Sentences with phrase «on ozone in the stratosphere»

What studies have been done in the paleo record regarding CO2 effects on ozone in the stratosphere and how it affected life?

Not exact matches

It is therefore very important to consider the effect of solar proton events on the temporal and spatial distribution of ozone in the stratosphere.

The meeting was the first large - scale attempt to bridge the gap between scientists and policymakers on a wide range of atmospheric problems, including not just the greenhouse effect but also acid rain and the depletion of the protective layer of ozone in the stratosphere.

On Earth, temperature inversion occurs because ozone in the stratosphere absorbs much of the sun's ultraviolet radiation, preventing it from reaching the surface, protecting the biosphere, and therefore warming the stratosphere instead.

On the basis of its intended flight route, the Perlan glider might be able to provide the first direct observations of polar stratospheric clouds, a unique type of ice cloud that forms in the polar stratosphere and helps to deplete ozone, Gong adds.

The temperature of the stratosphere is one of the key factors in the springtime depletion of ozone above the Antarctic where in winter it gets colder than anywhere else on Earth, encouraging icy particles to form in polar stratospheric clouds.

Unlike ozone in the stratosphere, which benefits life on Earth by blocking ultraviolet radiation from the Sun, ground - level ozone can trigger a number of health problems.

On Earth, ozone absorbs UV in the stratosphere, protecting our world from a lot of the Sun's harmful radiation.

In addition, industrial short - lived ozone - depleting substances emitted on land, often in the mid-latitudes, have four - to six - month journey to the stratospherIn addition, industrial short - lived ozone - depleting substances emitted on land, often in the mid-latitudes, have four - to six - month journey to the stratospherin the mid-latitudes, have four - to six - month journey to the stratosphere.

Stratospheric cooling as a result of excess CO2 does influence ozone recovery, and ozone changes in the troposphere and stratosphere to have effects on radiative balance of the planet.

Temperature inversion in Earth's stratosphere occurs because of the presence of ozone, while on Jupiter and Saturn, it is caused by the presence of hydrocarbons.

No specific mention of the «volume cold enough for ozone loss» trend line is made in the Nature text, although it is stated that «Certain clouds in the stratosphere provide surfaces on which CFC decay products are converted into forms that destroy ozone â??

Higher levels of carbon dioxide, however, do have an indirect effect on the ozone layer in the stratosphere.

Throw a light on the dangerous effects of ozone depletion through free radicals in the stratosphere.

On the other hand both records have shown dramatic cooling in the stratosphere, where cooling is indeed expected due to increasing greenhouse gases and decreasing ozone (which heats the stratosphere due to its absorption of solar ultraviolet radiation).

Warming must occur below the tropopause to increase the net LW flux out of the tropopause to balance the tropopause - level forcing; there is some feedback at that point as the stratosphere is «forced» by the fraction of that increase which it absorbs, and a fraction of that is transfered back to the tropopause level — for an optically thick stratosphere that could be significant, but I think it may be minor for the Earth as it is (while CO2 optical thickness of the stratosphere alone is large near the center of the band, most of the wavelengths in which the stratosphere is not transparent have a more moderate optical thickness on the order of 1 (mainly from stratospheric water vapor; stratospheric ozone makes a contribution over a narrow wavelength band, reaching somewhat larger optical thickness than stratospheric water vapor)(in the limit of an optically thin stratosphere at most wavelengths where the stratosphere is not transparent, changes in the net flux out of the stratosphere caused by stratospheric warming or cooling will tend to be evenly split between upward at TOA and downward at the tropopause; with greater optically thickness over a larger fraction of optically - significant wavelengths, the distribution of warming or cooling within the stratosphere will affect how such a change is distributed, and it would even be possible for stratospheric adjustment to have opposite effects on the downward flux at the tropopause and the upward flux at TOA).

What was the ozone level back then in the stratosphere... was it conducive to allow live on land?

On the other hand, CFCs destroy ozone (a GHG) in the stratosphere.

In the meantime, Murry Salby has at least 8 papers in the past decade on the importance of the QBO on the stratosphere, and notes the» climate sensitivities of temperature and ozone describe random changes between years, introduced by anomalous EP flux and the QBO»In the meantime, Murry Salby has at least 8 papers in the past decade on the importance of the QBO on the stratosphere, and notes the» climate sensitivities of temperature and ozone describe random changes between years, introduced by anomalous EP flux and the QBO»in the past decade on the importance of the QBO on the stratosphere, and notes the» climate sensitivities of temperature and ozone describe random changes between years, introduced by anomalous EP flux and the QBO».

