Past interglacial warming were triggered by sharp spikes in solar irradiation associated with the Earth's position relative to the sun (Milankovic cycles), with consequent feedback release of greenhouse gas (CO2, CH4) from the oceans and the biosphere, resulting in atmospheric
infrared radiation effects and in melting of ice sheets, which amplify global warming.
Not exact matches
But because glass is also transparent to near -
infrared radiation — windows also let in heat, giving rise to the well - known greenhouse
effect.
It creates a much greater blast
effect than
infrared radiation, or heat — which was the primary means of destruction from the bombs we dropped on Hiroshima and Nagasaki.
The second visualization was a movie captured at 23,000 - times magnification that revealed the movements of a group of nanoparticles reacting to an electron beam, which mimics the
effects of the
infrared radiation used in cancer therapies.
The greenhouse
effect is the process in which the emission of
infrared radiation by the atmosphere warms a planet's surface.
They combined observations in the visible and the near
infrared from the Hubble Space Telescope with radio observations from the Very Large Array and the Submillimeter Array to explore the
effect of the turbulence, stellar
radiation, and magnetic field on massive star formation in the galaxy's nuclear ring.
The Doppler
effect causes them to create
radiation in the longer - wavelength,
infrared portion of the spectrum.
If the temperature decreased with altitude,
infrared radiation would at some point pass through a region of cooler water - gas, which would absorb the part of the spectrum responsible for the glowing
effect, he explained.
Discrimination of ionizing
radiation effects on bone using Fourier Transform
Infrared Spectroscopy using K - means
Far
infrared radiation (FIR): Its biological
effects and medical applications.
A special, highly innovative type of leather on the seats, interior panels, and steering wheel that significantly reduces the heat
effect of bright sunshine: Treatment of the leather in Sun Reflective Technology serves to integrate special color pigments into the material to reflect
infrared radiation in the sunlight.
Detailed studies of the energy balance and ablation of the Zongo and Chacaltaya glaciers support the importance of air temperature increase, and identify the increase in downward
infrared radiation as the main way that the
effect of the warmer air is communicated to the glacier surface [Wagnon et al. 1999; Francou et al, 2003].
Once the heated layer becomes more than a few centimeters thick, the heat loss of the skin layer due to downward conduction of heat by diffusion stops having any significant
effect on the surface temperature, since rock is such a good insulator that the heat flux by conduction in rock is tiny compared to the heat loss by
infrared radiation out the top.
A regional study over the central Alps found that downward
infrared radiation is increasing due to the enhanced greenhouse
effect.
This is not the definition of «greenhouse
effect» that is commonly used in climate science, whereby it relates to the atmospheric emission and absorption of
infrared radiation.
Greenhouse
Effect: The heating of the surface of the earth due to the presence of an atmosphere containing gases that absorb and emit
infrared radiation.
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.
Less well appreciated is that clouds (made of ice particles and / or liquid water droplets) also absorb
infrared radiation and contribute to the greenhouse
effect, too.
«The trapping of thermal
infrared radiation by atmospheric gases is typical of the atmosphere and is therefore called the atmospheric
effect.
«The heating
effect exerted by the atmosphere upon the earth because certain trace gases in the atmosphere (water vapor, carbon dioxide, etc.) absorb and reemit
infrared radiation.
Radiative - covective models put the surface albedo, gas composition and their
infrared absorption together with the solar irradiation into account, this gives a first guess of the top of troposphere, surface temperature and greenhouse
effect (= surface temperature —
radiation temperature).
«The heating
effect exerted by the atmosphere upon the earth because certain trace gases in the atmosphere (water vapor, carbon dioxide, etc.) absorb and re-emit
infrared radiation.
A regional study over the central Alps found that downward
infrared radiation is INCREASING due to the enhanced greenhouse
effect..
Downwelling long - wave
infrared (LWIR)
radiation (DLR) is supposed to increase evaporation and evapotranspiration according to AGW due to increasing GHG
effect from CO2 levels.
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».
Greenhouse
effect Greenhouse gases effectively absorb thermal
infrared radiation, emitted by the Earth's surface, by the atmosphere itself due to the same gases, and by clouds.
It lasts just nine years in Earth's atmosphere but is about 34 times more potent at trapping
infrared radiation (the greenhouse
effect) than carbon dioxide, which is more abundant and lasts longer.
