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Where is the hole in the ozone found?
Ozone layer is depletion is happening in the stratosphere of the earth's atmosphere. It is majorly concentrated over Antarctica's atmosphere.
How much of ozone layer has been destoryed until now?
Ozone over the poles has been destroyed. It is due to the fact that ozone is susceptible to low weather.
When was the massive hole in the ozone layer over the Antarctica first discovered?
The ozone hole first appeared when the ozone layer first appeared. The only variable is the "size" of the hole, and the ozone concentration in the "hole". The pole of the Earth that is experiencing winter receives none of the UV that makes ozone (for like a month or more), and ozone naturally decays with time. TThe ozone hole is a normal feature of our ozone layer. It appears each year when it is winter at one of our poles. So it first appeared when the ozone layer appeared. We first noticed the ozone hole in 1985, above Antartica. One forms over the Arctic pole too when it is winter there. They heal closed again once sunlight reaches the pole. Its not so much the presence or absence of an ozone hole, but its size that is important. It is important to look out for the ozone hole
When was the first hole in the ozone layer found?
The first hole in the ozone layer was discovered in 1985 over Antarctica by British scientists using data from satellite observations. This led to the establishment of the Montreal Protocol in 1987, an international treaty aimed at phasing out the use of ozone-depleting substances.
Where is the hole on the ozone layer?
*The ozone hole is centered on Antarctica, so for it to stretch all the way up to Australia, it would have to be quite large. That means that much of the Antarctic Ocean and the Southern parts of other oceans would be exposed, and these regions are very important to the world ecology. This might harm some species of plankton and other ocean plants and animals (David Palmer: for Ask an Astrophysicist). The ozone hole forms in the ozone layer above the pole that currently is having winter, has a size controlled by the contaminants that deplete ozone (some natural, some Manmade), and may be bigger than (for example) Antarctica. The largest ozone hole occurs over Antarctica, due to Earth's magnetic field directing more hydrogen there from the solar wind. More correctly, the Southern polar hole is formed when the Earth is farthest from the Sun, which reduces the amount of light available to form "fresh" ozone. The ozone "hole" is a thin spot with little ozone. The holes are located at the poles, and essentially disappear when there is summer in the hemisphere with that pole. So one at the South pole in "July" and a different smaller on at the North pole in "January". And they heal up entirely a few months later.
Where is the hole in the ozone found?
Ozone layer is depletion is happening in the stratosphere of the earth's atmosphere. It is majorly concentrated over Antarctica's atmosphere.
How much damage has been caused by the ozone depletion?
much
How much of ozone layer has been destoryed until now?
Ozone over the poles has been destroyed. It is due to the fact that ozone is susceptible to low weather.
What is the deepest part of Antarctica?
Because so much of Antarctica remains a mystery, this definition has not been determined.
Is the atmosphere thin over Antarctica?
No. Atmospheric pressure in Antarctica is about the same as it is anywhere else. Air density is actually greater than it is on most places because it is cold. However, the concentration of ozone in the stratosphere is much less over Antarctica. This is because the dynamics of the atmosphere concentrate man-made compounds called chlorofluorocarbons (CFCs) there. The CFCs act as catalysts that break down ozone into diatomic oxygen (O2).
When was the massive hole in the ozone layer over the Antarctica first discovered?
The ozone hole first appeared when the ozone layer first appeared. The only variable is the "size" of the hole, and the ozone concentration in the "hole". The pole of the Earth that is experiencing winter receives none of the UV that makes ozone (for like a month or more), and ozone naturally decays with time. TThe ozone hole is a normal feature of our ozone layer. It appears each year when it is winter at one of our poles. So it first appeared when the ozone layer appeared. We first noticed the ozone hole in 1985, above Antartica. One forms over the Arctic pole too when it is winter there. They heal closed again once sunlight reaches the pole. Its not so much the presence or absence of an ozone hole, but its size that is important. It is important to look out for the ozone hole
When was the first hole in the ozone layer found?
The first hole in the ozone layer was discovered in 1985 over Antarctica by British scientists using data from satellite observations. This led to the establishment of the Montreal Protocol in 1987, an international treaty aimed at phasing out the use of ozone-depleting substances.
How come Antarctica has the biggest ozone hole?
