The satellites of the ESA (Agency Spaces them European) has measured a lowest ozone concentration (from record) in the month of March in the Hemisphere North in the Euro-Atlantic section bringing back to the light a problem, that one of the hole of ozone, than it was believed exceeded with the putting to the ban of clorofluorocarburi (the CFC). In reality it is not thus, because be like India and China of it they make still widely use. Inooltre the CFC that are present in the stratosphere are physically same of the 30 years ago, because of elevated decay time of these substances, that it is of the order of 120 years.
snow
The lowland ozone concentration has been induced because of a Polar Vortex that during the season has been unusually strong preventing the miscelazione of the polar air mass with that to the medium latitudes. As a result of this the temperatures of the North Pole are remained many lowlands recreating conditions similar to those which they take place every year in Antarctica naturally. The temperatures of the stratosphere in the Arctic zone vary from winter to winter. The values lower records have been recorded in 1997 and exactly in 2011.
When in the March month the solar beams return to interest the zone Arctic, they impattando on the icy lake formed in stratosphere during the oxen winter months interact with the CFC making they to release the chlorine atoms and bromine that to they time destroy ozone, for its nature much unstable one, in oxygen molecules.
The scientists are trying an explanation to thus anomalous values of temperature in Arctic center and eventual logons with the climatic changes total us.
Mark Weber of the University of Brema supports that with the climatic changes us the temperatures of the stratosphere are medium more cold, and this means a greater danger upgrades them of destruction of ozone, own as it has happened in the March month.
On the other hand, many studies demonstrate that the stratospheric circulation in the northern hemisphere will be able to evolve in future in favor of ozone, since the stratospheric circulation will favor its transport from the tropici to the high latitudes thus to reduce the depauperamento in Arctic center.
Ozone is a protecting layer of the atmosphere situated to approximately 25 km of altitude, that it acts like a filter from the ultraviolet rays, injurious for the men, such from being able to increase to the risk of cancer to the skin and cataracts.
According to the OMM (meteorological world-wide Organization) if the air mass with lowest concertazione of ozone, now in Arctic center, had to be moved towards the medium latitudes, us could be serious risks to receive a greater ultraviolet cancellation with consequent health hazards of our skin and for our sight.
We will hold to you informed approximately the evolution of the movement of the Arctic stratospheric masses.
snow
The lowland ozone concentration has been induced because of a Polar Vortex that during the season has been unusually strong preventing the miscelazione of the polar air mass with that to the medium latitudes. As a result of this the temperatures of the North Pole are remained many lowlands recreating conditions similar to those which they take place every year in Antarctica naturally. The temperatures of the stratosphere in the Arctic zone vary from winter to winter. The values lower records have been recorded in 1997 and exactly in 2011.
When in the March month the solar beams return to interest the zone Arctic, they impattando on the icy lake formed in stratosphere during the oxen winter months interact with the CFC making they to release the chlorine atoms and bromine that to they time destroy ozone, for its nature much unstable one, in oxygen molecules.
The scientists are trying an explanation to thus anomalous values of temperature in Arctic center and eventual logons with the climatic changes total us.
Mark Weber of the University of Brema supports that with the climatic changes us the temperatures of the stratosphere are medium more cold, and this means a greater danger upgrades them of destruction of ozone, own as it has happened in the March month.
On the other hand, many studies demonstrate that the stratospheric circulation in the northern hemisphere will be able to evolve in future in favor of ozone, since the stratospheric circulation will favor its transport from the tropici to the high latitudes thus to reduce the depauperamento in Arctic center.
Ozone is a protecting layer of the atmosphere situated to approximately 25 km of altitude, that it acts like a filter from the ultraviolet rays, injurious for the men, such from being able to increase to the risk of cancer to the skin and cataracts.
According to the OMM (meteorological world-wide Organization) if the air mass with lowest concertazione of ozone, now in Arctic center, had to be moved towards the medium latitudes, us could be serious risks to receive a greater ultraviolet cancellation with consequent health hazards of our skin and for our sight.
We will hold to you informed approximately the evolution of the movement of the Arctic stratospheric masses.
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