Sentences with phrase «heat radiation from the atmosphere»

Not exact matches

Darin Toohey, a professor at the University of Colorado's atmospheric and oceanic sciences department and one of the paper's authors, says black carbon absorbs shortwave radiation from the sun, causing the atmosphere to heat up.

Although the concentration of carbon dioxide in the atmosphere is much higher, at around 385 parts per million, methane is a worry as it is much better than carbon dioxide at locking in heat from solar radiation.

The visible solar radiation mostly heats the surface, not the atmosphere, whereas most of the infrared radiation escaping to space is emitted from the upper atmosphere, not the surface.

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.

The formation of a stratosphere layer in a planet's atmosphere is attributed to «sunscreen» - like molecules, which absorb UV and visible radiation coming from the star and then release that energy as heat.

However, radiation changes at the top of the atmosphere from the 1980s to 1990s, possibly related in part to the El Niño - Southern Oscillation (ENSO) phenomenon, appear to be associated with reductions in tropical upper - level cloud cover, and are linked to changes in the energy budget at the surface and changes in observed ocean heat content.

The formation of a stratosphere layer in a planet's atmosphere is attributed to «sunscreen» - like molecules, which absorb ultraviolet (UV) and visible radiation coming from the star and then release that energy as heat.

Depending on the mass of the planets and their distance from the brown dwarf, we should get Io / Europa analogues or, if it has enough mass to hold onto an atmosphere, we could get something different: a world that thanks to tidal heating (and infrared radiation) keeps the surface water liquid.

Yet, through differences in its formation and evolution Venus has become a world with a surface and atmosphere astonishingly different from Earth: entirely devoid of water, lacking plate tectonics and its ability to bury CO2 and stabilize its, Venus's thick CO2 atmosphere traps the incoming solar radiation and heats up to about 740 K (464 C).

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

The researchers used satellites to measure heat in the form of microwave radiation emitted by oxygen molecules in the atmosphere from 1979 to 2005.

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?

Hence the energy must come from the atmosphere, but wherever the atmosphere is colder than the Antarctic surface, there can be no heat transfer by radiation.

Hypothesis A — Because the atmospheric radiation is completely absorbed in the first few microns it will cause evaporation of the surface layer, which takes away the energy from the back radiation as latent heat into the atmosphere.

With some LW absorbing optical thickness, the atmosphere can emit radiation to space, so some heat will flow into the atmosphere from where solar heating occurs to get to space.

The same issues that are bugging you (or your skeptical acquaintance) are perfectly well illustrated, indeed better illustrated, by the heating of bare, dry rock from solar radiation and from infrared coming down from the atmosphere.

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.»

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).

Is the majority of the initial (before feedback) atmosphere heating resulting from increased CO-2 reduced by the fact that the majority (W - Sq - M at low latitude) of outgoing radiation is in the latitudes most saturated by water vapor?

The spacecraft's Atmospheric Infrared Sounder, an instrument that measures infrared heat radiation as it leaves the atmosphere, is expected to provide vastly more and better temperature and humidity readings worldwide than are available now from weather satellites and other sources.

The heat caused by infrared radiation is absorbed by greenhouse gases such as water vapor, carbon dioxide, ozone and methane, which slows its escape from the atmosphere.

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.

Over land, you have a surface energy balance that includes downwelling IR, upwelling IR (Stefan Boltzmann), downwelling solar radiation minus what is reflected back from the surface, latent heat flux and sensible heat flux (these are turbulent fluxes associated with exchange with the atmosphere), and conductive flux from the ground (below the surface).

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

The idea is that heat is lost from the upper atmosphere by radiation and replaced from below by heat carried upwards with convection currents.

Their container for their empty space atmosphere being the non-existant glass of their greenhouse which prevents longwave infrared direct from the Sun entering, which is heat radiation, and for which they have substituted shortwave mainly visible light to heat their imaginary Earth, impossible in the real world.

The Met Office state «The «greenhouse effect» is the way the atmosphere traps some of the energy we receive from the Sun (infrared radiation or heat, ultraviolet and visible light) and stops it being transmitted back out into space».

Ozone is abundant here and it heats the atmosphere while also absorbing harmful radiation from the sun.

If almost all of the heat transfer from surface to upper atmosphere is by convection, then you can change anything you want about the radiation system, more GHG, less, it won't matter.

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.

IR radiation absorbed from this source very definitely WILL heat the atmosphere (if convection from the surface is ignored).

The best papers I've read (so far) that seek to explain how things like the DALR and wet air lapse rates effect the actual transport of heat from the solar - heated surface and atmosphere to where it is ultimately lost via radiation are really quite good.

[James Shaffer]: «From my college book «Meteorology Today: An intro book to weather, climate and the environment» it seems a matter of basic physics and such that the Visible and some UV radiation reemitted by the Earth in the form of infrared radiation is absorbed by CO2 and H2O (some not all) thus heating them and they in turn heat the rest of the atmosphere».

From my college book «Meteorology Today: An intro book to weather, climate and the environment» it seems a matter of basic physics and such that the Visible and some UV radiation reemitted by the Earth in the form of infrared radiation is absorbed by CO2 and H2O (some not all) thus heating them and they in turn heat the rest of the atmosphere.

The atmosphere is analogous to a flexible lens that is shaped by the density distribution of the gas molecules, of the atmosphere in the space between the sphere holding them, and space; Incoming heat gets collected in many ways and places,, primarily by intermittent solar radiation gets stored, in vast quantities, and slowly but also a barrage of mass and energy fluxes from all directions; that are slowly transported great distances and to higher altitudes mostly by oceanic and atmospheric mass flows.

The brightness temperature values represent heat radiation from a combination of the sea surface and overlying moist atmosphere.

If the atmosphere of Venus became truly opaque to incoming solar radiation at some altitude above the surface, the atmosphere below that point would be isothermal assuming no heat input to the surface from the core of the planet.

As long as the outgoing longwave radiation is n`t decreasing over the Top Of Atmosphere, all the heat uptake comes from the change of short wave radiation.

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.

I agree with a lot of your assertions, e.g. the practical irrelevance of the adiabatic and hence essentially reversible ALR — the only mechanism that actually cools the atmosphere (permanently removes heat from it) is radiation, and that occurs in the upper troposphere where the atmosphere ceases to be opaque to e.g. LWIR (although it is more complex than this, this process occurs in depth and at different depths in different frequencies).

the GHG thermal radiation from the atmosphere reduces surface emissivity so the impedance to heat transport from all sources rises.

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.

Nope: the GHG thermal radiation from the atmosphere reduces surface emissivity so the impedance to heat transport from all sources rises.

«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.

The cooling rate depends on all the fluxes, including also conductive / convective, latent heat, and back - radiation from the atmosphere.

Although radiation to space occurs over the whole planet there is a general movement of heat from equator to poles via the oceans and atmosphere.

Others also call the total flows of thermal radiation from the atmosphere to the surface and visa versa, heat.

«in an isotropic non GHG world, the net would be zero, as the mean conduction flux would equalize, but in our earth it is still nearly zero» if the atmosphere were isothermal at the same temperature as the surface then exactly the downwelling radiation absorbed by the surface would be equal to the radiation of th surface absorbed by the air (or rather by its trace gases) and both numbers would be (1 - 2E3 (t (nu)-RRB--RRB- pi B (nu, T) where t (nu) is the optical thickness, B the Planck function, nu the optical frequency and T the temperature; as the flow from the air absorbed by the surface is equal to the flow from the surface absorbed by the air, the radiative heat transfer is zero between surface and air.

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.