Sentences with phrase «ozone at low altitudes»

They point out that the 50 per cent loss of ozone at low altitudes in the stratosphere is equivalent to a 15 per cent loss of total ozone (Nature, vol 259, p 283).

Not exact matches

Although low values at an altitude of around 15 kilometres were known from earlier measurements in the peripheral area of the tropical West Pacific, the complete absence of ozone at all heights was surprising.

Rumen Bojkov, of the UN's World Meteorological Organization, says this might explain the large losses of ozone observed at lower altitudes in the stratosphere.

As the satellite orbits the Earth the star appears lower in the horizon, and ozone levels can be measured at any altitude, in 30 - metre slices.

The amount of wave energy that moves up from the troposphere into the lower stratosphere (roughly 17 to 30 km altitude) significantly affects the temperature, and therefore the ozone depletion, at these altitudes, where the bulk of the ozone layer is located.

Here, a color - coded map showing Earth's north polar region and very low ozone in the stratosphere at an altitude of 12 miles (20 kilometers) in mid-March 2011, the peak of ozone loss.