They know that the heat we get from the Sun is the Sun's thermal energy radiated to us in thermal
infrared, it's called HEAT transfer by
radiation, and you've taken that out of your Greenhouse
Effect energy budget..
As far as water vapor in the tropics, they even say» In the humid equatorial regions, where there is so much water vapour in the air that the greenhouse
effect is very large, adding a small additional amount of CO2 or water vapour has only a small direct impact on downward
infrared radiation.»
The natural greenhouse
effect The atmosphere contains several trace gases which absorb and emit
infrared radiation.
In the humid equatorial regions, where there is so much water vapour in the air that the greenhouse
effect is very large, adding a small additional amount of CO2 or water vapour has only a small direct impact on downward
infrared radiation.
GREENHOUSE
EFFECT Greenhouse gases in the atmosphere (such as water vapor and carbon dioxide) absorb most of the Earth's emitted longwave
infrared radiation, which heats the lower atmosphere.
Yes, «greenhouse» is a poor term, but is unfortunately established now (means Tyndall
effect, relates to the absorption of
infrared radiation).
A greenhouse gas is expected to work its warming through the greenhouse
effect, absorbing
infrared radiation and converting it to heat that warms the atmosphere.
I have spent my professional life studying the interactions of visible and
infrared radiation with gases — one of the main physical phenomena behind the greenhouse
effect.
[NB: To avoid the vexing issue of the
effects of the down - welling
infrared radiation, it is easiest to think of long - term zero energy imbalance, as measured by satellites at the top of the atmosphere — after the underlying atmosphere adjusts.
As reported by the IPCC in the Physical Science Basis, «In the humid equatorial regions, where there is so much water vapour in the air that the greenhouse
effect is very large, adding a small additional amount of CO2 or water vapour has only a small direct impact on downward
infrared radiation.
Methane gas lasts just nine years in Earth's atmosphere but is about 34 times more potent at trapping
infrared radiation (the greenhouse
effect) than carbon dioxide, which is more abundant and lasts longer.
Had the
infrared radiations of the greenhouse gas
effect existed, we would have already captured it in our
infrared telescopes.
The
effect under investigation must play a very important role in atmospheric phenomena: it is one of the sources of Earth's cooling; formation of hailstorm clouds in the atmosphere is accompanied by intensive characteristic
infrared radiation that could be detected for process characterization and meteorological warnings.
«This H2O negative - feedback
effect on CO2 is ignored in models that assume that warm moist air does not rise and form sunlight - reflecting clouds, but remains as humid air near sea level, absorbing
infrared radiation from the sun, and approximately doubling the temperature rises predicted from atmospheric CO2 increases.
4 Greenhouse
Effect Certain atmospheric gases trap some of the
infrared radiation that escapes from the Earth, making the Earth warmer than it would be otherwise.
As to the
effect mentioned in your comment, as I understand it, cumulus clouds reflect
infrared radiation back into space while cirrus clouds catch
infrared radiation leaving earth and reflect it back to earth.
Greenhouse
effect - Heat - trapping gases (greenhouse gases) effectively absorb thermal
infrared radiation, emitted by the Earth's surface, by the atmosphere itself due to the same gases, and by clouds.
David Springer wrote: The greenhouse
effect, by trapping
infrared radiation, can lower the albedo of the earth and cause global warming.
and (v)[re CO2 forcing causing back
radiation of
infrared]... since evaporation has a net cooling
effect due to the removal of energy as latent heat the net
effect should be increased cooling and not warming of the oceans
The most basic difference between the two is that
infrared radiation is re-emitted in all directions, upwards out to space and downwards back towards lower layers in the atmosphere and the earth's surface (the greenhouse
effect).
The GWP represents the combined
effect of the differing times these gases remain in the atmosphere and their relative effectiveness in absorbing outgoing thermal
infrared radiation.
CO2 emits
radiation (a cooling
effect) as a function of temperature and the emissivity of CO2, according to the Stefan - Boltzmann relationship, but absorbs
radiation (a warming
effect) as a function of exposure to
infrared radiation.
It is necessary to understand here that laboratory demonstrations of the absorption of
infrared radiation by carbon dioxide are not proof of the greenhouse
effect.