosphere are enough to absorb infrared radiation (heat) from the sun and warm the upper atmosphere.

The warming trends in looking at numerous 100 year temperature plots from northern and high elevation climate stations... i.e. warming trends in annual mean and minimum temperature averages, winter monthly means and minimums and especially winter minimum temperatures and dewpoints... indicate climate warming that is being driven by the accumulation of greenhouse gases in the atmosphere — no visible effects from other things like changes in solar radiation or the levels of cosmic rays.

For example, they predicted the expansion of the Hadley cells, the poleward movement of storm tracks, the rising of the tropopause, the rising of the effective radiating altitude, the circulation of aerosols in the atmosphere, the modelling of the transmission of radiation through the atmosphere, the clear sky super greenhouse effect that results from increased water vapor in the tropics, the near constancy of relative humidity, and polar amplification, the cooling of the stratosphere while the troposphere warmed.

BPL: We know from radiation physics that CO2 is a greenhouse gas, therefore putting more in the atmosphere should cause warming.

Second even if we ignore convection (and assume all warming of the atmosphere is from below, ie no incoming solar radiation is absorbed in the atmosphere) it is not the case that the atmosphere temperatures will «pivot» around some fixed level (increasing below it and falling above it).

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 outgoing longwave radiation is composed not just of the radiation that leaks through to the top from the warm lower layers, but also of the «cold» radiation emitted from the upper atmosphere.

What the CO2 (both «cold, hot and warm CO2 ′) and other gasses do is to make the atmosphere more optically thick to thermal IR radiation emitted (mainly) from the Earth's surface [note2] which has consequences for the equilibrium temperature profile of the atmosphere.

Less TOA cooling will occur if bands are placed where, in the upper atmosphere or near TOA, they absorb more of the increases in radiation from below from surface + tropospheric (+ lower stratospheric) warming.

Re 346 ziarra, again: «The radiation from a cooler upper atmosphere can warm the surface because it counteracts the even greater amount of radiation in the other direction, thus reducing the net flow of heat.»

They also fail to mention that sunlight can travel tens of METRES into the water and is thus a powerful warming agent compared to the single MILLIMETRE penetration of down welling infrared radiation from the atmosphere.

Increased atmospheric CO2 tends to close this window and cause outgoing radiation to emerge from higher, colder levels, thus warming the surface and lower atmosphere by the so called greenhouse mechanism»

Natural variability might modulate the flow of energy between parts of the system, such as from ocean to atmosphere, but the «pace of climate warming», as in the general gain in energy (or loss of energy) of the entire climate system, can only be dictated by some external forcing, such as somthing that changes the amount of solar radiation reaching the surface, volcanoes, or changes in GH gas concentrations.

The heat capacity of the ocean is 1,000 x greater than the atmosphere, ocean is over 70 % of earth's surface and earth is warmed by radiation from sun and GHE.

Downwelling radiation from a warm atmosphere doesn't heat the water.

This is because, when radiation from a cooler atmosphere strikes a warmer surface it undergoes «resonant scattering» (sometimes called pseudo-scattering) and this means its energy is not converted to thermal energy.

The warmer body cools more slowly as a result because a ready source of energy from incident radiation is quicker to just «reflect» back into the atmosphere, rather than have to convert its own thermal energy to radiated energy.

Since the LW radiation from the ground is always in the azimuth hemisphere's direction and 1/2 of the reemitted photons are in the nadir hemisphere, a radiation pressure exists here which will cause and infinitesimal but real expansion of the atmosphere which will exactly cause a temperature decrease that exactly counteracts any warming from the downward 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.

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 ATMOSPHEREatmosphere 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 ATMOSPHEREatmosphere» AND IS THE MAJOR SOURCE OF INFRARED RADIATION FROM THE UPPER ATMOSPHERE RADIATION FROM THE UPPER ATMOSPHEREATMOSPHERE TO SPACE.

Downward long - wave or infrared radiation from the atmosphere to the surface is a vital component to warming the Earth's surface.

Not sure if you meant the double negative here, but just to clarify matters, radiation from a cooler atmosphere is not converted to thermal energy when it meets a warmer surface because its frequency is below the cut - off.

We hqppen to have such a star that delivers EM energy to the bottom of the transparent atmosphere, and that energy warms the bottom of the atmosphere by all the well known thermal processes, until the energy loss rate, eventually limited by radiation, matches the supply rate from the star.

Q. 2: Does this extend to the oceans and / or land surfaces and thus imply that a warmer solid or liquid surface does not absorb radiation from a cooler atmosphere?