Again (don't tell Santer) it's the Sun stupid: changes in UV light has a direct influence on the stratosphere due to more Ozone and this results in greater warming of the upper stratosphere and swirling, wind - driving, convective atmospheric vortices that are known as weather.

International controls on the emission of ozone - depleting halogens are now in place, so that their abundance in the stratosphere is expected to peak around the year 2000.

As of this writing, there is observational and modeling evidence that: 1) both annular modes are sensitive to month - to - month and year - to - year variability in the stratospheric flow (see section on Stratosphere / troposphere coupling, below); 2) both annular modes have exhibited long term trends which may reflect the impact of stratospheric ozone depletion and / or increased greenhouse gases (see section on Climate Change, below); and 3) the NAM responds to changes in the distribution of sea - ice over the North Atlantic sector.

The amount of ozone in the upper troposphere depends on dynamical processes [waves] and transport mechanisms between controlling the downward intrusions of ozone from the stratosphere, thus driven from below.

22 Ozone in the stratosphere filters out much of the harmful ultraviolet radiation from the sun View Figure 25 on page 379 of your textbook In the 1970s scientists noticed that the ozone layer over Antarctica was growing thinner OZONE DEPLOzone in the stratosphere filters out much of the harmful ultraviolet radiation from the sun View Figure 25 on page 379 of your textbook In the 1970s scientists noticed that the ozone layer over Antarctica was growing thinner OZONE DEPLOzone in the stratosphere filters out much of the harmful ultraviolet radiation from the sun View Figure 25 on page 379 of your textbook In the 1970s scientists noticed that the ozone layer over Antarctica was growing thinner OZONE DEPLETIin the stratosphere filters out much of the harmful ultraviolet radiation from the sun View Figure 25 on page 379 of your textbook In the 1970s scientists noticed that the ozone layer over Antarctica was growing thinner OZONE DEPLETIIn the 1970s scientists noticed that the ozone layer over Antarctica was growing thinner OZONE DEPLozone layer over Antarctica was growing thinner OZONE DEPLozone layer over Antarctica was growing thinner OZONE DEPLOZONE DEPLOZONE DEPLETION

On the Earth's surface, ozone is a pollutant, but in the stratosphere it forms a protective layer that reflects ultraviolet radiation back out into space.

Scientists are focussed on ozone depletion in the stratosphere and its part in Antarctic ice extent.

The result would be a planet on which humans could work and survive outdoors in the summer only in mountainous regions [115,116]-- and there they would need to contend with the fact that a moist stratosphere would have destroyed the ozone layer [117].

Shindell, D.T., and V. Grewe, 2002: Separating the influence of halogen and climate changes on ozone recovery in the upper stratosphere.

«Because of the strong absorption of ozone in the UV occurring in the upper stratosphere and meso - sphere, a solar influence on the thermal structure in these regions of the atmosphere is plausible.

Stephen Wilde says: April 27, 2010 at 4:43 pm I note that you are content to rely on the AO (even without human CFCs) to regulate ozone and you seem to concede that the AO is powerful enough in that respect to dictate the temperature of the stratosphere.

Your entire climate overview to the effect that there has been no significant solar effect on the climate is down to your belief in the anthropogenic nature of the growth of the ozone hole which allows you to attribute the observed changes in the temperature of the stratosphere to internal variability (albeit anthropogenic).

Water vapor and ozone in the stratosphere can have a large impact on Earth's climate.

Chemically, there will be an increase in ozone depletion (due to increases in heterogenous surface chemistry in the stratosphere), increases in acid rain, possibly an increase in high cirrus cloud cover due to indirect effects of the sulphates on cloud lifetime.

(Note: Ozone is a good thing high up in the stratosphere, where it is naturally produced and blocks ultraviolate (UV) rays from harming life on Earth, but a bad thing in the troposphere, where it acts as main ingredient of smog and is harmful to breath and damages crops).

Increased water vapor in the stratosphere makes it warmer on the ground by trapping heat, while the ozone loss makes it colder on the ground.

The Microwave Limb Sounder instrument on NASA's Aura spacecraft observes ozone in Earth's stratosphere.

Chemically, there will be an increase in ozone depletion (due to increases in heterogeneous surface chemistry in the stratosphere), increases in acid rain, possibly an increase in high cirrus cloud cover due to indirect effects of the sulphates on cloud lifetime.

There is currently negligible global warming at the tropopause (as a function of latitude), and global cooling in the stratosphere on account of antigreenhouse gases (primarily ozone).

In the stratosphere, we find the «good» ozone that protects life on Earth from the harmful effects of the Sun's ultraviolet rays.