The process by which chlorofluorocarbons catalyse the decomposition of ozone into oxygen is further catalyzed by the presence of atmospheric ice crystals, hence, this happens more over Antarctica, which is the coldest place on Earth and has the most atmospheric ice crystals.A:This is a much talked topic that why the ozone hole hoe has been formed over Antarctica when there is no one there to release CFC's and most of the CFC's are released in the regions where there is no hole. The answer to this is a simple one. The CFC's released in the mid latitudes are carried by the westerlies towards the poles. These westerlies or westerly winds have their direction from the equators towards the poles from their path they carry the CFC'r which on reaching the oles destroy the ozone. Moreover another reason regarding this matter is that for the depletion of ozone the temperature required should be as low as possible. The ozone depleting reactions are only possible on polar stratospheric clouds i.e. PSC's which are formed only on the poles due to the low temperature there. Thus poles provide the optimum conditions for the ozone depletion to take place making that place suitable for the ozone depletion.
Where is the hole on the ozone layer?
*The ozone hole is centered on Antarctica, so for it to stretch all the way up to Australia, it would have to be quite large. That means that much of the Antarctic Ocean and the Southern parts of other oceans would be exposed, and these regions are very important to the world ecology. This might harm some species of plankton and other ocean plants and animals (David Palmer: for Ask an Astrophysicist). The ozone hole forms in the ozone layer above the pole that currently is having winter, has a size controlled by the contaminants that deplete ozone (some natural, some Manmade), and may be bigger than (for example) Antarctica. The largest ozone hole occurs over Antarctica, due to Earth's magnetic field directing more hydrogen there from the solar wind. More correctly, the Southern polar hole is formed when the Earth is farthest from the Sun, which reduces the amount of light available to form "fresh" ozone. The ozone "hole" is a thin spot with little ozone. The holes are located at the poles, and essentially disappear when there is summer in the hemisphere with that pole. So one at the South pole in "July" and a different smaller on at the North pole in "January". And they heal up entirely a few months later.
How is global warming causing the depletion of ozone over Antarctica?
The ozone does not deplete faster over Anarctica. The "ozone hole" that forms there is naturally larger. Since it is manned year round complete with scientific instrumentation, and it does form an "ozone hole", it is easier to study the affects of ozone depletion on a region that does not have much ozone for a few months each year. Depletion affects the whole planet, but where the Sun shines intensely year-round (like the equator), ozone is made as fast as it is destroyed.There are only two spots on our planet that ever show ANY depletion. The larger spot currently is over the Antarctic and the smaller one, at different times of the year, over the arctic.This is because the only reason their is ever a thinning layer is because the sun cannot reach the ozone layer during these periods. The "hole" (a serious miss term as this is a thinning spot) starts about two weeks after the sun is no longer able to reach this layer. The total "hole" time is about four months. This has been occurring since the beginning of time as far as we are able to tell. The worst condition that we have seen the "hole" in appears to have occurred in the 1800's, before man had ever used any CFC's.The reason that the "hole" is larger currently in the Southern Hemisphere verses the Northern is due to location of our planet relative to the sun during the sunless portion of each cycle. The orbit of our planet is not a perfect circle. Some periods of the year we are much closer to the sun then other periods. There is also the issue of angle to the sun. These combine to give us (at present) a larger thin area in the South, then in the North. The equator has almost no loss at any time of the year.
How much fossil fuel did we use to destroy the ozone layer?
The depletion of the ozone layer was primarily caused by the release of chlorofluorocarbons (CFCs), not fossil fuels. CFCs were commonly used in aerosol sprays and refrigerants. International agreements such as the Montreal Protocol have successfully reduced the use of CFCs to help protect the ozone layer.
Why is the ozone layer hole formation less severe in arctic region compare to Antarctica?
The Antarctic hole is larger than the Arctic because the South Pole is far colder (-80 C) than the North. Cold conditions allow more chlorine and other radicals to destroy the ozone. Ozone is a protective layer in the upper atmosphere. It is formed, when oxygen molecules absorb short wavelength ultra violet radiations from the sun. Ozone is mostly destroyed by free radicals in the atmosphere. When compounds like CFCs (chlorofluorocarbons) and other halocarbons are released, they are dissociated by sunlight into chloride radicals. These radicals attack ozone, thereby decreasing its concentration. This results in a thinning of the ozone layer, and in polar regions, a hole. The holes occur at the poles, and usually in Antarctica because of the extreme cold. During the winter polar stratospheric clouds form which are able to convert gases in the atmosphere into Cl (chlorine) and ClO (chlorine monoxide). When the sun arrives at the end of winter, that is the trigger to begin. This is why the hole is largest in spring.
