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Why is the ozone hole not constant over time?
The ozone hole is not constant. Various man made chemicals vary the size of it.
What are the reasons for ozone hole which is not constant over the time?
There are various reasons. The use of CFC's being the major.
Where was an “ozone hole” discovered in the 1980s?
The ozone hole was discovered over Antarctica.
Why is the ozone hole only there for a short time?
The ozone hole is only for a short time because of the weather. It keeps replenishing the ozone.
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
An the ozone hole be a factor in 2012 predictions?
No, it could not be. The hole was not there at the time of Mayan's.
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.
What is causing the ozone layer to change?
The amount of ozone in a space is a balance of net producers of ozone, net reducers of ozone, and time (ozone decays on its own...).So the ozone layer changes with temperature, time and season. For example, the ozone hole is an annual phenomenon at each pole. Only the size and duration of the hole may be due to Man's actions.
What causes changes to the ozone layer?
The amount of ozone in a space is a balance of net producers of ozone, net reducers of ozone, and time (ozone decays on its own...).So the ozone layer changes with temperature, time and season. For example, the ozone hole is an annual phenomenon at each pole. Only the size and duration of the hole may be due to Man's actions.
What did other countries do to fix the ozone hole in Antarctica?
Other countries took action to fix the ozone hole in Antarctica by signing the Montreal Protocol in 1987, which aimed to phase out the production of ozone-depleting substances. This treaty successfully led to a decrease in the use of these harmful chemicals, resulting in a gradual recovery of the ozone layer over time.
Is the ozone hole repairable?
No, the ozone hole is not permanent, but does reappear every year. The hole over each pole is only there for a short time each year, during that pole's winter. Lack of sunlight is the cause of this hole.
Has the ozone layer shifted over time?
Yes, the ozone has shifted over time. It changes with weather each season.
