The Earth and
its atmosphere radiate heat away into space.
Not exact matches
At night, an «airglow» lingers in our
atmosphere as molecules
radiate away the
heat they soaked up during the day.
It
radiates much of that excess
heat back to the
atmosphere in winter.
The same greenhouse gases that trap
heat in the lower
atmosphere allow the stratosphere to more effectively
radiate energy into space.
While drifting in the
atmosphere or after settling on the ground, soot efficiently absorbs sunlight, warms up, and
radiates heat.
Using engineered nanophotonic materials the team was able to strongly suppress how much
heat - inducing sunlight the panel absorbs, while it
radiates heat very efficiently in the key frequency range necessary to escape Earth's
atmosphere.
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.
The team calculated that those hydrocarbon clumps could absorb
heat from the sun as well as from gases in the
atmosphere and
radiate it back into space.
Scientists say that after carbon dioxide, methane is the most important contributor to the greenhouse effect, in which gases in the
atmosphere trap
heat that would otherwise
radiate from Earth.
The thin
atmosphere allows Mars to more easily
radiate heat energy away, so temperatures near the equator can get up to 70 °F (21 °C) during a summer day, and then drop down to − 100 °F (− 73 °C) at night.
To say it a bit worse but in modern lingo: to maintain radiative equilibrium, the planet has to put out a certain amount of
heat, and if it can't
radiate it out from the surface, the lower
atmosphere somehow has to get warmer until there's some level that
radiates the right amount.
-- warm the upper
atmosphere so it
radiates more
heat away?
b]
heat is neutralized by the» cold vacuum» that penetrates into the
atmosphere; not by
heat radiating out of space and albedo gizmo, please read the Holy Grail!!!
There's also a number of interesting applications in the evolution of Earth's
atmosphere that branch off from the runaway greenhouse physics, for example how fast a magma - ocean covered early Earth ends up cooling — you can't lose
heat to space of more than about 310 W / m2 or so for an Earth - sized planet with an efficient water vapor feedback, so it takes much longer for an
atmosphere - cloaked Earth to cool off from impact events than a body just
radiating at sigmaT ^ 4.
Resonant absorption will convert
heat energy to kinetic energy in the molecule (water vapour, CO2 et al) and be transferred by collision to the general
atmosphere, from where it will be
radiated into space.
Are the episodes thought to be actual changes in the amount of
heat being
radiated by the planet (because the surface of the ocean gets warmer and cooler, does the actual infrared flux from the top of the
atmosphere then change as a result)?
With climate and Greenhouse Gas thoeries of Global warming, it appears to me that of most interest is the interface between the Earth's
atmosphere and space and the flow of
radiated heat from the sun, what's reflected back from Earth's surface and the consequences of any change in that balance.
In other words, greenhouse gases don't retain
heat themselves, but rather redirect outgoing energy
radiated by the surface and lower in the
atmosphere, thereby delaying it's ultimate escape to space.
«Sunlight passes through the
atmosphere largely unhindered and warms the Earth's surface; the warmed surface
radiates heat and some of this radiation is absorbed in the upper
atmosphere and re-emitted, about half of the re-emitted energy returning to the Earth's surface.
Heat radiated from the Earth's surface has a range of frequencies, which encompass the vibration frequencies of the gases in the
atmosphere, including those of greenhouse gases such as carbon dioxide.»
This is why (absent sufficient solar or other non-LW
heating) the skin temperature is lower than the effective
radiating temperature of the planet (in analogy to the sun, the SW radiation from the sun is like the LW radiation, and the direct «solar
heating» of the part of the
atmosphere above the photosphere may have to due with electromagnetic effects (as in macroscopic plasmas and fields, not so much radiation emitted as a function of temperature).
No
heat»
radiates out in space, it's all canceled / neutralized by the» cold vacuum» that constantly penetrates into the
atmosphere!
The
heat is quickly
radiated back into the
atmosphere and joins the rest of the radiant energy in the
atmosphere in the process of release to space.
The
heat is quickly conducted or
radiated back into the
atmosphere and joins the rest of the energy in the
atmosphere awaiting a successful release to space.
But that's actually an understatement by Gallup, since more than 97 % of the world's climatologists say that those carbon gases, which are given off by humans» burning of carbon - based fuels, are causing this planet's temperatures to rise over the long term, as those carbon gases accumulate in the
atmosphere and also block the
heat from being
radiated back into outer space.
