3)
Less radiation to space — sorry, there's more.
Not exact matches
High - power gallium nitride - based high electron mobility transistors (HEMTs) are appealing in this regard because they have the potential
to replace bulkier,
less efficient transistors, and are also more tolerant of the harsh
radiation environment of
space.
The paper also reports that the memory is
less prone
to degradation when exposed
to gamma
radiation - something that is important for memory used for
space travel, as the memory would have
to feature
less shielding, thus reducing its weight.
So with more carbon dioxide in the atmosphere, we expect
to see
less longwave
radiation escaping
to space at the wavelengths that carbon dioxide absorb.
''... Satellite measurements confirm
less longwave
radiation is escaping
to space... Surface measurements find more longwave
radiation returning back
to Earth at these same wavelengths.»
Satellite measurements confirm
less longwave
radiation is escaping
to space at carbon dioxide absorptive wavelengths.
This is reflected in
radiation trends of 5 W / m2 IR
radiation back
to space and 2 W / m2
less reflection of sunlight for the period 1985 - 2000, which results in 3 W / m2 net loss
to space.
Actually, though, most of the OLR originates from below the tropopause (can get up around 18 km in the tropics, generally lower)-- with a majority of solar
radiation absorbed at the surface, a crude approximation can be made that the area emitting
to space is
less than 2 * (20/6371) * 100 % ~ = 0.628 % more than the area heated by the sun, so the OLR per unit area should be well within about 0.6 % of the value calculated without the Earth's curvature (I'm guessing it would actually be closer
to if not
less than 0.3 % different).
Actually
to reach a new, higher equilibrium temperature, the Earth surface (including oceans) must warm and thus the radiative budget MUST be unbalanced,
less radiation must be emitted in
space compared
to the (unchanged) incoming solar
radiation.
The
radiation to space is made
less efficient by the existence of a warm stratosphere above the air, generating IR
radiation from above, and limiting the net cooling of the upper troposphere.
The latest modelling experiments take this into account, but it is easier
to understand causes and effects in an equilibrium - response experiment.The first thing that happens when CO2 is doubled is that
less energy in the form of
radiation escapes
to space.
If the objective was
to develop a general circulation model that matches reality rather than
to push an agenda likely one of model fixes would be modify
to GCMs (modeling of planetary cloud cover)
to match Lindzen and Choi finding that planetary cloud cover in the tropics increases or decreases
to resist forcing changes by reflecting more or
less radiation off
to space.
By increasing the humidity, the solar energy is used more efficiently, or putting it another way there is
less energy lost
to space by the emission of longwave
radiation because humid air has a strong greenhouse effect.
The atmosphere as a whole is more energetic and there are therefore more photons bouncing around — more escape directly
to space balancing more or
less the incoming
radiation.
More than 90 % of the terrestrial cooling
to space is atmospheric
radiation (GHGs and clouds),
less than 10 % is surface
radiation.
@Edim: More than 90 % of the terrestrial cooling
to space is atmospheric
radiation (GHGs and clouds),
less than 10 % is surface
radiation.
«This (smoke aerosols in clouds) reflects more solar
radiation to space, which results in
less solar
radiation reaching the Earth's surface.
This is about the
radiation from the Earth
to space, which is prevented by the atmosphere's greenhouse gases, and as we pour more and more greenhouse gases into the atmosphere,
less energy will be sent into
space.
Hence as the upper troposphere contributes an increasingly greater share of the
radiation to space with rising GHG's, it does so
less effectively because it is colder than the lower troposphere.
Less heat therefore escapes
to space, forcing the temperature of the whole troposphere
to rise until once again the
radiation to space equals the net insolation.
If the troposhere is cold, that means sea surface also is cold, and it is still gaining shortwave energy from the Sun at the same rate while it radiates a
lesser amount longwave
radiation to space.
I was thinking along those lines, inland, away from the ocean there would be
less cloud and more
radiation to space at night, lowering Tmin and lowering the average.
The effect of that is
less solar
radiation being reflected away back into the
space and that is what causes the temperature of the Earth's surface
to rise.
If
less energy comes in, the governor will try
to maintain the energy flux into the system (Willis's retarding the appearance of clouds) but once all stops have been pulled out (the sky is clear morning
to night), then the engine slows down — slower air and water currents,
less addition of heat
to the polar areas, dissipation of what heat has accumulated by
radiation into
space and return cold water not getting the heating it formerly did.
So with more carbon dioxide in the atmosphere, we expect
to see
less longwave
radiation escaping
to space at the wavelengths that carbon dioxide absorb.
''... Satellite measurements confirm
less longwave
radiation is escaping
to space... Surface measurements find more longwave
radiation returning back
to Earth at these same wavelengths.»
Now can we hear whatâ $ ™ s wrong with more CO2,
less infrared
radiation to space, and so higher temperatures.
Now can we hear what's wrong with more CO2,
less infrared
radiation to space, and so higher temperatures.
The top of the troposphere is cooler solely because energy is lost
to space and there is
less downward IR
radiation.
The resulting cold conditions around the world led
to less longwave
radiation back
to space, and
less convection and fewer clouds over the Pacific leading
to increase absorbed solar
radiation.
Today Earth is out of balance because increasing atmospheric gases such as CO2 reduce Earth's heat
radiation to space, thus causing an energy imbalance, as there is
less energy going out than coming in.
For this reason, the shell will receive
less W / sqm from Earth
radiation than is emitted by the surface, because the
radiation will spread out by the inverse square law just as sunlight gets
less intense the further from the sun you get, and the shell will radiate more
to space than back
to Earth.
A small localized change in surface temperature can cause a convection burst (thunderstorm) and a large increase in convection height, improving both reflection of incoming solar
radiation, and conveying sensible heat
to a higher altitude where it can then escape
to space via radiative processes with far
less interference.
It also means
less longwave
radiation escaping
to space.
Thus the night sky is frequently clear, allowing any outgoing
radiation from the tropical ocean a more or
less free ticket
to outer
space.
5) Thus the presence of water vapour and CO2 means that
less energy is radiated into
space from within their characteristic
radiation bands so the temperature of the earth's surface has
to increase in order for energy radiated at other wavelengths
to increase
to compensate.