Briefly, the warmer body (Earth's surface) is not affected by radiation from the cooler one (the atmosphere) because that radiation does not have enough energy (high enough frequency) to bring about the conversion of its energy into thermal energy.

There is this idea that floats around the climate skeptic blogosphere that somehow a cold body does not radiate AT ALL to a warmer object, as if radiation from the cool atmosphere to the warm ground violates the 2nd Law.

If radiation from a cooler atmosphere could warm the oceans then it should be able to melt frost, but it doesn't.

Earth's atmosphere also plays a vital role in regulating the temperature by providing a blanket of gases that not only protects us from excessive heat and harmful radiation from the sun, but also traps heat rising from the Earth's interior, keeping us warm.

As you are above the low altitude clouds and a good deal of the atmosphere there, I'd expect incoming solar radiation (however the sensor is shielded) and reflected short wave from lower clouds to cause a warm bias if anything.

Global warming starts with the greenhouse effect, which is created by the relationship between the radiation from the sun and the Earth's atmosphere.

«The ability of a planetary atmosphere to inhibit heat loss from the planet's surface, thereby enhancing the surface warming that is produced by the absorption of solar radiation.

And in any case, heat does not flow from the cold atmosphere to the warmer surface, either by conduction, or radiation.

This must result in about 85 times as much infrared radiation from the Sun, at 3.3 microns wavelength, being sent back into space by the absorption and re-radiation from methane molecules in the upper atmosphere as could be re-radiated into the lower atmosphere for infrared radiation sourced from the warmed Earth.

The light from the Sun passes through the Earth's atmosphere, which is transparent to visible light (that's why our eyes evolved to be sensitive to this kind of electromagnetic radiation), and warms the surface of the Earth, which in turn reradiates the energy, now as infrared radiation, because the Earth's surface isn't as hot as the Sun.

With 2), there's still something I don't get... and this applies just as much to your answer as to any answers you would get from climate science, since clouds are clouds (i.e droplets of water), and water vapour is a gas, so their back - radiation explanation doesn't even apply in the case of clouds (not saying it physically could apply anywhere but hopefully you get what I mean)... what I don't get is, you liken them to a blanket, but a blanket is next to you, clouds are separated from the surface by quite a bit of atmosphere — so why is it warmer the next morning at the surface when the clouds are there?

Then, for the benefit of the lay reader, who would not be expected to understand the clear (to a competent physical scientist) implication of this simply - stated fact, I wrote: «This in fact indicates that the Venusian atmosphere is heated mainly by incident infrared [not the VISIBLE portion, which is indeed largely reflected, defenders, but INFRARED] radiation from the Sun, WHICH IS NOT REFLECTED BUT ABSORBED [or allowed in to heat the lower atmosphere] by Venus's clouds, rather than by warming first of the planetary surface.

«The greenhouse effect is the process by which radiation from a planet's atmosphere warms the planet's surface to a temperature above what it would be without its atmosphere.»

Thus CO2 does indeed warm the lower atmosphere for a hundred metres or so and that shields the CO2 above from any further surface radiation (at the CO2 spectra remember).

The greenhouse effect is the process by which radiation from the planet's atmosphere [back radiation] warms the planet's [lower atmosphere] above what it would be if it had an atmosphere without any GHG's — a very different situation.

For example, in a warmer climate, more water vapor is evaporated into the atmosphere and since water vapor is a greenhouse gas in the sense of absorbing IR radiation, this is a positive feedback, in essence increasing the W / m ^ 2 from that due to CO2 alone.

There is no need for James Hansen's explanation in which he realises that extra energy is needed to explain the warm surface temperature, but quite incorrectly assumes it is supplied by radiation from the colder atmosphere, including some from carbon dioxide molecules.

I didn't mention the obvious fact that you stated, that the heating will cease, when the upper atmosphere warms enough to restore the equilibrium between radiation leaving the earth and arriving from the sun.

29 21.3 Climate Changes Human Impact on Climate Changes The Greenhouse Effect • The greenhouse effect is a natural warming of both Earth's lower atmosphere and Earth's surface from solar radiation being absorbed and emitted by the atmosphere.

Anthropogenic global warming is caused by an increase in the amount of downward longwave infrared radiation coming from greenhouse gases in the atmosphere.

Similarly if you change the composition of the atmosphere by introducing large quantities of a greenhouse gas that causes greater back - radiation of infra - red towards the surface of the surface from the air, then over a climatic period of time the seas will get warmer.

The effect of this disparity is that thermal radiation escaping to space comes mostly from the cold upper atmosphere, while the surface is maintained at a substantially warmer temperature.