Most of the
heat radiated by the surface is absorbed by trace gases in the overlying
atmosphere and re-emitted in all directions.
CH, what percentage of
heat is added to the
atmosphere by burning compared to that added from hot sunlit surfaces, or the latent
heat from all the oceans, or
radiated heat from the ground?
It is nature's way to transport huge amounts of latent
heat directly to the upper
atmosphere where it can then
radiate directly to space.
Some
heat radiates back to space or trapped in biosphere Balance determines Earth's average temperature Gases that control in
atmosphere are carbon dioxide, methane, water vapor.
Basically, as fast as
heat loiters about on our planet's surface, it either
radiates off to space or Water will pick it up and carry it to the upper layers of our
atmosphere, where it will change form from gas to liquid or solid giving off
heat to space while being super cooled at the same time.
During a cooling phase, surface
atmosphere could cool as
heat is transported to upper
atmosphere by more intense weather and then
radiates away.
Part way there, but no quantitation yet: of the 3.77 W / m ^ 2
radiated back dowwnard, most goes to increased rate of evaporation of the water at the surface, and much less goes to increased mean temp increase at the surface; hence increased rate of non-radiative transfer of
heat from surface to upper
atmosphere, slight increase in rainfall as hydrological cycle is faster, and slight increase in cloud cover.
Heat is being
radiated into space from GH gases (including water vapour) in the upper
atmosphere.
Satellite measurements show that this lowest layer of the
atmosphere is warming as greenhouse gases build up and trap
heat that
radiates from the Earth's surface.
If believed that CO2 was
radiating much
heat, how Venus
atmosphere retains it's
heat could be problem.
A warm body (the earth)
radiates heat to a cool body (the
atmosphere) 2.
So the first explanation for how this works, the original, is the now classic «greenhouse glass like barrier stopping longwave from the Sun from entering the
atmosphere while visible travels through and is absorbed
heating the Earth's surface which then
radiates out thermal infrared, longwave.
The
atmosphere doesn't need to get rid of
heat, it
radiates because it does like every matter does as long as the temperature is not absolute 0.
An
atmosphere that is perfectly transparent to incoming and outgoing radiation can not
radiate and all its
heat content comes from conduction from the surface and is transported through the
atmosphere solely by convection with no loss of energy to space except for the tiny fraction of atoms at the top of the
atmosphere that exceed escape velocity.
The earth does not
radiate an appreciable amount of
heat into space, and the «greehouse gases» do not make the
atmosphere less reflective to photons raining down on us from the sun.
It does magnify the night - time greenhouse effect by warming the clouds or the higher levels of the
atmosphere, thus increasing the amount of
heat radiated back to the surface; though the overall effect is to reduce net planetary greenhouse warming by limiting the temperature gradient.
For a much more complete Earth energy budget — data on ocean
heat, solar radiance and energy
radiated at the top of the
atmosphere is required.
At the same time, the various bushes aren't producing any new leaves at all yet, and even the hazel flowers haven't really opened yet (normally the first sign of spring around here), despite sufficiently sunny days (which are followed by freezing nights because the lack of clouds mean the Earth
radiates heat into the
atmosphere more easily).
Instead of the surface
radiating energy away, the
atmosphere would start to be a source of the
heat loss for the moon.
Atmospheric
Heating Atmosphere is
heated from the bottom Solar energy absorbed by the Earth is re -
radiated.
But if a little more energy is absorbed, then CO2 is acting like a little black soot in the
atmosphere and it will, in turn,
radiate more toward space as a black box would from the added
heat and this might compensate for the change in albedo.
At any rate it has to be an important part of it and it sure appears to me that as you increase the ability of the
atmosphere to
radiate you are going to lose
heat seemingly as sure as stripping insulation off your storage tank.
Most climate scientists agree the main cause of the current global warming trend is human expansion of the «greenhouse effect «1 — warming that results when the
atmosphere traps
heat radiating from Earth toward space.
Your comment its correct for the sun's radiation
heat but not for the infra red radiation from the Earth's surface that GHG's, whether natural or man made, absorb the absorption
heat the
atmosphere which re
radiates up and down.
Spencer's article lends support to the discredited idea that cold CO2 [carbon dioxide] high in the
atmosphere back -
radiates to Earth's warmer surface,
heating it more and causing it to
radiate to the
atmosphere and space with higher intensity than it would without cold CO2 back - radiation.